QJ8025NH5RP

Triacs Overview

The Littelfuse QJ8025NH5RP is a high-temperature bidirectional triac designed for robust AC switching applications. It features an RMS on-state current of 25 A and a rated repetitive off-state voltage (VDRM) of 800 V. The device operates within a junction temperature range of -40°C to +150°C, ensuring reliability in demanding thermal environments. Key electrical parameters include a maximum holding current of 50 mA, a gate trigger voltage of 1.3 V, and a gate trigger current of 50 mA. It exhibits a low on-state voltage of 1.8 V and a leakage current of 10 µA at VDRM. Packaged in a TO-263AB-3 surface-mount format, it supports non-repetitive peak currents up to 250 A.

Triacs Feature Summary

• High-temperature capability with a maximum junction operating temperature of 150°C for enhanced thermal stability.
• Snubberless design architecture that eliminates the requirement for external RC snubber networks.
• Glass-passivated junction construction to ensure long-term parameter stability and device reliability.

Triacs Applications

• Industrial motor speed control systems
• Solid-state relay implementations
• AC power regulation circuits

Triacs Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number QJ8025NH5RP with official Littelfuse documentation. Confirm RoHS compliance status and specific package marking details against the datasheet prior to integration. Ensure supply chain sources provide valid traceability records to mitigate counterfeit risks.

Triacs Selection Notes

Select this component when an 800 V blocking voltage and 25 A continuous current capacity are required in a surface-mount configuration. The TO-263AB-3 package is suitable for PCB mounting where space efficiency is prioritized over through-hole mechanical strength. Verify that the application's thermal management strategy can maintain the junction temperature below 150°C under full load conditions.

Triacs Part Context

This device belongs to the QJxx25xHx series of high-temperature thyristors from Littelfuse. The series is characterized by its ability to operate reliably at elevated temperatures without requiring external snubber components. It serves as a specialized alternative to standard triacs in industrial and commercial power control environments.

Triacs Replacement Considerations

Direct substitutes within the same series include QJ8025LH4TP, which shares identical electrical ratings but utilizes a TO-220AB through-hole package. Designers must account for significant differences in footprint, thermal dissipation characteristics, and mounting requirements when transitioning between surface-mount and through-hole variants.