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

Infineon Technologies IPB240N04S4R9ATMA1

Name: IPB240N04S4R9ATMA1
Brand: Infineon Technologies
SKU: IPB240N04S4R9ATMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IPB240N04S4R9ATMA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-263-7, D2PAK (6 Leads + Tab)

Datasheet:: IPB240N04S4R9ATMA1.pdf

Description:: MOSFET N-CH 40V 240A TO263-7

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Product details

Overview

IPB240N04S4R9ATMA1 from Infineon Technologies is an AEC-Q101 qualified N-channel enhancement-mode MOSFET in PG-TO263-7-3 package, rated for 40 V V_DS, 0.87 mΩ R_DS(on) at V_GS = 10 V and I_D = 100 A, with 240 A continuous drain current at T_C = 25 °C. It delivers ultra-low conduction loss and 100% single-pulse avalanche ruggedness (E_AS = 750 mJ), targeting high-current automotive power stages.

For engineers reviewing the IPB240N04S4R9ATMA1 datasheet, IPB240N04S4R9ATMA1 pinout, IPB240N04S4R9ATMA1 application, or IPB240N04S4R9ATMA1 equivalent, key selection criteria include R_DS(on) stability over temperature, gate charge profile for PWM efficiency, avalanche energy rating, thermal resistance (R_thJC = 0.5 K/W), and AEC-Q101 qualification for under-hood use.

Technical Context

This OptiMOS™-T2 device uses trench-based silicon technology optimized for low R_DS(on) × Q_g figure-of-merit in 40 V automotive applications. Its gate threshold voltage (2.0–4.0 V) ensures robust noise immunity while enabling fast switching with low gate drive requirements.

Thermal design is enabled by a dedicated drain-connected copper pad in the PG-TO263-7-3 package, supporting direct PCB heatsinking. The 175 °C maximum junction temperature and MSL1 reflow rating allow integration into high-reliability engine control units and battery disconnect modules.

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)	0.87 mΩ @ V_GS=10 V, I_D=100 A - Enables <1 W conduction loss at 200 A, critical for high-efficiency motor drives.
I_D (cont)	240 A @ T_C=25 °C - Supports high-current load switching without paralleling devices in starter relays or DC-DC converters.
E_AS	750 mJ @ I_D=120 A - Guarantees reliable operation during inductive load turn-off in solenoid drivers and H-bridge freewheeling.
R_thJC	0.5 K/W - Allows direct thermal path to heatsink, enabling >250 W power dissipation with minimal ΔT_jc.
Q_g	220–290 nC - Defines gate drive power requirement; enables efficient 20–100 kHz PWM in on-board chargers.
V_GS(th)	2.0–4.0 V - Ensures clean turn-on with standard 3.3 V or 5 V logic-level gate drivers in microcontroller-based systems.

Pinout & Package

IPB240N04S4R9ATMA1 is housed in PG-TO263-7-3 (D²PAK-7) package with exposed drain pad for thermal and electrical connection. Pin 1–3 are source terminals, Pin 4 is gate, Pin 5–7 are parallel source connections, and the large tab is drain (non-isolated).

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 5, 6, 7	Source (S)	Multiple low-inductance source paths reduce common-source inductance in high-di/dt switching.
4	Gate (G)	Single gate input with 117 nC typical Q_gs; requires <3.5 Ω external gate resistor for controlled dv/dt.
Drain Tab	Drain (D)	Exposed copper drain pad provides primary thermal path and carries full 240 A current; must be soldered to ≥6 cm² PCB copper area.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive under-hood environments including temperature cycling, humidity, and mechanical shock per JESD47.
100% avalanche tested	Each unit passes single-pulse E_AS stress test at 750 mJ, ensuring field reliability in inductive load switching.
Ultra-low R_DS(on)	0.87 mΩ enables <0.5 W conduction loss at 150 A, reducing heatsink size and system cost in 48 V mild-hybrid inverters.
MSL1 up to 260 °C	Compatible with lead-free reflow profiles without popcorn or delamination risk in automated SMT assembly.
175 °C operating temperature	Supports placement near hot components (e.g., ignition coils, exhaust sensors) without derating in engine control modules.

Applications

Automotive Starter Relay

48 V Mild-Hybrid Inverter

Use Scenario: High-current contactor replacement in 12 V starter circuits handling cranking surges up to 960 A peak.

IC Role / Device Role / Timing Role: Main power switch controlling battery-to-starter motor path; operates in static on/off mode with minimal switching.

Use Value: Eliminates mechanical relay wear and arcing; 0.87 mΩ R_DS(on) limits voltage drop to <1 V at 240 A, preserving cranking torque.

Use Scenario: Phase-leg high-side switch in bidirectional DC-DC converter linking 12 V and 48 V rails in mild-hybrid vehicles.

IC Role / Device Role / Timing Role: Synchronous rectifier and active clamp switch operating at 25–50 kHz PWM with fast body diode recovery (t_rr = 85 ns).

Use Value: Low Q_rr (130 nC) and soft reverse recovery minimize switching losses and EMI during hard commutation.

Engine Control Unit (ECU) Load Driver

Battery Disconnect Switch (BDS)

Use Scenario: Driving high-power solenoids, fuel injectors, and glow plugs in diesel ECUs with tight thermal constraints.

IC Role / Device Role / Timing Role: Protected high-side driver with integrated overtemperature and short-circuit detection via external monitoring.

