Q8004L3TP

Triacs Overview

The Littelfuse Q8004L3TP is a bidirectional triac designed for AC switching and phase control applications. It features a 4 A RMS on-state current rating and supports repetitive peak reverse voltages of 400 V, 600 V, or 800 V. The device utilizes a TO-220 package for through-hole mounting with three pins. Key electrical parameters include a maximum gate trigger current of 10 mA and a maximum gate trigger voltage of 1.3 V. It withstands a surge current of 55 A and operates within a temperature range of -40°C to 125°C. The component exhibits a peak on-state voltage of 1.6 V and a holding current of 20 mA.

Triacs Feature Summary

• Sensitive gate type operation ensures reliable triggering in quadrants I and IV for digital control circuitry compatibility.
• Glass-passivated junctions provide enhanced protection against environmental stressors and improve long-term reliability.
• Solid-state switching capability eliminates arcing and contact bounce associated with mechanical relays.

Triacs Applications

• AC solid-state switches
• Lighting controls and dimmers
• Motor speed modulation controls

Triacs Procurement Notes

Verify the specific voltage suffix (e.g., 400V, 600V, or 800V) required for the target application when ordering, as the base part number may represent a series. Confirm that the TO-220 package dimensions and thermal requirements align with the system design constraints before finalizing procurement.

Triacs Selection Notes

Select this component for applications requiring sensitive gate triggering from digital logic sources. Ensure the chosen voltage variant meets the peak line voltage requirements. Consider the thermal management needs given the TO-220 package and 4A current rating for continuous operation in enclosed spaces.

Triacs Part Context

This triac belongs to the Lxx08xx & Qxx08xx series of 8 Amp bidirectional solid state switches, although rated at 4A in this specific configuration. The series is engineered for AC switching and phase control, offering robust performance in household appliances and industrial power control systems.

Triacs Replacement Considerations

Check for direct substitutes within the same Littelfuse family with matching voltage ratings. Verify pinout compatibility (MT1, MT2, Gate) and thermal resistance values when considering alternative manufacturers' TRIACs for retrofitting existing designs.