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

Infineon Technologies AUIRLL014NTR

Name: AUIRLL014NTR
Brand: Infineon Technologies
SKU: AUIRLL014NTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AUIRLL014NTR

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-261-4, TO-261AA

Datasheet:: AUIRLL014NTR.pdf

Description:: MOSFET N-CH 55V 2A SOT-223

Quantity:: RFQ Add To RFQ list

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Inventory:9,551

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Product details

Overview

AUIRLL014NTR from Infineon is an automotive-grade N-channel HEXFET® Power MOSFET in SOT-223 package, rated for 55 V V_DS, 0.14 Ω R_DS(on) at V_GS = 10 V and 2.0 A I_D, with logic-level gate drive (V_GS(th) = 1.0–2.0 V) and 150 °C operation. It serves as a robust low-side switch in automotive body electronics, including LED lighting control and motor driver stages.

For engineers reviewing the AUIRLL014NTR datasheet, AUIRLL014NTR pinout, AUIRLL014NTR application, or AUIRLL014NTR equivalent, key selection criteria include its logic-compatible gate threshold, fully avalanche-rated ruggedness, PCB-mount thermal performance (R_θJA = 90 °C/W on FR-4), and automotive qualification per AEC-Q101.

Technical Context

This MOSFET employs advanced planar silicon processing to achieve low on-resistance per die area while maintaining fast switching (t_d(on) = 5.1 ns, t_f = 2.9 ns) and high dv/dt immunity (7.2 V/ns). Its integrated body diode supports synchronous rectification and inductive load commutation in DC-DC converters and motor H-bridges.

The device is fully specified for repetitive avalanche operation up to T_Jmax = 150 °C, with E_AS = 32 mJ (single-pulse) and I_AR = 2.0 A, enabling reliable unclamped inductive switching in automotive solenoid and relay drivers without external snubbers.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V - Maximum drain-source blocking voltage; suitable for 12 V/24 V automotive systems with load dump margin.
R_DS(on) max	0.14 Ω @ V_GS = 10 V, I_D = 2.0 A - Enables <140 mW conduction loss at full current, reducing thermal stress on PCB-mount layout.
V_GS(th)	1.0–2.0 V - Logic-level gate drive compatibility with 3.3 V and 5 V microcontrollers, eliminating need for level-shifting circuitry.
I_D continuous	2.0 A @ T_A = 25 °C (FR-4 board) - Supports sustained current in compact body-control modules with minimal copper area.
Q_g	9.5–14 nC - Low gate charge enables efficient driving with standard logic-output GPIOs and reduces switching losses below 1 MHz.
E_AS	32 mJ - Single-pulse avalanche energy rating ensures survival during inductive turn-off transients in automotive actuators.
T_J range	−55 to +150 °C - Qualified for under-hood environments and meets AEC-Q101 temperature cycling and HTOL requirements.

Pinout & Package

SOT-223 (TO-261AA) surface-mount package with exposed drain pad for enhanced thermal conduction; footprint optimized for FR-4 PCB mounting using minimum recommended copper area.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Drain)	Main power path output	Internally connected to exposed metal tab; must be soldered to large copper pour for thermal management and current return.
Pin 2 (Gate)	Control input	High-impedance MOS gate requiring low-noise routing; decoupling capacitor recommended near IC driver output.
Pin 3 (Source)	Power return reference	Common source node for load current; ties to ground plane and provides reference for gate drive loop.
Pin 4 (Drain / Tab)	Thermal & electrical connection	Electrically identical to Pin 1; primary heat dissipation path-must be soldered to ≥1 in² copper for rated power handling.

Key Features

Feature	Design Value
Logic-level gate drive	V_GS(th) ≤ 2.0 V enables direct interface with automotive MCUs (e.g., S32K, RH850) without gate driver ICs.
Fully avalanche rated	Repetitive avalanche allowed up to T_Jmax; eliminates need for external clamping diodes in solenoid/relay circuits.
Dynamic dv/dt rating	7.2 V/ns immunity prevents false turn-on during high-slew noise events in engine bay wiring harnesses.
Automotive qualification	AEC-Q101 qualified with 150 °C operation and extended reliability testing-approved for safety-critical body electronics.
Lead-free & RoHS	Halogen-free, Pb-free construction compliant with automotive ELV Directive and JESD204B assembly processes.

Applications

Automotive LED Headlamp Control

Body Control Module Load Switch

Use Scenario: PWM dimming and on/off control of high-brightness LED arrays in front lighting clusters.

IC Role / Device Role / Timing Role: Low-side switching element driven by MCU PWM output; handles 2 A peak current with <1 µs switching transitions.

Use Value: Low R_DS(on) minimizes self-heating during 100% duty cycle, while logic-level gate ensures precise dimming resolution down to 1%.

Use Scenario: Power switching for door lock actuators, window lift motors, and mirror adjustment circuits.

IC Role / Device Role / Timing Role: Protected load switch interfacing between 12 V battery rail and brushed DC motor windings.

Use Value: Avalanche rating absorbs inductive kickback without external flyback diodes; 150 °C rating sustains operation in sealed module enclosures.

