TVS - Diodes

A TVS, or transient voltage suppressor diode, is a device designed specifically to protect electrical equipment from over-voltage damage due to transient voltage spikes. The device works by diverting the surge of voltage away from the delicate electrical circuits and dissipating it into the atmosphere- a process known as ‘clamping’. TVS diodes are used in a wide variety of applications including consumer electronics, industrial electronics, telecommunications, power control systems, and military applications.

5KASMC43AHM3/57 Application Field and Working Principle

The 5KASMC43AHM3/57 TVS diode from STMicroelectronics is a high-performance bi-directional diode designed for low voltage circuit protection. The device is offered in an SC-43 surface mount package. The operating voltage range of the device is 2.5 V to 5.6 V and it has a maximum operating current of 11mA. The 5KASMC43AHM3/57 diode has a peak pulse power rating of 500 watts.

The 5KASMC43AHM3/57 TVS diode works by clamping the voltage across the diode junction to the breakdown voltage of the device. The device has a fast clamping response time of several nanoseconds, which is faster than the rise time of most transients. The device is capable of dissipating large amounts of power due to its low internal resistance and large junction area- reducing the effect the transient has on the circuit.

The 5KASMC43AHM3/57 diode is typically used for the overvoltage protection of circuits in digital and opto-electronic consumer electronics, medical equipment, automotive, industrial, and telecom applications. Due to its very low operating voltage of 2.5 V, the device can also be used in low voltage applications such as microcontrollers and signal line protection.

The 5KASMC43AHM3/57 is a simple, reliable, and economical solution for protecting against transient voltage spikes. The device is easy to integrate into existing designs and features a wide operating temperature range, making it suitable for use in many different types of environments.