MAC228A4

Triacs Overview

The MAC228A4G is a sensitive gate triac from the MAC228A series, designed for full-wave AC load control in industrial and consumer applications. It features an 800 V peak repetitive off-state voltage (VDRM/VRRM) and supports an RMS on-state current of 8.0 A at 80°C case temperature. The device handles a peak non-repetitive surge current of 80 A and operates within a junction temperature range of -40 to 110°C. Electrical characteristics include a maximum on-state voltage of 1.8 V, a holding current of 15 mA, and a typical gate trigger current of 5.0 mA. Packaged in a rugged TO-220 thermowall construction with center gate geometry, it ensures uniform current spreading and low thermal resistance.

Triacs Feature Summary

• Sensitive gate triggering capability supporting four-mode operation for versatile drive circuit compatibility
• Diffused and glass-passivated junctions engineered for parameter uniformity and operational stability
• Center gate geometry utilized to ensure uniform current spreading across the silicon die

Triacs Applications

• Appliance controls
• Heater controls
• Motor controls
• General power switching applications

Triacs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and shipping quantity. The standard bulk configuration utilizes a TO-220 package containing 500 units per bulk container. Confirm RoHS compliance status and Pb-Free designation requirements prior to finalizing procurement specifications.

Triacs Selection Notes

Select this component when an 800 V blocking voltage rating is required for AC load switching. Ensure the driving circuit can supply the specified gate trigger current of 5.0 mA. Verify that the application's thermal environment allows for the specified 8.0 A RMS current derating based on case temperature constraints.

Triacs Part Context

This part belongs to the MAC228A series of sensitive gate triacs manufactured by onsemi. The series includes variants with different voltage ratings, specifically the MAC228A6, MAC228A8, and MAC228A10, which offer 400 V, 600 V, and 800 V ratings respectively. All devices share identical current handling capabilities and physical packaging dimensions.

Triacs Replacement Considerations

Direct functional substitutes within the same series include the MAC228A6, MAC228A8, and MAC228A10. These alternatives provide higher voltage ratings while maintaining the same 8 A RMS current capacity and TO-220 package form factor.