This section provides an overview for zener diodes as well as their applications and principles. Also, please take a look at the list of 58 zener diode manufacturers and their company rankings. Here are the top-ranked zener diode companies as of November, 2024: 1.Micross Components, 2.Topdiode Manufacturing Company Limited, 3.Won-Top Electronics Co., Ltd..
Table of Contents
A Zener diode is a diode consisting of an n-type semiconductor and a p-type semiconductor connected together, and has a relatively small reverse voltage and a stable voltage value. They are also called constant voltage diodes.
Normal diodes exhibit a rectifying effect in which the degree of conduction changes according to the polarity of the bias applied to both ends, and no current flows even when a very high reverse bias voltage is applied. However, a special type of diode called a Zener diode exhibits diode characteristics that allow a large amount of current to flow rapidly when a relatively small reverse bias voltage above a certain threshold is applied.
By utilizing the unique rectification characteristics of Zener diodes, a constant voltage can be maintained in the circuit.
Zener diodes are characterized by the fact that when a reverse bias above a certain value is applied, a rapid flow of current occurs and further voltage increases are suppressed. For this reason, they are used to maintain the voltage of unstable power supplies at a constant level and to protect circuits from surge currents.
For example, a Zener diode is connected in parallel with an unstable power supply with a reverse bias. As a result, if the voltage of the power supply is higher than the breakdown value of the Zener diode, a large current flows through the Zener diode, thus lowering the voltage and keeping the voltage across the circuit constant.
The origin of the unique characteristics exhibited by Zener diodes is said to be related to two factors: the Zener effect and the avalanche effect. The former is a phenomenon (unique to Zener diodes) in which the depletion layer generated when a reverse bias is applied becomes thinner by intentionally creating a pn junction using a semiconductor with a high concentration of impurities, and at a certain threshold value, electrons jump through the depletion layer due to the tunneling effect, causing electrical conduction to occur.
The latter is a phenomenon in which electrons accelerated more strongly than those with a higher bias collide with semiconductor atoms, knocking out many carriers, and the electrons knocked out repeatedly collide with semiconductor atoms, knocking out more carriers, causing an electron avalanche and large current flow.
When the bias exceeds the threshold, the avalanche effect occurs, in which electrons that jump over the depletion layer due to the Zener effect cause a high reverse bias that results in a large current, which in turn causes a voltage drop, thus lowering the voltage to the threshold.
The voltage applied to the circuit is then kept constant, stabilizing an unstable power supply and protecting the circuit from external surges. Currently, the reverse breakdown voltage of these Zener diodes can be fabricated with extreme controllability, depending on the impurity concentration ratio and semiconductor process treatment.
A wide range of types and tolerances are available on the market, from 1 V to several hundred V, with narrow tolerances of ±0.05% depending on the voltage value.
Series Connection
When connecting Zener diodes in series, pay attention to the value of the Zener current lz that flows. The maximum allowable current for the entire series corresponds to the smaller allowable current of the connected Zener diode. Therefore, use it within the smaller allowable loss.
Also note that if the Zener current for the Zener voltage specification is different for each diode, the voltage value will be different from the Zener voltage you want to obtain. The reason for this is that one of the Zener diodes will not have the specified Zener current value.
Parallel Connection
Zener diodes cannot be connected in parallel because it increases the allowable losses of the Zener diode. Note that when connected in parallel, the zener current may concentrate in whichever has the lower zener voltage and exceed the allowable power dissipation.
Temperature Characteristics
Temperature characteristics mean that the characteristics change with temperature. In the case of Zener diode, this temperature characteristic changes depending on the Zener voltage. The reason for this is the "tunneling effect" and the "avalanche effect."
The temperature coefficient of the tunneling effect is negative, while that of the avalanche effect is positive. Therefore, if the Zener voltage is low, the Zener voltage will decrease as the ambient temperature rises. On the other hand, those with high Zener voltage are characterized by an increase in Zener voltage as ambient temperature rises.
A low Zener voltage here generally refers to a voltage lower than 5 V, while a high Zener voltage here generally refers to a voltage higher than 5 V. At around 5 V, the Zener phenomenon is caused by the combined effects of the tunneling and avalanche effects. At this time, the temperature characteristics are also about the same, making the Zener voltage less sensitive to ambient temperature.
