S2070W82

Overview

The Littelfuse S2070W82 is a Silicon Controlled Rectifier (SCR) rated for 70 amperes and 200 volts. It utilizes a TO-218X flange mount package with a plastic/epoxy body and three terminals, where the case serves as the anode. The device features a single configuration with a maximum DC gate trigger current of 50 mA. It is RoHS compliant and classified under ECCN code EAR99.

Feature Summary

• Flange mount construction for efficient thermal dissipation
• Single-phase SCR configuration
• RoHS compliant manufacturing

Applications

• Industrial motor control systems
• Solid state relay circuits
• Power regulation modules

Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or certified partners. Confirm lot traceability and datasheet revisions prior to integration. Note that this specific part number may have limited availability or discontinued status; validate current supply chain viability before finalizing design specifications.

Selection Notes

Select this component for applications requiring robust 70A current handling in low-voltage 200V environments. Ensure the TO-218X package fits the mechanical constraints and that the mounting surface supports the required thermal management. Verify gate drive capabilities align with the 50 mA maximum trigger requirement.

Part Context

This SCR belongs to the Littelfuse S2070 series, designed for general purpose power switching. It shares the 70A/200V rating profile with variants like the S2070W81, differing primarily in suffix codes which may indicate packaging or testing variations. It serves as a foundational component in medium-power AC control applications.

Replacement Considerations

The S2070W81 is a documented variant within the same product family sharing identical electrical ratings. Verify if the suffix difference implies any functional changes before substitution.