STL55NH3LL

Single FETs, MOSFETs Overview

The STL55NH3LL is a single N-channel enhancement mode MOSFET manufactured by STMicroelectronics using silicon planar technology. It features a 30 V drain-source breakdown voltage and supports a continuous drain current of 55 A. The device exhibits a maximum on-resistance of 8.8 mΩ at room temperature. It operates within a junction temperature range of -55 °C to +150 °C and handles up to 60 W of power dissipation. The gate-source voltage limits are defined as ±16 V. Switching characteristics include a typical turn-on delay of 18 ns, rise time of 32 ns, fall time of 8.5 ns, and turn-off delay of 18 ns. The component is housed in a PowerFLAT-5x6-8 surface-mount package.

Single FETs, MOSFETs Feature Summary

• Utilizes silicon planar technology for robust performance and reliability
• Designed for high-current switching applications with low conduction losses
• Integrated thermal protection mechanisms for safe operation under overload conditions

Single FETs, MOSFETs Applications

• Automotive load switching systems
• DC-DC converter circuits
• Motor control interfaces

Single FETs, MOSFETs Procurement Notes

Verify the specific ordering suffix against the official datasheet to ensure correct packaging and tape-and-reel specifications. Confirm RoHS compliance status directly from the manufacturer's documentation before integration. Check for any recent lifecycle updates or obsolescence notices, as availability may vary across regions. Ensure the selected variant matches the required PowerFLAT-5x6-8 footprint for PCB layout compatibility.

Single FETs, MOSFETs Selection Notes

Select this component when a low-voltage, high-current N-channel switch is required for automotive or industrial environments. The 30 V rating suits 12 V and 24 V system architectures. Evaluate thermal management requirements based on the 60 W power dissipation limit and the specific ambient operating conditions. Ensure the gate drive voltage remains within the ±16 V absolute maximum ratings to prevent device damage.

Single FETs, MOSFETs Part Context

This part belongs to the STL series of power MOSFETs from STMicroelectronics, designed for efficient power management in compact form factors. The PowerFLAT package provides enhanced thermal performance compared to traditional leaded packages. It serves as a discrete solution for replacing integrated power stages in cost-sensitive designs requiring high efficiency and reliable switching behavior.

Single FETs, MOSFETs Replacement Considerations

Consult the official STMicroelectronics replacement guide for verified cross-reference part numbers. Do not assume functional equivalence with other N-channel MOSFETs without verifying pinout, voltage ratings, and thermal characteristics against the original specification sheet.