P4KE18A Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TVS (transient voltage suppression) diodes are the most commonly used type of voltage protection device. They provide an economical solution for short-term surge protection, while also offering excellent protection against high voltage transients. The P4KE18A is a TVS diode manufactured by Bourns. This diode was designed for use in automotive and other applications where high voltage transients need to be safely contained.

The P4KE18A provides excellent protection from high voltage transients and short-term surges. It has a low reverse stand-off voltage of 6V and a high peak pulse current of up to 18A. This diode is also resistant to EMI (electromagnetic interference), making it ideal for automotive and other applications where interference can be an issue.

The P4KE18A is designed to be highly reliable and efficient when used in demanding automotive applications. It uses a Zener diode structure to provide the highest possible voltage protection. The diode also has an integral guardring that helps protect the device from short circuit currents, which can cause catastrophic failure in devices without the guardring.

The device contains a special thermographic layer which helps dissipate heat generated by its operation. In addition, the diode is designed with a latch-up immunity feature which prevents false triggering of the device due to high frequency, low-level signals.

The P4KE18A is designed to be used with an overvoltage protector (OVP) circuit. This circuit helps provide a safe level of voltage protection for the device. The OVP circuit works by sensing the presence of a high voltage transient and then quickly disconnecting the device from the power source, thereby preventing damage to the device.

The working principle of the P4KE18A TVS diode can be explained as follows: when a surge voltage is applied to the diode, it starts to conduct current in order to protect the device from the high voltage surge. The device is designed to have a low reverse stand-off voltage, which allows it to start conducting current at a relatively low voltage surge. As the voltage increases, the device\'s current increases accordingly, providing protection against high voltage transients. When the surge voltage decreases, the diode returns to its non-conducting state.

The P4KE18A is a highly effective device for providing voltage protection in automotive and other demanding applications. It offers superior protection against high voltage transients and short-term surges, as well as excellent EMI immunity. The device also has an integral guardring that helps protect against short circuit currents, and a thermographic layer to dissipate heat. It is an excellent choice for use in an overvoltage protector circuit.

The specific data is subject to PDF, and the above content is for reference