P4KE7.5CA-B Circuit Protection

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TVS (transient voltage suppressor) diode, or popularly known as surge arresters, are protective semiconductor devices. Specifically, P4KE7.5CA-B used in application is a bivariate transient voltage suppressor diode. This is mainly used to protect sensitive electronic circuits from the damages caused by overvoltage transients. It is an unidirectional device that absorbs excessive transient energy and prevents any damage to the sensitive circuits over its operating voltage specified.

Technically speaking, the P4KE7.5CA-B consists of two thyristors connected in inverse parallel with each other. It is designed to work in the voltage range of 5.5V to 7V, with a breakdown voltage of 7V and a stand off voltage of 5.5V. This means, when a surge voltage from +7V to -7V is encountered, the two thyristors connected in anti-parallel helps “clamp” the potential along the lines in such critical conditions. When a surge of voltage propagates, it causes electrical stress on components and it can cause them to short circuit and damage the component permanently. It is here affectively P4KE7.5CA-B helps protect the device by conducting the surge in either direction.

In terms of performance, this bivariate transient voltage suppressor diode provides bi-directional overvoltage protection with low clamping voltage. It has a low leakage current and low capacitance. This ensures fast response and long life operation. It has a wide variety of applications in the consumer electronics industry. It is used to protect against power line spikes, radio frequency interference and electromagnetic interference, among other things.

The P4KE7.5CA-B is widely used in consumer electronics such as LCD televisions, digital cameras, audio systems, game consoles and portable electronics. It is mainly used to provide protection from surges, spikes, lightning and other transient events. It is also used in various industrial applications such as in motor control panels, robots and industrial controllers, among others. In addition, this type of diode is increasingly becoming popular in automotive applications, particularly for protecting in-car electronics, including power train and electronic stability control systems.

The P4KE7.5CA-B helps protect sensitive electronic components from the damages caused by overvoltage transients. It consists of two thyristors connected in inverse parallel. This helps “clamp” the potential along the lines when an over-voltage happens. It has a low leakage current and low capacitance, which ensures fast response and long life operation. In terms of applications, it is widely used in consumer electronics as well as automotive and industrial applications.

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