Q8025K6TP

Triacs Overview

The Littelfuse Q8025K6TP is an Alternistor bidirectional triac designed for high-power AC switching applications. It features a rated repetitive off-state voltage (VDRM) of 800 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-218 through-hole package. Key electrical parameters include a gate trigger voltage (VGT) of 2.5 V, a gate trigger current (IGT) of 80 mA, and a maximum holding current (Ih) of 100 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 pulse width.

Triacs Feature Summary

• Alternistor technology provides enhanced noise immunity and dv/dt rating compared to standard triacs.
• Electrically isolated construction allows direct mounting to heatsinks without external insulators.
• Glass-passivated junctions ensure long-term parameter stability and reliability.

Triacs Applications

• Industrial motor speed controls
• High-power lighting dimmers
• Solid-state relays

Triacs Procurement Notes

Verify the specific suffix 'K6' against the manufacturer's latest datasheet to confirm pinout orientation and thermal characteristics. Ensure the ordering quantity aligns with the factory tube packaging requirements. Confirm RoHS compliance status via the official Littelfuse documentation before finalizing procurement specifications.

Triacs Selection Notes

Select this component when an 800 V blocking voltage and 25 A continuous current are required in an isolated package. The Alternistor architecture is suitable for noisy environments requiring high dv/dt immunity. Compare with the Q8025J6TP variant if different gate sensitivity or manufacturing lot specifications are needed for the same electrical ratings.

Triacs Part Context

This part belongs to the Littelfuse Qxx25xx series of Alternistors. These devices combine the functionality of a triac with integrated diac triggering characteristics, simplifying circuit design by eliminating the need for external snubber networks or discrete diacs in many phase-control applications.

Triacs Replacement Considerations

The Q8025J6TP is a verified substitute within the same series offering identical 800 V / 25 A ratings and SMTO-218 packaging. Verify that any alternative from other manufacturers matches the 80 mA gate trigger current and isolated tab configuration.