5KP20HE3/54

Voltage - Clamping (Max) @ Ipp:	35.8V
Supplier Device Package:	P600
Package / Case:	P600, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	5000W (5kW)
Current - Peak Pulse (10/1000µs):	140A
Series:	Automotive, AEC-Q101, TransZorb®
Voltage - Breakdown (Min):	22.2V
Voltage - Reverse Standoff (Typ):	20V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction to TVS - Diodes

Transient voltage suppression (TVS) diodes are components designed to protect sensitive electronic circuits from high voltage or high-energy electrical spikes. In many applications, these devices are used to protect components from the damaging effects of electrostatic discharge. TVS diodes come in a variety of shapes and sizes and have various features and specifications depending on their intended application. In particular, the 5KP20HE3/54 is a popular TVS diode designed for the protection of electronic circuit against transients surges due to lightning, electrical noise, or other unexpected electrical surges. It is especially useful in industrial, automotive, and other environments with significant electrical noise.

5KP20HE3/54 Application Field and Working Principle

The 5KP20HE3/54 is a unidirectional TVS diode with a breakover voltage of 18 V. It is designed to protect against high-energy surges in the 8/20us or 10/1000ns waveforms. It can be used in applications ranging from automotive electronic systems to data communication cables and other industrial applications. It has a reverse leakage current of 13 µA at 18 V. This diode is designed for applications with higher reverse leakage and repetitive peak power requirements. The 5KP20HE3/54 relies on the process of avalanche breakdown to protect against high-energy spikes. When a TVS diode is exposed to a voltage higher than its breakdown voltage of 18 V, it enters an avalanche breakdown state. In an avalanche breakdown state, the diode’s p-type material is rapidly depleted leaving only the n-type material that carries current. The avalanche breakdown process then causes the breakdown voltage to increase, making the diode capable of absorbing and diverting the surge current away from the protected device.

Conclusion

The 5KP20HE3/54 is a useful and versatile TVS diode designed for the protection of electronic circuit against transients surges due to lightning, electrical noise, or other unexpected electrical surges. Its unique features make it a good option for applications that require higher reverse leakage and repetitive peak power requirements. Thanks to its avalanche breakdown process, it can divert surges away from the protected device to keep it safe and undamaged.

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