Ultra‑Low 4.4mΩ RDS(on) with Up to 80A Capability in a DFN5060 Package

MCC introduces the MCAC4D4N04YL, a 40V N‑Channel MOSFET developed to address the challenges of high‑current power designs where conduction losses, heat buildup, and limited board space can impact efficiency and reliability. Featuring an ultra‑low 4.4mΩ RDS(on), support for currents up to 80A, and low thermal resistance, this MOSFET reduces power loss and thermal stress while maintaining stable operation under demanding conditions. The robust 40V rating, extended 175 °C junction temperature, and compact DFN5060 package enable high power density and reliable performance without increasing system size or cooling complexity.

Features & Benefits:
  • 40V N‑Channel MOSFET optimized for high‑current power switching
  • Ultra‑low RDS(on) of 4.4mΩ (max) at VGS = 10V, minimizing conduction losses and improving efficiency
  • High continuous current capability up to 80A, supporting compact, high‑power designs
  • Split‑gate trench MOSFET technology for low on‑resistance and fast switching performance
  • Low thermal resistance (RθJC = 2.9 °C/W) enabling efficient heat dissipation
  • Extended maximum junction temperature of 175 °C for operation in harsh industrial environments
  • Robust 40V VDS rating providing margin against voltage spikes in 12V battery systems
  • DFN5060 package size: 5.0 × 6.0, designed for space‑constrained layouts with enhanced thermal performance

Product Highlights   

40V N‑Channel MOSFET

1

High Power Efficiency
 Ultra‑low RDS(on) of 4.4mΩ significantly reduces conduction losses, lowering power dissipation and improving overall system efficiency at high current levels.  

40V N‑Channel MOSFET

2

Compact High‑Current Design
 Support for up to 80A in a DFN5060 package enables high power density designs while conserving valuable board space.  

40V N‑Channel MOSFET

3

Improved Thermal Performance
 Low thermal resistance and a maximum junction temperature of 175 °C allow stable operation under heavy loads and elevated ambient temperatures.  

40V N‑Channel MOSFET

4

Robust System Reliability
 The 40V drain‑source rating and fast switching capability help manage voltage transients and dynamic loads, supporting reliable operation in demanding power applications.  

Applications 

This MOSFET is designed for high‑current, low‑voltage power applications where efficiency, thermal performance, and compact size are critical. Its electrical and thermal characteristics make it a strong fit for industrial, commercial, and general power system designs.  

Switch Mode Power Supply Unit  - SMPS - mcc semi 500x300

induction motor - application automotive - mcc semi - micro commercial components 500x300

_industrial battery energy storage system (BESS) cabinet - mcc semi 500x300

Power distribution units (PDUs) mcc semi - micro commercial components 500x300

Power Supplies

Industrial Automation

& Motor Control  

Energy Storage

& Battery Systems

Power Distribution

& Switching

  • Switched-mode power supplies (SMPS)
  • DC-DC converters
  • Intermediate bus converters
  • Industrial motor drives and control systems
  • Servo drives and motion control modules
  • Battery management systems (BMS)
  • Battery protection circuits

 

  • Power distribution units (PDU)
  • Solid-state relays (SSR)
  • Load switching circuits 

 

Product Attributes, Parametrics & Datasheet

Product

Type

Package

Channel

Drain-Source
Voltage
VDS (V)

Gate-Source
Voltage
VGS (V)

Drain
Current
ID (A)

Drain-Source
On-Resistance
RDS(ON)
Max
@VGS=10V (Ω)

Gate
Threshold
Voltage
VGS(th)
Min
(V)

Datasheet

MCAC4D4N04YL

Power MOSFET

DFN5060

N

40

±20

80

0.0044

0.008

Info

 

Now available, purchase directly from MCC or through our authorized distributors. 

For technical inquiries or sample requests, contact MCC for support.

 

MCC
Post by MCC
April 1, 2026
MCC is a leading integrated device manufacturer (IDM) of discrete semiconductors worldwide. Headquartered in the US, we deliver supply chain assurance, best-in-class support, and a diverse portfolio of 10,000+ advanced components to help customers innovate in automotive, industrial, and beyond.