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

Infineon Technologies AUIRFZ24NSTRR

Name: AUIRFZ24NSTRR
Brand: Infineon Technologies
SKU: AUIRFZ24NSTRR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AUIRFZ24NSTRR

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: AUIRFZ24NSTRR.pdf

Description:: MOSFET N-CH 55V 17A DPAK

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Product details

Overview

AUIRFZ24NSTRR from Infineon is an automotive-grade N-channel enhancement-mode Power MOSFET in D2-Pak (TO-263AB) package, rated for 55 V V_DS, 17 A continuous drain current at T_C = 25°C, and 0.07 Ω R_DS(on) at V_GS = 10 V. It operates up to 175°C junction temperature, features fully rated repetitive avalanche capability (4.5 mJ), and is optimized for high-reliability DC-DC converters and motor control in engine management systems.

For engineers reviewing the AUIRFZ24NSTRR datasheet, AUIRFZ24NSTRR pinout, AUIRFZ24NSTRR application, or AUIRFZ24NSTRR equivalent, key selection criteria include its 68 A pulsed drain rating, 20 nC total gate charge, 55 V breakdown voltage, fast switching (4.9 ns t_d(on), 27 ns t_f), and automotive qualification per AEC-Q101.

Technical Context

This HEXFET® device uses advanced planar silicon processing to achieve low on-resistance density and robust dynamic dV/dt (6.8 V/ns) and dI/dt capability. Its gate threshold voltage (2.0–4.0 V) ensures stable turn-on under automotive supply variations, while the 175°C operating temperature supports placement near hot engine compartments.

The MOSFET integrates a fast, low-loss body diode with 1.3 V forward voltage at 10 A and 56–83 ns reverse recovery time. Its safe operating area (SOA) is defined up to 10 ms single-pulse, limited by R_DS(on) at high V_DS, and validated for unclamped inductive switching with 71 mJ single-pulse avalanche energy.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V - Withstands peak transients in 12 V automotive systems without clamping.
R_DS(on) max	0.07 Ω @ V_GS = 10 V, I_D = 10 A - Enables <1.2 W conduction loss at 14 A, reducing heatsink requirements.
I_D continuous	17 A @ T_C = 25°C - Supports high-current loads such as fuel pump drivers and radiator fan controllers.
Q_g	20 nC - Compatible with standard gate drivers; enables efficient 100 kHz+ switching in buck converters.
E_AS	71 mJ - Absorbs inductive energy during fault events without failure, critical for solenoid and relay drive.
T_J max	175°C - Meets under-hood thermal requirements without derating in ambient up to 125°C.
dv/dt rating	6.8 V/ns - Resists false turn-on during high-noise engine cranking or load dump conditions.

Pinout & Package

Package: D2-Pak (TO-263AB), surface-mount, isolated drain tab, thermally enhanced for PCB heat transfer.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Control terminal; requires ≤20 V absolute max; 5.3 nC Qgs enables fast, low-loss turn-on.
2 (D)	Drain	Main power output; electrically connected to exposed copper tab for thermal and current path integrity.
3 (S)	Source	Reference node for gate drive; internal source inductance (7.5 nH) impacts high-speed switching ringing.

Key Features

Feature	Design Value
Fully avalanche rated	Repetitive avalanche energy of 4.5 mJ up to T_jmax - eliminates need for external snubbers in inductive load switching.
175°C operation	Rated junction temperature enables direct mounting on hot chassis or near exhaust components without thermal throttling.
Low R_DS(on) density	0.07 Ω in D2-Pak - achieves same current handling as larger TO-220 devices, saving board space in compact ECUs.
Fast switching	4.9 ns t_d(on), 27 ns t_f - reduces switching losses in 200 kHz DC-DC stages used in ADAS power supplies.
Automotive qualified	AEC-Q101 certified - validated for vibration, thermal cycling, and humidity resistance required in powertrain modules.

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.

IC Role / Device Role / Timing Role: Main power switch; handles 17 A peak pulses with sub-30 ns fall time to minimize injection timing jitter.

Use Value: Low Q_gd/Q_gs ratio (7.6/5.3 nC) ensures clean gate drive response, enabling precise fuel metering across temperature.

Use Scenario: Bidirectional PWM control of 24 V blower motors in climate control systems.

IC Role / Device Role / Timing Role: Half-bridge high-side switch; leverages 175°C rating to operate adjacent to heater cores.

Use Value: Body diode t_rr = 56–83 ns and Q_rr = 120–180 nC reduce cross-conduction losses during synchronous rectification.

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

Transmission Solenoid Driver Module

Use Scenario: Primary switch in synchronous buck converter powering infotainment and ADAS subsystems.

IC Role / Device Role / Timing Role: High-efficiency main FET; R_DS(on) = 0.07 Ω minimizes conduction loss at 10–15 A load currents.

