Q8008DH4RP

Triacs Overview

The Littelfuse Q8008DH4RP is a bidirectional triac designed for surface-mount applications. It features an RMS on-state current of 8 A and a rated repetitive off-state voltage (VDRM) of 800 V. The device exhibits a maximum on-state voltage of 1.6 V and a gate trigger voltage (Vgt) of 1.3 V with a corresponding gate trigger current (Igt) of 35 mA. Leakage current at VDRM is specified at 10 uA, while the holding current (Ih) maximum is 35 mA. Non-repetitive peak on-state currents are listed as 80 A and 85 A. Operating temperature ranges from -40 C to +125 C. The component is housed in a TO-252-3 package.

Triacs Feature Summary

• Bidirectional switching capability for AC control circuits
• Surface-mount construction utilizing TO-252-3 packaging
• High thermal stability supporting operation up to 125 C

Triacs Applications

• AC motor speed control systems
• Solid-state relay implementations
• Lighting dimmer circuitry

Triacs Procurement Notes

Verify the specific suffix RP against official Littelfuse documentation to confirm reel packaging specifications. Ensure compatibility with SMD assembly processes by reviewing the recommended soldering profile provided in the datasheet. Confirm RoHS compliance status through the manufacturer's latest environmental declarations before finalizing procurement orders.

Triacs Selection Notes

Select this component when an 800 V blocking voltage and 8 A continuous current rating are required in a compact surface-mount form factor. Evaluate the 1.6 V on-state voltage drop for thermal management calculations within the target enclosure. Compare gate sensitivity requirements against the 35 mA trigger current specification to ensure adequate drive capability from the control interface.

Triacs Part Context

This part belongs to the Qxx08xHx series of high-reliability thyristors manufactured by Littelfuse. The series utilizes advanced silicon gate technology to provide robust performance in industrial environments. The TO-252-3 package allows for efficient heat dissipation relative to its physical footprint compared to traditional leaded packages.

Triacs Replacement Considerations

Cross-reference with Q8008NH4RP for alternative pinout configurations or Q6008DH4RP for lower voltage requirements. Verify electrical parameter equivalence and mechanical footprint compatibility before substituting.