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

Infineon Technologies AUIRF2804STRL

Name: AUIRF2804STRL
Brand: Infineon Technologies
SKU: AUIRF2804STRL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AUIRF2804STRL

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: AUIRF2804STRL.pdf

Description:: MOSFET N-CH 40V 195A D2PAK

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Product details

Overview

AUIRF2804STRL from Infineon is an automotive-grade N-channel D2PAK (TO-263) HEXFET® Power MOSFET designed for high-current DC-DC converters, motor control, and battery management systems. It delivers 40 V V_DS, 1.5 mΩ typ. R_DS(on) at V_GS = 10 V, 195 A package-limited continuous drain current, and 175 °C maximum junction temperature - enabling robust operation in under-hood automotive power stages.

For engineers reviewing the AUIRF2804STRL datasheet, AUIRF2804STRL pinout, AUIRF2804STRL application, or AUIRF2804STRL equivalent, key selection criteria include its ultra-low on-resistance, repetitive avalanche capability up to T_jmax, fast switching (t_r = 120 ns, t_f = 130 ns), and D2PAK thermal performance (R_θJC = 0.50 °C/W) in high-power automotive power conversion.

Technical Context

This MOSFET uses advanced silicon process technology to minimize conduction losses while maintaining ruggedness against unclamped inductive switching. Its gate charge profile (Q_g = 160–240 nC, Q_gd = 66–99 nC) supports efficient high-frequency PWM operation in synchronous buck converters and H-bridge motor drivers.

The device integrates a fast, low-V_SD body diode (V_SD ≤ 1.3 V at I_S = 75 A, t_rr = 56–84 ns) with controlled reverse recovery, reducing switching loss and EMI in hard-switched topologies. Repetitive avalanche energy (E_AR) is rated up to 540 mJ at T_j = 25 °C, validated per JEDEC AEC-Q101 stress tests.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	40 V - Maximum blocking voltage for 12 V/24 V automotive battery rail applications
R_DS(on) typ.	1.5 mΩ @ V_GS = 10 V, I_D = 75 A - Enables <1.2 W conduction loss at 100 A, critical for thermal management
I_D (Package)	195 A @ T_C = 25 °C - Real-world current limit defined by D2PAK leadframe and solder joint reliability
E_AS	540 mJ - Single-pulse avalanche energy limit ensures safe operation during load dump or inductive turn-off
t_r/t_f	120 ns / 130 ns - Fast edge rates support >200 kHz switching without excessive gate drive loss
T_J max	+175 °C - Enables placement near heat sources (e.g., engine bay, inverters) without derating
Q_g	160–240 nC - Gate charge magnitude determines required driver peak current (e.g., ≥3 A for 100 ns rise)

Pinout & Package

Package: D2PAK (TO-263AB), surface-mount, isolated drain tab, 3-pin configuration with exposed metal pad for thermal and electrical connection to PCB ground plane.

Pin/Terminal	Circuit Role	Design Meaning
Gate (G)	Control input	Receives 10 V logic-level signal; threshold voltage 2.0–4.0 V enables compatibility with standard 3.3 V/5 V microcontrollers via level-shifting
Drain (D)	High-side power output	Internally connected to exposed copper tab; must be soldered to large copper pour for thermal dissipation and low-inductance return path
Source (S)	Power return reference	Provides common reference for gate drive and current sensing; low-inductance layout essential for stable high-di/dt operation

Key Features

Feature	Design Value
Ultra-low R_DS(on)	1.5 mΩ typ. reduces conduction loss by >40% vs. legacy 40 V MOSFETs, directly improving efficiency in 12 V starter-alternator systems
175 °C operating junction	Enables full-rated performance in ambient temperatures up to 125 °C (e.g., engine compartment), eliminating need for external derating circuits
Repetitive avalanche rating	Validated for repeated unclamped inductive switching - eliminates need for external snubbers in brushed DC motor drives
Automotive qualification	AEC-Q101 qualified with 100% production lot testing for HTOL, TC, UHAST, and ESD - meets ISO/TS 16949 traceability requirements
RoHS-compliant & lead-free	Meets EU RoHS Directive 2011/65/EU and JESD204B reflow profile - compatible with Pb-free assembly processes up to 260 °C peak

Applications

Engine Start-Stop Control

48 V Mild Hybrid DC-DC Converter

Use Scenario: High-current solenoid and pre-charge switching during automatic engine restart after idle stop.

IC Role / Device Role / Timing Role: Main power switch controlling 12 V battery-to-starter circuit; operates in hard-switched mode with <500 µs turn-on latency.

Use Value: 195 A package rating and 175 °C T_j ensure reliable engagement even at -40 °C cold crank and +105 °C under-hood ambient.

Use Scenario: Primary switch in bidirectional 12 V ↔ 48 V LLC resonant converter for regenerative braking energy transfer.

IC Role / Device Role / Timing Role: Synchronous rectifier and primary-side switch; requires low Q_gd/Q_g ratio for ZVS transition at 300–500 kHz.

Use Value: 66–99 nC Q_gd and 1.5 mΩ R_DS(on) minimize conduction + switching loss, achieving >97% peak efficiency at 3 kW.

Electric Power Steering (EPS) H-Bridge

On-Board Charger (OBC) Input Stage

Use Scenario: Low-side switching in dual H-bridge motor driver delivering up to 80 A peak to 3-phase EPS assist motor.

