S2004VS2TP

Overview

The Littelfuse S2004VS2TP is a sensitive silicon-controlled rectifier (SCR) from the Teccor line, designed as a half-wave unidirectional gate-controlled rectifier. It features a 4 A on-state current rating and a 200 V repetitive peak off-state voltage capability. The device utilizes an electrically isolated TO-220 package with a glass-passivated chip junction for parameter stability. Key electrical specifications include a maximum DC gate trigger current of 200 µA, a peak one-cycle forward surge current of 100 A, and a typical peak on-state voltage of 1.6 V. The component supports an operating temperature range from -40 °C to +110 °C.

Feature Summary

• Electrically isolated TO-220 package allows for low-cost assembly techniques
• Glass-passivated chip junction ensures long-term reliability and stability
• High surge capability supporting up to 100 A peak forward current

Applications

• Gate control circuits for power SCRs
• Lighting control systems
• Solid-state relay inputs
• Motor speed control applications

Procurement Notes

Verify the specific suffix 'TP' against official Littelfuse documentation to confirm tape-and-reel packaging availability, as standard listings may indicate bulk or other formats. Confirm that the isolated TO-220 variant matches the required thermal resistance and isolation voltage ratings for the target application environment.

Selection Notes

Select this component when a high-gate-sensitivity SCR is required for driving larger power devices. The 200 µA gate trigger current allows for direct interfacing with logic outputs or microcontrollers without additional amplification. Ensure the circuit design accounts for the 200 V blocking voltage and the thermal derating curves provided in the datasheet for continuous operation.

Part Context

This part belongs to the Littelfuse Teccor series of sensitive SCRs, which complement the manufacturer's broader power SCR portfolio. The series offers various current ratings from 0.8 A to 10 A and voltage ratings from 200 V to 600 V. The S2004VS2TP specifically addresses applications needing moderate current handling with precise gate triggering characteristics in an isolated package.

Replacement Considerations

Direct replacements within the same family include S2004DS2 (non-isolated). Cross-family equivalents such as T106B1 or EC103B share similar 4 A/200 V ratings but differ in package type and isolation capabilities. Verify pinout compatibility and thermal management requirements before substitution.