Q8004D4RP

Triacs Overview

The Littelfuse Q8004D4RP is a bidirectional triac from the Teccor Qxx04xx series, designed for AC switching and phase control applications. It features an RMS on-state current of 4 A and a rated repetitive peak off-state voltage (VDRM) of 800 V. The device operates within a junction temperature range of -40°C to +125°C and is housed in a surface-mount TO-252-3 package. Key electrical parameters include a maximum holding current of 30 mA, a gate trigger voltage of 2.5 V, and a gate trigger current ranging from 25 mA to 50 mA. Non-repetitive peak on-state currents are specified at 46 A and 55 A, with an on-state voltage of 1.6 V and a maximum leakage current of 10 µA.

Triacs Feature Summary

• Integrated glass-passivated junctions ensure long-term parameter stability and device reliability.
• Surface-mount TO-252-3 packaging facilitates automated assembly and compact circuit board layouts.
• High commutation robustness supports demanding AC switching environments.

Triacs Applications

• AC motor speed controls
• Solid-state relays
• Lighting dimmer circuits

Triacs Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number Q8004D4RP with official Littelfuse documentation. Confirm compliance with RoHS and REACH standards as indicated in the datasheet. Ensure the supplier provides valid traceability records to mitigate risks associated with counterfeit electronic components during procurement.

Triacs Selection Notes

Select this component when an 800 V blocking voltage and 4 A continuous current capacity are required in a surface-mount form factor. Verify that the application's gate drive circuit can supply the necessary 25 mA to 50 mA trigger current. Consider the thermal management requirements for the TO-252-3 package based on the specific power dissipation calculations for the intended load.

Triacs Part Context

This triac belongs to the Teccor Qxx04xx series, which offers various voltage and current ratings within the same package family. The 'D' suffix typically denotes specific voltage or current characteristics within the manufacturer's internal coding system. This component serves as a solid-state alternative to mechanical switches in low-to-medium power AC control systems.

Triacs Replacement Considerations

Direct replacements must match the 800 V rating, 4 A current capacity, and TO-252-3 package. Verify equivalent gate trigger specifications and thermal performance characteristics before substitution.