QK012NH5RP

Triacs Overview

The Littelfuse QK012NH5RP is a bidirectional triac thyristor designed for surface-mount applications. It features a rated repetitive off-state voltage (VDRM) of 1 kV and an on-state RMS current (It RMS) of 12 A. The device operates within a junction temperature range of -40°C to +125°C. 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. The on-state voltage is specified at 1.6 V, with a non-repetitive peak on-state current capability of 110 A or 120 A depending on the pulse width. Leakage current in the off-state is limited to 10 uA at VDRM.

Triacs Feature Summary

• High-voltage blocking capability suitable for demanding AC power control environments
• Robust thermal performance supporting operation up to 125°C junction temperature
• Standardized gate drive requirements facilitating integration with common control circuits

Triacs Applications

• Industrial motor speed control systems
• Solid-state relay modules requiring high voltage isolation
• AC power switching applications in harsh environments

Triacs Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or certified suppliers. Confirm RoHS and REACH compliance status via official documentation before integration. Ensure storage conditions maintain moisture sensitivity levels appropriate for SMD packages. Validate part markings against the manufacturer's datasheet specifications to prevent counterfeit substitution.

Triacs Selection Notes

Select this component when a 1 kV rating is required for AC load switching. Compare with the Q4012NH5RP if lower voltage tolerance suffices, as it shares similar current ratings but offers only 400 V blocking. Consider the Q8015N5RP for higher current needs despite its different gate characteristics. Ensure the SMTO-263-2 package fits the PCB layout constraints.

Triacs Part Context

This part belongs to the Qxx12xHx series of high-power triacs from Littelfuse. It shares the 12 A current rating with models like Q4012NH5RP but distinguishes itself through its 1 kV voltage rating. The series is engineered for reliability in industrial thyristor applications, offering consistent performance across varying thermal loads.

Triacs Replacement Considerations

Publicly confirmed substitutes include the Q4012NH5RP for lower voltage applications and the Q8015N5RP for higher current requirements. Verify pinout compatibility and thermal resistance differences before swapping. No direct 1:1 replacement exists for identical 1 kV/12 A specs in public catalogs without functional trade-offs.