Noise
In Zener diodes, the higher the Zener voltage, the higher the noise, and the higher the current, the lower the noise. To prevent noise, multiple elements with low Zener voltage should be connected in series. Noise can also be removed by connecting a capacitor in parallel with the Zener diode.
Although the characteristics and uses of Zener diodes have been described, there are various other semiconductor diode devices. Here is a supplementary explanation of the differences from other diodes and their characteristics.
One device that uses reverse characteristics is the TVS (Transient Voltage Suppressors) diode. Like Zener diodes, these diodes are used to provide over voltage protection, but unlike Zener diodes, TVSs are normally turned off and only turn on when a surge voltage is applied.
Schottky barrier diodes, which utilize a metal-semiconductor Schottky barrier, have even lower voltage values and are often used for rectifying applications with high switching speeds. PIN diodes with reduced terminal capacitance for RF (high frequency) applications are also used.
*Including some distributors, etc.
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Microchip Technology Incorporated was incorporated in 1989 and is headquartered in Chandler, Arizona. The company is a developer and manufacturer of control solutions for global markets including the automotive, industrial, communications, human-machine interface, and connectivity industries. The company’s products include microcontrollers, field-programmable gate array products, MOSFET and radio frequency products, and both wired and wireless communications products. The company’s services include wafer foundry and assembly services, test subcontracting manufacturing services, development tools for enabling system designers to program microcontrollers and processors, and timing system products.
Sensitron Semiconductor, founded in 1969 with corporate headquarters located in the USA, is a manufacturer of power electronic components and systems for the defense, aerospace, space, and medical markets. The company's products include high-power rectifier bridges, motion control modules, TVS modules, solid-state power controllers, and high voltage diode assemblies, as well as various services including, engineering, electrical and mechanical design, material science expertise, and testing of a finished power system. The company's facility includes a wafer fabrication clean room and a microelectronics manufacturing clean room.
NTE Electronics, Inc, established in 1976, and based in New Jersey, USA, is a manufacturer and supplier of electrical components and equipment. The product portfolio of the company includes wide range of bulbs, cable management, semiconductors, chemicals, adhesives, connectors, optoelectronics, power products, passive components, tools, and hardware. The company products are ISO certified and include 23000 devices. The products are used in many industries like electrical, chemical, and other consumer or commercial applications.
The Central Semiconductor Corporation is an ISO 9001:2015-certified electronics manufacturer in Hauppauge, NY. Since it was founded in 1974, the corporation has expanded to serve the global market. Its main product line is discrete semiconductors. All products are RoHS2 and REACH compliant. The corporation also manufactures diodes, rectifiers, transistors, and protection devices. Central Semiconductor provides semiconductor solutions for several industries including alternative energy, consumer products, scientific/industrial, networking, lighting, and the medical industry.
MCC is a manufacturer of semiconductors, founded in 1991, and has its headquarters located in California, USA. Their portfolio contains five core semiconductor types—offering a full range of diodes, rectifiers, transistors, MOSFETs, voltage regulators, and protection devices. Their products are used to optimize power management, enable signal processing, protect circuits, and enhance the performance of electronic systems across various sectors such as consumer electronics, aerospace, medical devices, and more. The company has received IATF 16949:2016 and ISO 9001:2015 certifications.
Diodes Incorporated is a supplier for the consumer electronics, computing, communications, industrial, and automotive markets. Diodes Incorporated designs, manufactures, and supplies application-specific standard products in the discrete, logic, analog, and mixed-signal semiconductor markets worldwide. It focuses on low pin count semiconductor devices. Diodes specializes in semiconductor products, such as MOSFET, TVS, and performance Schottky rectifiers, transient voltage suppressors and other devices. It also provides analog products, such as power management devices comprising AC-DC and DC-DC converters, signaling devices, CMOS devices, and analog switches. Diodes Incorporated was incorporated in 1959 and is headquartered in Plano, Texas.
