QJ4025NH5RP

Triacs Overview

The Littelfuse QJ4025NH5RP is a bidirectional triac designed for surface-mount applications. It features an RMS on-state current of 25 A and a rated repetitive off-state voltage (VDRM) of 400 V. The device operates within a junction temperature range of -40°C to +125°C. Key electrical parameters include a maximum holding current of 100 mA, a gate trigger voltage of 2.5 V, and a gate trigger current of 50 mA. The on-state voltage is specified at 1.8 V, with a maximum off-state leakage current of 10 µA at VDRM. Non-repetitive peak on-state currents are rated at 167 A and 200 A. The component is housed in an SMTO-263-2 package.

Triacs Feature Summary

• Surface-mount construction utilizing the SMTO-263-2 package for automated PCB assembly
• Bidirectional AC switching capability with integrated diac-like gate triggering characteristics
• High thermal stability supporting operation up to 125°C junction temperature

Triacs Applications

• AC motor speed control circuits
• Solid-state relay implementations
• Lighting dimmer modules

Triacs Procurement Notes

Verify the exact suffix against manufacturer documentation to confirm pinout and isolation specifications. Confirm RoHS compliance status through official Littelfuse declarations prior to integration. Ensure ordering quantities align with standard reel packaging requirements defined by the supplier.

Triacs Selection Notes

Select this component when a 25 A RMS current rating and 400 V blocking voltage are required in a surface-mount form factor. Compare gate sensitivity requirements against the 50 mA trigger current specification. Evaluate thermal management needs based on the 125°C maximum operating limit and package thermal resistance.

Triacs Part Context

This part belongs to the Littelfuse Q-series triacs, which are engineered for general-purpose AC power control. The series offers various voltage and current ratings packaged in both through-hole and surface-mount configurations to support diverse industrial and consumer electronics designs.

Triacs Replacement Considerations

Cross-reference with other Littelfuse Q-series triacs sharing the SMTO-263-2 package. Verify that substitute parts match the 25 A RMS current, 400 V voltage rating, and identical gate trigger parameters to ensure circuit compatibility.