5KP78A-E3/54

5KP78A-E3/54 Application Field and Working Principle

The 5KP78A-E3/54 is a transient voltage suppressor (TVS) diode. It has been designed to protect sensitive components such as semiconductor chips from voltage surges, which can result in blackout and damage to the circuit. The 5KP78A-E3/54 is ideal for use in industrial, telecommunications, military and automotive applications due to its low stand-off voltage and high surge current capabilities.

Specifications

The 5KP78A-E3/54 has a maximum drain-source voltage of 1000 V, a reverse identity voltage of 1V, a peak pulse current of 10 A, a peak pulse power of 70 W, a storage temperature range of -55°C to +175°C, a junction temperature of +175°C, and a maximum stand-off voltage of 14 kV.

Application Field

The 5KP78A-E3/54 is primarily used in industrial, telecom, military and automotive applications. Its low stand-off voltage and high surge current capabilities makes it especially suitable for protection of sensitive electrical components, such as power supplies, in any of these environments. This device is also useful in designing automotive circuits for improved transient suppression, such as lighting, power window motors, and fuel pumps.

Working Principle

The 5KP78A-E3/54 is based on the principle of avalanche breakdown. When the reverse voltage across the device exceeds the rated reverse identity voltage, the device begins to break down and conducts a large amount of current in a very short time. This current is known as the peak surge current. The device can protect the circuit components from damage by absorbing the excess current.

The 5KP78A-E3/54 provides high levels of protection in the event of a surge, providing fast response, low power loss, and low leakage current. It also has a low clamping voltage, ensuring that the voltage across the protection device remains within a safe range.

Conclusion

The 5KP78A-E3/54 is a transient voltage suppressor (TVS) diode, designed to protect delicate circuit components from voltage surges. It is ideally suited for use in industrial, telecom, military and automotive applications due to its low stand-off voltage and high surge current capabilities. The 5KP78A-E3/54 provides protection by utilizing the principle of avalanche breakdown, allowing it to absorb the excess current caused by the surge.