NIF5003NT1

Overview

The NIF5003NT1 is a self-protected N-channel power distribution switch manufactured by onsemi. It integrates a MOSFET with thermal and current limiting protection in a SOT-223 package. Key electrical parameters include a drain-source voltage (Vds) of 42 V, continuous drain current (Id) of 14 A, and a maximum on-resistance (Rds(on)) of 53 mΩ at Vgs = 10 V. The device operates within a temperature range of -55°C to +150°C and features a gate-source voltage rating of 14 V.

Feature Summary

• Integrates self-protection mechanisms for over-temperature and over-current conditions
• Provides single-channel N-channel power switching capability
• Designed for low on-resistance performance in compact surface-mount packages

Applications

• Power distribution systems requiring load protection
• Peripheral power switching in consumer electronics
• Industrial control circuits needing integrated fault protection

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and tape/reel specifications. Check for obsolescence status as this part may be discontinued. Request original datasheets and certification documents to ensure compliance with RoHS and other regulatory standards before finalizing procurement decisions.

Selection Notes

Select this component when a compact solution with integrated thermal and current protection is required for low-voltage DC loads. Ensure the 42 V breakdown voltage and 14 A current capacity meet system requirements. Verify that the SOT-223 package fits the PCB layout constraints. Consider the 53 mΩ on-resistance for power loss calculations in high-current applications.

Part Context

This component belongs to onsemi's family of self-protected power switches. It is designed to simplify circuit design by combining switching and protection functions. The NIF5003 series offers a robust alternative to discrete MOSFETs with external protection components, reducing board space and assembly complexity in power management applications.

Replacement Considerations

Public sources indicate the NIF5003NT1 is obsolete. Available substitutes are not explicitly listed in the provided documentation. Consult onsemi directly for recommended replacement parts or updated product line information.