Q4004F41

Triacs Overview

The Littelfuse Q4004F41 is a four-quadrant logic level triac designed for AC power control applications. It features a rated repetitive peak off-state voltage of 400 V and an RMS on-state current of 4 A. The device operates within a junction temperature range of -40°C to +125°C. Key electrical parameters include a maximum gate trigger voltage of 2.5 V and a gate trigger current ranging from 25 mA to 50 mA. It exhibits a typical on-state voltage of 1.6 V and a holding current maximum of 30 mA. The component is housed in a TO-202AB (TO-220AB) three-pin through-hole package.

Triacs Feature Summary

• Four-quadrant sensitivity enables reliable triggering across all gate polarities and MT2 polarities.
• Logic-level compatibility allows direct interface with standard TTL and CMOS logic circuits.
• Robust thermal performance supports operation up to 125°C junction temperature.

Triacs Applications

• Solid state relays
• AC motor speed controls
• Lighting dimmers

Triacs Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm exact electrical tolerances and packaging configuration. Confirm RoHS compliance status via official datasheets before integration. Ensure the selected variant matches the required lead time and production lifecycle stage for the target design.

Triacs Selection Notes

Select this component when low gate drive current is required for direct logic interfacing. Verify that the 400V blocking voltage meets the circuit's peak line voltage requirements. Consider the TO-202 package size for available PCB real estate and thermal dissipation needs relative to the load current.

Triacs Part Context

This part belongs to the Littelfuse Teccor series of silicon controlled rectifiers. The Q4004F41 specifically denotes a 4A, 400V logic-level triac. It is distinct from higher voltage or current variants within the same family, such as the Q6004 series.

Triacs Replacement Considerations

Direct replacements must match the 4A/400V rating and TO-202 package. Verify equivalent logic-level sensitivity (Igt/Vgt) to ensure circuit compatibility without redesigning the gate drive network.

Triacs FAQ

What is the maximum gate trigger current for the Q4004F41?

The maximum gate trigger current is specified as 50 mA.

Does the Q4004F41 support four-quadrant triggering?

Yes, it is a four-quadrant logic level triac capable of triggering in all combinations of MT2 and gate polarity.

What is the package type for this component?

The component is supplied in a TO-202AB (TO-220AB) three-pin through-hole package.