Use Value: 175 °C T_jmax and 750 mJ E_AS ensure survival during injector coil flyback transients without external snubbers.

Use Scenario: Isolating 48 V traction battery from vehicle loads during crash or service events per ISO 26262 ASIL-B requirements.

IC Role / Device Role / Timing Role: Fail-safe power switch activated by safety controller; must sustain 240 A continuously and interrupt fault currents >1 kA.

Use Value: AEC-Q101 qualification and 100% avalanche screening provide functional safety confidence for battery isolation integrity.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel 40 V automotive MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL220N4LF8AG	R_DS(on) = 0.95 mΩ, Q_g = 260 nC, same PG-TO263-7-3 package	Slightly higher conduction loss; lower gate charge variation across temperature	Prefer when tighter V_GS(th) tolerance (1.8–2.8 V) is needed for low-voltage MCU gate drive.
IRFS7537TRLPBF	R_DS(on) = 1.15 mΩ, Q_g = 200 nC, TO-263-3 package (3-pin)	Higher R_DS(on) and no multi-source pins; lacks AEC-Q101 certification	Acceptable only for non-automotive industrial DC-DC where qualification is not required and layout allows larger footprint.

Compared with STL220N4LF8AG and IRFS7537TRLPBF, IPB240N04S4R9ATMA1 offers the lowest R_DS(on) and full AEC-Q101 compliance, making it the preferred choice for thermally constrained, safety-critical automotive power stages requiring proven avalanche ruggedness.

Availability

IPB240N04S4R9ATMA1 is available at Aetrix Electronics and suitable for automotive starter relays, 48 V mild-hybrid inverters, and battery disconnect switches requiring stable component supply across extended production lifecycles.

Supply support for IPB240N04S4R9ATMA1 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 management, automotive electronics, and security solutions, with global R&D and manufacturing infrastructure.

This device belongs to the OptiMOS™-T2 product line, engineered specifically for high-current, high-reliability automotive power conversion where low R_DS(on), avalanche robustness, and AEC-Q101 compliance are mandatory.

FAQ

What is the maximum allowable PCB copper area for thermal performance?

The datasheet specifies optimal thermal performance with a 6 cm² (40 mm × 40 mm) single-layer 70 µm copper area connected to the drain tab on FR4 PCB. Using less than this area increases R_thJA to 62 K/W; doubling the area reduces it to ~40 K/W. Thermal vias under the tab further improve heat transfer to internal layers.

Does IPB240N04S4R9ATMA1 include integrated gate protection?

No, this MOSFET does not integrate gate protection circuitry such as Zener clamps or series resistors. External gate protection-like a 12 V Zener diode between gate and source and a 10 Ω series resistor-is required to limit V_GS to ±20 V and suppress ESD or ringing-induced overstress during high-di/dt switching.

Can it replace older OptiMOS™-T1 devices in existing designs?

Yes, IPB240N04S4R9ATMA1 is a direct drop-in replacement for IPB240N04S4-01 (OptiMOS™-T1) with identical pinout, package, and voltage ratings. It improves R_DS(on) by 12% (from 0.99 mΩ to 0.87 mΩ) and adds full AEC-Q101 qualification, enabling enhanced efficiency and automotive compliance without layout changes.

What is the significance of the "R9" suffix in the marking?

The "R9" denotes the specific die revision and process node within the OptiMOS™-T2 family. It identifies the 0.87 mΩ R_DS(on) variant manufactured using Infineon's optimized 40 V trench-MOS process, distinguishing it from earlier "R8" (0.95 mΩ) or later "R10" (0.80 mΩ) revisions with different on-resistance and gate charge trade-offs.

IPB240N04S4R9ATMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: OptiMOS™

Package/Case:: TO-263-7, D2PAK (6 Leads + Tab)

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:: 240A (Tc)

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

Rds On (Max) @ Id, Vgs:: 0.87mOhm @ 100A, 10V

Vgs(th) (Max) @ Id:: 4V @ 230µA

Gate Charge (Qg) (Max) @ Vgs:: 290 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 23000 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 300W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TO263-7-3

IPB240N04S4R9ATMA1 FAQ

1.How can I place an order for IPB240N04S4R9ATMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IPB240N04S4R9ATMA1 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 IPB240N04S4R9ATMA1 reliable?

The price and inventory of IPB240N04S4R9ATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IPB240N04S4R9ATMA1 is usually 5 days.

3.What payment methods are accepted for IPB240N04S4R9ATMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IPB240N04S4R9ATMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IPB240N04S4R9ATMA1?

IPB240N04S4R9ATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IPB240N04S4R9ATMA1 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 IPB240N04S4R9ATMA1?

For technical support, including IPB240N04S4R9ATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IPB240N04S4R9ATMA1 requirements.

6.How does Aetrix verify that IPB240N04S4R9ATMA1 is sourced from the original manufacturer or authorized distributors?

All IPB240N04S4R9ATMA1 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 IPB240N04S4R9ATMA1 meets industry standards.

7.What is the process for return or replacement of IPB240N04S4R9ATMA1?

All IPB240N04S4R9ATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IPB240N04S4R9ATMA1, 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 IPB240N04S4R9ATMA1 part is unused and in its original packaging.

Return procedure for IPB240N04S4R9ATMA1:

1.Submit a request within 90 days.

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

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