---
title: "High‑Current Efficiency in a Compact Footprint: MCC Launches a 40V N‑Channel MOSFET"
description: 40V N-channel MOSFET with ultra-low 4.4 mΩ RDS(on) in a compact DFN5060 package, supporting up to 80A for SMPS, DC-DC converters, BMS, motor drives, and power distribution.
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---
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# High‑Current Efficiency in a Compact Footprint: MCC Launches a 40V N‑Channel MOSFET
# High‑Current Efficiency in a Compact Footprint: MCC Launches a 40V N‑Channel MOSFET
.png?width=50&height=50&name=mcc%20150x150%20(1).png)
by [MCC](https://solutions.mccsemi.com/news/author/mcc)
April 01, 2026
## Ultra‑Low 4.4mΩ RDS(on) with Up to 80A Capability in a DFN5060 Package
MCC introduces the [MCAC4D4N04YL](https://www.mccsemi.com/products/mosfets/power-mosfets/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.
[40V N-Channel MOSFET](https://www.mccsemi.com/products/mosfets/power-mosfets/mcac4d4n04yl)
##### 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
[MCAC4D4N04YL](https://www.mccsemi.com/products/mosfets/power-mosfets/mcac4d4n04yl)
## 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.
|  |  | %20cabinet%20-%20mcc%20semi%20500x300.png?width=259&height=155&name=_industrial%20battery%20energy%20storage%20system%20(BESS)%20cabinet%20-%20mcc%20semi%20500x300.png) | %20mcc%20semi%20-%20micro%20commercial%20components%20500x300.png?width=257&height=154&name=Power%20distribution%20units%20(PDUs)%20mcc%20semi%20-%20micro%20commercial%20components%20500x300.png) |
| --- | --- | --- | --- |
| 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](https://www.mccsemi.com/products/mosfets/power-mosfets/mcac4d4n04yl) | Power MOSFET | DFN5060 | N | 40 | ±20 | 80 | 0.0044 | 0.008 | [Info](https://www.mccsemi.com/pdf/products/MCAC4D4N04YL(DFN5060).pdf) |
Now available, purchase directly from MCC or through our authorized distributors.
For technical inquiries or sample requests, [contact MCC](https://solutions.mccsemi.com/news/high-current-efficiency-in-a-compact-footprint-mcc-launches-a-40v-n-channel-mosfet#hs-chat-open) for support.
###### Tags:
[New Product Introductions,](https://solutions.mccsemi.com/news/tag/new-product-introductions) [News,](https://solutions.mccsemi.com/news/tag/news) [MOSFETs](https://solutions.mccsemi.com/news/tag/mosfets)
#### Related Content
[](https://solutions.mccsemi.com/news/mcc-introduces-40v-automotive-n-channel-mosfet-with-ultra-low-0.7mω-rdson-for-high-power-automotive-applications)
July 20, 2026
#### [MCC Introduces 40V Automotive N-Channel MOSFET with Ultra-Low 0.7mΩ RDS(on) for High-Power Automotive Applications](https://solutions.mccsemi.com/news/mcc-introduces-40v-automotive-n-channel-mosfet-with-ultra-low-0.7mω-rdson-for-high-power-automotive-applications)
[](https://solutions.mccsemi.com/news/mcc-introduces-a-high-efficiency-40-v-n-channel-mosfet-with-ultra-low-2.6-mω-rdson)
December 8, 2025
#### [MCC Introduces a High-Efficiency 40V N-Channel MOSFET with Ultra-Low 2.6 mΩ RDS(on)](https://solutions.mccsemi.com/news/mcc-introduces-a-high-efficiency-40-v-n-channel-mosfet-with-ultra-low-2.6-mω-rdson)
[](https://solutions.mccsemi.com/news/mcc-launches-40-v-n-channel-mosfet-for-ultra-compact-high-current-power-designs)
December 15, 2025
#### [MCC launches 40V N‑Channel MOSFET for Ultra-Compact, High-Current Power Designs](https://solutions.mccsemi.com/news/mcc-launches-40-v-n-channel-mosfet-for-ultra-compact-high-current-power-designs)
[](https://solutions.mccsemi.com/news/high-efficiency-power-in-compact-form-mccs-40v-n-channel-mosfets)
June 30, 2026
#### [High‑Efficiency Power in Compact Form: MCC’s 40V N‑Channel MOSFETs](https://solutions.mccsemi.com/news/high-efficiency-power-in-compact-form-mccs-40v-n-channel-mosfets)
.png?width=50&height=50&name=mcc%20150x150%20(1).png)
Post by [MCC](https://solutions.mccsemi.com/news/author/mcc)
April 1, 2026
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