QK016RH4TP

Triacs Overview

The Littelfuse QK016RH4TP is a bidirectional triac belonging to the Qxx16xHx series, designed for high-power AC switching applications. It features a 1 kV rated repetitive off-state voltage (VDRM) and supports an on-state RMS current (IT(RMS)) of 16 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 on-state voltage of 1.6 V, a gate trigger voltage (VGT) of 2 V, and a gate trigger current (IGT) of 35 mA. Leakage current in the off-state is specified at 5 µA under VDRM conditions.

Triacs Feature Summary

• High-voltage blocking capability with 1 kV rating suitable for industrial mains applications
• Surface-mount construction in SMTO-263-2 package for automated PCB assembly
• Robust thermal performance supporting operation up to +125°C junction temperature

Triacs Applications

• Industrial motor control systems requiring high-voltage AC switching
• Solid-state relays and contactor replacement circuits
• Power regulation units for heating elements and resistive loads

Triacs Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or certified suppliers. Confirm RoHS compliance status via official datasheets prior to integration. Ensure storage conditions maintain moisture sensitivity levels appropriate for surface-mount devices. Validate part markings against manufacturer specifications to prevent counterfeit infiltration during supply chain acquisition.

Triacs Selection Notes

Select this component when a 16 A RMS current capacity and 1 kV voltage rating are required in a surface-mount form factor. Compare gate trigger requirements against driving circuit capabilities, noting the 35 mA IGT specification. Evaluate thermal management needs given the 125°C maximum operating temperature limit. Consider alternative packages if through-hole mounting is preferred for mechanical stability.

Triacs Part Context

This triac belongs to the Qxx16xHx family from Littelfuse, which standardizes 16 A current ratings across various voltage and packaging options. The QK016RH4TP specifically adapts this performance profile for surface-mount technology, distinguishing it from through-hole variants like the QK016RH4. This series targets applications demanding reliable AC power control in compact electronic designs.

Triacs Replacement Considerations

Direct pin-compatible replacements may include other 16 A, 1 kV triacs in SMTO-263-2 packages from Littelfuse or competitors. Verify equivalent gate trigger currents and holding currents before substitution. Cross-reference thermal resistance values to ensure adequate heat dissipation in the target application environment.