Q2015L5

Triacs Overview

The Littelfuse Q2015L5 is a TECCOR brand Quadrac device, which integrates a triac and a diac trigger within a single package. This component serves as a bidirectional AC switch with gate control for either polarity of main terminal voltage. It features an RMS on-state current capacity of 20 A and a rated repetitive off-state voltage (VDRM) of 600 V. The device utilizes a TO-220 package style for through-hole mounting. Key electrical parameters include a holding current maximum of 70 mA, a gate trigger voltage of 2.5 V, and a gate trigger current range of 50 mA to 75 mA. It operates within a temperature range from -40°C to +125°C.

Triacs Feature Summary

• Integrates a diac trigger inside the same package as the triac to eliminate the need for discrete components.
• Provides noise immunity suitable for AC switching and phase control applications.
• Features glass-passivated junctions to ensure long-term device reliability and parameter stability.

Triacs Applications

• Speed controls
• Temperature modulation controls
• Lighting controls

Triacs Procurement Notes

Verify the specific ordering suffix against official Littelfuse documentation to confirm exact electrical characteristics and packaging details. Confirm RoHS compliance status and agency approvals required for the target market before finalizing procurement specifications.

Triacs Selection Notes

Select this component when an integrated triac-diac solution is required for AC phase control. Ensure the 600 V voltage rating and 20 A current capacity meet the circuit requirements. Verify that the TO-220 package fits the thermal and spatial constraints of the design.

Triacs Part Context

This part belongs to the Teccor Quadrac series developed by Littelfuse. These devices are designed to save assembly time and cost by combining a triac and diac. They are distinct from standard triacs by their internal triggering mechanism and are often used where noise immunity is critical in AC switching environments.

Triacs Replacement Considerations

Check for direct substitutes within the QxxxxLTx series or equivalent integrated triac-diac packages from other manufacturers. Ensure voltage, current, and package compatibility before substitution.

Triacs FAQ

What is the primary advantage of using a Quadrac device over a standard triac?

The Quadrac integrates a diac trigger inside the package, eliminating the need for external discrete components and saving assembly time.

Is the TO-220 package electrically isolated?

Yes, the TO-220 package is electrically isolated to 2500 V rms from the leads to the mounting surface.