MAC16NG

Triacs Overview

The Littelfuse MAC16NG is a three-terminal triac designed for high-performance full-wave AC control applications. It features an on-state current rating of 16 Amperes RMS at 80°C and supports peak repetitive off-state voltages up to 800 Volts. The device operates within a junction temperature range of -40°C to +125°C and withstands peak non-repetitive surge currents of 150 Amperes. It utilizes an industry-standard TO-220 package (Case 221A) with four mounting holes, ensuring compatibility with standard heatsinking solutions.

Triacs Feature Summary

• High commutating di/dt capability minimizes the need for snubber networks in protection circuits
• Uniform gate trigger currents across three quadrants ensure reliable switching performance
• High immunity to dv/dt reduces false triggering in noisy environments

Triacs Applications

• Full-wave AC control systems requiring high noise immunity
• Solid-state relays and motor speed controls
• Industrial heating and lighting dimmer circuits

Triacs Procurement Notes

Verify the specific voltage variant required, as the MAC16 series includes DG (400V), MG (600V), and NG (800V) options. Confirm that the application environment remains within the specified thermal limits for the 16A RMS rating. Ensure the TO-220AB footprint matches the PCB layout constraints before finalizing procurement orders.

Triacs Selection Notes

Select the MAC16NG when blocking voltages reach 800V and high commutating di/dt is critical. Compare against lower voltage variants if system requirements allow, as they may offer different thermal characteristics. Verify that the gate trigger current specifications align with the driving circuit capabilities to ensure proper turn-on under all operating conditions.

Triacs Part Context

The MAC16NG belongs to the MAC16 Series of thyristors manufactured by Littelfuse. This series is engineered specifically for robust AC power control where reliability and noise immunity are paramount. The component shares the same physical package and general electrical structure with the MAC16DG and MAC16MG, differing primarily in its maximum repetitive off-state voltage rating.

Triacs Replacement Considerations

Direct replacements include the MAC16MG (600V) or MAC16DG (400V) if the system voltage allows for derating. Other generic TO-220 triacs with matching 16A RMS and 800V ratings may be considered, provided their gate trigger parameters and thermal resistance values meet the original design specifications.