VB20100CHM3/I

The VB20100CHM3/I is a fast-recovery diode array designed to protect and isolate sensitive loads. It is part of a larger family of products called Diodes - Rectifiers – Arrays, which can be used for a variety of applications, from general signal and data transmission to more specific applications, such as TV and radio transmitters, power supplies and voltage regulation. This article will discuss the application field and working principle of the VB20100CHM3/I diode array.

Application Field

The VB20100CHM3/I is a 4-channel array specially designed for ESD protection, providing overvoltage protection up to ±15 kV ESD contacts and ±30 kV ESD air discharges. It is suitable for EMI protection in automotive, telecom, and home appliance applications, as well as devices such as remote control systems. The device provides protection to sensitive loads against voltages up to ±45 V by clamping the input signal to a safe level.

The VB20100CHM3/I is designed with an integrated Zener diode to provide minimum capacitance and low leakage current. It is also a highly efficient device, with a minimum forward voltage drop of 1.1 V and lightning protection up to 30 A. Additionally, the device has an integrated temperature protection mechanism which limits the output voltage in the event of over temperature.

Working Principle

The VB20100CHM3/I diode array contains four channels, each consisting of a reverse-connected diode, a Zener diode, and a MOSFET to ensure no false triggering occurs. The Zener diode is designed to regulate the voltage during peak transients, while the MOSFET is used to quickly shut off the reverse current. The reverse-connected diodes provide protection to the device from surges of current in each of the four channels.

The VB20100CHM3/I is able to protect sensitive components from power surges by detecting the voltage and limiting it before the threshold is crossed. The device monitors the input voltage and when it exceeds the safe level, the Zener diode turns on, allowing current to flow to the MOSFET, which in turn causes current to flow through the reverse-connected diodes. This action clamps the voltage to a safe level in order to protect the sensitive loads from overvoltage.

The VB20100CHM3/I is an advanced device which provides efficient and reliable protection to a variety of sensitive components. Its integrated temperature protection mechanism ensures that the device is safe to use in environments with high temperatures. Its Zener diode and MOSFET components ensure that the device is able to provide effective overvoltage protection while minimizing power loss. Finally, its small package size makes it suitable for a variety of applications.