S25KR

The S25KR is a family of single, unidirectional fast-recovery rectifiers that are available either in an axial leaded package or a surface mount package with a 25A current rating and up to an 800V reverse breakdown voltage. The S25KR series is suitable for a range of applications, from automotive to consumer electronic products, and for use in other high-power amplifier circuits.

S25KR Application Field

The S25KR series can perform rectification for high current, low noise power supplies, fluorescent lamps, photoflash circuits, full-bridge chopper systems, and filtering circuits. The S25KR also provides optimal performance in high-frequency converters such as switched-mode power supplies (SMPSs) and solar microinverters.

The S25KR series is designed to meet the required reverse current and switching speed performance of major international standards, including many commercial and industrial specifications. The rectifiers are also designed to be compatible with advanced semiconductor technologies such as Silicon on Insulator (SOI) and gallium arsenide (GaAs). The S25KR series is ideal for use in applications demanding high electrical performance, such as automotive, industrial, and advanced power electronics.

S25KR Working Principle

The S25KR series works on the principle of a PN junction diode. The PN junction of the S25KR is made up of two N-type and P-type regions. When the P region has more holes than the N region has electrons, the diode is in its forward-biased state. When the N region has more electrons than the P region has holes, the diode is in its reverse-biased state. In the forward-biased state, current can flow uninterrupted. However, in the reverse-biased state, the diode blocks current flow.

One of the reasons why the S25KR series can be used in applications demanding high performance is the fast-recovery feature of the rectifier. The fast-recovery feature allows the diode to quickly switch from its forward-biased state to its reverse-biased state. This allows the rectifier to handle large amounts of current switch on and off quickly, reducing the risk of power loss and increasing the system’s efficiency.

The S25KR series also has a low reverse-recovery voltage, meaning that it can switch from its forward-biased state to its reverse-biased state without creating a large voltage spike. This reduces the losses caused by voltage drops and improves the system’s overall efficiency.

Conclusion

The S25KR is a family of single, unidirectional fast–recovery rectifiers with a 25A rating and up to 800V reverse breakdown voltage, for use in automotive, industrial and advanced power electronics applications. With a fast recovery feature and low reverse recovery voltage, the S25KR makes an ideal choice for applications that require high electrical performance. The S25KR series also complies to international standards and is compatible with advanced semiconductor technologies.