Littlefuse was founded in 1927 and headquartered in the United States. Littlefuse is a diversified industrial technology manufacturing company with customers globally. Littlefuse has products segments which are electronic, industrial, and transportation. Electronic segment products include fuses and fuse accessories, positive temperature coefficient resettable fuses, polymer electrostatic discharge suppressors, and varistors. Transportation products include blade, resettable, and high-current and high-voltage fuses, as well as battery cable protectors; fuses, switches, relays, circuit breakers, and power distribution modules. The Industrial segment offerings include contactors, transformers, and temperature sensors for use in renewable energy and energy storage systems, electric vehicle infrastructure, HVAC systems.
New Jersey Semiconductor, established in 1957 and based in Springfield, NJ, USA, is an ISO 9001:2015 certified manufacturer and supplier of electronic devices. The company's product range includes RF diodes, regulator diodes, bipolar transistors, FET transistors, and IGBT transistors. These products are designed for various circuitry and electronic operations in different environments. They serve industries such as military, avionics, industrial, and commercial. The company offers services including knowledgeable sales support, engineering and technical guidance, and prompt delivery from its inventory.
Vishay Intertechnology, Inc. (Vishay) was incorporated in 1962 and is headquartered in Malvern, Pennsylvania. The company serves the industrial, automotive, telecommunications, consumer products, and medical end markets and sells its products under numerous brand names inlcuding Siliconix, Draloric, Beyschlag, UltraSource, and Applied Thin-Film Products. The company manufactures and sells discrete semiconductors and passive electronic components in globally while operating in six market segments: MOSFETs, diodes, optoelectronic components, resistors, inductors, and capacitors.
Micross Components, established in 1978 and headquartered in Orlando, Florida, United States, is a manufacturer and supplier of specialty electronic components for military, and demanding industrial applications. The company's product range includes bare die and wafer processing, advanced and custom packaging, component modifications, and related interconnect offerings. These products are used in a wide range of industries, including aerospace, energy, light sources, research, and other scientific fields. Micross Components is devoted to providing quality products and services to its customers. The company is ISO 9001:2015 certified and has a long history of customer satisfaction.
AiT Semiconductor, established in 1996 at Taiwan, is a manufacturer of semiconductors, specializing in the design and production of analog and mixed-signal ICs. The company offers a comprehensive portfolio of IC solutions for various applications, including power management, LED lighting, audio, and wireless network/communication. They manufacture power switches, inductors, regulator LDO, EEPROM memory and resonators along with other electrical solutions. These power components are used in multiple industries such as consumer, medical, industrial, communication and IoT sectors. Their products are equipped with improved performance, low power consumption, and robust sustainability.
Continental Device India Pvt. Ltd. (CDIL), established in 1964, is a semiconductor manufacturer headquartered in New Delhi, India. Certified with ISO 9001:2015 and ISO 14001, the company produces TRIACs, SCRs, and TVSs. It also offers complementary products, including diodes, rectifiers, and transistors. These products adhere to the European Union's Restriction of Hazardous Substances in Electrical and Electronic Equipment (RoHS) Directives. The company expanded its services by launching the Electronic Manufacturing Services (EMS) division, Deltron, in 1982. It also manufactures space-grade semiconductor devices for the Indian Space Research Organisation (ISRO).
Yangzhou Yangjie Electronic Technology Co. Ltd has been a manufacturer of semiconductors headquartered in China since 2000. The company designs and manufactures Rectifier devices, modules, automotive electronics, protection devices, and various switches and diodes for small signals. There are also ICs, Mosfet, SiCs, and Wafer in 4-inch and 6-inch types for various applications. Their products have uses in industries related to automotive electronics, industrial control, power supply, home appliances, and other similar fields.
Jiangsu Yunyi Electric Co., Ltd., established in 2000 and based inTongshan, is a manufacturer of automotive electronic parts. The company is specialised in producing automotive alternator rectifiers, voltage regulators, semiconductors, NOx sensors, precision injection parts, and wiper blade systems. The company is one of the first drafters of standards for Chinese internal combustion engines in the electric and electonic industries. It is the creator of the industry standard for automotive high-power diodes and alternator rectifiers. The company has been accredited by the National ISO 17025-certified lab and also completes the IATF16949, ISO 14001, and OHSAS 18001 systems.
