P4KE20C-B Circuit Protection

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TVS (Transient Voltage Suppressors) diodes are available in a variety of different packages to protect against electrical transients in power and signal lines. The P4KE20C-B is a unidirectional TVS device that\'s used to protect sensitive electronic components from voltage transients in electronic circuits, such as those generated by lightning, electrostatic discharge, and cable faults. It is an excellent choice for protection against damage from high energy transients.

The P4KE20C-B has a maximum voltage rating of 20V, a peak pulse power rating of 2.5kW, and a reverse stand-off voltage of 15V. It features an extended lead frame design with a high surge current capability and low leakage current. It is UL recognized, allowing for fast and easy integration into most designs. The P4KE20C-B also features a high energy rating and capacitance, making it suitable for a wide variety of applications.

The P4KE20C-B is a RoHS compliant device and is compatible with automated assembly processes. It is available in a variety of package options, such as a DO-214AB, which is a SOD-323F package with a low profile (1.35mm), and a SOT-23-5 package. The device is also available in a higher power rating version, the P6KE30C-B, which has a reverse stand-off voltage of 30V and a peak pulse power rating of 6kW.

The P4KE20C-B is typically used in applications such as DC/DC converters, automotive circuits, telecom circuits, computers, consumer electronics, and power supplies. It is also suitable for protection against overvoltage transients in consumer electronics, computers, telecom and automotive applications. It provides excellent protection against high energy transients caused by lightning, and also helps protect against destruction caused by electrostatic discharge (ESD). The device also has a low clamping voltage and low leakage current.

The P4KE20C-B\'s working principle is based on the avalanche breakdown effect that occurs when the device is exposed to a voltage greater than its avalanche voltage. When a high-energy pulse is applied to the device, the breakdown voltage of the P4KE20C-B is exceeded, and it quickly diverts the surge current away from the protected circuit. The device then clamps the transient voltage to a level below the breakdown voltage, and it is also capable of dissipating the energy of the transient pulse. This helps protect the protected circuit from transient voltages.

In summary, the P4KE20C-B is an excellent choice of TVS device for protecting against high energy transients in a variety of applications. It has a high surge current capability, low leakage current, and a low clamping voltage. It offers RoHS compliance and is available in a wide range of package options. It is also capable of providing excellent protection against high energy transients such as those caused by lightning, by quickly diverting the surge current away from the protected circuit and clamping the transient voltage to a level below the breakdown voltage.

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