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

Infineon Technologies AUIRLL024Z

Name: AUIRLL024Z
Brand: Infineon Technologies
SKU: AUIRLL024Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AUIRLL024Z

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: AUIRLL024Z.pdf

Description:: MOSFET N-CH 55V 5A SOT223

Quantity:: RFQ Add To RFQ list

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Inventory:2,872

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Product details

Overview

AUIRLL024Z from Infineon is an automotive-qualified N-channel logic-level HEXFET® Power MOSFET in SOT-223 package, rated for 55 V V_DS, 48 mΩ R_DS(on) (typ. at V_GS = 10 V), and 5.0 A continuous drain current at 25°C. It delivers fast switching, 150°C junction operation, and repetitive avalanche capability - optimized for low-voltage DC motor control, body electronics, and load switching in engine control units.

For engineers reviewing the AUIRLL024Z datasheet, AUIRLL024Z pinout, AUIRLL024Z application, or AUIRLL024Z equivalent, key selection criteria include its logic-level gate drive compatibility (V_GS(th) = 1.0–3.0 V), low thermal resistance (R_θJA = 45°C/W on copper PCB), and automotive-grade reliability per AEC-Q101.

Technical Context

This MOSFET employs advanced planar silicon processing to achieve ultra-low on-resistance per die area while maintaining robust safe operating area (SOA) performance up to 150°C. Its gate charge profile (Q_g = 7.0 nC typ.) and capacitance values (C_iss = 380 pF, C_oss = 66 pF at V_DS = 25 V) support efficient high-frequency switching in PWM-driven loads.

The device integrates a co-packaged body diode with t_rr = 15–23 ns and Q_rr = 9.1–14 nC, enabling reliable freewheeling in inductive circuits. Repetitive avalanche energy (E_AR) is thermally limited and validated across pulse widths (t_av) and starting junction temperatures per Fig. 15–16.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V - Withstands transients up to 55 V in 12 V automotive systems without clamping.
R_DS(on)	48 mΩ (typ. @ V_GS = 10 V, I_D = 3.0 A) - Enables <150 mW conduction loss at 5 A, reducing thermal load on PCB.
I_D (cont)	5.0 A @ T_A = 25°C - Supports sustained 5 A loads when mounted on 1-inch² copper board.
V_GS(th)	1.0–3.0 V - Fully enhanced by standard 3.3 V or 5 V microcontroller GPIOs without level-shifting.
t_r/t_f	33 ns / 15 ns - Allows >1 MHz PWM operation with minimal switching loss in buck or half-bridge topologies.
E_AS	38 mJ (tested) - Absorbs unclamped inductive energy during fault events without failure.
T_J max	+150°C - Certified for under-hood operation in engine management and transmission control modules.

Pinout & Package

Package: SOT-223 (TO-261AA), surface-mount, thermally enhanced with exposed drain pad. Mounting on ≥1 inch² copper improves power dissipation to 2.8 W.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Drain)	Main current path output	Internally connected to exposed metal tab - must be soldered to large copper pour for thermal and electrical return.
Pin 2 (Gate)	Control input	Logic-level compatible; requires <7.0 nC total charge for full enhancement - minimizes driver IC loading.
Pin 3 (Source)	Reference node	Common return for load current and gate drive reference; ties directly to system ground plane.
Pin 4 (Drain, Tab)	Primary thermal & power path	Electrically identical to Pin 1; provides mechanical anchoring and thermal conduction to PCB.

Key Features

Feature	Design Value
Automotive qualification	AEC-Q101 qualified - validated for temperature cycling, humidity, and mechanical shock per automotive reliability standards.
Logic-level gate drive	V_GS(th) ≤ 3.0 V - Eliminates need for external gate drivers in MCU-based body control modules.
Repetitive avalanche rating	E_AR specified up to T_Jmax - Enables robust operation in unclamped inductive switching (e.g., solenoid drivers).
Fast body diode	t_rr = 15 ns, Q_rr = 9.1 nC - Reduces voltage overshoot and EMI in flyback and H-bridge freewheeling paths.
Thermal derating	0.02 W/°C linear derating above 25°C ambient - enables predictable power handling on FR-4 or copper-clad boards.

Applications

Engine Control Unit (ECU) Fuel Injector Driver

Body Control Module (BCM) Window Lift Motor Switch

Use Scenario: Driving 12 V solenoid-type fuel injectors with 2–5 ms pulse width modulation in gasoline direct injection systems.

IC Role / Device Role / Timing Role: High-side or low-side switch controlling injector coil current; handles repetitive 5 A peak pulses with fast turn-off to prevent dribble.

Use Value: Low R_DS(on) and fast t_f minimize energy loss and ensure precise fuel metering accuracy across -40°C to +150°C ambient.

Use Scenario: Bidirectional DC motor control for power window lift/lower functions in passenger door modules.

IC Role / Device Role / Timing Role: Half-bridge low-side switch; commutates motor current with body-diode freewheeling during direction reversal.

Use Value: Logic-level gate and low Q_rr reduce MCU GPIO stress and suppress voltage spikes during motor stall or reversal.