Use Value: C_iss = 370 pF and C_oss = 140 pF enable stable operation with common gate drivers like UCC27531.

Use Scenario: Driving 12 V transmission pressure control solenoids requiring 2 A continuous, 10 A pulsed current.

IC Role / Device Role / Timing Role: Protected high-side driver; avalanche rating absorbs back-EMF during rapid solenoid de-energization.

Use Value: E_AS = 71 mJ allows >100,000 cycles of unclamped inductive switching without degradation.

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
STL220N4F7AG	40 V V_DS, 0.0037 Ω R_DS(on), PowerFLAT 5x6 package	Limited to 40 V systems; unsuitable for 12 V load-dump transient immunity	Select only for low-voltage, high-current battery management where 55 V margin is unnecessary.
IRFZ44NPBF	55 V V_DS, 0.028 Ω R_DS(on), TO-220 package, commercial grade	No AEC-Q101 qualification; 150°C T_J max; higher thermal resistance	Acceptable for non-automotive industrial controls but not for under-hood deployment.

Compared with STL220N4F7AG and IRFZ44NPBF, AUIRFZ24NSTRR uniquely balances 55 V ruggedness, automotive qualification, and D2-Pak thermal performance-making it the only option qualified for engine bay use with full avalanche protection at production volume.

Availability

AUIRFZ24NSTRR is available at Aetrix Electronics and suitable for engine control units, HVAC motor drives, automotive DC-DC converters, and transmission solenoid modules requiring stable component supply across extended vehicle lifecycles.

Supply support for AUIRFZ24NSTRR 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 microcontrollers, and sensor solutions, with global manufacturing and automotive certification infrastructure.

AUIRFZ24NSTRR belongs to Infineon's HEXFET® automotive power MOSFET product line, designed specifically for high-reliability, high-temperature switching in engine, transmission, and chassis control systems.

FAQ

Is AUIRFZ24NSTRR pin-compatible with AUIRFZ24NS?

Yes - both share identical D2-Pak (TO-263AB) footprint and pinout (G-D-S). The "TRR" suffix denotes tape-and-reel packaging (800 pcs/reel), while AUIRFZ24NS is supplied in tube format; electrical and thermal specs are identical.

What is the maximum recommended gate resistor for 100 kHz switching?

A 24 Ω gate resistor is validated per datasheet Fig. 10, yielding 4.9 ns t_d(on) and 27 ns t_f. For 100 kHz operation, this value balances switching speed and gate oscillation damping; values below 15 Ω risk ringing due to 7.5 nH internal source inductance.

Does AUIRFZ24NSTRR require a heatsink in a 17 A continuous application?

Yes - at 17 A and 0.07 Ω R_DS(on), conduction loss is ~20 W. With R_θJC = 3.3°C/W and R_θJA = 40°C/W, a heatsink maintaining T_C ≤ 100°C is required to keep T_J ≤ 175°C under still-air conditions.

Can AUIRFZ24NSTRR replace IRFZ24N in existing designs?

No - IRFZ24N is commercial-grade (150°C T_J, no AEC-Q101), TO-220 packaged, and lacks repetitive avalanche rating. Substitution requires requalification for automotive thermal, reliability, and transient immunity requirements.

AUIRFZ24NSTRR 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:: 17A (Tc)

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

Rds On (Max) @ Id, Vgs:: 70mOhm @ 10A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 20 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 370 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 3.8W (Ta), 45W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

AUIRFZ24NSTRR FAQ

1.How can I place an order for AUIRFZ24NSTRR through Aetrix?

Please submit a Request for Quotation (RFQ) for AUIRFZ24NSTRR 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 AUIRFZ24NSTRR reliable?

The price and inventory of AUIRFZ24NSTRR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRFZ24NSTRR is usually 5 days.

3.What payment methods are accepted for AUIRFZ24NSTRR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRFZ24NSTRR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AUIRFZ24NSTRR?

AUIRFZ24NSTRR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AUIRFZ24NSTRR 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 AUIRFZ24NSTRR?

For technical support, including AUIRFZ24NSTRR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRFZ24NSTRR requirements.

6.How does Aetrix verify that AUIRFZ24NSTRR is sourced from the original manufacturer or authorized distributors?

All AUIRFZ24NSTRR 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 AUIRFZ24NSTRR meets industry standards.

7.What is the process for return or replacement of AUIRFZ24NSTRR?

All AUIRFZ24NSTRR units undergo pre-shipment inspection (PSI). If there is an issue with AUIRFZ24NSTRR, 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 AUIRFZ24NSTRR part is unused and in its original packaging.

Return procedure for AUIRFZ24NSTRR:

1.Submit a request within 90 days.

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

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