QK010NH5TP

Triacs Overview

The Littelfuse QK010NH5TP is a bidirectional triac designed for high-voltage AC switching applications. It features a rated repetitive off-state voltage (VDRM) of 1 kV and an on-state RMS current (IT(RMS)) of 10 A. The device operates within a junction temperature range of -40°C to +125°C and utilizes an SMTO-263-2 surface-mount package. Key electrical characteristics 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.

Triacs Feature Summary

• High voltage blocking capability suitable for industrial AC control
• Surface mount construction for automated PCB assembly
• Low gate drive requirements for efficient triggering

Triacs Applications

• Industrial motor speed control systems
• Solid state relays for AC loads
• Lighting dimmer circuits

Triacs Procurement Notes

Verify the specific suffix against the manufacturer's latest datasheet to confirm pinout and thermal specifications. Ensure the ordering quantity aligns with the standard tube packaging configuration provided by Littelfuse. Cross-reference the component marking with official identification guides to prevent counterfeit substitution during procurement.

Triacs Selection Notes

Select this component when a 1 kV rating is required for AC line voltages up to approximately 700 VAC. The 10 A RMS current capacity supports moderate power loads. Verify that the SMTO-263-2 footprint matches the design layout and that the thermal management strategy accommodates the 125°C maximum junction temperature limit under expected load conditions.

Triacs Part Context

This part belongs to the Qxx10xHx series of high-speed triacs from Littelfuse. The series is characterized by improved dv/dt immunity and faster switching speeds compared to standard triacs. It shares the same physical package and basic current ratings as other variants in the QK010 family but offers optimized gate sensitivity for specific control circuit interfaces.

Triacs Replacement Considerations

Direct replacements include the QK010N5TP and QK012NH5TP from the same manufacturer. Verify that substitute parts match the 1 kV voltage rating and 10 A current requirement. Check if alternative packages are acceptable for the existing PCB footprint.