K2000SRP

Overview

The Littelfuse K2000SRP is a high-voltage trigger diode (SIDAC) from the Kxxxzy series, designed for overvoltage protection in surface-mount applications. It features a breakover voltage of 250 V and a rated repetitive off-state voltage of 190 V. The device supports a non-repetitive on-state current of 20 A and an RMS current rating of 1 A. Operating within a temperature range of -40°C to +85°C, it utilizes a DO-214 package. Key electrical characteristics include a maximum breakover current of 10 uA, a holding current of 150 mA, and an on-state voltage of 1.5 V.

Feature Summary

• Bidirectional high-voltage triggering capability for symmetric surge protection
• Surface-mount construction compatible with automated assembly processes
• Robust transient handling with high peak current tolerance

Applications

• Protection of sensitive electronic circuits against voltage transients
• Triggering elements for thyristor-based surge protective devices
• Overvoltage protection in telecommunications equipment

Procurement Notes

Verify the specific ordering suffix to ensure the correct packaging configuration, such as cut tape or reel, matches the production requirements. Confirm RoHS compliance status through the manufacturer's official documentation before integration into regulated assemblies. Cross-reference the datasheet revision date to ensure alignment with current manufacturing specifications.

Selection Notes

Select this component when a precise 250 V breakover threshold is required for bidirectional protection schemes. Ensure the circuit design accommodates the 150 mA holding current to maintain reliable latching during discharge events. Verify that the PCB layout supports the thermal dissipation needs associated with the 1 A RMS current rating in the specified operating temperature range.

Part Context

This part belongs to the Kxxxzy SIDAC family, which provides symmetrical switching characteristics for AC line protection. The SRP suffix typically denotes a specific surface-mount variant within the broader K2000 series lineup. These components are engineered to replace bulkier axial leaded equivalents in compact consumer and industrial electronics designs.

Replacement Considerations

Direct substitutes may include other 250 V SIDACs in DO-214 packages from manufacturers like Bourns or Shindengen. Verify that alternative parts match the 250 V breakover voltage and 1 A RMS current ratings to ensure functional equivalence without redesigning the surrounding protection circuitry.