QJ8025LH5TP

Triacs Overview

The Littelfuse QJ8025LH5TP is a high-temperature bidirectional triac designed for robust power control applications. It features an RMS on-state current of 25 A and supports non-repetitive peak on-state currents up to 290 A or 350 A depending on the specific variant configuration. The device offers a rated repetitive off-state voltage (VDRM) of 800 V, ensuring reliable blocking capabilities in high-voltage environments. With a maximum on-state voltage of 1.55 V, it maintains efficient conduction characteristics. The component operates within a temperature range from -40°C to +150°C and utilizes a TO-220AB-3 insulated package for through-hole mounting.

Triacs Feature Summary

• High-temperature operation capability up to 150°C for demanding thermal environments
• Insulated TO-220AB-3 package design for enhanced safety and heat dissipation
• Standard high-temperature Alternistor architecture for reliable switching performance

Triacs Applications

• Industrial motor control systems requiring high thermal stability
• Solid-state relays operating under elevated temperature conditions
• AC power switching circuits with high voltage isolation requirements

Triacs Procurement Notes

Verify the exact suffix and manufacturer part number against official Littelfuse documentation to ensure correct electrical specifications. Confirm RoHS compliance status and specific current ratings (290 A vs 350 A) as these may vary by production batch. Always reference the latest datasheet for thermal management guidelines and mounting instructions before integration into final designs.

Triacs Selection Notes

Select this component when high-temperature resilience and insulated packaging are critical. Compare the 25 A RMS rating against load requirements and ensure the 800 V blocking voltage exceeds circuit peaks. Consider the TO-220AB-3 form factor for board space and thermal interface needs relative to lower-rated alternatives.

Triacs Part Context

This part belongs to the QJ series of standard high-temperature Alternistors from Littelfuse. It shares the 25 A current class with other variants but distinguishes itself through its specific insulation and thermal handling characteristics. The QJ series is engineered for applications where standard triacs might fail due to excessive junction temperatures or dv/dt sensitivity.

Triacs Replacement Considerations

Direct replacements include the QV8025LH5TP for similar high-temperature TRIAC applications, though gate trigger characteristics may differ. The Q8025N5TP serves as a surface-mount alternative with comparable current ratings but requires different PCB layout considerations due to its SMTO-263-2 package.