P4KE51CAHR0G Circuit Protection

Moisture Sensitivity Level (MSL):	--
Type:	Zener
Bidirectional Channels:	1
Voltage - Reverse Standoff (Typ):	43.6V
Voltage - Breakdown (Min):	48.5V
Voltage - Clamping (Max) @ Ipp:	70.1V
Current - Peak Pulse (10/1000µs):	6A
Power - Peak Pulse:	400W
Power Line Protection:	No
Applications:	Automotive
Capacitance @ Frequency:	--
Operating Temperature:	-55°C ~ 175°C (TJ)
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-204AL (DO-41)
Series:	Automotive, AEC-Q101, P4KE
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active

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TVS - DiodesTVS (transient voltage suppression) diodes are used to provide electrostatic discharge protection or reduce voltage transients. A TVS diode works by supplying a large amount of charge into the circuit when a surge or spike in voltage occurs. The charge, sourced from the diode, then neutralizes the excess voltage by drawing it away from the affected circuit.TVS diodes are typically unidirectional, meaning they only conduct current in one direction, from the anode to the cathode. As the name suggests, the anode is the positive connection and the cathode is the negative connection. They can also be bidirectional, meaning they conduct current in either direction.The most common type of TVS diode is the P4KE51CAHR0G, which is a unidirectional device. It is specified to provide transient voltage suppression of maximum surge current up to 3.5kA at 8/20μs, meaning it can take a surge of 3.5kA current in 8/20 microseconds. This diode’s peak voltage clamping capability is typically 27V. This diode is ideal for use in automotive electrical systems, such as those found in cars and motorcycles, as well as consumer electronics and industrial applications.The P4KE51CAHR0G is designed to have a low on-state voltage drop and a low leakage current. It is also designed to have a low capacitance, making it less prone to impedance matching errors. The device also features a fast response time and a high reliability, making it ideal for use in areas with high heat or vibration.The P4KE51CAHR0G works by clamping the voltage during a surge. This is done by connecting anode and cathode electrodes to the TVS diode’s internal silicon substrate. When the device senses a voltage surge, it will conduct the excess voltage to the electrodes, creating a path for the surplus current to safely disperse. When the clamped voltage reaches a certain level, the diode automatically turns off and the voltage returns to normal.In summary, the P4KE51CAHR0G is a unidirectional transient voltage suppression diode designed for use in automotive and consumer electronics electrical systems. It is capable of producing up to 3.5kA current in 8/20μs and has a maximum peak voltage clamping capability of 27V. The device has excellent response time and reliability, making it ideal for any application where voltage suppression is required.

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