ERZ-E11B751CS

ERZ-E11B751CS is a TVS- Varistor, MOV which is used in a variety of applications ranging from voltage and current protection to high speed data line and telecom protection. This device is also known as a transient voltage suppression varistor or a voltage transient protection device because of its capacity to quickly and effectively protect circuits from any voltage transients. It consists of two distinct components, a metal oxide varistor (MOV) and two avalanche diodes connected in anti-parallel.

Application field

ERZ-E11B751CS is used in a wide variety of applications; from telecom and data protection to military, automotive, consumer electronics and industrial applications. Its ability to protect telecommunication lines from fast voltage transients, and its extremely low on-state leakage current, make it ideal for protecting DSL, fiber optic, and other high speed data lines. It is also used in automotive designs for various short circuit situations, such as EMC protection, over-voltage protection, lighting surge protection, EFI protection, load dump protection, ABS control system protection, starter control system protection, and more.

This device is also used in the industrial and consumer electronics world. It can be used to protect the power supply from overloads, short circuits, over current, over heating, and other voltage transient threats. It can also be used in the medical world to protect patient monitoring systems from any over voltage attack. Additionally, it can be used in non-critical scenarios, such as protecting audio and video devices from power surge.

Working Principle

The ERZ-E11B751CS acts as a voltage transient protection device by combining two different components, a metal oxide varistor (MOV) and two avalanche diodes connected in anti-parallel. When the voltage transient exceeds a certain threshold, the avalanche diodes will turn on first and then the MOV. Since the varistor has a much lower resistance than the avalanche diode, it will draw much more current, absorbing the majority of the transient. This in turn reduces the amount of energy that can reach the protected circuit, thus protecting the device from any voltage transients.

In addition to the voltage transient protection, the ERZ-E11B751CS also provides overload and excess current protection. When the current passing through the device exceeds a certain threshold, the MOV will become saturated and will begin to clamp the voltage across the device. This will cause the device to draw more current, thereby limiting the amount of current that the device can accept, and thus protecting the device from overload or excess current.

Conclusion

ERZ-E11B751CS is a device specifically designed for fast and effective voltage transient protection. It combines metal oxide varistor (MOV) and an avalanche diode connected in anti-parallel to provide overload protection and reduce the amount of energy that can reach the protected circuit. This device is used in a wide variety of applications, ranging from telecom and data line protection to industrial and consumer electronics designs. With its excellent performance and low operational current, it is an ideal choice for any application requiring reliable voltage protection.