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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Infineon Technologies IAUCN04S7N020ATMA1

Name: IAUCN04S7N020ATMA1
Brand: Infineon Technologies
SKU: IAUCN04S7N020ATMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IAUCN04S7N020ATMA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: 8-PowerTDFN

Datasheet:: IAUCN04S7N020ATMA1.pdf

Description:: MOSFET_(20V 40V)

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Product details

Overview

IAUCN04S7N020 from Infineon is an N-channel enhancement-mode automotive power MOSFET in PG-TDSON-8-33 package, rated for 40 V V_DS, 2.05 mΩ R_DS(on) at V_GS = 10 V / I_D = 60 A, and 139 A chip-limited continuous drain current. It operates up to 175 °C, supports 100% single-pulse avalanche testing, and is qualified per AEC-Q101 with MSL1 reflow capability.

For engineers reviewing the IAUCN04S7N020 datasheet, IAUCN04S7N020 pinout, IAUCN04S7N020 application, or IAUCN04S7N020 equivalent, key selection criteria include its low R_DS(on) at high temperature, robust avalanche energy (26 mJ), extended thermal rating, and suitability for high-current 12 V/24 V automotive power stages such as DC-DC converters and motor drivers.

Technical Context

This OptiMOS™ 7 device uses trench-based silicon technology optimized for low conduction and switching losses in automotive power conversion. Its gate threshold voltage (2.2–3.0 V) enables reliable turn-on with standard 5 V or 10 V gate drivers, while its 2.0 Ω typical gate resistance supports controlled switching transitions.

The MOSFET integrates a fast-recovery body diode (t_rr = 24–36 ns, Q_rr = 9–18 nC) and exhibits low output capacitance (C_oss = 993–1290 pF) and reverse transfer capacitance (C_rss = 36–54 pF), enabling efficient operation in synchronous rectification and high-frequency buck topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	40 V - Maximum blocking voltage for 12 V/24 V automotive systems with transient margin
R_DS(on)	2.05 mΩ @ V_GS=10 V, I_D=60 A - Enables <1 W conduction loss at 70 A, critical for thermally constrained modules
I_D (chip-limited)	139 A - Supports high peak currents in engine control units and EPS without external current limiting
T_j max	175 °C - Allows operation in under-hood environments without derating in most mounting configurations
E_AS	26 mJ - Withstands inductive energy during fault events in solenoid or motor drive circuits
t_rr / Q_rr	24–36 ns / 9–18 nC - Reduces switching loss and voltage overshoot in synchronous rectifiers

Pinout & Package

PG-TDSON-8-33 is a thermally enhanced 8-pin exposed-pad surface-mount package with dual-source configuration. The exposed thermal pad (Pin 1–4 and Pin 5–8 source terminals) provides low R_thJC (1.0–2.0 K/W) for direct PCB copper thermal coupling.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4	Source (S)	Low-inductance parallel source connection; tied to exposed thermal pad for optimal heat dissipation
5, 6, 7, 8	Source (S)	Second set of source terminals; enables symmetrical current distribution and reduced layout parasitics
Drain (D)	Drain (D)	Exposed copper pad on bottom side - primary current path and thermal interface to heatsink or PCB plane
Gate (G)	Gate (G)	Single top-side gate pad - designed for low-impedance driver connection with minimal ringing risk

Key Features

Feature	Design Value
AEC-Q101 qualified + extended electrical test coverage	Validated beyond standard stress requirements for safety-critical automotive subsystems
MSL1 rating (260 °C peak reflow)	Compatible with standard lead-free SMT assembly without moisture sensitivity concerns
100% single-pulse avalanche tested	Guarantees ruggedness against inductive switching faults without screening failure
Optimized C_iss/C_oss ratio (1705/993 pF)	Enables stable hard-switching behavior and predictable gate drive power demand
Body diode Q_rr ≤ 18 nC	Minimizes reverse recovery loss in bidirectional power flow applications like regenerative braking

Applications

Engine Control Unit (ECU) Power Stage

Electric Power Steering (EPS) H-Bridge

Use Scenario: High-current 12 V supply switching for fuel injector drivers and ignition coils.

IC Role / Device Role / Timing Role: Low-side switch controlling pulsed coil current with precise timing and high dI/dt capability.

Use Value: 2.05 mΩ R_DS(on) reduces power loss by >30% vs. legacy 3.5 mΩ devices, lowering ECU thermal load.

Use Scenario: Bidirectional motor phase control in 12 V EPS systems requiring fast commutation.

IC Role / Device Role / Timing Role: Half-bridge low-side switch with integrated fast-recovery body diode for freewheeling.

Use Value: 24–36 ns t_rr and 9–18 nC Q_rr cut diode switching loss by ~40% versus older OptiMOS™ 5 parts.

48 V Mild Hybrid DC-DC Converter

Automotive HVAC Blower Driver

Use Scenario: Primary-side synchronous rectifier in 12 V → 48 V bi-directional buck-boost converter.

IC Role / Device Role / Timing Role: High-efficiency, high-frequency (200–500 kHz) power switch with low C_oss and gate charge.

Use Value: 25–32 nC total gate charge enables efficient driving with low-power gate drivers, reducing auxiliary supply burden.

Use Scenario: PWM-controlled blower motor driver in cabin climate systems with variable speed demand.

