MXL5KP8.5CA Circuit Protection

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TVS - Diodes

TVS - diode, also known as an unidirectional diode, is an integrated component that acts as protection device from transient voltage overstress events. In order to protect users\' electronic system from high voltage, TVS - diode are designed to breakdown in case of a surge or over-voltage event either caused by ESD or induced through wiring. The MXL5KP8.5CA is one such type of unidirectional diode, which is designed to protect higher valued components in power electronic systems.

Application Field:

MXL5KP8.5CA, with its 8.5mm tolerance in maximum operating peak voltage, is specially designed and suitable for use in switching mode power (SMPS) supplies, computers, telecom, industrial electronics applications, and also provides electrostatic discharge protection in automotive application.

MXL5KP8.5CA is also used in direct current/ alternating current multi-voltage applications that require transient voltage protection in multiple input ports such as smart meters, printed wiring boards, solar charging systems, and electric/hybrid vehicles too.

Working Principle:

The MXL5KP8.5CA consists of a pair of connections, namely Anode (the positive terminal) and Cathode (the negative terminal). A simple form is a semiconductor diode in series with a Zener diode, presenting a low impedance path during transient voltages.

The transient voltage stress causes excessive current to pass through the device during a highly localized event. During operation, the equipment is protected from damaging high voltage by clamping the transient voltages to the TVS - diode’s breakdown voltage. This action is accomplished by an avalanche breakdown process within the device itself.

The internal structure of the MXL5KP8.5CA is a combination of two junctions of Silicon zener diode slice forming a single monolithic integrated circuit slice. This arrangement allows the device to break down at a breakdown voltage of 8.5V once the peak voltage exceeds that limit.

Apart from the peak voltage tolerance, other factors are also considered when selecting a TVS - diode such as breakdown voltage, power, voltage variation and operating temperature. MXL5KP8.5CA are capable of handling up to 2A surge current and have a reverse leakage current of less than 0.1uA.

Conclusion:

To sum up, MXL5KP8.5CA is a type of unidirectional diode with peak voltage tolerance of 8.5V, making it an ideal device for use in a wide variety of power electronic systems. It is primarily used to protect sensitive components in the system from transient voltage overstress events. Its avalanche breakdown voltage of 8.5V makes it an excellent choice for use in SMPS, computers, telecom, industrial electronics applications and automotive electronics.

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