MAC15NG

Triacs Overview

The Littelfuse MAC15NG is a Pb-free, RoHS-compliant TRIAC housed in an industry-standard TO-220AB package. It offers a peak repetitive off-state voltage of 800 V and an on-state RMS current rating of 15 A at 80°C case temperature. The device supports operation in quadrants Q1, Q2, and Q3 with uniform gate trigger currents across all modes. Key electrical characteristics include a minimum critical rate of rise of off-state voltage (dv/dt) of 250 V/µs at 125°C and a high commutating di/dt of 9.0 A/ms minimum at 125°C. The junction temperature range spans from -40°C to +125°C.

Triacs Feature Summary

• High noise immunity with a minimum dv/dt rating of 250 V/µs at elevated temperatures
• Uniform gate trigger currents provided across three operating modes
• High commutating di/dt capability minimizes the need for snubber networks
• Operational in Quadrants 1, 2, and 3 for versatile AC control

Triacs Applications

• High performance full-wave AC control applications
• Industrial motor speed controls requiring high noise immunity
• Lighting dimmer circuits demanding high commutating di/dt
• Heater control systems utilizing robust TRIAC switching

Triacs Procurement Notes

Verify the specific ordering suffix 'G' confirms the Pb-free and RoHS compliant status as documented in the official Littelfuse datasheet. Ensure the component matches the MAC15N variant with an 800V blocking voltage rating rather than the MAC15M 600V version. Confirm the TO-220AB package style aligns with thermal management requirements for the intended application environment.

Triacs Selection Notes

Select this component when an 800V blocking voltage is required alongside a 15A RMS current capacity. The MAC15NG is suitable for designs needing high immunity to voltage transients, specifically where a dv/dt rating of 250 V/µs is necessary to reduce snubber complexity. Verify that the gate trigger current specifications meet the driving circuit capabilities across all three operational quadrants.

Triacs Part Context

The MAC15NG belongs to the MAC15 series of TRIACs manufactured by Littelfuse Inc. This series includes variants with different voltage ratings, such as the MAC15M rated for 600V. The MAC15NG specifically denotes the 800V blocking voltage version within this family, sharing identical current ratings and package dimensions with its lower-voltage counterpart.

Triacs Replacement Considerations

Direct functional substitutes within the same voltage and current class should be verified against the official Littelfuse documentation. Cross-referencing pinouts and thermal resistance values is essential when replacing with components from other manufacturers to ensure compatibility with existing PCB layouts and heat sinking solutions.