MKP3V240RL

Overview

The MKP3V240RL is a bidirectional high-voltage SIDAC trigger from onsemi, designed for direct AC power line interface. It switches from a blocking state to a low voltage on-state upon reaching its breakover voltage and conducts like a Triac until current drops below the holding threshold. The device features an axial lead package (CASE 267) with glass passivation for reliability. Key electrical parameters include a repetitive peak off-state voltage of 180 V, a typical breakover voltage of 220 V, and an on-state RMS current rating of 1.0 A at 80°C case temperature. It supports a peak non-repetitive surge current of 20 A.

Feature Summary

• Bidirectional triggering capability for direct AC power line interfacing
• Glass passivation ensures reliable operation in harsh environments
• Axial lead package provides high pulse current handling capability

Applications

• High Pressure Sodium Vapor Lighting
• Strobes and Flashers
• Ignitors
• Triggering gates of SCRs and Triacs

Procurement Notes

Verify the specific ordering suffix RL against official documentation to confirm tape and reel packaging specifications. Confirm that the component meets Pb-Free requirements as indicated by the G suffix variants in the manufacturer's catalog. Ensure the selected part number matches the required 180 V breakdown rating for the target circuit design.

Selection Notes

Select this component when a bidirectional trigger is required for AC mains applications. The 180 V breakover voltage suits specific high-voltage regulator or ignitor circuits. Evaluate thermal derating curves for ambient temperatures exceeding standard limits. Ensure the load current remains within the 1.0 A RMS rating during continuous operation.

Part Context

This device belongs to the MKP3Vxx0 series of preferred SIDAC triggers. The '240' designation indicates the 180 V off-state voltage variant, distinct from the 90 V rated MKP3V120. These devices are engineered for robust performance in lighting and ignition systems requiring precise voltage thresholds.

Replacement Considerations

Direct substitutes include other onsemi SIDACs with similar 180 V ratings, such as the MKP3V120 if lower voltage tolerance is acceptable. Verify pinout compatibility and thermal resistance characteristics before substituting with components from other manufacturers.