Q8025NH6TP

Triacs Overview

The Littelfuse Q8025NH6TP is a bidirectional triac thyristor designed for high-power AC switching applications. It features an RMS on-state current (It RMS) of 25 A and supports non-repetitive peak on-state currents of 208 A or 250 A depending on the pulse width. The device has a rated repetitive off-state voltage (VDRM) of 800 V with a maximum off-state leakage current of 10 uA at VDRM. Key gate parameters include a trigger voltage (Vgt) of 2.5 V and a trigger current (Igt) of 80 mA, utilizing an 80-80-80 mA sensitivity profile. The on-state voltage is 1.8 V, and the maximum holding current (Ih) is 100 mA. It operates within a temperature range of -40°C to +125°C.

Triacs Feature Summary

• High thermal stability and robustness suitable for demanding AC power control environments
• Sensitive gate triggering characteristics ensuring reliable turn-on with low drive power requirements
• Low on-state voltage drop contributing to improved energy efficiency and reduced heat dissipation needs

Triacs Applications

• Industrial motor speed control systems
• Solid-state relay (SSR) modules
• AC power regulation circuits in heavy machinery

Triacs Procurement Notes

Verify component authenticity through official Littelfuse channels or authorized distributors. Confirm datasheet revisions match design requirements. Ensure storage conditions comply with moisture sensitivity levels. Validate pinout compatibility with PCB footprint specifications before assembly. Check for RoHS compliance documentation if required by project standards.

Triacs Selection Notes

Select this component when an 800 V blocking voltage and 25 A continuous current rating are necessary. The TO-263 surface mount package facilitates automated assembly and efficient thermal management via the exposed tab. Consider the 80-80-80 mA gate sensitivity for driver interface matching. Evaluate thermal resistance requirements against the expected ambient operating conditions to ensure junction temperatures remain within the specified limits during operation.

Triacs Part Context

This part belongs to the Qxx25xxHx series of high-performance triacs from Littelfuse. These devices are engineered for superior surge handling capabilities compared to standard triacs. The series utilizes advanced silicon technology to provide enhanced dv/dt immunity and reliable commutation. This specific model represents a surface-mount variant optimized for modern printed circuit board layouts requiring compact form factors.

Triacs Replacement Considerations

Direct replacements must match the 800 V VDRM, 25 A It RMS, and TO-263-3 package dimensions. Verify gate trigger current and voltage profiles to ensure circuit compatibility. Check thermal characteristics and mounting hole spacing for mechanical fit. Cross-reference with other manufacturers' equivalent TO-263 triacs having identical electrical ratings.