Q4004V3

$0.42

Description：TRIAC SENS GATE 400V 4A TO251
Series：-

SKU:9aeb2537c99c Category: TRIACs Brand: Littelfuse Inc.

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Product introduction

Q4004V3 is listed in the Triacs range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is TRIAC SENS GATE 400V 4A TO251. Review the specifications below when checking this part for your BOM.

Triacs specifications for Q4004V3

Description：TRIAC SENS GATE 400V 4A TO251
Series：-
Mfr：Littelfuse Inc.
Package：Bulk
Triac Type：Logic - Sensitive Gate
Voltage - Off State：400 V
Current - On State (It (RMS)) (Max)：4:00 AM
Voltage - Gate Trigger (Vgt) (Max)：1.3 V
Current - Non Rep. Surge 50, 60Hz (Itsm)：46A, 55A
Current - Gate Trigger (Igt) (Max)：10 mA
Current - Hold (Ih) (Max)：20 mA
Configuration：Single
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-251-3 Short Leads, IPAK, TO-251AA
Supplier Device Package：TO-251 (V-Pak/I-Pak)

Triacs datasheet and documents for Q4004V3

Q4004V3

Triacs Overview

The Littelfuse Q4004V3 is a sensitive gate triac from the Teccor Qxx04xx series, rated for 4 A RMS on-state current and 400 V repetitive peak off-state voltage. It operates within a junction temperature range of -40 °C to +125 °C and utilizes a TO-251-3 (DPAK) surface-mount package. Key electrical parameters include a maximum holding current of 20 mA, a gate trigger voltage of 2 V, and a gate trigger current ranging from 10 mA to 25 mA. The device exhibits an on-state voltage of 1.6 V and supports non-repetitive surge currents of 46 A or 55 A depending on specific test conditions.

Triacs Feature Summary

Sensitive gate architecture enabling control in Quadrants I, II, III, and IV
Glass-passivated junctions for parameter stability and long-term reliability
Electrically isolated surface-mount packaging

Triacs Applications

AC switching and phase control circuits
Speed controls for motors
Temperature modulation controls
Lighting controls requiring noise immunity

Triacs Procurement Notes

Verify the exact suffix against official Littelfuse documentation to confirm pinout and thermal characteristics. Ensure the procurement channel provides valid RoHS compliance certificates. Confirm that the TO-251-3 package variant matches the design requirements for surface-mount assembly processes.

Triacs Selection Notes

Select this component when four-quadrant gating sensitivity is required for digital circuit control. The 4 A rating suits moderate power AC loads. Verify that the 400 V blocking capability aligns with the system's peak line voltages. Consider the thermal performance of the TO-251-3 package for the intended heat dissipation environment.

Triacs Part Context

This part belongs to the Teccor brand Triacs portfolio by Littelfuse. It is designed as a replacement for discrete diac-triac combinations in applications needing integrated triggering. The Qxx04xx series specifically targets cost-sensitive and space-constrained designs requiring reliable AC power control.