Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Infineon Technologies AUIRF3205ZSTRL

Name: AUIRF3205ZSTRL
Brand: Infineon Technologies
SKU: AUIRF3205ZSTRL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: AUIRF3205ZSTRL

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: AUIRF3205ZSTRL.pdf

Description:: MOSFET N-CH 55V 75A D2PAK

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,228

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

AUIRF3205ZSTRL from Infineon is an automotive-grade N-channel enhancement-mode HEXFET® Power MOSFET in D2PAK (TO-263) package, rated for 55 V V_DS, 6.5 mΩ R_DS(on) max at V_GS = 10 V, 75 A continuous drain current (package-limited), and 175°C junction operation. It delivers ultra-low conduction loss and fast switching for high-efficiency DC-DC converters and motor control in engine management systems.

For engineers reviewing the AUIRF3205ZSTRL datasheet, AUIRF3205ZSTRL pinout, AUIRF3205ZSTRL application, or AUIRF3205ZSTRL equivalent, key selection criteria include its 175°C thermal rating, 250 mJ tested single-pulse avalanche energy, 76 nC total gate charge, and D2PAK thermal performance on PCB-mounted FR-4.

Technical Context

This MOSFET employs advanced silicon processing to achieve low R_DS(on) per die area while maintaining robust avalanche capability-repetitive avalanche rated up to T_jmax with validated thermal limits. Its body diode exhibits 28 ns reverse recovery time and 25 nC Q_rr at 100 A/µs di/dt, enabling efficient synchronous rectification and freewheeling in hard-switched topologies.

The device operates with a gate threshold voltage of 2.0–4.0 V and forward transconductance of 71 S at V_DS = 25 V, supporting stable PWM control across automotive temperature range (−55°C to +175°C). Junction-to-case thermal resistance is 0.90°C/W, and PCB-mounted R_θJA is 40°C/W-critical for thermally constrained under-hood applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V - Withstands peak bus voltages in 42 V automotive systems and 24 V industrial supplies without breakdown.
R_DS(on) max	6.5 mΩ @ V_GS = 10 V - Enables ≤0.5 W conduction loss at 75 A, reducing heatsink requirements in high-current switches.
I_D (pkg)	75 A continuous @ T_C = 25°C - Matches D2PAK package thermal limits for sustained power delivery in motor drivers.
E_AS (tested)	250 mJ - Confirmed unclamped inductive switching margin supports robustness against load dump and inductive kickback.
Q_g	76 nC typ. - Determines gate drive power and switching speed; compatible with standard 1–2 A gate drivers at ≤100 kHz.
T_J max	+175°C - Certified for under-hood use where ambient exceeds 125°C, eliminating derating penalties in engine bay modules.
t_r/t_f	95 ns / 67 ns - Fast edge rates minimize switching losses in buck converters and half-bridge inverters.

Pinout & Package

Package: D2PAK (TO-263), surface-mount, isolated tab (drain-connected), 3-pin configuration with exposed copper pad for thermal transfer to PCB.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (G)	Gate	Controls channel conduction; requires ≥10 V for full enhancement; gate capacitance (C_iss = 3450 pF) dictates drive strength needs.
Pin 2 (D)	Drain	High-side switch node; electrically connected to exposed metal tab-must be isolated from heatsink unless referenced to same potential.
Pin 3 (S)	Source	Power return path and gate reference; internal source inductance (L_S = 7.5 nH) affects di/dt-induced ringing during turn-off.

Key Features

Feature	Design Value
Ultra-low R_DS(on)	4.9 mΩ typical at 10 V gate drive-reduces I²R losses by >30% vs. legacy 55 V MOSFETs in 12 V starter-generator circuits.
Repetitive avalanche rating	Validated up to T_jmax with thermal modeling-enables reliable operation in unclamped inductive loads like fuel injector drivers without external snubbers.
175°C junction rating	Qualified per AEC-Q101-supports placement near engines or exhaust manifolds without thermal shutdown in ECU and transmission control units.
Lead-free & RoHS compliant	Meets automotive environmental standards; compatible with Pb-free reflow profiles (peak 260°C, 10 s).

Applications

Engine Control Unit (ECU) Fuel Injector Driver

Automotive DC-DC Converter (48 V → 12 V)

Use Scenario: High-speed switching of solenoid injectors in gasoline direct injection systems with 1–5 ms pulse widths and 10–20 A peak current.

IC Role / Device Role / Timing Role: Low-side power switch controlling injector coil energization/de-energization; body diode handles flyback energy.

Use Value: 28 ns t_rr and 25 nC Q_rr minimize voltage overshoot and EMI during diode commutation, improving EMC compliance.

Use Scenario: Primary-side synchronous rectifier in bidirectional buck-boost converter for 48 V mild hybrid architectures.

IC Role / Device Role / Timing Role: High-current, low-loss power switch operating at 100–200 kHz with forced-air or conduction-cooled PCB layout.

Use Value: 6.5 mΩ R_DS(on) and 40°C/W PCB R_θJA enable >96% efficiency at 50 A output without active cooling.

Electric Power Steering (EPS) Motor Phase Leg

Commercial Vehicle HVAC Blower Controller

Use Scenario: Half-bridge phase leg in 3-phase inverter driving brushless DC motor (≤1.5 kW) with field-oriented control.

IC Role / Device Role / Timing Role: High-side and low-side switching element; must withstand 100 A pulsed currents and 175°C ambient.

Use Value: 440 A pulsed drain rating and 250 mJ avalanche energy ensure survival during motor stall and regenerative braking events.