Topdiode Manufacturing Company Limited is a manufacturer and supplier of multilayer ceramic chip capacitors (MLCCs) and diodes. Established in 1995, the company is headquartered in Changping, Dongguan, Guangdong, China. Its main activities encompass the design, production, and distribution of MLCCs and diodes such as Ceramic capacitors, Tantalum capacitors, Varistors, Aluminum Electrolytic capacitors, and Film capacitors. Topdiode specializes in electronic components that are essential in various industries, including telecommunications, automotive, and consumer electronics. Topdiode Manufacturing Company Limited offers comprehensive services such as technical support and custom solutions.
PANJIT was founded in 1986 in Taiwan as a manufacturer of semiconductors. Their product portfolio includes Power Management IC such as Flyback Controller/Active Bridge Controller for various circuit structures and applications. They also produce Low/Medium/High voltage MOSFETs and Schottky Rectifiers for improved power efficiency, low leakage of current, and stability. The SiC Devices are similar to third-generation semiconductors and there is also manufacturing of Diodes, Transistors, Bridges, and Protection Devices. These products are applicable in the Computing, Automotive, Communication, Consumer, and Power industries.
YAGEO Group, a global supplier of passive components, including chip resistors, MLCC, through-hole resistors, wireless components, inductors and coils, established in 1977 and is based in Taiwan. The Group serves multiple industries, including automotive, telecommunications, smart manufacturing, and power and energy. They offer complete solutions for body and convenience, powertrain and safety, comfort and infotainment, and e-mobility in the automotive industry. They have established a strong global presence with 29 sales offices, 51 production sites, 20 research and development centers, and 40,000 employees worldwide.
Won-Top Electronics Co., Ltd., established in 1992 and based in Kaohsiung, Taiwan, is a manufacturer of diodes, bridge rectifiers, and protection devices. The company produces other products, such as power rectifiers, small signal-switching diodes, and protection devices. All these products are used in different applications, including automotive, lighting, communication, energy harvesting, and smart grip. The manufacturing facilities of the company are located in Shanghai and Shandong. There are around 9 billion devices produced and supplied to customers in America, Asia, Europe, and the Middle East regions.
Jinan Jingheng Electronics Co., Ltd. is a manufacturer and supplier of electronic components. Established in 1958, the company is based in Jinan, Shandong, China. The company's main activities involve designing, manufacturing, and supplying a diverse range of electronic components, including resistors, capacitors, and inductors. Its diodes products such as Low Vf Schottky, Schottky Barrier Rectifier, SIC Schottky, General Purpose Rectifier and Fast Recovery Rectifier cater to industries such as electronics manufacturing and telecommunications. Jinan Jingheng Electronics offers services like technical support and customized component solutions to customers, such as Ge, Philips, Osram, Panasonic, Samsung, Foxconn, Bosh.
Diotec Semiconductor AG is a German-based semiconductor manufacturer and supplier of diodes and rectifiers which was founded in 1973 and is headquartered in Heitersheim, Germany. They specialize in producing discrete semiconductors, both standard and customized, readily available for worldwide delivery. Their product portfolio includes diodes, rectifiers, protection devices (TVS/ESD), transistors, and regulators. These products are used in various applications such as in industrial, energy, mobility, lighting, and consumer electronics, contributing to power management, signal conditioning, and circuit protection in different electronic systems and devices.
Jiangsu Changjing Electronics Co., Ltd is a manufacturer of semiconductor components. Established in 1972, the company is headquartered in Nanjing, Jiangsu, China. The company specializes in producing and distributing semiconductor products, including diodes, transistors, and rectifiers. Its product offerings such as diodes, rectifiers, transistors, MOSFETs, LDO,DC-DC, Crystal and Crystal Oscillators cater to industries such as electronics manufacturing and energy management. Jiangsu Changjing Electronics offers services like technical support and component customization. Its semiconductor components application application include instrumentation, security system, mobile phone, networking, and vehicle electronics, as well as power battery, lighting, bluetooth and wireless technologies.
