SJ4012DRP

Scrs Overview

The SJ4012DRP is a Silicon Controlled Rectifier (SCR) manufactured by Littelfuse, designed for surface-mount applications in the TO-263-2 package. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (It RMS) of 12 A. The device exhibits a maximum holding current (Ih) of 35 mA and supports a non-repetitive on-state peak current of 300 A. Gate triggering requirements include a voltage (Vgt) of 1.5 V and a current (Igt) of 10 mA. Operating temperatures range from -40°C to +150°C, with a forward voltage drop (Vf) of 1.6 V.

Scrs Feature Summary

• High thermal stability enabling operation up to 150°C junction temperature
• Surface-mount construction optimized for automated PCB assembly
• Robust surge handling capability with 300 A non-repetitive peak current

Scrs Applications

• Industrial motor control systems
• AC power regulation circuits
• Solid-state relay implementations

Scrs Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or certified supply chain partners. Confirm RoHS compliance status via official datasheets prior to integration. Ensure storage conditions maintain moisture sensitivity levels according to manufacturer guidelines to prevent package degradation during soldering processes.

Scrs Selection Notes

Select this SCR when high-temperature reliability and compact surface-mount form factors are required. Compare gate trigger currents against driver capabilities to ensure sufficient signal strength. Evaluate thermal management needs given the 150°C maximum operating limit and 12 A continuous current rating for the specific application environment.

Scrs Part Context

This component belongs to the SJxx20xx series of thyristors, representing Littelfuse's advanced silicon-controlled rectifiers. These devices utilize specialized manufacturing techniques to enhance switching performance and thermal resilience compared to standard industry equivalents, targeting demanding industrial and automotive environments.

Scrs Replacement Considerations

Direct substitutes within the same family include SJ4016L2TP and SJ4020N2RP. Verify pin compatibility and thermal resistance values before substitution. Ensure replacement parts meet identical voltage and current ratings for circuit safety.