P4KE220AHE3/73 Circuit Protection

Current - Peak Pulse (10/1000µs):	1.2A
Base Part Number:	P4KE
Supplier Device Package:	DO-204AL (DO-41)
Package / Case:	DO-204AL, DO-41, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	400W
Series:	Automotive, AEC-Q101, TransZorb®
Voltage - Clamping (Max) @ Ipp:	328V
Voltage - Breakdown (Min):	209V
Voltage - Reverse Standoff (Typ):	185V
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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The P4KE220AHE3/73 is part of the P4KE series of transient voltage suppression (TVS) diodes from Littelfuse. It is designed specifically to protect electronic circuits from high-voltage transients and surges, and is a popular choice for use in automotive applications.

Features

• Simple 2 striking-pin design for more flexible mounting
• Low typical capacitance and fast response time
• Thermal cut off protection
• Low leakage current
• AEC-Q101 qualified

Application fields

The P4KE220AHE3/73 is suitable for many different types of automotive applications. It can be used in automotive ECUs, engine control circuits, transmission control circuits, and anti-lock braking systems, all of which require protection from transient voltage surges. It can also be used in automotive audio systems, fuel injection systems, drivetrain controllers, and a variety of other automotive applications.

Working principle

TVS diodes such as the P4KE220AHE3/73 work by clamping the voltage to a safely low level when a transient voltage surge occurs. When a peak in voltage exceeds a certain predetermined threshold, the TVS diode reacts quickly to clamp the voltage to a lower level thus protecting the sensitive electronic circuits from damage. The P4KE220AHE3/73 features low typical capacitance and fast response time, while also providing robust protection to automotive electronics. The thermal cut off protection and low leakage current ensures that the P4KE220AHE3/73 can perform in harsh environments.

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