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TVS - Diodes

Transient Voltage Suppression (TVS) diodes are typically used to provide protection for sensitive electronic devices against electrical transients like fast-moving electric fields, induced by electrostatic discharge (ESD), surges, and lightning. They can also act as overvoltage protection.

The 15KP28CA-TP is a surface-mount JEDEC Lead Plated TVS diode that can provide 600W peak power dissipation. Its ultimate clamping voltage (maximum voltage that can be withstood) is 28V. It features low peak clamping voltage, fast response time, and 600W of peak power dissipation. It has a wide range of operating temperatures from -55°C to 150°C.

Application Field

The 15KP28CA-TP is suitable for a variety of applications, such as in computer and telecom systems, sensitive industrial equipment, PC boards, and data communication equipment.

Working Principle

The 15KP28CA-TP works by acting as a spark-gap overvoltage protection device. It consists of two p-n junctions in series, with one junction acting as a trigger spark-gap and the other junction providing the current-limiting function. When the energy from a voltage transient reaches the TVS diode, the two junctions work together in order to protect the sensitive device from any damage.

The p-n junction closest to the transient acts as a spark gap, allowing a portion of the transient to flow through. This energy is divided into two parts, being dissipated and stored. The stored energy is then limited by the second p-n junction, which acts as a current limiter. The energy then passes through the diode, allowing it to be dissipated. This provides for a protective overvoltage transient protection.

The 15KP28CA-TP is a valuable and cost-effective choice for protecting sensitive equipment from the damaging effects of transients.

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