Q4025K6TP

Triacs Overview

The Littelfuse Q4025K6TP is a bidirectional triac in the Qxx25xx series, rated for 400 V repetitive peak off-state voltage and 25 A RMS on-state current. It utilizes an isolated gate structure requiring 80 mA gate trigger current and 2.5 V gate trigger voltage, with a maximum holding current of 100 mA. The device features a non-repetitive surge current rating of 208 A or 250 A and a low on-state voltage of 1.8 V. Designed for through-hole mounting in an SMTO-218 package, it operates within a temperature range of -40 °C to +125 °C.

Triacs Feature Summary

• Isolated gate architecture for enhanced noise immunity
• High thermal stability across extended industrial temperature ranges
• Robust surge handling capability for demanding power applications

Triacs Applications

• AC motor speed control systems
• Solid-state relay implementations
• Industrial heating element regulation

Triacs Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number Q4025K6TP with official Littelfuse documentation. Ensure the received units match the specified SMTO-218 package and electrical ratings. Confirm compliance with relevant environmental standards such as RoHS before integration into final assemblies.

Triacs Selection Notes

Select this component when a 400 V blocking voltage and 25 A continuous current capacity are required. The isolated gate design distinguishes it from standard triacs, offering improved performance in noisy environments. Consider the SMTO-218 package constraints for thermal management and PCB layout requirements during the design phase.

Triacs Part Context

This triac belongs to the Qxx25xx family, which shares common current ratings but varies in voltage blocking capabilities. While similar models like the Q8025K6TP offer higher voltage ratings, the Q4025K6TP is specifically optimized for lower voltage AC switching applications requiring high reliability and isolation.

Triacs Replacement Considerations

Direct substitutes include other Littelfuse triacs with identical 400 V, 25 A ratings and isolated gate structures. Verify pinout compatibility and thermal resistance values when replacing with components from other manufacturers to ensure circuit integrity.