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

Infineon Technologies AUIRLR3915TRL

Name: AUIRLR3915TRL
Brand: Infineon Technologies
SKU: AUIRLR3915TRL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AUIRLR3915TRL

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: AUIRLR3915TRL.pdf

Description:: MOSFET N-CH 55V 30A DPAK

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AUIRLR3915TRL from Infineon is an automotive-grade N-channel logic-level HEXFET® Power MOSFET in D-Pak package, rated for 55 V V_DS, 12 mΩ R_DS(on) at V_GS = 10 V and 30 A continuous drain current (package-limited), with 175 °C maximum junction temperature and full avalanche rating. It serves as a high-efficiency main or synchronous rectifier switch in 12 V/24 V automotive power systems including engine control modules, body electronics, and DC-DC converters.

For engineers reviewing the AUIRLR3915TRL datasheet, AUIRLR3915TRL pinout, AUIRLR3915TRL application, or AUIRLR3915TRL equivalent, key selection criteria include its logic-level gate drive compatibility (V_GS(th) = 1.0–3.0 V), low conduction loss at 5 V drive (14 mΩ @ 5 V), robust repetitive avalanche capability (up to T_Jmax), and AEC-Q101 qualification for under-hood reliability.

Technical Context

This MOSFET employs Infineon's Stripe Planar HEXFET® process to achieve high current density and low R_DS(on) per silicon area. Its gate threshold voltage range (1.0–3.0 V) ensures reliable turn-on with standard 3.3 V or 5 V microcontroller outputs, while the 61 nC total gate charge supports fast switching with moderate gate driver strength.

The device features fully rated unclamped inductive switching capability up to 600 mJ (tested E_AS) and allows repetitive avalanche operation within thermal limits. Thermal resistance R_θJC = 1.3 °C/W enables high-power dissipation when mounted on copper-clad PCBs with proper heatsinking.

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) @ V_GS = 10 V	12 mΩ typ. - Delivers ≤ 11 W conduction loss at 30 A, enabling compact thermal design.
R_DS(on) @ V_GS = 5 V	14 mΩ max. - Ensures usable on-resistance with 5 V logic-level drive, critical for MCU-controlled switches.
I_D (Package Limited)	30 A continuous - Determined by D-Pak package thermal and bondwire limits, not silicon.
E_AS Tested	600 mJ - Validated single-pulse avalanche energy at I_AS = 30 A, L = 0.45 mH, confirming ruggedness in inductive load switching.
T_J Max	+175 °C - Enables operation in high-ambient under-hood environments without derating.
Q_g	61 nC typ. - Requires ~0.6 mA average gate current for 100 ns switching transitions at 10 kHz.

Pinout & Package

Package: D-Pak (TO-252AA), surface-mount, single-sided heat transfer via exposed drain pad. Standard footprint per Infineon AN-994.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Logic-level input controlling channel conduction; requires <200 nA leakage handling and 61 nC total charge drive.
2 (D)	Drain	Main high-side or low-side power path terminal; electrically connected to exposed metal tab for thermal and electrical sinking.
3 (S)	Source	Reference node for gate drive and current sensing; internal source inductance (7.5 nH) affects di/dt-induced voltage spikes during turn-off.

Key Features

Feature	Design Value
Automotive qualification	AEC-Q101 qualified for engine control, transmission, and body electronics applications requiring zero-failure field reliability.
Logic-level gate drive	Operates fully enhanced at V_GS ≥ 4.5 V, eliminating need for gate boosters in 5 V MCU systems.
Full avalanche rating	Rated for repetitive unclamped inductive switching up to T_Jmax, verified per Fig. 12a–12b test circuit.
Low R_DS(on) × Q_g figure of merit	~672 mΩ·nC - Balances conduction and switching losses for high-frequency (<100 kHz) DC-DC and motor drive use.
Lead-free & RoHS compliant	Meets J-STD-020 moisture sensitivity level 1 (MSL1) and Pb-free reflow profile requirements.

Applications

Engine Control Unit (ECU) Fuel Injector Driver

Automotive HVAC Blower Motor Controller

Use Scenario: High-speed, high-current switching of 12 V fuel injectors with PWM frequencies up to 20 kHz and peak currents >20 A.

IC Role / Device Role / Timing Role: Low-side power switch with integrated body diode providing freewheeling path during off-time.

Use Value: 12 mΩ R_DS(on) minimizes injector coil heating and improves fuel metering accuracy over temperature; 175 °C rating sustains operation near hot engine blocks.

Use Scenario: PWM-controlled 24 V blower motor in passenger cabin HVAC systems, operating continuously at ambient up to 85 °C.

IC Role / Device Role / Timing Role: High-side or low-side switching element in half-bridge topology, managing bidirectional airflow control.

Use Value: Logic-level gate enables direct drive from automotive MCU GPIO; repetitive avalanche rating absorbs back-EMF spikes during sudden motor stop.

12 V → 5 V/3.3 V Automotive DC-DC Converter

Body Control Module (BCM) Load Protection Switch

Use Scenario: Synchronous rectifier in buck converter supplying infotainment and ADAS subsystems from vehicle battery.

IC Role / Device Role / Timing Role: Secondary-side power switch replacing Schottky diode to reduce conduction loss and improve efficiency.

Use Value: 14 mΩ R_DS(on) at 5 V gate drive cuts rectifier loss by >60% vs. 40 V Schottky, raising conversion efficiency from 88% to >93% at 10 A output.

