S4006DRP

Overview

The Littelfuse S4006DRP is a silicon-controlled rectifier (SCR) designed for high-reliability power control applications. It features a 400V repetitive peak off-state voltage and an RMS on-state current rating of 6A. The device incorporates a sensing gate structure, characterized by a maximum DC gate trigger current of 200µA, which facilitates low-power triggering requirements in sensitive circuits. Manufactured by Littelfuse Inc., this component utilizes a surface-mount package suitable for automated assembly processes.

Feature Summary

• Sensing gate architecture enables efficient triggering with minimal gate drive current
• Robust thermal performance supports operation in demanding industrial environments
• Surface-mount construction allows for compact printed circuit board integration

Applications

• Industrial motor speed control systems
• Solid-state relay switching modules
• General-purpose AC power regulation circuits

Procurement Notes

Verify the specific suffix designation against official Littelfuse documentation to confirm exact electrical tolerances and packaging specifications. Ensure that the procurement channel provides authentic components with traceable manufacturing data to maintain system reliability and compliance with technical standards.

Selection Notes

Evaluate the 200µA gate trigger sensitivity against the available driver circuit capabilities to ensure reliable turn-on. Confirm that the 400V voltage rating exceeds the peak line voltages present in the target application. Assess the thermal management requirements associated with the 6A continuous current rating under expected load conditions.

Part Context

This SCR belongs to the broader family of Littelfuse thyristor devices engineered for robust power switching. The series typically offers standardized pinouts and mechanical dimensions to facilitate design-in flexibility across various power electronics platforms requiring reliable semiconductor switching solutions.

Replacement Considerations

Consult official Littelfuse substitution guides for verified equivalent part numbers. Cross-reference critical parameters such as holding current, latching current, and package footprint before implementing any alternative component to ensure functional compatibility.