Q4015R5

Triacs Overview

The Littelfuse Q4015R5 is a bidirectional triac designed for AC power control applications. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (IT(RMS)) of 15 A. The device supports non-repetitive peak on-state currents of 167 A or 200 A depending on the half-cycle duration. Gate triggering specifications include a maximum gate trigger voltage (VGT) of 2.5 V and a gate trigger current (IGT) of 50 mA. The component operates within a junction temperature range of -40°C to +125°C and utilizes a TO-220-2 through-hole package.

Triacs Feature Summary

• Provides bidirectional switching capability for alternating current loads
• Engineered with high thermal stability for operation up to +125°C
• Designed for robust performance under high surge current conditions

Triacs Applications

• General purpose AC power switching circuits
• Solid state relay implementations
• Lighting dimmer controls

Triacs Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number Q4015R5 with official Littelfuse documentation. Confirm that the physical marking on the device matches the specified model identifier. Ensure the package type corresponds to the TO-220-2 form factor required for the intended circuit board layout before finalizing acquisition.

Triacs Selection Notes

Select this component when a 400 V blocking voltage and 15 A continuous current rating are required in a through-hole configuration. Evaluate the gate trigger current of 50 mA against the driving circuit capabilities to ensure reliable turn-on. Consider the thermal management requirements associated with the TO-220-2 package for the specific application environment.

Triacs Part Context

This triac belongs to the Littelfuse Teccor family of thyristors, which are widely utilized in industrial and consumer electronics for AC regulation. The Q-series designation typically indicates standard switching characteristics suitable for general-purpose applications rather than specialized high-speed or high-temperature variants found in other product lines.

Triacs Replacement Considerations

Potential substitutes include the Q4015L5TP and Q4015LTTP, which share similar electrical ratings but may differ in gate sensitivity or leakage current specifications. Verify pinout compatibility and thermal resistance values before implementing any alternative component in an existing design.