Transmission Control Unit (TCU) Solenoid Valve Actuator

Advanced Driver Assistance Systems (ADAS) Camera Power Sequencing

Use Scenario: Driving proportional pressure-control solenoids in 8-speed automatic transmissions requiring precise 0–5 A current regulation.

IC Role / Device Role / Timing Role: PWM-controlled current sink; operates in linear region during closed-loop current control phase.

Use Value: 150°C T_J rating and SOA compliance allow stable operation inside hot transmission control housings without derating.

Use Scenario: Controlled power-up/down sequencing of CMOS image sensors and ISP processors in rear-view or surround-view camera modules.

IC Role / Device Role / Timing Role: Load switch enabling/disabling 3.3 V or 5 V rail with controlled slew rate and inrush limiting.

Use Value: Ultra-low leakage (I_DSS ≤ 250 µA @ 125°C) prevents standby current accumulation across dozens of cameras in vehicle networks.

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	R_DS(on) = 4.5 mΩ @ V_GS = 10 V (lower), but SOT-23-3 package limits I_D to 3.5 A cont.	Better for space-constrained 3 A loads; unsuitable for 5 A continuous automotive loads due to thermal limits.	Select only if board area is critical and current demand stays ≤3.5 A with forced airflow.
ON Semiconductor NTMFS4C09NT1G	R_DS(on) = 5.8 mΩ @ V_GS = 10 V, SO-8FL package; higher thermal resistance (R_θJA = 62°C/W).	Requires larger PCB footprint and heatsinking for same 5 A load; not qualified to AEC-Q101.	Use only in non-automotive industrial applications where AEC-Q101 is not mandated.

Compared with STL130N5LF6AG and NTMFS4C09NT1G, AUIRLL024Z uniquely balances 5 A capability, SOT-223 thermal performance, AEC-Q101 compliance, and logic-level drive - making it the preferred choice for cost-sensitive, thermally constrained automotive body and powertrain modules.

Availability

AUIRLL024Z is available at Aetrix Electronics and suitable for engine control units, body control modules, transmission control units, and ADAS camera power sequencing requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AUIRLL024Z 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 quality certification infrastructure.

AUIRLL024Z belongs to Infineon's automotive-qualified HEXFET® Power MOSFET product line, engineered specifically for high-reliability, thermally demanding 12 V/24 V vehicle subsystems including engine management, chassis control, and electrified body electronics.

FAQ

Is AUIRLL024Z pin-compatible with other SOT-223 MOSFETs?

No - while the SOT-223 outline is standardized, pin assignments vary. AUIRLL024Z uses Drain-Gate-Source-Drain (D-G-S-D) configuration with pins 1 and 4 both connected to drain. Substituting non-Infineon SOT-223 MOSFETs without verifying pin mapping risks short-circuit or functional failure.

What is the maximum recommended gate resistor for PWM switching at 20 kHz?

A 10 Ω series gate resistor is recommended for 20 kHz PWM in automotive environments. This value balances switching speed (t_r/t_f ~33/15 ns) against EMI suppression and gate driver stress, assuming a 5 V MCU output with ≤20 mA drive capability.

Can AUIRLL024Z be used in parallel configurations?

Yes - its positive R_DS(on) temperature coefficient (0.049 V/°C) enables inherent current sharing. For two devices in parallel, use matched gate resistors (≤5% tolerance) and symmetrical PCB layout to minimize thermal imbalance and ensure balanced conduction up to 10 A total.

Does AUIRLL024Z require external gate protection diodes?

No - the device includes integrated gate oxide protection and supports ±16 V V_GS rating. However, a 10 kΩ pull-down resistor from gate to source is recommended to prevent spurious turn-on during MCU reset or power-up sequences in automotive harness environments.

AUIRLL024Z Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

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

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:: 5A (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 60mOhm @ 3A, 10V

Vgs(th) (Max) @ Id:: 3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 11 nC @ 5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 380 pF @ 25 V

FET Feature:: -

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

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

AUIRLL024Z FAQ

1.How can I place an order for AUIRLL024Z through Aetrix?

Please submit a Request for Quotation (RFQ) for AUIRLL024Z 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 AUIRLL024Z reliable?

The price and inventory of AUIRLL024Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRLL024Z is usually 5 days.

3.What payment methods are accepted for AUIRLL024Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRLL024Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AUIRLL024Z?

AUIRLL024Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AUIRLL024Z 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 AUIRLL024Z?

For technical support, including AUIRLL024Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRLL024Z requirements.

6.How does Aetrix verify that AUIRLL024Z is sourced from the original manufacturer or authorized distributors?

All AUIRLL024Z 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 AUIRLL024Z meets industry standards.

7.What is the process for return or replacement of AUIRLL024Z?

All AUIRLL024Z units undergo pre-shipment inspection (PSI). If there is an issue with AUIRLL024Z, 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 AUIRLL024Z part is unused and in its original packaging.

Return procedure for AUIRLL024Z:

1.Submit a request within 90 days.

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

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