QK040J4TP

$5.77

Description：TRIAC 1KV 40A TO218X
Series：Qxx40xx

SKU:33af29fc883f Category: TRIACs Brand: Littelfuse Inc.

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Product introduction

QK040J4TP is listed in the Triacs range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is TRIAC 1KV 40A TO218X. Review the specifications below when checking this part for your BOM.

Triacs specifications for QK040J4TP

Description：TRIAC 1KV 40A TO218X
Series：Qxx40xx
Mfr：Littelfuse Inc.
Package：Tube
Triac Type：Standard
Voltage - Off State：1 kV
Current - On State (It (RMS)) (Max)：40 A
Voltage - Gate Trigger (Vgt) (Max)：1.3 V
Current - Non Rep. Surge 50, 60Hz (Itsm)：335A, 400A
Current - Gate Trigger (Igt) (Max)：50 mA
Current - Hold (Ih) (Max)：80 mA
Configuration：Single
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-218X-3 Isolated Tab
Supplier Device Package：TO-218X Isolated
Grade：-
Qualification：-

Triacs datasheet and documents for QK040J4TP

QK040J4TP

Triacs Overview

The Littelfuse QK040J4TP is a 40A, 1kV TRIAC in a TO-218X-3 isolated package. It features a maximum RMS on-state current of 40A and a repetitive peak off-state voltage of 1000V. The device has a gate trigger voltage max of 1.3V and holding current max of 80mA. Operating temperature range is -40°C to +125°C TJ. Non-repetitive surge current is 335A at 50Hz and 400A at 60Hz.

Triacs Feature Summary

High-voltage blocking capability for industrial power control applications
Isolated tab design for efficient thermal management and safety
Robust surge current handling for demanding load switching

Triacs Applications

Industrial motor control systems
High-power heating element regulation
Solid-state relay modules

Triacs Procurement Notes

Verify the specific suffix J4TP against official Littelfuse documentation to confirm exact electrical parameters. Ensure the TO-218X-3 isolated tab configuration matches the target PCB layout requirements. Confirm RoHS compliance status with the manufacturer's latest release notes before finalizing component selection.

Triacs Selection Notes

Select this component when high voltage isolation and significant current capacity are required in a through-hole format. The TO-218X-3 package provides superior heat dissipation compared to standard plastic packages. Consider the 1.3V gate trigger voltage for driver circuit compatibility. Evaluate thermal resistance characteristics for the specific mounting environment.

Triacs Part Context

This part belongs to the Qxx40xx series of TRIACs from Littelfuse. The series is designed for general-purpose AC power switching. The QK040J4TP specifically targets applications requiring 1kV blocking voltage and 40A continuous current. It utilizes a silicon gate technology for reliable triggering.

Triacs Replacement Considerations

Consult Littelfuse official cross-reference guides for verified substitutes. Generic TRIAC replacements may not match the TO-218X-3 isolated tab dimensions or specific gate trigger thresholds.

Explore related parts through Thyristors, Discrete Semiconductor Products, all product categories, ChipApex homepage.

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