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NTMFS4C05N

40V N-ch MOSFET, 118A, 3.2mOhm, Power33, onsemi ultra-low RDS(ON)

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Manufacturer Part：

NTMFS4C05N

Package：

Power33 (3.3 x 3.3 x 0.8mm, exposed pad)

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Description

Product Overview

The onsemi NTMFS4C05N is a 40V N-channel power MOSFET in Power33 (3.3×3.3mm) package. With 3.2mOhm max RDS(ON) at 10V and 118A drain current, it provides ultra-low on-resistance for high-current synchronous rectification, battery management, and DC-DC converter applications.

Key Specifications

Type N-Channel Power MOSFET
VDS 40V
ID (Max) 118A
RDS(ON) 3.2mOhm @ VGS=10V
RDS(ON) 4.5mOhm @ VGS=4.5V
Qg (Total) 45nC @ 10V
Qsw 9nC @ 10V
Package Power33 (3.3 x 3.3mm)
Operating Temperature -55°C to +175°C

Features

  • 3.2mOhm ultra-low RDS(ON)
  • 118A high current capability
  • Power33 low-profile package
  • 4.5V logic-level gate drive
  • Low Qsw for high-frequency switching
  • 100% Rg tested

Applications

  • Server VRM synchronous rectification
  • Battery management system
  • DC-DC converter low-side switch
  • Motor drive power stage
  • Point-of-load converter

The onsemi NTMFS4C05N is a 40V N-channel MOSFET in the compact Power33 package with 3.2mOhm ultra-low RDS(ON) and 118A drain current. It is designed for high-current synchronous rectification in server VRMs, battery management systems, and DC-DC converters where minimizing conduction losses is critical for efficiency.

The NTMFS4C05N uses onsemi’s latest trench MOSFET technology with optimized cell structure to achieve 3.2mOhm RDS(ON) in the compact Power33 package. The trench gate and stripe layout maximize channel density while minimizing gate charge (45nC total, 9nC switching). The Power33 package provides excellent thermal performance through its exposed die-attach pad, enabling the 118A current rating in a 3.3×3.3mm footprint.

Pin Name Type Function
1 S Power Source
2 S Power Source
3 G Input Gate
4-8 D Power Drain (through thermal pad)
  • Server VRM multi-phase buck converter low-side
  • Li-ion battery BMS charge/discharge FET
  • High-current DC-DC synchronous rectifier
  • Motor drive H-bridge power element
  • Point-of-load 20-30A converter output stage
Manufacturer Part Number Package Notes
Infineon BSZ014N04LS G SuperSO8 40V 1.4mOhm
Vishay Si7884BDP PowerPAK SO-8 40V 7.5mOhm
onsemi NTMFS4C10N Power33 40V 5.6mOhm, lower cost
T semiconductors TrechMOS – –
onsemi NTPFS4C05N Power33 Same, different tape orientation
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