ST35RP

Overview

The Littelfuse ST35RP is a SIDAC thyristor housed in the DO-214AA (SMB) package. It features a breakover voltage range of 30 to 40V and a peak output current capability of 2A. The device exhibits a breakover current of 15 µA, facilitating precise triggering applications in gate drive circuits.

Feature Summary

• Provides bidirectional trigger functionality for thyristor or triac gates
• Incorporates robust transient overvoltage protection characteristics
• Utilizes compact surface-mount packaging for automated assembly

Applications

• Gate triggering for high-power thyristors
• Triac driver circuits in AC power control systems
• Overvoltage protection stages in electronic loads

Procurement Notes

Verify component authenticity through official Littelfuse channels or authorized distributors. Confirm that the received units match the ST35RP designation and DO-214AA package. Check datasheets for specific handling requirements regarding electrostatic discharge sensitivity during storage and installation processes.

Selection Notes

Select this component when a reliable, symmetrical trigger source is required for controlling high-current switching devices. The specified voltage range suits standard industrial AC line voltages. Ensure the application environment supports the thermal and electrical ratings defined in the manufacturer's documentation for long-term reliability.

Part Context

This SIDAC belongs to Littelfuse’s discrete semiconductor portfolio, specifically within the thyristor category. It serves as a critical interface element between low-power control logic and high-power switching stages, enabling efficient management of electrical loads in various industrial and consumer electronics applications.

Replacement Considerations

The product status is listed as obsolete. Engineers should consult Littelfuse technical support for verified substitute part numbers or alternative components with compatible electrical specifications and package dimensions.