Q4004V3TP

Triacs Overview

The Littelfuse Q4004V3TP is a bidirectional triac from the Teccor Qxx04xx series, designed for AC switching and phase control applications. It features a 4 A RMS on-state current rating and a 400 V repetitive peak off-state voltage (VDRM). The device operates within a junction temperature range of -40°C to +125°C and is housed in a TO-251-3 (SOT-143) surface-mount package. Key electrical parameters include a maximum holding current of 20 mA, a gate trigger voltage of 2 V, and a gate trigger current ranging from 10 mA to 25 mA. It exhibits a low on-state voltage of 1.6 V and a leakage current of 10 µA at rated voltage.

Triacs Feature Summary

• Integrated glass-passivated junctions ensure long-term parameter stability and device reliability.
• Surface-mount TO-251-3 package design facilitates automated assembly and space-efficient PCB layouts.
• Bidirectional switching capability allows for control of AC loads with either polarity of main terminal voltage.

Triacs Applications

• AC motor speed controls
• Lighting dimmer circuits
• Temperature modulation controllers

Triacs Procurement Notes

Verify the specific suffix 'TP' against the manufacturer's latest datasheet to confirm packaging details and compliance status. Ensure the procurement channel provides authentic Littelfuse components to avoid counterfeit devices. Cross-reference the Mouser part number 576-Q4004V3TP for accurate sourcing information.

Triacs Selection Notes

Select this component when a surface-mount triac with 4 A current handling and 400 V blocking voltage is required. The TO-251-3 package is suitable for applications where board space is limited compared to through-hole options. Verify that the gate drive circuit can supply the specified 10 mA to 25 mA trigger current reliably across the operating temperature range.

Triacs Part Context

This part belongs to the Teccor Qxx04xx series of triacs manufactured by Littelfuse. The series offers various voltage ratings and current capacities in different packages. The Q4004V3TP specifically addresses the need for compact, surface-mount AC control solutions in consumer and industrial electronics.

Triacs Replacement Considerations

Direct pin-compatible replacements may include other 4 A, 400 V triacs in SOT-143 packages from Littelfuse or competitors. Verify gate sensitivity and thermal characteristics before substitution. No specific substitute part numbers are confirmed in the provided documentation.