SZNUD3112LT1G

Overview

The SZNUD3112LT1G is an integrated load and relay driver manufactured by onsemi, housed in a SOT-23 package. It is designed to switch inductive loads such as relays, solenoids, incandescent lamps, and small DC motors without requiring external freewheeling diodes. The device integrates a MOSFET switch, ESD protection, and a Zener clamp. It accepts logic-level inputs for direct driving from logic gates, inverters, or microcontrollers.

Feature Summary

• Integrated MOSFET switch with built-in ESD protection and Zener clamp eliminates the need for external components.
• Logic-level input compatibility allows direct interfacing with standard logic gates, inverters, and microcontrollers.
• Designed for switching inductive loads including relays, solenoids, incandescent lamps, and small DC motors.

Applications

• Relay switching
• Solenoid control
• Incandescent lamp driving
• Small DC motor control

Procurement Notes

Verify the specific suffix 'SZ' against official onsemi documentation to confirm it denotes a specific automotive or qualified variant distinct from the standard NUD3112LT1G. Ensure the SOT-23 package marking matches the datasheet specifications. Confirm RoHS compliance status through the manufacturer's current product status page before finalizing procurement.

Selection Notes

Select this component when space constraints require a compact SOT-23 footprint for low-voltage inductive load switching. It is suitable for applications where eliminating external flyback diodes simplifies the PCB layout. Choose based on logic voltage compatibility and the requirement for integrated overvoltage and ESD protection within a single small outline transistor package.

Part Context

This part belongs to onsemi's family of integrated load drivers, specifically the NUD3112 series. These devices are categorized under signal conditioning and control products, targeting industrial, automotive, and consumer electronics markets. The series provides a consolidated solution for managing inductive loads, replacing discrete MOSFET and diode configurations.

Replacement Considerations

NUD3112LT1G