Automotive HVAC Blower Motor Driver

Engine Control Unit Fan Control

Use Scenario: Variable-speed control of centrifugal blower fans in climate control systems.

IC Role / Device Role / Timing Role: Half-bridge low-side switch in discrete H-bridge configuration; modulated at 20–25 kHz for acoustic noise suppression.

Use Value: Low Q_g and fast t_f reduce switching losses at high PWM frequencies, improving efficiency over legacy bipolar solutions.

Use Scenario: Radiator fan speed regulation based on coolant temperature feedback in engine management systems.

IC Role / Device Role / Timing Role: High-reliability power switch placed downstream of ECU's PWM controller; operates continuously under hood ambient up to 125 °C.

Use Value: R_θJA = 90 °C/W on FR-4 allows thermal design without heatsinks; AEC-Q101 qualification ensures long-term field reliability.

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
STL10DN5LF3	R_DS(on) = 0.12 Ω @ 4.5 V, but lower V_DS = 40 V; SOT-23-3 package limits power dissipation.	Not suitable for 24 V systems or high-energy inductive loads due to reduced breakdown and avalanche margin.	Select only for space-constrained 12 V LED drivers where peak V_DS remains <35 V.
ON Semiconductor NTMFS4C09NT1G	R_DS(on) = 0.095 Ω @ 10 V, SO-8FL package offers better thermal performance (R_θJA = 50 °C/W), but requires larger PCB area.	Better suited for higher-current (>3 A) motor drives where thermal headroom is critical.	Choose when upgrading from SOT-223 to support >2.5 A continuous load or tighter thermal budgets.

Compared with STL10DN5LF3 and NTMFS4C09NT1G, AUIRLL014NTR uniquely balances logic-level drivability, 55 V ruggedness, and SOT-223 manufacturability for cost-sensitive automotive body electronics-offering optimal trade-off between footprint, thermal capability, and system-level transient immunity.

Availability

AUIRLL014NTR is available at Aetrix Electronics and suitable for automotive LED lighting control, body control module load switching, and HVAC blower motor drivers requiring stable component supply across production lifecycles.

Supply support for AUIRLL014NTR 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.

AUIRLL014NTR belongs to Infineon's automotive-qualified HEXFET® Power MOSFET product line, designed specifically for high-reliability, thermally constrained switching in vehicle body and comfort systems.

FAQ

Is AUIRLL014NTR pin-compatible with other SOT-223 N-channel MOSFETs?

No-pin assignment follows standard SOT-223 Drain-Gate-Source-Drain (D-G-S-D) layout, but electrical parameters (especially R_DS(on), V_GS(th), and avalanche rating) differ significantly across vendors. Direct substitution requires validation of gate drive compatibility, thermal margin, and transient robustness per application.

What is the maximum PCB copper area required for full 2.0 A continuous operation?

For 2.0 A continuous current at T_A = 25 °C, Infineon specifies use of minimum recommended FR-4 footprint (see datasheet Fig. 8), which requires ≥0.5 in² total copper area connected to the drain tab. Derating applies above 70 °C ambient; thermal simulation is advised for enclosed modules.

Does AUIRLL014NTR support 3.3 V microcontroller gate drive without external level shifting?

Yes-its V_GS(th) range (1.0–2.0 V) and guaranteed R_DS(on) ≤ 0.20 Ω at V_GS = 5.0 V enable reliable enhancement-mode turn-on with 3.3 V logic outputs. However, full 2.0 A conduction requires V_GS ≥ 4.5 V; verify gate driver sink/source capability and PCB trace inductance.

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

The integrated body diode has V_SD = 1.0 V at 2.0 A and t_rr = 41–61 ns, making it suitable for low-frequency (<100 kHz) inductive flyback but less efficient than Schottky diodes in high-frequency DC-DC converters. For >500 kHz operation, external Schottky clamping is recommended to minimize conduction and recovery losses.

AUIRLL014NTR Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-261-4, TO-261AA

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:: 2A (Ta)

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

Rds On (Max) @ Id, Vgs:: 140mOhm @ 2A, 10V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 14 nC @ 10 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 230 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 1W (Ta)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SOT223-4

AUIRLL014NTR FAQ

1.How can I place an order for AUIRLL014NTR through Aetrix?

Please submit a Request for Quotation (RFQ) for AUIRLL014NTR 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 AUIRLL014NTR reliable?

The price and inventory of AUIRLL014NTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRLL014NTR is usually 5 days.

3.What payment methods are accepted for AUIRLL014NTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRLL014NTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AUIRLL014NTR?

AUIRLL014NTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AUIRLL014NTR 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 AUIRLL014NTR?

For technical support, including AUIRLL014NTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRLL014NTR requirements.

6.How does Aetrix verify that AUIRLL014NTR is sourced from the original manufacturer or authorized distributors?

All AUIRLL014NTR 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 AUIRLL014NTR meets industry standards.

7.What is the process for return or replacement of AUIRLL014NTR?

All AUIRLL014NTR units undergo pre-shipment inspection (PSI). If there is an issue with AUIRLL014NTR, 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 AUIRLL014NTR part is unused and in its original packaging.

Return procedure for AUIRLL014NTR:

1.Submit a request within 90 days.

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

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