P4KE400A-TP Circuit Protection

Voltage - Clamping (Max) @ Ipp:	548V
Supplier Device Package:	DO-41
Package / Case:	DO-204AL, DO-41, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	400W
Current - Peak Pulse (10/1000µs):	750mA
Series:	--
Voltage - Breakdown (Min):	380V
Voltage - Reverse Standoff (Typ):	342V
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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TVS - Diodes: P4KE400A-TP Application Field and Working Principle

Transient voltage suppressor (TVS) diodes are special semiconductor devices used to protect electrical circuits and components from high voltage transients. The P4KE400A-TP is a TVS diode developed by Semtech Corporation to provide reliable protection against surges and power transients. Here we will discuss its applications and working principle.ApplicationThe P4KE400A-TP is a popular choice for surge protection applications because it offers high reliability and high surge capability up to 400Amps of peak pulse current and 100A of IEC rated surge ratings. It is designed to protect against ESD (electrostatic discharge) and other electrical surges. It is widely used in electronic products and systems such as communications equipment, data buses, USB ports, wireless systems, and industrial and commercial applications.Working PrincipleThe P4KE400A-TP is a unidirectional TVS diode and is a two-terminal device that consists of a p-n junction diode configured to respond to high voltages and currents by conducting current. When a voltage surge or transient exceeds the breakdown voltage of the diode, the diode will immediately start to conduct. The device is designed to clamp, or limit, the peak voltage to a safe voltage level that will not damage the connected devices or circuits.The device has a clamping voltage of 400V with 300W peak pulse power. It is constructed in a SMA package which provides superior thermal characteristics, allowing the device to dissipate large amounts of power quickly and efficiently.ConclusionIn conclusion, the P4KE400A-TP is a popular choice for surge protection applications due to its high energy capability and high reliability. It is designed to provide reliable protection against surges and power transients up to 400Amps of peak pulse current and 100A of IEC rated surge ratings. The device has a clamping voltage of 400V with 300W peak pulse power and is constructed in an SMA package that provides superior thermal characteristics.

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