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This section provides an overview for transistor arrays as well as their applications and principles. Also, please take a look at the list of 19 transistor array manufacturers and their company rankings. Here are the top-ranked transistor array companies as of December, 2024: 1.Sensitron Semiconductor, 2.Renesas Electronics Corporation., 3.Microsemi Corporation.
Table of Contents
A transistor array is a component with multiple transistors in one package. Transistors are semiconductor devices used for switching.
The advantage of this component is that it can control multiple output relays and other devices in a small area. If mounted individually, the board area must be designed to be significant, while the board pattern should become long. However, this can cause malfunctions due to noise. On the other hand, transistor array is more economical and functional because they are smaller, lighter, and unaffected by noise.
Transistor arrays are widely used in microcontrollers. Microcontrollers are control boards that are frequently used in home appliances such as washing machines and are an indispensable part of our daily lives.
Until the advent of transistor arrays, multiple transistors were mounted as a single item. This was not a problem, but space and cost savings were realized after the transistor arrays were introduced. In addition, one no longer had to worry about pattern routing, which reduced design effort and improved noise protection. Today, transistor arrays are essential electronic components on control boards.
As mentioned above, transistor arrays are electronic components consisting of multiple transistors in a single package. A transistor is a semiconductor device. It is a product of three layers of P-type and N-type semiconductors, and there are PNP-type and NPN-type transistors.
The PNP-type and NPN-type transistors normally behave as insulators in a circuit, but when a voltage is applied to the middle layer, the layers at both ends become conductors. This is how transistors work.
Transistors are mainly used as outputs for microcontrollers. Before the 2000s, bipolar transistors were widely used in transistor arrays. Bipolar transistors were commonly used in transistor arrays before the 2000s because of their ability to conduct large currents and their resistance to noise. Transistor arrays consisting of several of these transistors in a row were the mainstream.
Today, high-speed, low-loss MOSFETs are the mainstream. MOSFET arrays have replaced most transistor arrays.
There are different types of transistor arrays depending on the transistors used inside.
DMOS FET: Transistor arrays that can control large currents and have low loss even when used at low currents.
Single Bipolar Transistor: Transistor arrays that can provide low loss when used at low currents but cannot control large currents.
Darlington Bipolar Transistor: Transistor arrays capable of controlling large currents, but loss occurs when used at low currents.
There is also a difference in whether the input logic is high active (current flows when a high level is an input to the input pin) or low active (current flows when a low level is an input to the input pin). There are also different types, depending on whether or not a clamp diode, which is necessary when driving a relay, etc., is built in.
There are two types of transistor arrays, depending on the type of output current, namely: source type and sink type. The source type turns the contacts on and off on the positive pole side of the load. This is the mode of operation in which current is discharged from the transistor arrays toward the load.
On the other hand, the sink type turns the contact ON/OFF on the ground side of the load. The transistor arrays draw current from the load mode of operation.
*Including some distributors, etc.
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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.
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.
Backer Hotwatt was established in 1952 and is based in Danvers Massachusetts with offices and subsidiaries across North America, Asia, and Europe. The company is a manufacturer of resistance heating elements to markets including medical devices, semiconductors, photonics, test & measurement devices, and automotive & fuel cells. The company’s standard heating element products include cartridge heaters, sun rod heaters, ceramic heaters, and strip heaters. The company also sells temperature and voltage-controlling devices and accessories such as terminal covers, insulating beads, and various sleeving.
Integra Technologies, founded in 1997, is a manufacturer and supplier of RF power devices located in El Segundo, California. The company specializes in providing radar signal amplification solutions, encompassing RF power transistors, RF power amplifier modules, and RF power pellets. These products are designed to handle high-power RF signals efficiently and are used in various applications, such as avionics, defense, instrumentation, and weather radar. Integra Technologies ensures continued support for legacy programs and offers customization options to meet specific design requirements.
OMMIC, founded in Lowell, MA, in 1950 is a manufacturer of semiconductor products for Data Center, Telecommunication and Industrial and Defense applications. The company's product portfolio includes Optical Networking Solutions, Lightwave Components, Diodes, MMICs, and SDI Products. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure. They have design centers and sales offices throughout North America, Europe and Asia and have ISO9001 international quality standard and ISO14001 environmental management standard.
Microsemi Corporation was founded in 1959 and is headquartered in Aliso Viejo, California. Microsemi is a subsidiary of Microchip Technology Incorporated. Microsemi is a provider of semiconductor and system solutions for aerospace, communications, data center, and industrial markets. A few of Microsemi’s product lines include high-performance and radiation-hardened analog mixed-signal integrated circuits, FPGAs, power management products, timing and synchronization devices, and RF solutions. Microsemi’s technological strengths are in connectivity, energy efficiency, miniaturization, power management, and security.
