MAC212A8

Triacs Overview

The MAC212A8 is a silicon bidirectional thyristor (Triac) designed for full-wave AC control applications. It features a peak repetitive off-state voltage of 600 V and an on-state RMS current rating of 12 A at a case temperature of +85°C. The device supports a peak non-repetitive surge current of 100 A and operates within a junction temperature range of -40°C to +125°C. Packaged in a rugged TO-220AB thermowatt construction, it offers low thermal resistance with a junction-to-case value of 2.0°C/W. Gate triggering is guaranteed across all four operating modes, ensuring reliable switching performance.

Triacs Feature Summary

• Guaranteed gate triggering in all four quadrants for versatile control circuit integration
• Diffused and glass passivated junctions ensure parameter uniformity and stability
• Rugged TO-220AB thermowatt construction provides high heat dissipation capability

Triacs Applications

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

Triacs Procurement Notes

Verify the specific ordering suffix when sourcing components. The standard designation MAC212A8D indicates a box quantity of 500 units. The suffix DG denotes a lead-free package variant, also supplied in boxes of 500 units. Confirm the exact part number against procurement requirements to ensure compliance with environmental specifications and packaging formats.

Triacs Selection Notes

Select this component for general-purpose AC power switching where 12 A RMS current handling is required. Ensure the application voltage does not exceed the 600 V blocking rating. Verify that the gate drive circuit can supply sufficient current, as the maximum gate trigger current reaches 75 mA in certain quadrants. Consider the thermal management requirements based on the specified junction-to-ambient thermal resistance.

Triacs Part Context

This Triac belongs to the MAC212 series, which includes variants with different voltage ratings such as the MAC212A10 rated for 800 V. Both devices share identical current ratings and physical packaging characteristics. The series is engineered for robust performance in industrial and consumer AC control environments requiring reliable solid-state switching capabilities.

Triacs Replacement Considerations

Direct replacements include the MAC212A10 for higher voltage applications. Other compatible options may include the MAC16CM or BTA216-600F, provided their electrical parameters meet or exceed the original design requirements. Always verify pinout compatibility and thermal characteristics before substitution.