EC103M1RP

Overview

The Littelfuse EC103M1RP is a Silicon Controlled Rectifier (SCR) belonging to the EC103 series, designed for sensitive gate triggering applications. It features a single element configuration housed in a TO-92 cylindrical plastic package with three pins. The device supports an RMS on-state current of 0.8 A and offers a repetitive peak off-state voltage rating of 600 V. Key electrical characteristics include a maximum DC gate trigger current of 0.2 mA and a holding current maximum of 5 mA. It operates within a temperature range from -40°C to +110°C and complies with RoHS standards.

Feature Summary

• Sensitive gate architecture enabling reliable triggering with low gate current requirements
• Electrically isolated TO-92 package construction suitable for through-hole mounting
• Single-element design optimized for compact circuit integration

Applications

• Lighting control circuits requiring low-power gate drive
• AC power switching applications with moderate current demands
• General-purpose thyristor switching in consumer electronics

Procurement Notes

Verify the specific suffix RP against manufacturer documentation to confirm pinout orientation and marking codes, as suffixes often denote mechanical or marking variations rather than electrical changes. Ensure procurement sources provide original Littelfuse datasheets to validate the 600V rating and TO-92 package details. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a 600V blocking voltage and 0.8A continuous current capacity are required in a small form factor. The sensitive gate characteristic makes it suitable for microcontroller-driven interfaces where minimal gate current is available. Compare against other EC103 variants if different voltage ratings or package styles are needed for the specific application constraints.

Part Context

The EC103M1RP is part of the broader EC103 family of sensitive gate SCRs manufactured by Littelfuse. This series typically spans various voltage ratings from 100V to 800V while maintaining consistent current handling capabilities. The M1 designation generally indicates the 600V voltage grade within this product line, distinguishing it from lower or higher voltage counterparts like the EC103A3 or EC103D1.

Replacement Considerations

Direct substitutes may include other Littelfuse EC103 series parts with matching 600V ratings, such as EC103M73, provided the package and pinout are compatible. Equivalent devices from other manufacturers must be verified for identical I(T)RMS, V(DRM), and sensitive gate specifications.