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.
Rochester Electronics, LLC is a manufacturer stocking distributor of end-of-life semiconductors and the broadest range of active semiconductors that is headquartered in Newburyport, Massachusetts, and was founded in 1981. The company caters to manufacturing services ranging from design, wafer processing, testing, reliability, and IP Archiving. These specifically include OCM, build-to-order products, process flows, and standard packaging creation. The company pivots on manufacturing and distributing semiconductors that are no longer produced by its original manufacturer.
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.
Renesas Electronics Corporation was established in 2002 and is headquartered in Tokyo, Japan. Renesas is a global research, design, and manufacturer of semiconductors used in industries spanning automotive, consumer electronics, the internet of things, power & energy, and industrial sectors. Renesas manufactures both analog and digital products. Analog products include amplifiers, audio & video devices, data converters, PLC, and switches & multiplexers. Digital products include microcontrollers, memory components, sensors, wireless connectivity products, and others. Renesas also offers design resources such as kits, development tools, partner programs, and design tools.
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.
Solid State Devices, Inc. (SSDI) is a manufacturer of electronic components and modules established 1967 and based in La Mirada, California, USA. The company’s products include thyristors used as switches in semiconductor applications, power modules for standard or hybrid power management applications in electronics, and power multipliers for different voltage ranges. It also offers components for electrical circuits, including suppressors, transistors, and rectifiers. The company is ISO 9001:2000-certified, and serves clients in the telecom, satellite manufacturing, and defense sectors.
Texas Instruments Incorporated was founded in 1930 and is headquartered in Dallas, Texas. Texas Instruments is a producer of high tech equipment for industrial, automotive, personal electronics, communications equipment industries. Texas Instruments designs, manufactures, and sells semiconductors to electronics designers and manufacturers in the United States and internationally. Texas Instruments operates in two segments: analog and embedded processing. The Analog segment offers power products, including battery-management solutions, DC/DC switching regulators, power switches, linear regulators, voltage references, and lighting products. The Embedded Processing segment offers microcontrollers that are used in fields such as electronic equipment and digital signal processors for mathematical computations.
ST Micro Electronics is a global semiconductor company serving customers with innovations to have a positive impact on people's lives. Their product line is micro electronic systems, such as switches, controllers, sensors and drivers. The main selling point of ST Micro Electronics is its provision of sustainable products, and introducing their electronics to create a more sustainable world. The company, as well as providing the electronic devices, also provides software and support, ensuring that all fields are covered to provide a fully provide a supported and strong relationship with their customer base. ST Micro Electronics believe that technology plays a key role in helping to solve environmental and social challenges, which is why their semiconductor technologies start with their employees, their customers and partners.
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.
Richardson RFPD, based in Geneva, Illinois, is an electronic component distributor that became a subsidiary of Arrow Electronics in 2011. The company stocks products such as antennas, power supplies, and ICs, and its engineering team brings together over 600 years of combined design experience in IoT product development, wireless, and RF, making it competent from conception to production. The company is ISO 9001 certified and has three international distribution hubs in Asia, Europe, and North America. It sells products from several brands, including Advanced Thermal Solutions, Empower RF Systems Inc., and Carlisle Interconnect Technologies.
Tayda Electronics, founded in 2009 and headquartered in Bangkok, Thailand, is a retail supplier of electronic components and parts. The company offers thousands of products, including capacitors, breakout boards, and electronics project kits. Its products are used by electronics professionals and hobbyists alike, as well as by students of electronics. It offers economical prices, inexpensive global shipping, and markets primarily to electronics hobbyists. It has warehousing and shipping facilities located in Bangkok and Durango, Colorado, United States.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Sensitron Semiconductor |
26.5%
|
| 2 | Renesas Electronics Corporation. |
20.6%
|
| 3 | Microsemi Corporation |
14.7%
|
| 4 | Toshiba Electronic Devices & Storage |
8.8%
|
| 5 | Tayda Electronics |
5.9%
|
| 6 | Thermcraft, Inc. |
5.9%
|
| 7 | Rochester Electronics |
5.9%
|
| 8 | Nexperia B.V. |
5.9%
|
| 9 | ROHM Co., Ltd. |
2.9%
|
| 10 | Diodes Incorporated |
2.9%
|
Derivation Method
The ranking is calculated based on the click share within the transistor array page as of December 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 (%) |
|---|---|---|
|
United States of America
|
8 | 61.5% |
|
Japan
|
4 | 30.8% |
|
Netherlands
|
1 | 7.7% |
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33 products
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