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

Infineon Technologies AUIRFR024N

Name: AUIRFR024N
Brand: Infineon Technologies
SKU: AUIRFR024N
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AUIRFR024N

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: AUIRFR024N.pdf

Description:: MOSFET N-CH 55V 17A TO252AA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AUIRFR024N from Infineon is an automotive-grade N-channel D-Pak (TO-252AA) HEXFET® Power MOSFET with 55 V V_DS, 0.075 Ω R_DS(on) max at V_GS = 10 V and 10 A, 17 A continuous drain current at T_C = 25°C, and 175°C maximum junction temperature - deployed in high-reliability engine control, powertrain DC-DC converters, and load switch circuits.

For engineers reviewing the AUIRFR024N datasheet, AUIRFR024N pinout, AUIRFR024N application, or AUIRFR024N equivalent, key selection criteria include its 5.0 V/ns peak diode recovery dv/dt rating, fully rated repetitive avalanche capability up to T_jmax, 71 mJ single-pulse avalanche energy, and RoHS-compliant lead-free construction validated per AEC-Q101.

Technical Context

This MOSFET employs Infineon's advanced planar silicon process to achieve low on-resistance per die area while maintaining robust dynamic performance. Its gate charge profile (Q_g = 20 nC, Q_gd = 7.6 nC) supports fast switching in hard-switched topologies, and its body diode exhibits t_rr = 56–83 ns and Q_rr = 120–180 nC under defined 100 A/µs di/dt conditions.

The device is thermally characterized with R_θJC = 3.3°C/W and R_θJA = 50°C/W (PCB mount), enabling 45 W power dissipation at T_C = 25°C. Its ±20 V gate voltage rating and 2.0–4.0 V V_GS(th) support standard 12 V automotive logic-level drive without level-shifting.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V - withstands transients up to ISO 7637-2 Pulse 5a (load dump) in 12 V automotive systems
R_DS(on) max	0.075 Ω @ V_GS = 10 V, I_D = 10 A - enables <1.5 W conduction loss at 10 A continuous
I_D cont @ T_C = 25°C	17 A - supports high-current solenoid drivers and motor phase switches
E_AS	71 mJ - sustains unclamped inductive switching events without failure
dv/dt rating	5.0 V/ns - prevents spurious turn-on during fast voltage transients in noisy powertrain environments
T_J max	+175°C - meets under-hood thermal requirements for engine control modules
Q_g	20 nC - allows efficient gate driving with low-power controllers like MC9S12 or S32K

Pinout & Package

D-Pak (TO-252AA) package with exposed drain pad for thermal enhancement and mechanical stability in automotive PCB mounting. Standard 3-pin configuration: Gate (G), Drain (D), Source (S).

Pin/Terminal	Circuit Role	Design Meaning
G	Gate control input	Accepts 0–10 V logic-level drive; threshold 2.0–4.0 V ensures compatibility with 3.3 V/5 V microcontrollers
D	Drain terminal / heat sink interface	Exposed metal pad electrically connected to drain; primary thermal path to PCB copper pour
S	Source return / reference node	Common return for gate drive and load current; internal source inductance LS = 7.5 nH affects switching ringing

Key Features

Feature	Design Value
Automotive qualification	AEC-Q101 qualified - validated for lifetime reliability in engine control, transmission, and ADAS subsystems
Fully rated avalanche	Repetitive avalanche allowed up to T_jmax - eliminates need for external snubbers in inductive load switching
Dynamic dv/dt immunity	5.0 V/ns rating - suppresses false triggering during high-slew-rate transients in starter-generator or fuel pump drivers
Low R_DS(on) density	0.075 Ω in D-Pak - achieves higher current density than legacy TO-220 equivalents without derating
Lead-free & RoHS	Halogen-free, Pb-free terminations - compliant with EU ELV Directive and OEM material declarations

Applications

Engine Control Unit (ECU) Injector Driver

12 V Automotive DC-DC Converter Primary Switch

Use Scenario: High-speed, high-current switching of fuel injectors in gasoline direct injection systems.

IC Role / Device Role / Timing Role: Low-side N-channel power switch controlling injector coil current with precise pulse-width modulation.

Use Value: 17 A continuous rating and 68 A pulsed capability enable full-load injector actuation; 71 mJ E_AS absorbs coil flyback energy without clamping diodes.

Use Scenario: Primary-side synchronous rectifier or high-side switch in 12 V → 5 V/3.3 V buck converters for infotainment and ADAS ECUs.

IC Role / Device Role / Timing Role: Fast-switching power stage managing 200 kHz–1 MHz PWM duty cycles with minimal conduction and switching loss.

Use Value: 20 nC Q_g and 5.3 nC Qgs reduce gate driver power demand; 0.075 Ω R_DS(on) limits conduction loss to <1.5 W at 10 A.