IC Role / Device Role / Timing Role: High-current (≥80 A peak) low-side switch handling intermittent surge loads.

Use Value: 139 A chip-limited I_D and 175 °C T_j rating eliminate need for external current sensing or thermal throttling.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel automotive power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IAUZ40N04S5L029	R_DS(on) = 2.9 mΩ @ 10 V; lower Q_g (21 nC); same PG-TDSON-8-33 package	Slightly higher conduction loss but faster switching in <100 kHz applications	Select when gate drive strength is limited and thermal margin allows higher R_DS(on)
IPB180N04S4-02	R_DS(on) = 2.0 mΩ @ 10 V; TO-263-7 package; no MSL1 rating	Higher thermal mass but requires through-hole rework; not qualified for automated SMT lines	Prefer only for legacy board redesigns where footprint change is acceptable and reflow compatibility is not required

Compared with IAUZ40N04S5L029 and IPB180N04S4-02, IAUCN04S7N020 delivers the lowest R_DS(on) in an MSL1-qualified SMT package, making it optimal for new automotive designs prioritizing power density, thermal headroom, and production scalability.

Availability

IAUCN04S7N020 is available at Aetrix Electronics and suitable for engine control units, electric power steering systems, and 48 V mild hybrid DC-DC converters requiring stable component supply across multi-year vehicle production cycles.

Supply support for IAUCN04S7N020 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power semiconductors, microcontrollers, and sensor solutions for automotive, industrial, and renewable energy markets.

This part belongs to the OptiMOS™ 7 product line, engineered specifically for high-efficiency, high-reliability 12 V and 48 V automotive power conversion with emphasis on low R_DS(on), robust avalanche performance, and AEC-Q101 compliance.

FAQ

What is the maximum allowable gate-source voltage for IAUCN04S7N020?

The absolute maximum gate-source voltage is ±20 V, as specified in the datasheet's "Maximum ratings" table. Operation above +20 V risks permanent gate oxide damage, while negative voltage beyond –20 V may cause threshold shift. Recommended gate drive is 10 V for full enhancement with margin, and minimum functional V_GS is 4.4 V (plateau voltage).

Does IAUCN04S7N020 require external gate resistors in automotive H-bridge applications?

Yes - a gate resistor (typically 2.2–10 Ω) is recommended to dampen ringing and control dV/dt during switching. The device's 2.0 Ω typical gate resistance alone is insufficient to suppress oscillation when driven by low-impedance controllers; external resistance ensures reliable turn-on/turn-off timing and EMI compliance in noisy automotive environments.

How does the body diode performance compare to discrete Schottky alternatives in EPS applications?

The integrated body diode has V_SD = 0.8–0.95 V at 60 A and t_rr = 24–36 ns, offering lower forward drop than SiC Schottky diodes above 100 °C but higher than room-temperature Si Schottky. Its advantage lies in monolithic integration, eliminating bond-wire inductance and enabling tighter layout - critical for high-dI/dt EPS motor phases.

Is IAUCN04S7N020 compatible with standard FR4 PCBs used in automotive ECUs?

Yes - the PG-TDSON-8-33 package is qualified for JEDEC-standard 2s2p FR4 boards (JESD51-5/-7) with vertical orientation in still air. Thermal resistance to ambient (R_thJA) is 28 K/W under those conditions, and the exposed drain pad allows direct thermal via stitching to internal ground planes, supporting reliable operation at full 139 A with appropriate copper area.

IAUCN04S7N020ATMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: OptiMOS™ 7

Package/Case:: 8-PowerTDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 40 V

Current - Continuous Drain (Id) @ 25°C:: -

Drive Voltage (Max Rds On, Min Rds On):: 10V

Rds On (Max) @ Id, Vgs:: -

Vgs(th) (Max) @ Id:: -

Gate Charge (Qg) (Max) @ Vgs:: 24 nC @ 10 V

Vgs (Max):: -

Input Capacitance (Ciss) (Max) @ Vds:: -

FET Feature:: -

Power Dissipation (Max):: -

Operating Temperature:: -55°C ~ 175°C

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TDSON-8-33

IAUCN04S7N020ATMA1 FAQ

1.How can I place an order for IAUCN04S7N020ATMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IAUCN04S7N020ATMA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for IAUCN04S7N020ATMA1 reliable?

The price and inventory of IAUCN04S7N020ATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IAUCN04S7N020ATMA1 is usually 5 days.

3.What payment methods are accepted for IAUCN04S7N020ATMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IAUCN04S7N020ATMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IAUCN04S7N020ATMA1?

IAUCN04S7N020ATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IAUCN04S7N020ATMA1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for IAUCN04S7N020ATMA1?

For technical support, including IAUCN04S7N020ATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IAUCN04S7N020ATMA1 requirements.

6.How does Aetrix verify that IAUCN04S7N020ATMA1 is sourced from the original manufacturer or authorized distributors?

All IAUCN04S7N020ATMA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IAUCN04S7N020ATMA1 meets industry standards.

7.What is the process for return or replacement of IAUCN04S7N020ATMA1?

All IAUCN04S7N020ATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IAUCN04S7N020ATMA1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The IAUCN04S7N020ATMA1 part is unused and in its original packaging.

Return procedure for IAUCN04S7N020ATMA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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