MDC3105DMT1G

Overview

The MDC3105DMT1G is an integrated relay and inductive load driver manufactured by onsemi. It is designed to control high-current loads such as relays, solenoids, and lamps directly from low-voltage logic inputs. The device features a single N-channel output capable of handling continuous currents up to 2A with a peak current capability of 4A. It operates within a supply voltage range of 2.7V to 5.5V and includes built-in protection against reverse polarity and over-temperature conditions. The component is housed in a compact SC-74 package.

Feature Summary

• Integrated N-channel power switch for direct drive of inductive loads
• Built-in thermal shutdown and reverse polarity protection
• Logic-compatible input interface for easy microcontroller integration

Applications

• Automotive body electronics modules
• Industrial control systems requiring relay actuation
• Consumer appliances with solenoid or lamp drivers

Procurement Notes

Verify the exact part number suffix, as 'MDC3105DMT1G' may be a specific ordering code distinct from the base 'MDC3105'. Confirm RoHS compliance status and lead times with authorized distributors. Ensure the procurement channel provides valid traceability documentation for automotive or industrial applications.

Selection Notes

Select this component when a single-channel, high-current driver is needed for inductive loads like relays or solenoids. It is suitable for 5V logic systems requiring integrated protection features. Consider alternative packages if higher pin counts or different thermal performance are required.

Part Context

This part belongs to onsemi's family of integrated load drivers. It simplifies circuit design by combining the driver transistor and protection diodes into a single surface-mount package. It serves as a drop-in replacement for discrete transistor solutions in space-constrained designs.

Replacement Considerations

Check for equivalents such as the NUD3105 series or DRDC3105 from other manufacturers. Verify pin compatibility and electrical specifications before substitution.