P4KE120CAHR0G Circuit Protection

Voltage - Clamping (Max) @ Ipp:	165V
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
Current - Peak Pulse (10/1000µs):	2.5A
Series:	Automotive, AEC-Q101, P4KE
Voltage - Breakdown (Min):	114V
Voltage - Reverse Standoff (Typ):	102V
Bidirectional 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, also known as Transient Voltage Suppression Diodes, act as a type of electronic device for electrical circuit protection against transient overvoltage, ESD and other low energy transients. They are widely used in a variety of applications, including power system design, medical electronics, automotive industry, computer and telecommunications networks. The P4KE120CAHR0G is a type of TVS diode that is commonly used in electronics circuit protection applications. The P4KE120CAHR0G TVS diode is a two terminal semiconductor device and has a unidirectional or bi-directional protective function. It is designed to provide protection from transients of several hundreds of volts, while providing very low dynamic resistance. The P4KE120CAHR0G contains a boost zener construction which provides fast clamping action and efficient suppression of voltage. It is capable of absorbing high transient power without damage to the device, and its thermal resistance provides low junction temperatures, even at higher transient currents.The main application of the P4KE120CAHR0G TVS diode is power system design, including DC/DC converters, AC/DC converters, power supplies, power converters and motor drives. It can be used as a protective device in cable, routers and data centers in telecommunications networks. The diode is suitable for use in medical electronics applications, such as EKG (electrocardiogram) and pulse monitors. It can also be used in cars, trucks, motorcycles and boats to help prevent high voltage surges in the electrical system.The P4KE120CAHR0G has a breakdown voltage of 12V and a maximum current rating of 20A. Its clamping voltage is 15V, and the maximum surge current is 40A at 10Ω. The diode is designed to provide a low dynamic resistance, allowing it to dissipate higher power transients. The diode\'s low capacitance ensures that signal integrity is maintained with minimal crosstalk and jitter in the circuit. The diode also has a fast response time, making it suitable for high speed signal circuitry.The working principle of the P4KE120CAHR0G is that when an overvoltage transient is applied to the diode\'s terminals, the device will attempt to clamp the voltage at 15 V to protect the circuit. This works because the diode has a very low impedance when in forward-biased direction. When a surge or spike is applied, a large peak current will quickly flow through the diode, and the excess voltage will be dissipated in the diode. The device is able to suppress the peak current generally within nanoseconds, thus protecting the circuit from destruction.In conclusion, the P4KE120CAHR0G is a popular type of TVS diode designed for Power System Design, Telecommunications Networks, Medical Electronics and Automotive use. It has a low dynamic resistance, low capacitance, fast response time and low thermal resistance, allowing it to effectively protect circuits from voltage transients.

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