IC Role / Device Role / Timing Role: High-current, high-di/dt power stage switch; subjected to repetitive avalanche during motor phase commutation.

Use Value: 540 mJ E_AS and 1080 A I_DM pulsed rating prevent failure during abrupt torque reversal or stall conditions.

Use Scenario: AC-DC PFC boost switch in 6.6 kW OBC front-end, operating continuously at 100 kHz with 20 A RMS current.

IC Role / Device Role / Timing Role: High-efficiency, thermally robust main switch; mounted on 1"² FR-4 copper area per Infineon AN-994 footprint.

Use Value: R_θJA = 40 °C/W (PCB mount) and 0.50 °C/W R_θJC enable <85 °C T_j rise at full load without heatsink.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current automotive MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL220N4F7AG	40 V, 2.2 mΩ R_DS(on), 220 A package rating, DFN8 5×6 mm package	Lower thermal resistance (R_θJC = 0.35 °C/W) but smaller footprint limits current density in high-vibration environments	Preferred for space-constrained ADAS ECUs where board area is premium and mechanical shock is minimal
IRF1404ZLPbF	40 V, 3.8 mΩ R_DS(on), TO-220 package, non-automotive grade	No AEC-Q101 qualification; max T_j = 175 °C but no HTOL or TC validation	Acceptable only for non-safety-critical 12 V industrial power supplies with ambient <85 °C

Compared with STL220N4F7AG and IRF1404ZLPbF, AUIRF2804STRL offers the lowest R_DS(on) in a thermally robust, vibration-resistant D2PAK package with full automotive qualification - making it optimal for safety-critical, high-power under-hood applications requiring long-term reliability.

Availability

AUIRF2804STRL is available at Aetrix Electronics and suitable for engine start-stop control, 48 V mild hybrid DC-DC converters, and electric power steering systems requiring stable component supply across multi-year automotive production cycles.

Supply support for AUIRF2804STRL 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 is a German semiconductor manufacturer specializing in power management, automotive electronics, and security solutions, with global R&D and manufacturing infrastructure.

AUIRF2804STRL belongs to the HEXFET® automotive power MOSFET product line, engineered specifically for high-reliability, high-current switching in 12 V and 48 V vehicle electrical architectures - emphasizing low R_DS(on), rugged avalanche behavior, and AEC-Q101 compliance.

FAQ

What is the maximum continuous drain current for AUIRF2804STRL at 100°C case temperature?

The maximum continuous drain current at T_C = 100 °C is 190 A (silicon-limited), as specified in the Absolute Maximum Ratings table. This value reflects thermal derating due to reduced channel mobility and increased R_DS(on) at elevated temperature, and assumes proper PCB copper area and airflow per Infineon AN-994 guidelines.

Does AUIRF2804STRL require a gate resistor for automotive motor drive applications?

Yes - a gate resistor (typically 2.5–10 Ω) is required to control dV/dt and suppress oscillation during fast switching. The datasheet specifies t_d(on), t_r, t_d(off), and t_f test conditions using R_G = 2.5 Ω; omitting it risks shoot-through, EMI, and gate oxide overstress in H-bridge configurations.

Can AUIRF2804STRL be used in parallel with identical units for higher current capacity?

Yes - its positive R_DS(on) temperature coefficient (R_DS(on) increases with T_j) enables inherent current sharing. Successful paralleling requires matched gate drive layout, symmetrical PCB copper, and individual gate resistors; Infineon AN-1140 provides layout rules for >300 A aggregate designs.

Is the body diode in AUIRF2804STRL suitable for synchronous rectification in a buck converter?

No - while the body diode has fast t_rr (56–84 ns) and low V_SD (≤1.3 V), it lacks optimized soft-recovery characteristics. For synchronous rectification, an external Schottky or dedicated SR controller with low-Q_rr MOSFETs is recommended to avoid reverse recovery spikes and cross-conduction loss.

AUIRF2804STRL Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tape & Reel (TR)

Product Status:: Last Time Buy

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 40 V

Current - Continuous Drain (Id) @ 25°C:: 195A (Tc)

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

Rds On (Max) @ Id, Vgs:: 2mOhm @ 75A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 240 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 6450 pF @ 25 V

FET Feature:: -

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

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

AUIRF2804STRL FAQ

1.How can I place an order for AUIRF2804STRL through Aetrix?

Please submit a Request for Quotation (RFQ) for AUIRF2804STRL 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 AUIRF2804STRL reliable?

The price and inventory of AUIRF2804STRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRF2804STRL is usually 5 days.

3.What payment methods are accepted for AUIRF2804STRL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRF2804STRL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AUIRF2804STRL?

AUIRF2804STRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AUIRF2804STRL 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 AUIRF2804STRL?

For technical support, including AUIRF2804STRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRF2804STRL requirements.

6.How does Aetrix verify that AUIRF2804STRL is sourced from the original manufacturer or authorized distributors?

All AUIRF2804STRL 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 AUIRF2804STRL meets industry standards.

7.What is the process for return or replacement of AUIRF2804STRL?

All AUIRF2804STRL units undergo pre-shipment inspection (PSI). If there is an issue with AUIRF2804STRL, 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 AUIRF2804STRL part is unused and in its original packaging.

Return procedure for AUIRF2804STRL:

1.Submit a request within 90 days.

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

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