---
title: MCC launches 40V N‑Channel MOSFET for Ultra-Compact, High-Current Power Designs
description: 40 V AEC‑Q101 N‑Channel MOSFET with 2.9 mΩ Rds(on) in a compact DFN5060 package, delivering high power density, efficiency, and robust switching for 12 V/24 V automotive and industrial systems.
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---

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# MCC launches 40V N‑Channel MOSFET for Ultra-Compact, High-Current Power Designs

# MCC launches 40V N‑Channel MOSFET for Ultra-Compact, High-Current Power Designs

![MCC](https://solutions.mccsemi.com/hs-fs/hubfs/mcc%20150x150%20(1).png?width=50&height=50&name=mcc%20150x150%20(1).png)

 by [MCC](https://solutions.mccsemi.com/news/author/mcc)

December 15, 2025

## 2.9 mΩ Rds(on) and AEC‑Q101 Qualification in a Thermally Efficient DFN5060 Package

MCC introduces the [MCAC2D9N04YHQ](https://www.mccsemi.com/products/mosfets/power-mosfets/mcac2d9n04yhq), a 40 V single N‑Channel MOSFET purpose-built for designers who need to switch high currents in minimal board space while maintaining high efficiency and safe operating temperatures in 12 V and 24 V systems. Using advanced split-gate trench technology, this device achieves an ultra-low 2.9 mΩ Rds(on) in a compact DFN5060 (5.0 mm × 6.0 mm) package, cutting conduction and switching losses and enabling high power density in space-constrained layouts. 

AEC-Q101 automotive qualification and a robust 40 V VDS rating provide reliable operation under voltage spikes and harsh electrical conditions, making it well-suited for EV body electronics, DC-DC converters, battery management systems, energy storage, and motor control. A low 1.4 °C/W junction-to-case thermal resistance improves heat transfer and supports high current operation without bulky thermal solutions, while RoHS and halogen-free compliance ensure the MCAC2D9N04YHQ fits seamlessly into environmentally responsible, regulation-ready designs.

![MCC launches 40 V N‐Channel MOSFET for Ultra-Compact, High-Current Power Designs MCAC2D9N04YHQ - mcc semi - micro commercial components 500x500  (1)](https://solutions.mccsemi.com/hs-fs/hubfs/MCC%20launches%2040%20V%20N%E2%80%90Channel%20MOSFET%20for%20Ultra-Compact%2c%20High-Current%20Power%20Designs%20MCAC2D9N04YHQ%20-%20mcc%20semi%20-%20micro%20commercial%20components%20500x500%20%20(1).png?width=500&height=500&name=MCC%20launches%2040%20V%20N%E2%80%90Channel%20MOSFET%20for%20Ultra-Compact%2c%20High-Current%20Power%20Designs%20MCAC2D9N04YHQ%20-%20mcc%20semi%20-%20micro%20commercial%20components%20500x500%20%20(1).png)

[40V N-channel MOSFET](https://www.mccsemi.com/products/mosfets/power-mosfets/mcac2d9n04yhq)

##### Features & Benefits:

- AEC-Q101 qualified for automotive-grade reliability and robustness
- Split-Gate Trench MOSFET technology optimized for low on-resistance and high switching speed
- Low Rds(on) of 2.9 mΩ (max) at Vgs = 10 V, minimizing conduction losses, reducing heat generation, and improving overall system efficiency
- 40 V drain-source voltage (VDS) rating, providing ample margin for handling voltage spikes and ringing in 12 V and 24 V automotive battery systems
- Low thermal resistance of 1.4 °C/W (junction-to-case) to enhance heat transfer and support stable operation at higher power levels
- Compact DFN5060 package (5.0 mm × 6.0 mm) enabling ultra-compact, high-current designs with excellent thermal performance

[MCAC2D9N04YHQ](https://www.mccsemi.com/products/mosfets/power-mosfets/mcac2d9n04yhq)

[Download Flyer](https://solutions.mccsemi.com/hubfs/NPI%20Flyers/MCC%20launches%2040V%20N%E2%80%90Channel%20MOSFET%20for%20Ultra-Compact%2c%20High-Current%20Power%20Designs.pdf)

## Product Highlights   

40V 2.9mΩ N-CHANNEL MOSFET

### 1

###### High Power Density in Compact Designs

Ultra-low Rds(on) of 2.9 mΩ in a small DFN5060 (5.0 mm × 6.0 mm) package supports high-current operation in tight board spaces, allowing more power functionality per unit area.

40V 2.9mΩ N-CHANNEL MOSFET

### 2

###### Improved System Efficiency and Thermal Performance

Low conduction losses combined with 1.4 °C/W junction-to-case thermal resistance reduce heat generation and simplify thermal management, enabling cooler, more efficient systems. 