Origin Co.,Ltd. was founded in 1938 and is a manufacturer of power supplies, precision machinery parts, and synthetic resin paint based in Saitama, Japan. The company manufactures various products such as torque limiter, selectable clutch, general solvent paint, resistance welding machines, and optical bonding system. The products have been used and applied in various sectors such as mobility, medical care, housing, industrial equipment, and entertainment. The company has certified with ISO 14001 and ISO 9001 standards for the management and environment system.
Nantong Hantech Electronics Co., Ltd., established in 1969 and headquartered in Jiangsu, China, is a supplier and manufacturer specializing in high-voltage diodes and rectifier diodes. Their extensive product line includes high voltage diodes for AC to DC conversion in applications like power supplies, welding machines, and microwave ovens. Additionally, they offer rectifier diodes for LED drivers, solar cells, and battery chargers, Schottky diodes for high-frequency applications, varactors for circuit tuning, and transistors for signal amplification and switching. The company's products are compliant with RoHS and REACH regulations.
Nexperia is based in the Netherlands and is a designer, manufacturer, and global supplier of semiconductors. Their stock includes Bipolar Transistors, Diodes, MOSFETs, GaN FETs, and various ICs that are used as basic components in electronic systems and devices and have multiple applications. These parts are supplied to the automotive, computing, power, and electronic industries as parts of a system or as essential tools for various gadgets and devices. They are also used by manufacturers of consumer appliances such as smartphones, batteries, aerial vehicles, fire detectors, and more.
Naina Semiconductor Limited established in Noida, Uttar Pradesh in 1988 is a manufacturer of power semiconductors used in Welding machines, Battery Chargers, and Power Supplies. Their product portfolio includes Zener Diodes, Auto Rectifiers, Solar Diodes, Power Modules, and Rectifier Stacks/Assemblies. The company has ISO 9001:2015 Certification and their devices has international JEDEC package standards. They have a national distribution channel and customer support center and they export to the USA, UK, Middle-East, Europe, and South-East Asia.
Wuxi Xuyang Electronics Co., Ltd., founded in 2001 and based in Jiangsu, China, is a manufacturer of thermistor diodes, Zener diodes, transient voltage suppressor diodes, and DIAC trigger diodes. These electronic components are used for precision and stability, making them essential in various applications. Thermistor diodes are needed for their temperature-sensing capabilities, helping maintain optimal operating conditions in electronic devices. DIAC trigger diodes are essential for triggering and controlling the firing angle in electronic circuits. These components find applications across industries such as telecommunications, automotive, consumer electronics, and industrial automation.
Toshiba Electronic Devices & Storage Corporation is a division of Toshiba focusing on providing designs for end-product developers as well as semiconductor and drive equipment for automotive, industrial equipment, green energy, and consumer and personal electronic devices. Toshiba’s storage products include cloud-scale and enterprise-level products, and PC hard drives. Semiconductor products include Si Cower devices, MOSFETs, IGBTs, IEGTs, isolators, solid state relays, power management and intelligent power ICs, diodes, bipolar transistors, microcontrollers, automotive devices, ICs for wireless communication equipment, general purpose logic ICs, radio-frequency devices, sensors, and linear image sensors.
Comchip, founded in New Taipei City, Taiwan, in 2000 is a manufacturer of bridge rectifiers, fast efficient rectifiers, and switching diodes. The company's product portfolio includes Zener diodes, Schottky diodes, TVS and ESD surge protectors. Their products find application in applications in lighting, automotive, industrial computers, and TFT-LCD panels and they serve markets such as Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure. The company has a national distribution network and a customer support center.
Lision Technology Inc. is a Taiwanese manufacturer of discrete, motor and analog integrated circuit (IC) products established in 2001 and based in Zhongli City, Taoyuan. The company manufactures various discrete products including diodes and metal-oxide-semiconductor field-effect transistors (MOSFETs), analog products such as regulators and timers, and motor products including application-specific integrated circuits (ASICs). They also offer design support and capacity planning services for customers requiring technical assistance. Lision Technology Inc. primarily serves client companies and OEMs in the consumer electronics, computing, and communication sectors.
