22 Fixed Resistor Manufacturers in 2023
This section provides an overview for fixed resistors as well as their applications and principles. Also, please take a look at the list of 22 fixed resistor manufacturers and their company rankings.
Table of Contents
What Is a Fixed Resistor?
A resistor is an essential electronic component that keeps electricity from flowing. Its primary function is to regulate the amount of current flowing in a circuit, divide voltage, and set time constants required for circuit operation. A time constant is, for example, the time it takes to start a particular operation or turn a switch on and off after a certain period.
Furthermore, as a side effect, heat is generated when current passes through resistance in a circuit. This is called Joule heat, which is generated when moving electrons collide with molecules of the resistance as they pass through the resistance. The kinetic energy of the collisions becomes heat and dissipates.
Resistors are indispensable components in circuits because of the role they play in circuits.
Uses of Fixed Resistors
In addition to fixed resistors, there are variable resistors.
As the name suggests, fixed resistors have a fixed resistance value. On the other hand, a variable resistor is a resistor whose resistance value can be freely changed. The volume control volume of audio equipment is made with a variable resistor.
If no resistors were in the circuit and all components were directly connected, the unlimited current would flow in the circuit. As a result, circuit components would burn out due to the flowing current. In avoiding such a situation, resistors are used because they are meant to regulate the appropriate current in a circuit.
Principle of Fixed Resistors
The magnitude of resistance is expressed as ohms (Ω). This resistance is defined as 1 ohm when the current flowing when a voltage of 1 V is applied is 1 A.
Materials are classified into conductors, semiconductors, and insulators. A conductor is a material that conducts current well, such as iron, which has a very low resistance component; an insulator is a material that conducts almost no current, such as plastic; and a semiconductor is a material that is intermediate between these three. Resistors are materials that have relatively high resistance among conductors.
Carbon film resistors made of ceramic coated with carbon and metal film resistors made of ceramic coated with metal are commonly used resistors.
Fixed resistors have a fixed resistance value. In circuit design, resistors with various resistance values are used. Therefore, resistors with many resistance values are required. However, for economic productivity, it is necessary to consolidate them into a few types.
Therefore, JIS and ISO set a numerical value to consolidate and standardize resistance values. The E6 series consists of 1.0, 1.5, 2.2, 3.3, 4.7, and 6.8. In other words, there are components with resistance values of 1.0Ω, 1.5Ω, 2.2Ω, 3.3Ω, 4.7Ω, 6.8Ω, 10Ω, 15Ω, 22Ω, 33Ω, 47Ω, 68Ω... and so on. In addition, there are more detailed classifications, such as the E12 series, E24 series, etc.
Types of Fixed Resistors
Fixed resistors can be roughly classified by shape and material.
The first three types are leaded, surface-mounted (chip), and others.
- The leaded type is a lead wire (metal wire) resistor. This type is often used in experiments and is familiar.
- Surface-mount type resistors are directly mounted on the board surface. Currently, this type of resistor is used in the base of electronic devices, nearly 90% of which are in the form of a small rectangular plate.
Next, resistors can be divided by material into four types: carbon, metal, metal-glaze, and other.
- Carbon-based resistors can be further classified into carbon film resistors (carbon resistors) and solid resistors.
- Carbon film resistors are the most commonly used low-power resistors because they are inexpensive and can be used in various applications. In most cases, the term "small resistor" refers to carbon film resistors. Note that they have a margin of error of ±5% and are unsuitable for precision applications.
- Metal-based resistors are further divided into metal film resistors and metal oxide film resistors. Metal film resistors are sometimes abbreviated as "Kimpi," and metal oxide film resistors are sometimes abbreviated as "Sankin.
- Metal film resistors use metal materials such as nickel-chromium alloys for the film portion. Metal film resistors are characterized by higher resistance accuracy and better temperature characteristics than carbon film resistors. However, the price is higher.
- Similarly, metal oxide film resistors use metal oxide, such as tin oxide, for the film part.
- They are used for medium-power applications because of their high heat resistance.
- The metal glaze is made by mixing metal oxide, metal, and glass and sintering it at high temperatures on an alumina substrate. It is highly resistant to corrosion and has outstanding stability with almost no degradation over time.
