CS220-25D

Scrs Overview

The CS220-25D is a Silicon Controlled Rectifier (SCR) from the Central Semiconductor CS220 series, housed in a TO-220 package. It features a peak repetitive off-state voltage of 400 V and an RMS on-state current rating of 25 A at 90°C case temperature. The device supports a peak one-cycle surge current of 250 A and has a critical rate of rise of on-state current of 100 A/μs. Electrical characteristics include a maximum gate trigger current of 30 mA and a holding current of 50 mA. Thermal resistance junction-to-case is 1.3 °C/W, with an operating junction temperature range of -40 to +125 °C.

Scrs Feature Summary

• Epoxy molded construction designed for sensing circuit and control system applications
• Tab is electrically common to the anode pin for mounting purposes
• Single element configuration with three leads: cathode, anode, and gate

Scrs Applications

• Sensing circuits
• Control systems

Scrs Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead-free marking if required by assembly specifications. Check for End-of-Life notices as the CS220 series may be discontinued. Request updated datasheets to ensure parameter accuracy before finalizing procurement orders.

Scrs Selection Notes

Select this component based on the 400 V blocking voltage requirement and 25 A continuous current capability. Ensure the application thermal environment allows for adequate heat sinking given the 1.3 °C/W junction-to-case thermal resistance. Verify that the gate drive circuit can supply the necessary trigger current and voltage levels specified in the electrical characteristics table.

Scrs Part Context

The CS220-25D belongs to the broader CS220 series of Silicon Controlled Rectifiers manufactured by Central Semiconductor Corp. This series includes variants with different voltage ratings such as 200 V, 600 V, and 800 V, all sharing similar current handling capabilities and physical packaging. The specific suffix 'D' denotes the 400 V rating within this product family.

Scrs Replacement Considerations

The official documentation lists no replacement part numbers for the CS220-25D, indicating it is classified as End of Life with no direct substitute provided by the manufacturer.