20KPA132CA Circuit Protection

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TVS - Diodes have long played an important role in the electronics industry. The 20KPA132CA is an advanced TVS diode from Vishay that provides high reliability and low capacitance with enhanced surge performance.

The 20KPA132CA is a Transient Voltage Suppression diode with a peak pulse power rating of up to 132 Watts (20 Amp, 8/20 or 10/1000 microseconds waveform). It provides high-speed protection from voltage transients generated by lightning and other transient surge events, making it ideally suited for protecting electrical systems in a variety of applications.

The 20KPA132CA is a bi-directional device, meaning it can provide protection from transients on both lines of a two-line circuit. It is RoHS-compatible and features a wide range of capacitance values (5 - 12.5pF), making it suitable for a variety of applications with different loads. In addition, the device is rated to operate over a temperature range of -40 - +125°C.

The most common application field for the 20KPA132CA is in automotive systems, where its performance and reliability make it well-suited to help protect electrical systems from transient surges. It is often used in protection for power suppression circuits, DC/DC converters, and on-board computer systems. It is also suitable for other industrial applications, including motor drives, solenoids, and process control circuits.

The working principle of a TVS diode is based on avalanche breakdown. An avalanche diode consists of a junction p–n diode between two electrodes, where the p–n junction is reverse biased, meaning it is not subject to a current flow in the forward direction. When a certain voltage is applied to the diode, the electric field is strong enough to start an avalanche breakdown process, resulting in the diode rapidly switching from high resistance to a conductive state.

The 20KPA132CA is designed to divert transient voltage away from vulnerable circuits, providing protection from surging voltages. When a transient voltage is applied to either of the two terminals of the 20KPA132CA, the diode briefly conducts, allowing the transient voltage or current to be diverted away from the protected circuit.

The 20KPA132CA is a versatile TVS diode that can be used in a variety of applications to protect against transient surges. Its wide-range of capacitance values, operating temperature range, and high reliability makes it an excellent choice for many industrial, automotive, and power-suppression circuits.

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