Tyntek Corporation, established in 1987, and based in Taiwan, China, is a manufacturer and supplier of quality optoelectronic and LED lighting products. Tyntek offers a wide range of products, including LED lamps, displays, and modules, serving various industries such as automotive, consumer electronics, and industrial applications. Courtesy of its wide research and development capabilities, Tyntek provides new and energy-efficient solutions that meet the evolving needs of its customers. As a dependable provider of optoelectronic solutions, Tyntek continues to deliver good products and perfect customer service to clients worldwide.
HY Electronic (Cayman) Limited, founded in 1959 with headquarters in Taiwan, is a manufacturer of semiconductor rectification components for power separation. The company's products include diodes, bridge rectifiers, LED driver boards, ICs, and power modules used in the computing, communication, automotive, and consumer industries. HY Electronic’s products are found in EV chargers, automotive powertrains, home appliances, personal computing devices, networking devices, and many more. The company is also a developer of green-friendly products for the LED lighting, solar, and automotive power-saving markets.
Rectron Limited, established in 1976 is a publicly-traded company specializing in the manufacture and supply of discrete semi-conductors. Its product line includes bridge and recovery rectifiers, high voltage products, ESD, Schottky, and signal switching diodes, transistors, MOSFET, silicon carbide schottky and more. Rectron serves many industries including automotive, consumer electronics, industrial automation, telecommunications and medical devices. The Taipei-based semi conductor manufacturer operates globally and has subsidiaries in Los Angeles, London, and Hong Kong.
WEE Technology Company Limited, established in 2000, is a Chinese manufacturer based in Wan Chai, Hong Kong, specializing in surface-mounted device (SMD) and dual-in-line package (DIP) diodes and rectifiers. The company’s offerings include a range of rectifiers, including general-purpose, fast and ultra-fast recovery, high-efficiency, and single-phase bridge rectifiers. The company also manufactures transient voltage high-speed switching diodes, low-level signal transistors, and transient voltage suppressors. It further provides Schottky barrier diodes, named after their inventor, the oldest semiconductor devices with various applications. These products cater to various industries, including the energy sector, communication equipment manufacturing, household appliances, medical devices, and solar photovoltaic applications.
Beijing Silk Road Enterprise Management Services Co. Ltd., established in 2013 with headquarters in Cangnan, Zhejiang, China, is a manufacturer of composite plastic packaging materials. The company's core products include PP-woven sacks, PP-woven fabrics, and PP-woven bags. It also produces packaging for food and pharmaceutical products, including plastic paper bags suitable for sugar and rice, as well as plastic standup pouches and aluminum foil bags. These products are used for packing fertilizer, foods, and other household consumables, such as detergents and beverages. The company offers custom printing and labeling of packaging suitable for retail buyers.
Changzhou Trustec Co. Ltd., established in 2011, is a Chinese manufacturer and supplier of semiconductor discrete devices based in Changzhou, Jiangsu. The company's product range includes axial and surface-mounted diodes, rectifier diodes, as well as featured products such as fast recovery diodes, transient voltage suppressor diodes, and bridge rectifier diodes. These products have applications in automotive, green lighting, household appliances, power supplies, and chargers. The company follows ISO/TS 16949:2009 for its quality management standards.
Trex Semiconductor is a developer and manufacturer of integrated circuit (IC) products that was established in Tokyo, Japan, in 1995. The company offers voltage regulator ICs for providing stable voltage output from variable input voltage, DC/DC converter ICs for power management applications, and hall ICs for detecting magnetic fields and outputting digital signals. It also offers design and production services for custom orders or unique projects. The company mainly serves client OEMs in the automotive, consumer electronics, and power distribution industries.
Shenzhen Hua Xuan Yang Electronics Co Ltd, established in 2008 and based in Shanghai, China is a manufacturer and supplier of electrical components and solutions. Its product portfolio includes power transistors, diodes, dual channel mosfet, bridge rectifiers, semiconductor diodes, and voltage stabilizers. They are used in multiple industries such as wireless chargers, power supply, audio, energy-saving lamps, communication products, and electronic solutions. The company offers ISO-certified, environmentally friendly, and lead-free products.
