HT32ARP

Overview

The HT32ARP is a standard bidirectional DIAC trigger device manufactured by Littelfuse. It belongs to the Teccor brand thyristor family and is designed for triggering triacs in AC power control applications. The component features a symmetrical breakdown voltage characteristic, allowing it to conduct current equally in both directions once the breakover voltage is reached. This functionality makes it suitable for phase control circuits where precise timing of triac firing is required.

Feature Summary

• Bidirectional trigger capability for symmetric AC signal processing
• Standard DIAC construction for reliable triac gate triggering
• RoHS compliant manufacturing process

Applications

• Triac gate triggering in light dimmer circuits
• Motor speed control systems
• AC power regulation modules

Procurement Notes

Verify the specific suffix ARP against the official Littelfuse datasheet to confirm package type and compliance status. Ensure the ordering information matches the exact electrical specifications required for the target circuit design before procurement.

Selection Notes

Select this component based on its bidirectional trigger characteristics and compatibility with standard triac gate drive requirements. Confirm that the breakover voltage aligns with the control circuit's needs for accurate phase angle modulation.

Part Context

The HT32 series represents Littelfuse's line of standard bidirectional DIAC triggers. These devices are widely used in consumer electronics and industrial controls for switching AC loads. The HT32ARP variant maintains the core functional properties of the series while adhering to specific manufacturing standards.

Replacement Considerations

Compatible substitutes include other standard bidirectional DIACs such as DB3 or HT34B. Verify pinout compatibility and electrical parameters like breakover voltage tolerance when substituting.