P6KE30A

Current - Peak Pulse (10/1000µs):	75A (8/20µs)
Base Part Number:	P6KE
Supplier Device Package:	DO-15
Package / Case:	DO-204AC, DO-15, Axial
Mounting Type:	Through Hole
Operating Temperature:	--
Capacitance @ Frequency:	1075pF @ 1MHz
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	600W
Series:	P6KE, TRANSIL™
Voltage - Clamping (Max) @ Ipp:	53.5V
Voltage - Breakdown (Min):	28.5V
Voltage - Reverse Standoff (Typ):	26V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Introduction

TVS (Transient Voltage Suppressors) diodes are used as protective devices in electrical and electronic circuits for protection against surge, overload, and short circuit. In this article, we will discuss the application field and working principle of a type of TVS diode, the P6KE30A.

P6KE30A Overview

Manufactured by Littelfuse, P6KE30A is a unidirectional transient voltage suppressor (TVS) diode. It comes in an axial-lead package and is capable of handling up to 30A of reverse energy in 8/20μs surges. Its Breakdown Voltage (BV) is 28-32V and its Clamping Voltage (VC) is about 43V with a 5A test pulse. The P6KE30A is available in a variety of lead-lengths ranging from 4.0mm to 17.5mm ensuring compatibility with all designs. It is designed to protect voltage sensitive components from high voltage transients induced by lightning, inductive load switching, etc.

Application Fields

P6KE30A is suitable for a wide range of commercial and consumer electronics, especially those that work on high voltage surge protection. It is ideal for applications such as LCD displays, electronic games, and set-top boxes. It can also be used in automotive applications, such as automotive computer systems, ECU systems, and power systems. The P6KE30A is especially useful in high voltage applications, thanks to its high surge rating of up to 30A.

Working Principle

When an overvoltage transient is applied to a circuit, the voltage rises beyond the breakdown voltage of the P6KE30A diode (in this case, 28-32V). This causes a large current to flow through the TVS diode, which acts as a short circuit. This short-circuiting of the diode absorbs the energy consumed by the overvoltage transient, dissipating it to the surrounding environment. This action effectively protects the components in the circuit from damages caused by the overvoltage transient.

Conclusion

The Littelfuse P6KE30A transient voltage suppressor (TVS) diode is ideal for protection against high voltage transients induced by lightning or inrush currents. It is suitable for use in a wide range of electronic and consumer electronics, including LCD displays, set-top boxes, computers, and automobiles. Its high surge rating and fast response make it a suitable choice for high voltage applications.

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