Q6015L556

Triacs Overview

The Littelfuse Q6015L556 is a single-phase triac designed for AC switching and phase control applications. It features a TO-220AB through-hole package with three pins. The device has a rated average on-state current (Irms) of 15 A and a repetitive peak reverse voltage of 600 V. Key electrical parameters include a maximum gate trigger current (Igt) of 50 mA, a maximum gate trigger voltage (Vgt) of 2 V, and a peak on-state voltage of 1.6 V. The surge current rating is 200 A, with a maximum holding current of 70 mA. It operates within a temperature range of -40°C to +125°C.

Triacs Feature Summary

• Integrated glass-passivated junctions for long-term reliability and parameter stability
• Electrically isolated TO-220 package eliminating the need for external insulators
• High noise immunity suitable for demanding AC switching environments

Triacs Applications

• AC speed controls
• Temperature modulation controls
• Lighting controls requiring noise immunity

Triacs Procurement Notes

Verify the specific suffix '556' against official Littelfuse documentation to confirm pinout and exact electrical tolerances. Ensure the ordering suffix matches the required package variant. Confirm RoHS compliance status directly from the manufacturer's datasheet before procurement.

Triacs Selection Notes

Select this component for high-current AC phase control where robust thermal performance is required. The 15A rating supports substantial loads. Verify that the 600V blocking voltage aligns with the system's peak line voltage. Consider the TO-220 package dimensions for PCB layout and heatsinking requirements.

Triacs Part Context

This part belongs to the Teccor QxxxxLTx series of triacs manufactured by Littelfuse. These devices are engineered for general-purpose AC switching. The series offers various current and voltage ratings within the same package family, allowing for design flexibility across different power levels while maintaining consistent mechanical footprints.

Triacs Replacement Considerations

Direct substitutes may include other 15A, 600V triacs in TO-220 packages from manufacturers like STMicroelectronics or Vishay. Verify equivalent Igt, Vtm, and thermal characteristics. Cross-reference pinouts to ensure compatibility without circuit modification.