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

Infineon Technologies AUIRLR2905TRL

Name: AUIRLR2905TRL
Brand: Infineon Technologies
SKU: AUIRLR2905TRL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AUIRLR2905TRL

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: AUIRLR2905TRL.pdf

Description:: MOSFET N-CH 55V 42A DPAK

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Product details

Overview

AUIRLR2905TRL from Infineon is an automotive-grade N-channel D-Pak (TO-252AA) HEXFET® Power MOSFET with 55 V V_DS, 27 mΩ R_DS(on) at V_GS = 10 V, and 42 A continuous drain current at T_C = 25°C. It features logic-level gate drive, 175°C junction rating, full avalanche capability, and is qualified per AEC-Q101 for engine control, DC-DC converters, and motor drivers in under-hood automotive systems.

For engineers reviewing the AUIRLR2905TRL datasheet, AUIRLR2905TRL pinout, AUIRLR2905TRL application, or AUIRLR2905TRL equivalent, key selection criteria include its 27 mΩ on-resistance at 10 V gate drive, 160 A pulsed drain rating, 48 nC total gate charge, 1.4 °C/W junction-to-case thermal resistance, and validated operation up to 175°C junction temperature in automotive power switching designs.

Technical Context

This MOSFET employs advanced planar silicon processing to achieve low specific on-resistance while maintaining rugged dynamic performance. Its gate threshold voltage (1.0–2.0 V) enables direct interface with 3.3 V/5 V microcontrollers, and its 25 A avalanche current rating supports unclamped inductive switching in solenoid and relay drivers.

The device integrates a fast-recovery body diode (t_rr = 80–120 ns, Q_rr = 210–320 nC) and exhibits stable R_DS(on) over temperature (0.070 V/°C dV(BR)_DSS/dT_J). Dynamic dV/dt immunity of 5.0 V/ns ensures robustness against parasitic turn-on in high-noise automotive environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V - Maximum blocking voltage for 12 V/24 V automotive battery rail protection and load switching
R_DS(on) max	27 mΩ @ V_GS = 10 V, I_D = 25 A - Enables <1.1 W conduction loss at 42 A, reducing heatsink requirements
I_D continuous	42 A @ T_C = 25°C - Supports high-current DC-DC phase legs and starter motor interface circuits
Q_g	48 nC - Determines gate driver strength requirement; compatible with standard 1–2 A peak gate drivers
t_r/t_f	84 ns / 15 ns - Enables >200 kHz switching in synchronous buck converters without excessive switching loss
T_J max	175°C - Certified for under-hood operation in engine control units and transmission modules
E_AS	200 mJ (tested) - Allows safe energy absorption during inductive load turn-off without external snubbers

Pinout & Package

D-Pak (TO-252AA) package with exposed drain pad for thermal enhancement and mechanical stability on PCB. Standard 3-pin surface-mount configuration optimized for high-current automotive power stages.

Pin/Terminal	Circuit Role	Design Meaning
G (Gate)	Control input	Logic-level compatible (V_GS(th) = 1.0–2.0 V); requires <48 nC charge for full enhancement
D (Drain)	High-side or low-side power path	Internally connected to exposed copper pad; primary thermal and current path to PCB ground plane
S (Source)	Reference node / return path	Provides Kelvin sense point for current monitoring; ties to system ground or shunt resistor

Key Features

Feature	Design Value
Automotive qualification	AEC-Q101 certified for engine control, transmission, and ADAS power stages
Logic-level gate drive	Operates fully enhanced at 4.0 V V_GS (R_DS(on) ≤ 40 mΩ), eliminating need for gate boosters
Full avalanche rating	Repetitive avalanche allowed up to T_Jmax; 25 A I_AR and 11 mJ E_AR support robust inductive switching
Thermal performance	R_θJC = 1.4 °C/W enables >80 W power dissipation with minimal heatsinking in D-Pak footprint
Body diode speed	t_rr = 80–120 ns and Q_rr = 210–320 nC reduce cross-conduction loss in synchronous rectification

Applications

Engine Control Unit (ECU) Load Switch

Automotive DC-DC Converter

Use Scenario: High-side switching of fuel injector or ignition coil drivers in gasoline/diesel ECUs.

IC Role / Device Role / Timing Role: Power switch controlling 12 V/24 V inductive loads with precise PWM timing and fast turn-off.

Use Value: 175°C rating ensures reliability near hot engine blocks; 5.0 V/ns dV/dt immunity prevents false triggering during cranking transients.

Use Scenario: High-efficiency synchronous rectifier in 48 V–12 V bidirectional DC-DC converters for mild hybrid vehicles.

IC Role / Device Role / Timing Role: Low-side switch in synchronous buck topology operating at 200–300 kHz.

Use Value: 27 mΩ R_DS(on) and 15 ns fall time minimize conduction and switching losses, achieving >95% efficiency at 30 A output.

