HT5762RP

Overview

The HT5762RP is a DIAC manufactured by Littelfuse Inc., designed for triggering thyristors and triacs in AC power control applications. It features a breakover voltage range of 32V to 40V, allowing for precise gate triggering in light dimmers and motor speed controllers. The device supports a peak current of 2A and utilizes the DO-35 (DO-204AH) axial leaded package. Operating temperatures range from -55°C to +150°C, ensuring reliability in various thermal environments.

Feature Summary

• Symmetric bidirectional switching characteristic for consistent trigger behavior in both half-cycles of AC waveforms
• Defined breakover voltage window ensures reliable gate triggering without premature conduction
• Robust peak current handling capability suitable for standard RC phase-control circuits

Applications

• Lighting dimmer switches
• Universal motor speed controls
• Thyristor and triac gate triggering circuits

Procurement Notes

Verify component authenticity through official Littelfuse channels or authorized distributors. Confirm package integrity and marking legibility upon receipt. Ensure storage conditions comply with manufacturer guidelines to prevent moisture absorption. Cross-reference datasheet specifications against application requirements before integration.

Selection Notes

Select this component when a symmetric trigger device with a 32V to 40V breakover voltage is required. The DO-35 package suits through-hole PCB layouts. Consider thermal management if ambient temperatures approach the upper limit. Verify circuit impedance matches the 2A peak current rating to avoid device failure during high-current transients.

Part Context

This DIAC belongs to the general-purpose thyristor family offered by Littelfuse. It serves as a fundamental building block for phase-angle control circuits. The axial leaded construction facilitates easy manual assembly and automated placement in consumer electronics manufacturing lines.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.