MAC8NG

Triacs Overview

The Littelfuse MAC8NG is a bidirectional triac belonging to the MAC8N series, designed for general-purpose AC switching applications. It features an 80 A non-repetitive on-state current and an 800 V rated repetitive off-state voltage (VDRM). The device operates within a junction temperature range of -40°C to +125°C and utilizes a TO-220-3 through-hole package. Key electrical characteristics include a maximum holding current of 40 mA, a gate trigger voltage of 1.5 V, and a gate trigger current of 35 mA. The on-state voltage is specified at 1.6 V, with an off-state leakage current of 10 µA under VDRM conditions.

Triacs Feature Summary

• High power handling capability with 80 A surge rating for robust industrial switching
• Logic-compatible gate sensitivity allowing direct interface with microprocessor drivers
• Thermal resilience supporting operation in high-temperature environments up to 125°C

Triacs Applications

• Industrial motor speed control systems
• Solid-state relay implementations
• AC power regulation circuits

Triacs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging and variant selection. Confirm RoHS compliance status and REACH SVHC declarations prior to integration. Cross-reference the Littelfuse part number with authorized distributor catalogs to validate authenticity and traceability. Ensure the procurement channel provides valid component history documentation.

Triacs Selection Notes

Select this component when high current capacity and 800 V blocking voltage are required in a standard through-hole form factor. Evaluate the 35 mA gate trigger current against the driving circuit's output capabilities to ensure reliable turn-on. Consider the thermal management requirements associated with the TO-220-3 package for sustained load conditions. Compare against lower-current alternatives if system demands do not justify the 80 A surge rating.

Triacs Part Context

The MAC8NG is part of the broader MAC8N family of triacs manufactured by Littelfuse. This series is engineered for high-performance AC power control tasks. The device shares design lineage with other high-current thyristors in the Littelfuse portfolio, emphasizing reliability in demanding electrical environments. It serves as a critical switching element in power electronics architectures requiring robust bidirectional conduction.

Triacs Replacement Considerations

The MAC8SDG is listed as an alias for this part number. Verify pinout compatibility and parameter equivalence before substituting with generic equivalents from other manufacturers.