ERZ-V20D241

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Varistors, also known as voltage-dependent resistors (VDRs), are electronic components that are used to protect sensitive electronic equipment from transient Overvoltage. They come in many shapes and sizes, each suitable for particular application fields. The ERZ-V20D241 is one such varistor, a non-discriminatory type which provides a low DC leakage current and a high surge capability. It is mainly used in DC power supply, communications, and automotive applications.

The ERZ-V20D241 features a fast response time, making it suitable for applications affected by transient voltages that occur in short duration, such as those caused by lightning discharges or contact between two electrical wires. It has a excellent breakdown voltage temperature coefficient, which ensures that the varistor maintains its capability to protect against overvoltages even in extreme conditions. Its terminal construction is also designed specifically for AC or DC applications, with terminal contact lead-in made of a special alloy, providing short circuit protection even under continuous high temperature operations.

The working principle of the ERZ-V20D241 is quite simple. It consists of two semiconductor die, one connected to the power source and the other connected to the load. When a transient overvoltage is detected, the varistor starts to conduct current from the power source to the load, thereby allowing the voltage to remain within safe limits. The current conducted by the varistor is then dissipated as heat, so the varistor must be securely fixed to a heat sink to ensure safe operation.

Overall, the ERZ-V20D241 is an excellent choice for protecting sensitive electronics from transient overvoltages. It offers a combination of fast response time, high surge capability, and low DC leakage current, and is suited for a wide variety of applications in the fields of DC power supply, communications, and automotive engineering. Furthermore, its excellent breakdown voltage temperature coefficient ensures reliable protection in extreme conditions, and its specialized terminal construction ensures safety even under high temperature operations.

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