MAC212A10G

Triacs Overview

The Littelfuse MAC212A10G is a bidirectional thyristor (triac) designed for full-wave AC control applications. It features an 800V peak repetitive off-state voltage and handles a 12A RMS on-state current at 85°C case temperature. The device supports a 100A non-repetitive surge current and operates within a junction temperature range of -40°C to +125°C. Packaged in a TO-220AB thermowall construction, it offers low thermal resistance and high heat dissipation capabilities. The component utilizes diffused and glass-passivated junctions to ensure parameter uniformity and stability across four triggering quadrants.

Triacs Feature Summary

• Four-quadrant gate triggering capability ensures reliable switching for either polarity of applied main terminal voltage.
• Thermowall construction provides rugged durability with low thermal resistance for efficient heat dissipation.
• Glass-passivated junctions enhance parameter uniformity and long-term device stability.

Triacs Applications

• Light dimmers
• Motor controls
• Heating controls
• Power supplies

Triacs Procurement Notes

Verify the specific ordering suffix 'G' indicates a lead-free package configuration as documented in the manufacturer's datasheet. Confirm that the selected variant matches the required blocking voltage rating of 800V for the intended circuit design. Ensure compliance with RoHS directives if applicable to the manufacturing region. Cross-reference the part number against the latest Littelfuse documentation to confirm current production status and availability.

Triacs Selection Notes

Select this component when designing circuits requiring robust AC phase control or solid-state switching. The 12A RMS rating suits moderate power loads, while the 800V breakdown voltage accommodates standard line voltages. Consider the TO-220AB package for through-hole mounting and effective thermal management via heatsinking. Evaluate the gate trigger characteristics to ensure compatibility with the driving logic levels in the application.

Triacs Part Context

This triac belongs to the MAC212 series, which includes variants with different blocking voltage ratings such as the MAC212A8 rated at 600V. Both share identical current handling and physical packaging specifications. The series is engineered for general-purpose AC control tasks where reliability and thermal performance are critical. The 'G' suffix specifically denotes the lead-free environmental compliance of the package materials.

Triacs Replacement Considerations

Direct substitutes include other 12A, 800V triacs in TO-220AB packages from Littelfuse or compatible manufacturers. Verify equivalent electrical parameters, particularly holding current and gate trigger thresholds, before implementation. Ensure the replacement device meets the same thermal resistance and surge current requirements to maintain system integrity.