LCE17A

Voltage - Clamping (Max) @ Ipp:	27.6V
Supplier Device Package:	DO-201
Package / Case:	DO-201AA, DO-27, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Current - Peak Pulse (10/1000µs):	54A
Series:	LCE
Voltage - Breakdown (Min):	18.9V
Voltage - Reverse Standoff (Typ):	17V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction to LCE17A

The LCE17A diode is a type of TVS (transient voltage suppressor or transient voltage suppressor diode) designed primarily to protect sensitive components from over-voltage transients on communication lines. The LCE17A is a unidirectional diode, meaning that it lets current flow in one direction while blocking it in the other direction.

Applications of LCE17A

The LCE17A is typically used in applications that require transient over-voltage protection, often in data communications systems. It is suitable for use in high speed logic circuits such as USB 3.0 and above, Ethernet, CANbus, and RS232. It can also be used in general purpose power circuits, as well as line protection for digital displays and touchscreens.Other applications include protecting microprocessors, providing surge protection for AC and DC power systems, and providing protection for automotive electronic systems. The LCE17A is also used in avionic systems and medical equipment, such as patient monitors.

Working Principle of LCE17A

The LCE17A works by utilizing a silicon PN junction. This junction is designed to detect over-voltage transients, and if the voltage exceeds a certain level, it will turn on the PN junction, discharging the voltage and protecting the component.The PN junction works by utilizing a reverse breakdown voltage threshold. When the voltage across the diode reaches the threshold, current will start to flow, allowing the voltage to be discharged. The rate at which the current can flow is controlled by the output capacitance of the diode.

Conclusion

The LCE17A is a type of TVS diode designed to protect sensitive components from over-voltage transients on communication lines. It has wide range of applications, from general purpose power circuits to avionic systems and medical equipment. It works by utilizing a reverse breakdown voltage threshold, allowing current to flow and discharge the voltage when it reaches that threshold.

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