LCE26A-E3/73

Current - Peak Pulse (10/1000µs):	36A
Base Part Number:	LCE*
Supplier Device Package:	1.5KE
Package / Case:	DO-201AA, DO-27, Axial
Mounting Type:	Through Hole
Operating Temperature:	-65°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Series:	TransZorb®
Voltage - Clamping (Max) @ Ipp:	42.1V
Voltage - Breakdown (Min):	28.9V
Voltage - Reverse Standoff (Typ):	26V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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TVS - Diodes - LCE26A-E3/73 Application Field and Working Principle

A Transient Voltage Suppressor diode (TVS) is a semiconductor device designed to protect other components from voltage transients which can be caused by electrostatic discharge (ESD), inductive kickback, static electricity, and lightning strikes. In this article, we will take a look at the LCE26A-E3/73 diode and analyze its application field and working principle.

Application Field

The LCE26A-E3/73 is an unidirectional TVS Diode that belongs to the Littelfuse TLMR family. It is designed to provide reliable overvoltage protection in a variety of applications, and is particularly suitable for signals which are susceptible to inductive kickback. It has an operating temperature range of -55°C to 125°C and can handle input and output voltages up to 1.8kV. The typical clamping voltage is 2.5V and the maximum continuous operating power dissipation is 5.5W.The LCE26A-E3/73 is designed for use in a variety of applications including automotive, communications, consumer electronics, and industrial. It has a low profile and a low clamping voltage, making it an ideal choice for high-speed signals and fast transients.

Working Principle

The working principle of the LCE26A-E3/73 TVS diode is relatively simple. The diode acts as a reverse biased diode when exposed to a transient voltage pulse. When the voltage exceeds the diode’s reverse breakdown voltage, the diode conducts, allowing current to flow in the reverse direction. This conductive process dissipates the energy of the transient pulse and thereby reduces the impact on the elements connected downstream in the circuit.The LCE26A-E3/73 is designed to protect a circuit from overvoltage pulses of 100W Peak Pulse Power (PPP) per line, with a continuous operating power dissipation of 5.5W. The voltage range is 0-1.8kV and the typical clamping voltage is 2.5V.

Conclusion

The LCE26A-E3/73 TVS diode from Littelfuse is a reliable and cost-effective solution for overvoltage protection. It is suitable for a variety of applications, with a low profile and low clamping voltage making it an ideal choice for high-speed signals and fast transients. The diode is designed to protect a circuit from overvoltage pulses of up to 100W PPP per line, with a continuous operating power dissipation of 5.5W.

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