Use Scenario: PWM-controlled blower fan in heavy-duty truck cab HVAC, operating continuously at 40–60 A with variable speed demand.

IC Role / Device Role / Timing Role: Single-ended high-side switch with integrated thermal protection via junction sensing.

Use Value: 175°C T_J rating eliminates need for external thermal sensors; 75 A package limit matches typical blower motor surge requirements.

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
STL220N5LF8AG	55 V, 2.2 mΩ R_DS(on), 120 A, PowerFLAT 8x8 package; lower R_DS(on) but higher Q_g (120 nC)	Better conduction loss but slower switching; requires stronger gate driver; not automotive-qualified	Select when lowest on-resistance is critical and thermal design allows larger gate drive; verify AEC-Q101 compliance separately.
IRF3205PbF	55 V, 8.0 mΩ R_DS(on), TO-220AB package; no automotive qualification; 150°C T_J max	Lower cost, but lacks 175°C rating and repetitive avalanche validation for under-hood use	Acceptable for non-automotive 24 V industrial motor drives where ambient < 105°C and transient stress is limited.

Compared with STL220N5LF8AG and IRF3205PbF, AUIRF3205ZSTRL uniquely balances ultra-low R_DS(on), automotive qualification, and proven avalanche ruggedness-making it optimal for safety-critical, thermally aggressive environments where reliability trumps marginal conduction gain.

Availability

AUIRF3205ZSTRL is available at Aetrix Electronics and suitable for engine control units, 48 V DC-DC converters, electric power steering inverters, and commercial vehicle HVAC controllers requiring stable component supply across extended automotive lifecycles.

Supply support for AUIRF3205ZSTRL 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.

AUIRF3205ZSTRL 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 AUIRF3205ZSTRL pin-compatible with the non-automotive IRF3205?

No. While both share the same pinout (G-D-S), AUIRF3205ZSTRL uses the D2PAK (TO-263) package, whereas IRF3205 is in TO-220AB. The D2PAK has different mounting geometry, thermal pad layout, and solder footprint-requiring PCB redesign. Electrical specs also differ: AUIRF3205ZSTRL has tighter R_DS(on) (6.5 mΩ vs. 8.0 mΩ) and 175°C rating versus 150°C.

What is the maximum recommended gate resistor for driving AUIRF3205ZSTRL at 100 kHz?

For 100 kHz PWM with minimal switching loss and gate ringing, a 6.8 Ω series gate resistor is validated in the datasheet (td(off) = 45 ns, tf = 67 ns). Lower values (≤2.2 Ω) improve speed but risk overshoot due to L_S = 7.5 nH and C_iss = 3450 pF; higher values (>10 Ω) increase turn-off losses disproportionately. Use gate driver ICs capable of ±2 A peak current.

Does AUIRF3205ZSTRL require a negative gate voltage for safe turn-off in high-dV/dt environments?

No. The device's V_GS(th) is 2.0–4.0 V and gate oxide is rated for ±20 V. A 0 V gate drive fully turns off the MOSFET. However, in high-noise motor drive applications, applying −5 V improves noise immunity and prevents spurious turn-on caused by Miller coupling-though not required for basic functionality per datasheet specifications.

Can AUIRF3205ZSTRL be used in parallel configurations?

Yes-its positive R_DS(on) temperature coefficient (normalized R_DS(on) rises with T_J) enables inherent current sharing. Parallel operation requires matched gate drive paths, symmetrical PCB layout, and individual 1–2 Ω gate resistors to damp oscillation. Derate total current by 15% for thermal imbalance; maximum parallel count is 4 devices with forced-air cooling per Infineon application note AN-994.

AUIRF3205ZSTRL Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

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:: 75A (Tc)

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

Rds On (Max) @ Id, Vgs:: 6.5mOhm @ 66A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 110 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 3450 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 170W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

AUIRF3205ZSTRL FAQ

1.How can I place an order for AUIRF3205ZSTRL through Aetrix?

Please submit a Request for Quotation (RFQ) for AUIRF3205ZSTRL 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 AUIRF3205ZSTRL reliable?

The price and inventory of AUIRF3205ZSTRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRF3205ZSTRL is usually 5 days.

3.What payment methods are accepted for AUIRF3205ZSTRL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRF3205ZSTRL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AUIRF3205ZSTRL?

AUIRF3205ZSTRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AUIRF3205ZSTRL 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 AUIRF3205ZSTRL?

For technical support, including AUIRF3205ZSTRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRF3205ZSTRL requirements.

6.How does Aetrix verify that AUIRF3205ZSTRL is sourced from the original manufacturer or authorized distributors?

All AUIRF3205ZSTRL 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 AUIRF3205ZSTRL meets industry standards.

7.What is the process for return or replacement of AUIRF3205ZSTRL?

All AUIRF3205ZSTRL units undergo pre-shipment inspection (PSI). If there is an issue with AUIRF3205ZSTRL, 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 AUIRF3205ZSTRL part is unused and in its original packaging.

Return procedure for AUIRF3205ZSTRL:

1.Submit a request within 90 days.

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

Tech Hub

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…

2026-07-08 Output Capacitor Selection for High-Current ASIC Vcore Rails

Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…

2026-07-07 High-Current ASIC Core Power Supply Design: 12-Phase Buck, PMBus and Dynamic Load Response

Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …

2026-07-06 Voltage Regulator: Types, Circuits, Testing and Selection Guide

Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.

2026-06-30 Amplifiers Explained: Types, Circuits, Gain, Classes and Applications

Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…