SMC3K54CAHM3/57

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TVS (Transient Voltage Suppressor) devices, also known as Varistor Diodes, are solid state devices used to protect systems from electrical transients. The SMC3K54CAHM3/57 is a Pducon TVS diode from Littelfuse, designed to protect against electrostatic events and differential mode surge.

This TVS diode is designed for use in high speed data transmission lines, and is capable of handling up to 3 KW peak power dissipation for short 10/1000 μs bursts of energy. The device has a wide operating voltage of 5-400 volts, and a 5-400V clamping voltage. The SMC3K54CAHM3/57 also has a low clamping voltage capability, which is important in preventing the device from malfunctioning during normal operating conditions.

The TVS diode is available in a surface mounted SOT-23 package, which is ideal for a wide range of applications. Some of the typical application fields are: Data and communications lines, EMC filtering, TVSS protection, AC power lines, and DC to DC converters. The device is also suitable for automotive, telecom, lighting, and power supply applications.

The working principle of the SMC3K54CAHM3/57 TVS diode is based on the avalanche breakdown effect. When the voltage applied to the device exceeds its breakdown voltage, the device “avalanches”, causing it to dissipate large amount of energy. This energy dissipation is what protects the circuit from ESD and overvoltage transients. The avalanche breakdown effect is accompanied by a low clamping voltage, which is beneficial in that it does not interfere with the normal operation of the circuit.

The SMC3K54CAHM3/57 TVS diode from Littelfuse offers excellent performance and reliability in high speed data transmission lines, and is ideal for applications where protection against ESD and differential mode surge is required. The device has a high peak power dissipation rating, a low clamping voltage, and a wide operating voltage range. It is available in a surface mounted SOT-23 package, which makes it suitable for a wide range of applications including automotive, telecom, lighting, and power supply.

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