Color Code of Resistors
Lead-type resistors are generally marked with four or five colors to indicate the resistance value and tolerance. The colors correspond to numbers, for example, 1 for brown, 2 for red, 3 for orange, and so on.
This color code is defined by JIS C 5062.
The readings are divided into 4-color lines and 5-color lines. Note that in both cases, the one with the line one-sided is the first line.
For 4-color lines, the first number, second number, multiplier, and tolerance are in order from the first to the fourth line.
For example, if it were red-black-red-gold, according to the color code, red would represent 2, black would represent 0, and gold would represent ±5% error. Therefore, 2000Ω ±5% (=2kΩ ±5%) is the answer.
In the case of 5-color lines, the first number, second number, third number, multiplier, and tolerance are in order from the first to the fifth.
Here is an example of the 4-color line. Suppose the color of the line reads brown-green-black-black-brown. According to the color code, brown is 1, green is 5, black is 0, and brown (on the line representing the tolerance) represents an error of ±1%. Thus, 150Ω ±1% is the answer.
List of 22 Fixed Resistor Manufacturers
*Including some distributors, etc.
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Win Source Electronic Technology Ltd.
Fixed Resistors
Company Overview
WIN SOURCE is a customer-focused online store serving a wide variety of markets industries ranging from consumer to automotive to medical, industrial, and aerospace. WS specializes on size and speed, offering a catalog of over 1 million SKUS that can be shipped within 24 hours around the world. Offerings include an extensive array of semiconductor components, audio products, cable assemblies, racks, and battery products. WIN SOURCE is AS9120B, ISO9001, ISO14001, and ISO45001 certified and is a member of the anti-counterfeiting organization, ERAI.
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NetSource Technology, Inc.
Fixed Resistors
Company Overview
Founded in San Clemente, California in 1997, NetSource Technology, Inc. is an independent stocking distributor of electronic components and global procurement services, providing comprehensive supply chain solutions to OEMs and contract manufacturers worldwide. NetSource Technology serves the aerospace, automotive, IoT, medical, mobile device, and telecommunications industries and related companies. NetSource Technology specializes in locating hard-to-find, obsolete, end-of-life and highly allocated components with long lead times, supporting customers throughout the complete supply chain lifecycle.
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Hello Bom
Fixed Resistors
Company Overview
Hello BOM is an online electronic component storefront designed to bridge customers and suppliers. Customers supply Hello BOM with their bill of materials (BOM) and Hello BOM uses smart analysis via AI data matching to quickly find precise matches that customers need. This is accomplished via Hello BOM’s growing component stock and product information database to grow increasingly accurate and fast, while also simplifying the process of R&D and purchasing for customers. Products include semiconductors, resistors, capacitors, diodes, inductors, connectors, transistors, and sensors.
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Bourns, Inc
Fixed Resistors
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Viking Tech Corporation
Fixed Resistors
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ADI American Distributors LLC
Fixed Resistors
Company Overview
American Distributors LLC (ADI) was founded in 1983 and has corporate offices in Randolph, New Jersey. ADI manufactures and distributes products for medical diagnostics, industrial usage, maritime usage, aerospace, and military. ADI is ISO 9001:2015 certified. ADI’s product line includes capacitors, chip resistors, coils, chocks, connectors, crystals, diodes, fans, filters, fuses, hardware & accessories, heat shrinkable tubing, inductors, integrated circuits, lamps & lighting development, networks equipment, Parylene coating, relays, resistors, semiconductors, IC sockets & terminals, switches, transistors, and wire & cable.
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Zealway Electronics Company
Fixed Resistors
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PUI - Projections Unlimited, Inc.
Fixed Resistors
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Fixed Resistor Manufacturer Ranking
*Including some distributors, etc.Number of Employees
- Teikoku Tsushin Kogyo Co., Ltd.: 1,605
Newly Established Company
- KLS Electronic: 2002 (21 years ago)
- SHENZHEN JINGDACHENG ELECTRONICS CO., LTD.: 1996 (27 years ago)
- Synton-Tech Corporation: 1988 (35 years ago)
Company with a History
- Marsh Electronics, Inc.: 1937 (86 years ago)
- Teikoku Tsushin Kogyo Co., Ltd.: 1944 (79 years ago)
- Vishay Intertechnology: 1962 (61 years ago)
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