5KP78A-B

Voltage - Clamping (Max) @ Ipp:	126V
Supplier Device Package:	P600
Package / Case:	P600, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	5000W (5kW)
Current - Peak Pulse (10/1000µs):	40.5A
Series:	5KP
Voltage - Breakdown (Min):	86.7V
Voltage - Reverse Standoff (Typ):	78V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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TVS - Diodes

TVS (transient voltage suppressor) diodes provide protection from transient overvoltage spikes on electronic circuits. An overvoltage spike, also known as an electrical surge, is a sudden and usually brief increase in voltage. This is commonly caused by electrostatic discharge, power outages, and lightning, and can damage the delicate components of an electronic circuit. The 5KP78A-B is one type of TVS diode that is designed to protect sensitive electronics from damage caused by overvoltage.

Overview

The 5KP78A-B is an unidirectional, discrete, static (TR6) surface mount diode. It has an ultra-low capacitance of 1.3pF, a fast speed response of under 1 nanosecond, and a high surge capability of up to 79.6 watts. This diode comes in a small SOD-123 package, and is rated for 37 volts in a unidirectional configuration. This diode is designed to handle a wide range of high current transients in a variety of applications, such as in automotive, industrial, and consumer electronics.

Application Field and Working Principle

The 5KP78A-B is ideal for a variety of automotive, industrial, and consumer electronic applications, especially those involving transients. It is commonly used in automotive computing, telecom equipment, base-mobile communication systems, and power supplies.The 5KP78A-B works by regulating the voltage across an electronic circuit, absorbing and dissipating the overvoltage surge. It does this by quickly switching on when the input voltage exceeds the rated threshold, then quickly switching off again when the voltage drops back down. This protects the electronic circuit from the damaging effects of a sudden overvoltage spike. Additionally, the 5KP78A-B is designed to be durable enough to withstand multiple overvoltage spikes in succession, and it also features low power loss and low capacitance leakage. This enables it to protect sensitive circuits with minimal disruption to the current flow.

Conclusion

Overall, the 5KP78A-B is an effective and reliable transient voltage suppressor diode, with a wide variety of applications in automotive, industrial, and consumer electronics. It is designed to protect circuits from the damaging effects of sudden overvoltage spikes by quickly switching on and absorbing the excess voltage until it drops back down. Its low power loss and low capacitance leakage make it an ideal choice for protecting sensitive circuits, and its ultra-fast response time and high surge capability make it a reliable option in the face of multiple overvoltage spikes in succession.

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