Electric Power Steering (EPS) Motor Driver

Automotive HVAC Blower Control

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

IC Role / Device Role / Timing Role: Phase-leg switch handling 42 A peak current with short-circuit protection and fault reporting.

Use Value: Fully avalanche-rated design absorbs motor regeneration energy during emergency stop; 160 A pulsed rating supports torque surge demands.

Use Scenario: PWM-controlled blower motor driver in climate control systems.

IC Role / Device Role / Timing Role: Low-side switch modulating 12 V motor current at 1–20 kHz.

Use Value: Logic-level gate simplifies MCU interface; 1.3 V V_SD body diode forward drop reduces freewheeling loss during PWM off-time.

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
STL220N4LF6AG	60 V V_DS, 2.2 mΩ R_DS(on) @ 10 V, DFN5x6 package, lower R_DS(on) but higher gate charge (120 nC)	Better conduction loss at high current; requires stronger gate driver and tighter layout due to DFN thermal constraints	Preferred for space-constrained 48 V systems where board area is critical and gate drive capability exists
IPB031N06N3G	60 V V_DS, 3.1 mΩ R_DS(on) @ 10 V, TO-263 package, 70 nC Q_g, AEC-Q101 qualified	Lower on-resistance and higher current rating (120 A), but larger footprint and higher cost	Selected when thermal margin is insufficient with D-Pak and system allows TO-263 mounting

Compared with STL220N4LF6AG and IPB031N06N3G, AUIRLR2905TRL offers optimal balance of proven D-Pak manufacturability, 27 mΩ on-resistance, 48 nC gate charge, and AEC-Q101 compliance-making it ideal for cost-sensitive, thermally constrained 12 V/24 V automotive power stages requiring field-proven reliability.

Availability

AUIRLR2905TRL is available at Aetrix Electronics and suitable for automotive engine control units, DC-DC converters, electric power steering systems, and HVAC blower modules requiring stable component supply across extended vehicle lifecycles.

Supply support for AUIRLR2905TRL 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 global semiconductor leader specializing in power management, automotive electronics, and industrial control solutions, with core expertise in silicon and wide-bandgap technologies.

AUIRLR2905TRL belongs to the AUIR automotive HEXFET® Power MOSFET family, engineered specifically for high-reliability, high-temperature power switching in engine, transmission, and chassis control systems.

FAQ

What is the maximum allowable gate-to-source voltage for AUIRLR2905TRL?

The absolute maximum V_GS is ±16 V. Operation beyond this risks permanent gate oxide damage. For reliable long-term use, gate drive should be limited to –12 V to +12 V, with transient spikes clamped by Zener diodes if driving inductive loads with high dv/dt.

Can AUIRLR2905TRL be used in a high-side switch configuration?

Yes-it supports high-side switching when paired with a bootstrap or isolated gate driver capable of delivering ≥10 V above the source potential. Its logic-level threshold and 16 V max V_GS allow compatibility with common 12 V gate drive rails in automotive high-side applications.

How does the body diode performance impact synchronous rectification?

The body diode has t_rr = 80–120 ns and Q_rr = 210–320 nC at 25°C, enabling efficient freewheeling in synchronous buck converters. Low Q_rr minimizes reverse recovery loss, while fast t_rr reduces shoot-through risk during dead-time transitions.

Is thermal derating required when operating above 25°C case temperature?

Yes-linear derating begins at 25°C with a factor of 0.71 W/°C. At T_C = 100°C, maximum power dissipation drops to ~58 W. PCB copper area, solder mask opening, and thermal vias must be designed to maintain T_C ≤ 100°C under full 42 A load to avoid exceeding 175°C T_J.

AUIRLR2905TRL Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

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

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 55 V

Current - Continuous Drain (Id) @ 25°C:: 42A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4V, 10V

Rds On (Max) @ Id, Vgs:: 27mOhm @ 25A, 10V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 48 nC @ 5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 1700 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 110W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252AA (DPAK)

AUIRLR2905TRL FAQ

1.How can I place an order for AUIRLR2905TRL through Aetrix?

Please submit a Request for Quotation (RFQ) for AUIRLR2905TRL 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 AUIRLR2905TRL reliable?

The price and inventory of AUIRLR2905TRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRLR2905TRL is usually 5 days.

3.What payment methods are accepted for AUIRLR2905TRL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRLR2905TRL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AUIRLR2905TRL?

AUIRLR2905TRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AUIRLR2905TRL 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 AUIRLR2905TRL?

For technical support, including AUIRLR2905TRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRLR2905TRL requirements.

6.How does Aetrix verify that AUIRLR2905TRL is sourced from the original manufacturer or authorized distributors?

All AUIRLR2905TRL 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 AUIRLR2905TRL meets industry standards.

7.What is the process for return or replacement of AUIRLR2905TRL?

All AUIRLR2905TRL units undergo pre-shipment inspection (PSI). If there is an issue with AUIRLR2905TRL, 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 AUIRLR2905TRL part is unused and in its original packaging.

Return procedure for AUIRLR2905TRL:

1.Submit a request within 90 days.

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

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