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This section provides an overview for current limiting diodes as well as their applications and principles. Also, please take a look at the list of 2 current limiting diode manufacturers and their company rankings. Here are the top-ranked current limiting diode companies as of January, 2026: 1.GOOD-ARK SEMICONDUCTOR, 2.Diotec Semiconductor AG.
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A Current Limiting Diode is an electronic component that allows a constant current to flow when the voltage is within a specified range. They are sometimes called "CRDs" from the initial letters of the English name "Current Regulative Diode. There are many electronic devices, such as LEDs, that require a constant current during operation. CRDs are used in such electronic devices.
Current Limiting Diodes are generally used for relatively small currents such as 1 mA to 15 mA, but there are also constant-current diodes that can carry large currents such as 500 mA. However, care must be taken to avoid heat generation during operation and consequent damage to components.
Diodes are basic electronic components used in various electronic devices. Some electronic devices require a constant current to flow while being driven. For example, LEDs vary in luminance depending on the amount of current flowing through them, so the amount of current flowing through the circuit must be kept constant in order to stabilize the luminescence. Current Limiting Diodes are used in such current-driven electronic components and devices. Current Limiting Diodes are also used in battery charging/discharging circuits and leakage circuit breakers.
The current characteristics of Current Limiting Diodes are shown in the above figure: from 0 to a certain voltage, the current increases as the voltage increases. However, when the voltage enters a certain range, the current value becomes constant. The current value at this time is called "pinch-off current" and is one of the values that represent the characteristics of Current Limiting Diode.
The voltage at which 80% of the pinch-off current value is given is called the "shoulder voltage," and a voltage greater than the shoulder voltage must be applied to maintain a constant current. Note that, as shown in the above figure, even a Current Limiting Diode is not a constant current when a large voltage is applied, and the current increases with the increase in voltage again.
Note that applying a voltage so large that it exceeds the constant-current range will damage the diode, so care must be taken when actually using the diode with respect to the size of the voltage.
Current Limiting Diodes can operate from voltages as low as 1V to as high as 100V. A variety of low-current diodes are available, including those with different pinch-off current magnitudes and those with reduced pinch-off current value fluctuations. Generally, constant current values of 1 mA to 15 mA are available. On the other hand, Current Limiting Diodes for large currents are also sold, which can provide a constant current of 350 mA or 500 mA.
When using Current Limiting Diodes, care must be taken to avoid heat generation during operation. Heat is generated according to the product of voltage and current, and in some cases this can cause damage to the Current Limiting Diode. In addition, when multiple Current Limiting Diodes with different pinch-off current values are connected, the device may not operate as expected or may be damaged if the circuit is not properly configured.
There are many types of diodes. Here we will give an overview of typical diodes other than Current Limiting Diodes.
Other diodes include laser diodes and photodiodes.
*Including some distributors, etc.
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Good-Ark Semiconductor, a subsidiary of Suzhou Good-Ark Electronics, is a global semiconductor manufacturer founded in 1990 and located in Ronkonkoma, New York. The company is publicly listed on the Shenzhen Stock Exchange (stock code: 002079). It offers various surface mount, through-hole, and wafer devices, including diodes, rectifiers, TVS, Chip Fuse, Thermistor, and MOSFETS. To reach overseas customers, it provides global distribution networks and technical support. The company has been certified with ISO 9001, ISO/TS16949, ISO 14001, and OHSAS 18001.
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.
Ranking as of January 2026
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Diotec Semiconductor AG |
54.8%
|
| 2 | GOOD-ARK SEMICONDUCTOR |
45.2%
|
Derivation Method
The ranking is calculated based on the click share within the current limiting diode page as of January 2026. 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
|
1 | 50.0% |
|
Germany
|
1 | 50.0% |
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