Q2040J7TP

Triacs Overview

The Littelfuse Q2040J7TP is a bidirectional triac from the Q2040 series, designed for high-current AC power control applications. It features an RMS on-state current (It RMS) of 40 A and a rated repetitive peak off-state voltage (VDRM) of 200 V. The device operates within a junction temperature range of -40°C to +125°C and utilizes an SMTO-218 through-hole package. Key electrical parameters include a maximum holding current (Ih) of 120 mA, a gate trigger voltage (Vgt) of 2.5 V, and a gate trigger current (Igt) of 100 mA. The on-state voltage drop is specified at 1.8 V, with a non-repetitive peak on-state current capability of 335 A or 400 A depending on pulse width.

Triacs Feature Summary

• High current handling capability with 40 A RMS rating in a compact thermal package
• Insensitive gate structure allowing reliable triggering with low gate current requirements
• Robust dv/dt and di/dt ratings suitable for inductive load switching

Triacs Applications

• Solid-state relays requiring high current isolation
• AC motor speed control circuits
• Lighting dimmer applications for resistive and inductive loads

Triacs Procurement Notes

Verify the specific suffix J7TP against the manufacturer's latest datasheet to confirm pinout and packaging details. Ensure the component meets RoHS and REACH compliance requirements for your target market. Cross-reference the part number with authorized distributors to avoid counterfeit components, as Littelfuse offers multiple variants within the Q2040 family.

Triacs Selection Notes

Select this component when a 200 V blocking voltage is sufficient for the AC line voltage. Compare the 40 A RMS rating against the expected load current including surge factors. Consider the SMTO-218 package size for PCB layout constraints and heatsinking requirements relative to lower-rated alternatives in the same series.

Triacs Part Context

The Q2040J7TP belongs to the Littelfuse Q2040 series of high-power triacs. This series is characterized by its insensitive gate technology and robust construction for industrial power control. The J7TP suffix typically denotes a specific tape-and-reel or tube packaging option compared to the standard J7 variant, though functional specifications remain consistent across the series.

Triacs Replacement Considerations

Direct replacements include other Littelfuse Q2040 series parts such as Q2040J7 or Q2040G7, provided the voltage and current ratings match. Alternative manufacturers may offer equivalent 40 A / 200 V triacs in SMTO-218 packages, but verify gate sensitivity and thermal resistance parameters carefully.