MXLPLAD30KP45AE3

TVS - Diodes

TVS (Transient Voltage Suppressor) diodes are an important part of electrical and electronic equipment protection, providing quick and reliable protection against over-voltage transients. The MXLPLAD30KP45AE3 is a state of the art TVS diode developed by Murata Electronics for use in applications where high levels of transient voltage exposure is a concern.

Application Field

The MXLPLAD30KP45AE3 is a surface-mountable TVS diode, serving as an ideal solution for over-voltage transient protection in automotive, industrial, and consumer applications. It\'s designed to provide protection in high-voltage and high-reliability environments, such as those utilized in medical equipment, military/aerospace applications, and telecommunications infrastructure. It is also suitable for power line protection, containing an internal protection diode designed to clamp transient voltage spikes greater than five times the clamp voltage.

Working Principle

The core of the diode is a Zener diode, which is designed so that as more voltage is applied, the current through the diode increases rapidly. This rapid increase in current, known as the Zener Breakdown, acts as a protection mechanism against over-voltage transients. The circuit also contains an additional diode to provide protection from over-discharge, should the input voltage fall below the static breakdown voltage of the Zener diode. This over-discharge protection is triggered when the voltage falls below the breakdown voltage of the diode, activating the internal protection circuit and diverting current away from the system.

When the circuit is exposed to a transient surge, the Zener diode provides protection by either creating a stable “dump” point, or by clamping the voltage to a safe level. The clamp voltage of the diode is typically higher than the breakdown voltage of the Zener diode, but is always significantly lower than the damaging peak voltages that can occur during overvoltage transients. This helps to ensure that the system remains unaffected by the overvoltage.

The MXLPLAD30KP45AE3 is capable of providing very high levels of protection against a wide range of transients, including both AC and DC transients. It is designed to dissipate up to 24 kW of power, while also providing a very long-term reliability and low temperature-dependence.

Conclusion

The MXLPLAD30KP45AE3 is an excellent choice for overvoltage protection in automotive, industrial, and consumer applications. It is designed to provide robust protection against both AC and DC transients, while also providing a high level of reliability and long-term stability. It is a highly recommended component for any application requiring high-level transient voltage protection.