Electric Power Steering (EPS) Motor Phase Switch

Body Control Module (BCM) Load Switch

Use Scenario: Half-bridge leg in three-phase inverter driving brushless EPS assist motor.

IC Role / Device Role / Timing Role: High-reliability N-channel switch handling bidirectional current and regenerative braking energy.

Use Value: 175°C T_Jmax and 175°C-rated body diode support sustained operation near hot engine compartments; 5.0 V/ns dv/dt rating prevents shoot-through during fast commutation.

Use Scenario: Solid-state replacement for electromechanical relays controlling headlights, HVAC fans, or seat heaters.

IC Role / Device Role / Timing Role: Low-side load switch with integrated protection against overcurrent and thermal runaway.

Use Value: Fully rated repetitive avalanche handles inductive kickback from fan motors; 45 W P_D at T_C = 25°C supports >15 A resistive loads with proper heatsinking.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL100N5LF6	60 V V_DS, 0.0055 Ω R_DS(on), PowerFLAT 5x6 package, lower R_DS(on) but no AEC-Q101 certification	Not qualified for safety-critical powertrain use; suitable only for non-AEC subsystems like lighting or comfort	Select when higher current density is needed and automotive qualification is not required
IRFZ44NPBF	55 V V_DS, 0.028 Ω R_DS(on), TO-220 package, commercial grade, no avalanche rating	Lacks repetitive avalanche rating and 175°C operation; unsuitable for unclamped inductive loads	Use only in cost-sensitive, non-automotive industrial applications with external protection

Compared with STL100N5LF6 and IRFZ44NPBF, AUIRFR024N uniquely combines AEC-Q101 qualification, 175°C operation, and fully rated repetitive avalanche - making it the only choice for production automotive power switching where functional safety and thermal resilience are mandatory.

Availability

AUIRFR024N is available at Aetrix Electronics and suitable for engine control units, electric power steering systems, and automotive DC-DC converters requiring stable component supply across extended vehicle lifecycles.

Supply support for AUIRFR024N 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.

AUIRFR024N belongs to the HEXFET® Automotive Power MOSFET product line, engineered specifically for high-reliability, high-temperature switching in engine, transmission, and chassis control systems.

FAQ

Is AUIRFR024N pin-compatible with AUIRFU024N?

No. AUIRFR024N uses the D-Pak (TO-252AA) package with drain-connected tab, while AUIRFU024N uses the I-Pak (TO-251AA) package with isolated tab. Footprints, thermal paths, and mounting constraints differ - PCB layout and thermal design must be revalidated for each.

What is the maximum recommended gate resistor for reliable switching?

A 24 Ω gate resistor is specified in the datasheet for switching time characterization (t_d(off) = 19 ns). For automotive applications, a 10–22 Ω resistor balances switching speed and gate oscillation damping; values below 5 Ω risk excessive gate current and ringing due to LS = 7.5 nH and LD = 4.5 nH.

Does AUIRFR024N require a gate driver IC in 12 V automotive systems?

Not strictly required: its 2.0–4.0 V V_GS(th) and 20 nC Q_g allow direct drive from 5 V microcontrollers (e.g., S32K144) with appropriate series resistance. However, a dedicated gate driver (e.g., TC1412) is recommended for high-frequency PWM (>500 kHz) or high-side configurations to ensure clean edges and minimize shoot-through risk.

Can AUIRFR024N replace IRFZ24N in existing designs?

Yes, with caveats: both share 55 V V_DS and similar R_DS(on), but AUIRFR024N offers AEC-Q101 qualification, 175°C operation, and 71 mJ E_AS vs. IRFZ24N's 41 mJ. Thermal design must be verified - R_θJC is identical (3.3°C/W), but D-Pak mounting differs from TO-220. No layout change needed if using D-Pak footprint.

AUIRFR024N Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 55 V

Current - Continuous Drain (Id) @ 25°C:: 17A (Tc)

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

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

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 20 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 370 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 45W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252AA

AUIRFR024N FAQ

1.How can I place an order for AUIRFR024N through Aetrix?

Please submit a Request for Quotation (RFQ) for AUIRFR024N 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 AUIRFR024N reliable?

The price and inventory of AUIRFR024N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRFR024N is usually 5 days.

3.What payment methods are accepted for AUIRFR024N?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRFR024N transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AUIRFR024N?

AUIRFR024N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AUIRFR024N 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 AUIRFR024N?

For technical support, including AUIRFR024N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRFR024N requirements.

6.How does Aetrix verify that AUIRFR024N is sourced from the original manufacturer or authorized distributors?

All AUIRFR024N 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 AUIRFR024N meets industry standards.

7.What is the process for return or replacement of AUIRFR024N?

All AUIRFR024N units undergo pre-shipment inspection (PSI). If there is an issue with AUIRFR024N, 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 AUIRFR024N part is unused and in its original packaging.

Return procedure for AUIRFR024N:

1.Submit a request within 90 days.

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

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