Srivigren Solutions Private Limited (SSPL), established in 2014 and based in North Delhi, India, is a manufacturer and supplier of electronic goods. The company's product range includes LED flood lights, Halonix LED street lights, LED down lights, LED MR16 bulbs, and LED ceiling lights. These products are primarily designed for lighting applications in street, flood, and commercial settings. The company primarily serves the electronics and electronic appliances manufacturing industry. Its services comprise the manufacturing and trading of these electronic products.
Shanghai Yint Electronic Co Ltd, established in 2006 and based in Shanghai, China, is a manufacturer and supplier of diodes and suppressors. Its product portfolio includes diodes, poly switch resettable PTCs, thyristor surge suppressors, metal oxide varistors, and sensors. They are used in multiple industries such as electrical equipments, home appliances, and lighting. The company also offers quality control with customer services such as welding, pickling, molding, semiconductor diffusion, printing, and packaging.
Electronics Industry Public Company Limited (EIC), founded in 1984 in Thailand, is a major international manufacturer and supplier of discrete semiconductors. It offers over 15,000 parts and more than 50 package types, showcasing its adaptability in the industry. The company has established itself as a designer, manufacturer, and distributor of discrete semiconductors. With a strong distribution network and over 98% of sales being export-oriented, the company is a dependable partner for customers worldwide. It has specialized wafer and assembly plants and is determined to provide quality products to meet the needs of its customers.
ROHM Semiconductor was incorporated in 1940 and is headquartered in Kyoto, Japan. ROHM manufactures and sells electronic components worldwide. ROHM operates through the segments ICs, discrete semiconductor devices, and modules. ROHM provides ICs comprising memory, amplifiers and linear, power management, clocks and timers, switches and multiplexers, logic, data converters, sensors and MEMS, display drivers, motor/actuator drivers, interfaces, communication and speech synthesis LSI, audio and video, and microcontrollers. ROHM also offers discrete semiconductor products include MOSFETs, bipolar transistors, and diodes; power devices, including power transistors and diodes, SiC power devices, IGBT, and IPM; passive devices, such as resistors, and conductive polymer and tantalum capacitors; and various modules among others.
Weidmüller Interface GmbH & Co. KG, established in 1850 and headquartered in Detmold, Germany, is a supplier of electronic equipment for electrical connectivity. The company's product range spans terminal blocks, connectors, relay modules, and power supplies. The company also offers automation and industrial PC software, accessories, and assemblies. It provides solutions in various fields such as decentralized automation, E-mobility, photovoltaics, single-pair Ethernet, and smart metering. The company holds DIN EN ISO 9001 accreditation for quality assurance management and offers various services such as customized products, support, digital ordering options, consulting, and engineering.
Kingtronics International Company was established in 1990 in Hong Kong and has several factories across China manufacturing electronic components such as bridge rectifiers. The company is ISO 9001:2015 certified and works with several distributors around the world including KORE, Prod. El, DTDS, and others. The company produces two kinds of electronics components: passive components such as aluminum electrolytic capacitors including radial type and axial type, and active components such as diodes, transistors, and bridge rectifiers.
Ranking as of November 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | Micross Components |
16.7%
|
2 | Topdiode Manufacturing Company Limited |
9.5%
|
3 | Won-Top Electronics Co., Ltd. |
7.1%
|
4 | VPT Components Inc. |
4.8%
|
5 | Digitron Semiconductors |
4.8%
|
6 | Meritek Electronics Corporation |
4.8%
|
7 | Wuxi Xuyang Electronics Co., Ltd. |
4.8%
|
8 | New Jersey Semiconductor |
4.8%
|
9 | Nexperia B.V. |
4.8%
|
10 | YAGEO |
4.8%
|
Derivation Method
The ranking is calculated based on the click share within the zener diode page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
Country | Number of Companies | Share (%) |
---|---|---|
China | 16 | 32.7% |
United States of America | 13 | 26.5% |
Taiwan | 5 | 10.2% |
India | 5 | 10.2% |
Japan | 4 | 8.2% |
Germany | 2 | 4.1% |
Netherlands | 1 | 2.0% |
Thailand | 1 | 2.0% |
Republic of Korea | 1 | 2.0% |
United Kingdom | 1 | 2.0% |