Use Scenario: Smart high-side load switch protecting lighting, solenoids, and sensors against overcurrent, reverse polarity, and short-circuit faults.

IC Role / Device Role / Timing Role: Protected power distribution switch with built-in current limiting and thermal shutdown.

Use Value: 30 A package rating and 175 °C T_Jmax support sustained 15 A loads in confined BCM enclosures; fast 100 ns fall time reduces fault energy during short-circuit events.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL130N5LF6AG	60 V V_DS, 1.3 mΩ R_DS(on) @ 10 V, 130 A silicon-limited ID, DFN5x6 package	Higher current density but lower thermal mass; requires multi-layer PCB for R_θJA < 40 °C/W	Preferred for space-constrained, high-efficiency 48 V mild-hybrid systems where board area is premium.
IRLR8729PBF	75 V V_DS, 7.5 mΩ R_DS(on) @ 10 V, 30 A package-limited ID, same D-Pak package	Higher breakdown voltage but higher gate charge (71 nC); no AEC-Q101 certification	Suitable for non-automotive industrial 24 V motor drives where extended V_DS margin is needed but automotive qualification is not required.

Compared with STL130N5LF6AG and IRLR8729PBF, the AUIRLR3915TRL offers optimal balance of automotive qualification, D-Pak manufacturability, and 55 V/30 A capability-making it ideal for cost-sensitive, thermally demanding 12 V/24 V automotive power stages where AEC compliance and proven field reliability are mandatory.

Availability

AUIRLR3915TRL is available at Aetrix Electronics and suitable for automotive engine control units, HVAC motor drivers, and body control module load switches requiring stable component supply across long production lifecycles.

Supply support for AUIRLR3915TRL 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 industrial control ICs, with global manufacturing and qualification infrastructure.

The AUIRLR3915TRL belongs to Infineon's automotive-qualified HEXFET® Power MOSFET product line, engineered specifically for high-reliability, high-temperature switching in 12 V and 24 V vehicle electrical systems.

FAQ

What is the maximum continuous drain current for AUIRLR3915TRL at 100°C case temperature?

The maximum continuous drain current at T_C = 100°C is 43 A (silicon-limited) per the Absolute Maximum Ratings table. However, the package-limited rating remains 30 A regardless of temperature, as thermal resistance and bondwire capacity constrain safe operation. Designers must observe both limits and apply linear derating (0.77 W/°C) beyond 25°C case temperature.

Does AUIRLR3915TRL require a gate resistor for automotive PWM applications?

Yes-a gate resistor (typically 4.7–10 Ω) is recommended to dampen ringing caused by gate-drain capacitance (C_rss = 74 pF) and internal inductances (L_S = 7.5 nH, L_D = 4.5 nH). Without it, overshoot exceeding ±16 V gate rating may occur during fast 100 ns switching, risking gate oxide damage in noisy automotive environments.

How does the body diode performance compare to discrete Schottky diodes in flyback applications?

The body diode has V_SD = 1.3 V at 30 A and t_rr = 62–93 ns, resulting in higher conduction loss than a 40 V Schottky but faster recovery than standard PN diodes. In synchronous rectification, its low Q_rr (110–170 nC) and soft recovery reduce EMI versus hard-recovery diodes, though forward drop remains higher than optimized Schottkys.

Is AUIRLR3915TRL compatible with lead-free reflow profiles per JEDEC J-STD-020?

Yes-the device is qualified for lead-free reflow with peak temperature up to 260°C for 10 seconds (1.6 mm from case), meeting MSL1 classification. The D-Pak package uses matte tin plating and passes thermal cycling (−40°C to +125°C, 1000 cycles) and humidity testing (85°C/85% RH, 1000 h) per AEC-Q101 requirements.

AUIRLR3915TRL 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:: Discontinued at Digi-Key

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 55 V

Current - Continuous Drain (Id) @ 25°C:: 30A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: -

Rds On (Max) @ Id, Vgs:: 14mOhm @ 30A, 10V

Vgs(th) (Max) @ Id:: 3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 92 nC @ 10 V

Vgs (Max):: -

Input Capacitance (Ciss) (Max) @ Vds:: 1870 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 120W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

AUIRLR3915TRL FAQ

1.How can I place an order for AUIRLR3915TRL through Aetrix?

Please submit a Request for Quotation (RFQ) for AUIRLR3915TRL 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 AUIRLR3915TRL reliable?

The price and inventory of AUIRLR3915TRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRLR3915TRL is usually 5 days.

3.What payment methods are accepted for AUIRLR3915TRL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRLR3915TRL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AUIRLR3915TRL?

AUIRLR3915TRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AUIRLR3915TRL 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 AUIRLR3915TRL?

For technical support, including AUIRLR3915TRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRLR3915TRL requirements.

6.How does Aetrix verify that AUIRLR3915TRL is sourced from the original manufacturer or authorized distributors?

All AUIRLR3915TRL 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 AUIRLR3915TRL meets industry standards.

7.What is the process for return or replacement of AUIRLR3915TRL?

All AUIRLR3915TRL units undergo pre-shipment inspection (PSI). If there is an issue with AUIRLR3915TRL, 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 AUIRLR3915TRL part is unused and in its original packaging.

Return procedure for AUIRLR3915TRL:

1.Submit a request within 90 days.

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

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