QJ8010R4TP

Triacs Overview

The Littelfuse QJ8010R4TP is a standard TRIAC from the QJxx10xx series, rated for 10 A RMS on-state current and 800 V repetitive peak off-state voltage. It utilizes a non-isolated TO-220AB (R-Package) through-hole configuration with three terminals: MT1, MT2, and Gate. The device supports operation in Quadrants I, II, III, and IV, featuring a maximum gate trigger current of 50 mA in Quadrant IV and 25 mA in other quadrants. It operates within a junction temperature range of -40°C to +150°C, offering a peak non-repetitive surge current capability of 120 A at 60 Hz.

Triacs Feature Summary

• Standard TRIAC functionality supporting triggering across all four operating quadrants for versatile AC line control.
• High thermal stability with a maximum junction temperature rating of 150°C for demanding environments.
• Robust surge handling capability up to 120 A to withstand transient load conditions.
• Glass-passivated junctions designed to enhance reliability and protect against environmental factors.

Triacs Applications

• AC solid-state switching and phase control circuits
• Heating element control systems
• Lighting dimmers and controls
• Motor speed control applications

Triacs Procurement Notes

Verify the specific package variant and sensitivity class during sourcing. Confirm that the non-isolated tab design aligns with the system's electrical isolation requirements. Ensure the ordering suffix matches the desired packaging format. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing component selection.

Triacs Selection Notes

Select this component when high commutation performance is not the primary requirement, as it is a standard TRIAC rather than an Alternistor. Verify that the circuit can accommodate the higher gate trigger currents compared to sensitive gate devices. Ensure adequate heat sinking is provided to maintain the junction temperature below the 150°C limit under continuous load conditions.

Triacs Part Context

This part belongs to the QJxx10xx series of 10 A High Temperature Standard TRIACs. It shares the same core silicon characteristics as the Alternistor variants but lacks the optimized Quadrant III performance. The 'R' designation specifically identifies the non-isolated TO-220AB mounting style common in general-purpose power electronics.

Triacs Replacement Considerations

QJ8010L4TP offers identical electrical ratings in an electrically isolated TO-220 package. QJ8010N4TP provides the same specifications in a surface-mount D2PAK form factor. For applications requiring superior Quadrant III commutation, consider the Alternistor variants such as QJ8010RH4TP.

Triacs FAQ

Does the QJ8010R4TP operate in all four quadrants?

Yes, the QJ8010R4TP is a standard TRIAC capable of operating in Quadrants I, II, III, and IV.

What is the maximum junction temperature for this device?

The maximum operating junction temperature is 150°C.

Is the mounting tab electrically isolated?

No, the R-Package indicates a non-isolated mounting tab where the tab is connected to MT2.