MAC228A4G

Triacs Overview

The MAC228A4G is a bidirectional triac manufactured by Littelfuse, designed for AC power control applications. It features an 80 A non-repetitive peak on-state current and a rated repetitive off-state voltage (VDRM) of 200 V. The device exhibits a maximum holding current of 15 mA and requires a gate trigger voltage of 2.5 V with a gate trigger current of 10 mA. Operating within a temperature range of -40°C to +110°C, it utilizes a TO-220-3 through-hole package. The component includes glass-passivated junctions for reliability and offers low leakage current of 10 uA at VDRM.

Triacs Feature Summary

• Sensitive gate structure enabling reliable triggering with low gate current requirements
• Glass-passivated junctions ensuring long-term parameter stability and device reliability
• Integrated thermal management capabilities suitable for high surge current loads

Triacs Applications

• AC motor speed controls
• Temperature modulation systems
• Lighting dimmer circuits

Triacs Procurement Notes

Verify the specific suffix 'G' indicates RoHS compliance status as per manufacturer documentation. Confirm the package type matches the required TO-220-3 footprint for PCB integration. Ensure the 200 V voltage rating aligns with the target circuit's peak reverse voltage requirements before finalizing procurement specifications.

Triacs Selection Notes

Select this component when a 200 V blocking voltage is sufficient for the AC line application. The 8 A RMS current rating supports moderate load switching needs. Consider the TO-220-3 package for efficient heat dissipation compared to smaller surface-mount alternatives in high-power scenarios.

Triacs Part Context

This part belongs to the MAC228A series of sensitive gate triacs from Littelfuse. It shares structural similarities with the MAC228A10G but differs primarily in its lower 200 V voltage rating compared to the 800 V variant. Both devices utilize the same TO-220-3 package and similar electrical characteristics for gate triggering.

Triacs Replacement Considerations

The MAC228A10G is documented as an alias or alternative part number for this series, though it specifies an 800 V rating instead of 200 V. Verify voltage compatibility carefully before substitution. Other generic 8 A, 200 V triacs in TO-220 packages may serve as functional equivalents if electrical parameters match exactly.