S401ERP

Scrs Overview

The S401ERP is a standard recovery silicon controlled rectifier (SCR) manufactured by Littelfuse Inc. It features a maximum off-state voltage of 400 V and a repetitive peak forward current rating of 1 A. The device utilizes a TO-92-3 (TO-226AA) through-hole package with formed leads, suitable for surface or panel mounting applications requiring compact thyristor solutions. It operates with a maximum gate trigger voltage of 1.5 V.

Scrs Feature Summary

• Standard recovery thyristor construction for general switching applications
• Compact three-pin TO-92 through-hole package design
• RoHS compliant manufacturing process

Scrs Applications

• General purpose AC/DC switching circuits
• Low power motor control interfaces
• Lighting dimmer implementations

Scrs Procurement Notes

Verify the specific ordering suffix ERP corresponds to the Tape & Reel packaging configuration as indicated in distributor documentation. Confirm RoHS3 compliance status matches project requirements. Ensure the TO-92-3 lead form matches the intended PCB footprint or panel mount assembly process before finalizing procurement orders.

Scrs Selection Notes

Select this component when a low-current 1 A SCR is required within a small form factor. The 400 V blocking capability suits moderate voltage applications. Consider the through-hole mounting style for manual assembly or high-reliability environments where surface mount alternatives are unsuitable. Verify thermal dissipation needs against the TO-92 package limitations.

Scrs Part Context

This part belongs to the Littelfuse thyristor family, specifically designed for standard recovery applications. It serves as a discrete semiconductor switch within power electronics assemblies. The TO-92 variant offers a cost-effective solution for lower power density designs compared to larger industrial packages like TO-220 or TO-263.

Scrs Replacement Considerations

Direct substitutes include other 400V 1A SCRs in TO-92 packages from various manufacturers. Cross-reference pinout compatibility and gate trigger specifications carefully. Generic equivalents may vary in surge current ratings or thermal resistance characteristics.