EC103MAP

Overview

The Littelfuse EC103MAP is a sensitive gate Silicon Controlled Rectifier (SCR) rated for 600V blocking voltage. It supports a maximum forward current of 0.8A and requires a gate trigger current of 200uA for activation. The device is housed in a TO-92 through-hole package, suitable for surface or panel mounting applications requiring low-power switching capabilities.

Feature Summary

• Sensitive gate architecture enabling microamp-level trigger currents
• High voltage blocking capability for circuit isolation
• Through-hole leaded package for robust mechanical mounting

Applications

• Low-power AC/DC power supply control circuits
• General purpose switching applications
• Gate drive circuits for larger thyristor systems

Procurement Notes

Verify the specific suffix 'MAP' against official Littelfuse documentation to confirm package style and tape/reel specifications. Ensure the required gate trigger current aligns with the design's available drive current. Confirm thermal management requirements for continuous operation within the specified current limits.

Selection Notes

Select this component when low gate drive current is critical for efficiency. The 600V rating provides adequate margin for standard industrial voltages. Consider the TO-92 package constraints for PCB space and thermal dissipation compared to surface mount alternatives.

Part Context

This SCR belongs to the EC103 series, designed for sensitive gate triggering. It serves as a compact solution for controlling higher power loads using minimal input signal energy. The series is commonly used in consumer electronics and industrial control panels where size and cost are primary factors.

Replacement Considerations

Direct substitutes include other 600V sensitive gate SCRs in TO-92 packages from Littelfuse or competitors. Verify pinout compatibility and trigger current specifications before substitution. Cross-reference datasheets for equivalent holding current and surge ratings.