EC103M3AP

Scrs Overview

The Littelfuse EC103M3AP is a Silicon Controlled Rectifier (SCR) belonging to the EC series, designed for general-purpose switching applications. It features a TO-92 three-pin package and supports an RMS on-state current of 0.8A with a peak repetitive forward voltage rating of 100V. The device operates within a junction temperature range of -40°C to 125°C and complies with RoHS standards. Key electrical parameters include a non-repetitive peak on-state current of 20A and a holding current of 5mA, ensuring reliable latching in low-power control circuits.

Scrs Feature Summary

• Hermetically sealed silicon structure for stable performance
• Low gate trigger current for efficient logic-level driving
• High surge current capability for robust transient handling

Scrs Applications

• AC power control circuits
• Lighting dimmer switches
• Motor speed control systems
• Heater regulation units

Scrs Procurement Notes

Verify the specific suffix 'M3AP' against official Littelfuse documentation to confirm pinout orientation and marking codes. Ensure the procurement channel provides traceable datasheets matching the exact part number to avoid confusion with similar EC series variants that may differ in thermal characteristics or packaging tolerances.

Scrs Selection Notes

Select this component when a compact TO-92 SCR is required for low-current AC switching tasks. Confirm that the circuit's peak voltage does not exceed 100V and that the average load current remains below 0.8A. Consider thermal management requirements if operating near the upper limits of the specified current range.

Scrs Part Context

This part belongs to the Littelfuse EC series of small-signal SCRs. These devices are widely used in consumer electronics and industrial controls where space-constrained, through-hole mounting is preferred. The series offers a balance of high voltage blocking capability and moderate current handling in a standard transistor outline package.

Scrs Replacement Considerations

Compatible substitutes include the EC103A3 and EC103M3 from Littelfuse or Teccor Electronics, provided the pin configuration matches. Verify that alternative parts meet the same 100V voltage and 0.8A current ratings before implementation.