S6004VS2

Overview

The S6004VS2 is a silicon-controlled rectifier (SCR) manufactured by Littelfuse, designed for sensitive gate triggering applications. It features a rated repetitive off-state voltage of 600 V and an RMS on-state current of 4 A. The device operates within a junction temperature range of -40°C to +110°C and utilizes a TO-251 package with through-hole mounting. Key electrical characteristics include a maximum holding current of 6 mA, a forward voltage drop of 1.6 V at rated current, and a gate trigger voltage of 800 mV. The component exhibits low leakage current of 5 µA in the off-state and supports non-repetitive peak currents up to 100 A.

Feature Summary

• Sensitive gate architecture enabling reliable triggering with low gate current requirements
• Robust thermal performance suitable for high-temperature industrial environments
• Compact surface-mount compatible leaded package design for efficient PCB integration

Applications

• Lighting control circuits requiring precise phase-angle regulation
• Solid-state relays for AC load switching applications
• Motor speed control systems for small appliances

Procurement Notes

Verify the specific suffix designation against official Littelfuse documentation to confirm pinout configuration and sensitivity class. Ensure the procurement channel provides traceable certificates of conformity. Cross-reference the part number with the latest datasheet revision to validate parameter consistency before finalizing supply agreements.

Selection Notes

Select this component when a 600 V blocking capability and 4 A continuous current rating are required for AC power control. The sensitive gate characteristic makes it suitable for microcontroller-driven interfaces without additional amplification. Consider the TO-251 package constraints for thermal dissipation and board space availability during the design phase.

Part Context

This SCR belongs to Littelfuse's Teccor series of thyristors, which are widely utilized in consumer electronics and industrial power control. The VS2 suffix typically denotes a specific sensitivity grade and packaging variant within the broader S60xx family. These devices are engineered to replace older discrete solutions with more compact and reliable solid-state alternatives.

Replacement Considerations

Direct replacements may include other 600 V, 4 A SCRs from Littelfuse or competitors such as STMicroelectronics or Vishay. Verify that substitute parts match the sensitive gate trigger current specifications and maintain identical pin configurations to ensure compatibility with existing circuit layouts.