STK38N3LLH5

Single FETs, MOSFETs Overview

The STK38N3LLH5 is an N-channel Power MOSFET developed using STMicroelectronics’ PolarPAK® and STripFET™ V technology. It features a drain-source voltage (Vdss) of 30 V and a continuous drain current (Id) of 38 A at case temperature. The device achieves a typical on-state resistance (RDS(on)) of 1.3 mΩ at VGS = 10 V, with a gate charge product of 70.9 nC·mΩ.

Single FETs, MOSFETs Feature Summary

• Developed using PolarPAK® and STripFET™ V technology for optimized performance
• Achieves very low on-state resistance contributing to industry benchmark figures of merit
• Designed for high avalanche ruggedness and reliability

Single FETs, MOSFETs Applications

• Automotive power management systems
• DC-DC converter circuits
• Motor control applications

Single FETs, MOSFETs Procurement Notes

Verify the specific suffix and package variant when ordering, as STMicroelectronics may offer multiple configurations within the same base part number family. Confirm that the component meets the required AEC-Q101 automotive qualification standards if intended for automotive-grade deployments. Ensure compatibility with the target PCB footprint for the PolarPAK package before finalizing procurement specifications.

Single FETs, MOSFETs Selection Notes

Select this component for applications requiring a balance of low conduction losses and robust switching performance in a compact form factor. The 30 V rating suits low-voltage DC bus applications. Consider the thermal characteristics of the PolarPAK package for heat dissipation requirements. Evaluate the gate charge metrics against driver capabilities to ensure efficient switching transitions in the target circuit design.

Single FETs, MOSFETs Part Context

This part belongs to STMicroelectronics' STripFET™ V series, which utilizes advanced trench gate technology to minimize on-resistance while maintaining low gate charge. The PolarPAK packaging provides enhanced thermal performance and electrical efficiency compared to traditional packages, supporting higher current densities in space-constrained designs.

Single FETs, MOSFETs Replacement Considerations

Direct replacements should be sought from the same STripFET™ V family with matching RDS(on) and Id ratings. Verify pinout compatibility and thermal pad configuration to ensure seamless integration without PCB redesign.