QK025NH6RP

Triacs Overview

The Littelfuse QK025NH6RP is a high-reliability Alternistor TRIAC designed for robust AC switching applications. It features a rated repetitive off-state voltage (VDRM) of 1000 V and an on-state RMS current (ITRMS) of 25 A. The device operates within a 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 100 mA, a gate trigger voltage of 1.3 V, and a gate trigger current of 80 mA. It exhibits a typical on-state voltage of 1.8 V and a non-repetitive peak on-state current capability of 208 A or 250 A depending on the specific test condition.

Triacs Feature Summary

• High dv/dt rating of 400 V/µs ensures reliable commutation in noisy environments without requiring external snubber networks.
• Glass-passivated junctions provide long-term parameter stability and enhanced durability against environmental stress.
• Integrated heat sink tab facilitates efficient thermal management in compact surface-mount designs.

Triacs Applications

• Industrial motor speed controls
• Solid-state relays
• High-voltage AC power switching circuits

Triacs Procurement Notes

Verify the complete part number including suffixes to ensure correct packaging and compliance specifications. Confirm RoHS status and REACH SVHC declarations with the manufacturer prior to order placement. Ensure supply chain partners are authorized distributors to guarantee component authenticity and traceability throughout the procurement process.

Triacs Selection Notes

Select this component when a 1000 V blocking voltage and 25 A continuous current capacity are required in a surface-mount form factor. The high dv/dt sensitivity makes it suitable for direct drive applications where snubber circuitry is undesirable. Verify that the gate drive circuit can supply at least 80 mA to ensure reliable triggering across the full operating temperature range.

Triacs Part Context

This device belongs to the QK series of Alternistor TRIACs from Littelfuse. These components are engineered as high-performance replacements for traditional triacs in demanding industrial applications. The series emphasizes high reliability and noise immunity, distinguishing itself through superior commutation capabilities compared to standard thyristor devices.

Triacs Replacement Considerations

Direct pin-compatible substitutes may exist within the same QK family, such as QK025NH6TP, though package variations must be verified. Cross-reference datasheets for exact electrical parameters before substitution. Ensure any replacement maintains the 1000 V rating and compatible gate drive requirements.