40V 2.9mΩ N-CHANNEL MOSFET

### 3

###### Automotive-Grade Reliability and Voltage Robustness

AEC-Q101 qualification and a 40 V VDS rating provide confidence against voltage spikes and harsh operating conditions in 12 V and 24 V automotive environments, enhancing long-term system reliability. 

40V 2.9mΩ N-CHANNEL MOSFET

### 4

###### Faster, Cleaner Switching for Precision Control

Split-gate trench technology delivers high switching speed and low switching losses, supporting cleaner waveforms, reduced EMI, and more precise control in DC-DC converters, motor drives, and load switches.

## Applications

| ![dc-dc converters - EV BMS - mcc semi - micro commercial components 500x300](https://solutions.mccsemi.com/hs-fs/hubfs/dc-dc%20converters%20-%20EV%20BMS%20-%20mcc%20semi%20-%20micro%20commercial%20components%20500x300.png?width=196&height=118&name=dc-dc%20converters%20-%20EV%20BMS%20-%20mcc%20semi%20-%20micro%20commercial%20components%20500x300.png) | ![UPS battery chargers application - mcc semi - 500x300](https://solutions.mccsemi.com/hs-fs/hubfs/UPS%20battery%20chargers%20application%20-%20mcc%20semi%20-%20500x300.png?width=205&height=123&name=UPS%20battery%20chargers%20application%20-%20mcc%20semi%20-%20500x300.png) | ![heating system - mcc semi - micro commercial components 500x300](https://solutions.mccsemi.com/hs-fs/hubfs/heating%20system%20-%20mcc%20semi%20-%20micro%20commercial%20components%20500x300.png?width=190&height=114&name=heating%20system%20-%20mcc%20semi%20-%20micro%20commercial%20components%20500x300.png) | ![energy storage - mcc semi 500x300](https://solutions.mccsemi.com/hs-fs/hubfs/energy%20storage%20-%20mcc%20semi%20500x300.png?width=208&height=125&name=energy%20storage%20-%20mcc%20semi%20500x300.png) | ![heat pump application - mcc semi - micro commercial components 500x300](https://solutions.mccsemi.com/hs-fs/hubfs/heat%20pump%20application%20-%20mcc%20semi%20-%20micro%20commercial%20components%20500x300.png?width=219&height=131&name=heat%20pump%20application%20-%20mcc%20semi%20-%20micro%20commercial%20components%20500x300.png) |
| --- | --- | --- | --- | --- |
| Automotive & EV Systems  | Industrial Power Conversion  | General Load Management & Switching  | Energy Storage & Battery Management  | Motor Drives & Motion Control   |
| - Body electronics and control modules (BCM) in EVs  - Power distribution units (PDUs) for EV and hybrid vehicles  - On-board chargers (OBC) and auxiliary power modules  - Electric power steering (EPS) and electric braking systems  - Lighting control (LED headlamps, DRL, interior lighting) | - DC-DC converters for industrial and telecom power supplies  - AC-DC front-end stages (as synchronous rectification / secondary-side switching)  - Uninterruptible power supplies (UPS) and backup power modules  - Programmable power supplies and lab equipment | - Smart load switching for resistive, capacitive, and inductive loads  - Power distribution switches in embedded and rack systems  - Relay and fuse replacement in solid-state power switches  - Lighting, HVAC, and building automation load control | - Battery Management Systems (BMS) for EV, ESS, and industrial battery packs  - Cell balancing, pack protection, and switching paths  - Battery disconnect and pre-charge circuits  - Portable and modular energy storage systems  | - Motor drives and control for BLDC, PMSM, and brushed DC motors  - Pumps, fans, and compressor drives in automotive and industrial equipment  - Robotics, AGVs, and warehouse automation actuators  - Power tools, garden tools, and small appliance motor controllers |

 

## Product Attributes, Parametrics & Datasheet

| Product | Type | Package | Drain-Source  Voltage  VDS (V)     | Drain-Source  Voltage  VDS (V)  | Drain  Current ID (A)   | Drain-Source  On-Resistance  RDS(ON)  Max  @VGS=10V (Ω)   | Datasheet |
| --- | --- | --- | --- | --- | --- | --- | --- |
| [MCAC2D9N04YHQ](https://www.mccsemi.com/products/mosfets/power-mosfets/mcac2d9n04yhq) | Power MOSFET  | [DFN5060](https://www.mccsemi.com/pdf/productpackaging/DFN5060_Package_Rev_I.pdf) | Single N | 40 | 145 | 0.0029 | [Info](https://www.mccsemi.com/pdf/products/MCAC2D9N04YHQ(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/mcc-launches-40-v-n-channel-mosfet-for-ultra-compact-high-current-power-designs#hs-chat-open) for support.  

For a deeper dive into MOSFET applications and design considerations, get our [essential guide.](https://solutions.mccsemi.com/the-essential-guide-to-40v-mosfet-functions-features)

 

###### 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)

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Post by [MCC](https://solutions.mccsemi.com/news/author/mcc)   
 December 15, 2025

 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.

#### Global Headquarters

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