MAC4DSNT4G

Triacs Overview

The Littelfuse MAC4DSNT4G is a surface-mount TRIAC in the MAC4DSN series, housed in a DPAK-3 (TO-252) package. It features an 800 V peak repetitive off-state voltage and a 4.0 A RMS on-state current rating at 108°C case temperature. The device supports a junction temperature range of -40°C to +125°C with a maximum lead soldering temperature of 260°C. Key electrical characteristics include a peak on-state voltage of 1.6 V, a gate trigger current maximum of 10 mA across three quadrants, and a critical rate of rise of off-state voltage (dv/dt) of 50 V/µs at 125°C.

Triacs Feature Summary

• Passivated die construction for enhanced reliability and uniformity
• High immunity to commutating dv/dt with a rating of 50 V/µs at 125°C
• Low gate trigger current requirement of 10 mA maximum in three quadrants
• Epoxy compound meets UL 94 V-0 flammability rating

Triacs Applications

• Motor control circuits
• Process control systems
• Temperature regulation devices
• Light dimming applications
• Speed control mechanisms

Triacs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and shipping configuration. The datasheet indicates that the 'T4' suffix corresponds to tape and reel packaging containing 2500 units per reel. Ensure compatibility with Pb-free manufacturing processes if required by the assembly line specifications.

Triacs Selection Notes

Select this component when an 800 V blocking voltage is necessary for the application circuit. The 4.0 A RMS current rating defines the continuous load capacity at elevated case temperatures. Consider the low gate trigger current for efficient driver interface design and verify that the thermal resistance parameters align with the available heat sinking or PCB copper area constraints.

Triacs Part Context

This part belongs to the MAC4DSM and MAC4DSN family of thyristors designed for high-volume industrial and consumer electronics. The MAC4DSN variant specifically provides the higher 800 V blocking voltage capability compared to the 600 V MAC4DSM counterpart. Both share identical physical dimensions and thermal characteristics within the DPAK-3 surface mount footprint.

Triacs Replacement Considerations

The MAC4DSMT4G serves as a direct functional substitute within the same series, differing only in its lower 600 V voltage rating. Verify that the reduced blocking voltage of the replacement part remains sufficient for the peak line voltages present in the target circuit design.