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

Infineon Technologies IRFU3504ZPBF

Name: IRFU3504ZPBF
Brand: Infineon Technologies
SKU: IRFU3504ZPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFU3504ZPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-251-3 Short Leads, IPAK, TO-251AA

Datasheet:: IRFU3504ZPBF.pdf

Description:: MOSFET N-CH 40V 42A IPAK

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRFU3504ZPBF from Infineon Technologies (formerly International Rectifier) is a 40V, 42A N-channel DPAK-packaged Power MOSFET with 9.0mΩ R_DS(on) at V_GS = 10V, 175°C maximum junction temperature, and rated repetitive avalanche energy up to 77mJ. It serves as a high-efficiency main or synchronous rectifier switch in DC-DC converters, motor drives, and power supplies.

For engineers reviewing the IRFU3504ZPBF datasheet, IRFU3504ZPBF pinout, IRFU3504ZPBF application, or IRFU3504ZPBF equivalent, key selection criteria include its low conduction loss, fast switching (t_r = 74ns, t_f = 38ns), body diode recovery performance (Q_rr = 9.2–14nC), and thermal robustness for high-current industrial and automotive power stages.

Technical Context

This HEXFET® device uses advanced silicon processing to minimize R_DS(on) per unit area while maintaining rugged unclamped inductive switching capability. Its gate charge profile (Q_g = 30–45nC, Q_gd = 12nC) supports efficient hard-switching operation with moderate gate drive strength.

The integrated body diode exhibits low forward voltage (V_SD ≤ 1.3V at 42A) and controlled reverse recovery (t_rr = 18–27ns, Q_rr = 9.2–14nC), enabling reliable operation in synchronous buck topologies without external Schottky supplementation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	40V - Maximum blocking voltage; suitable for 24V nominal bus systems with transient margin.
R_DS(on)	9.0mΩ max @ V_GS = 10V - Enables <1.6W conduction loss at 42A, reducing heatsink requirements.
I_D	42A @ T_C = 25°C - Continuous current rating under ideal heatsinking; derates to ~25A at 100°C case.
E_AS	77mJ - Single-pulse avalanche energy; allows safe operation during inductive turn-off transients.
Q_g	30–45nC - Total gate charge determines required driver peak current and switching loss trade-off.
t_r/t_f	74ns/38ns - Fast edge rates support >500kHz switching in optimized layouts with low EMI risk.
θ_JC	1.66°C/W - Junction-to-case thermal resistance enables direct mounting to heatsinks for high-power density designs.

Pinout & Package

IRFU3504ZPBF is housed in a surface-mount DPAK (TO-252AA) package with three terminals: Drain (tab), Source (pins 1 & 2), and Gate (pin 3). The exposed drain pad provides low-inductance, high-current path and primary thermal conduction path to PCB copper or heatsink.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main high-current output terminal	Electrically and thermally connected to PCB copper pour; requires solder mask opening and thermal vias for optimal cooling.
Source (Pin 1 & Pin 2)	Return path for load current and gate reference	Parallel pins reduce source inductance (L_S = 7.5nH); critical for minimizing gate oscillation and shoot-through risk.
Gate (Pin 3)	Control input for channel conduction	High-impedance MOS gate requiring <45nC charge; sensitive to ESD; must be driven with low-impedance path to avoid ringing.

Key Features

Feature	Design Value
Ultra-low R_DS(on)	9.0mΩ max at 10V drive enables high-efficiency 42A switching with minimal I²R loss.
175°C junction rating	Allows sustained operation in high-ambient environments (e.g., engine compartments, enclosed power modules).
Repetitive avalanche rated	Validated for repeated unclamped inductive switching up to T_jmax, eliminating need for external clamping in many motor control designs.
Fast body diode recovery	Q_rr = 9.2–14nC and t_rr = 18–27ns support synchronous rectification without cross-conduction penalties.
Lead-free construction	RoHS-compliant Pb-free plating and packaging meet global environmental compliance requirements.

Applications

Motor Drive Inverter Stage

DC-DC Synchronous Buck Converter

Use Scenario: Half-bridge leg in 24V BLDC motor controller driving 300W fan or pump load.

IC Role / Device Role / Timing Role: High-side or low-side switching element handling continuous 35A phase current with PWM at 20kHz.

Use Value: Low R_DS(on) minimizes conduction loss; fast switching and low Q_gd reduce transition losses; avalanche rating tolerates back-EMF spikes during commutation.

Use Scenario: 24V-to-5V/20A point-of-load converter in industrial PLC I/O module.

IC Role / Device Role / Timing Role: Synchronous rectifier (low-side) operating at 500kHz with 100% duty cycle capability.

Use Value: Body diode V_SD ≤ 1.3V and low Q_rr prevent reverse recovery loss; θ_JC = 1.66°C/W enables compact thermal design on 2oz copper.

Automotive LED Headlamp Driver

Industrial UPS Output Stage

Use Scenario: Constant-current switch for 48W LED array in AEC-Q101-compliant headlamp module.

IC Role / Device Role / Timing Role: PWM-controlled high-side switch with overtemperature and short-circuit protection feedback.

Use Value: 175°C T_jmax ensures reliability under hood temperatures up to 125°C ambient; low gate charge simplifies isolated gate drive design.

Use Scenario: Output H-bridge in 48V online UPS delivering 1.5kVA with active power factor correction.

IC Role / Device Role / Timing Role: Main inverter switch handling 30A RMS output current with bidirectional conduction during regeneration.

Use Value: Repetitive avalanche rating absorbs line transients and regenerative energy; parallel-source pins reduce layout parasitics for stable 10kHz operation.

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
STP40NF10	100V V_DSS, 40A I_D, 30mΩ R_DS(on), TO-220 package	Higher voltage rating but higher R_DS(on) and larger footprint; unsuitable for space-constrained 24V designs.	Choose only if system requires >40V blocking or through-hole assembly.
IPB011N04LG	40V V_DSS, 120A I_D, 1.1mΩ R_DS(on), TSDSON-8 package	Lower R_DS(on) and higher current, but requires multi-layer PCB with extensive thermal vias; not drop-in compatible.	Prefer for new high-density designs where thermal budget permits advanced packaging.

Compared with STP40NF10 and IPB011N04LG, IRFU3504ZPBF delivers optimal balance of low R_DS(on), proven DPAK thermal performance, and mature supply chain-making it ideal for cost-sensitive, medium-power industrial and automotive applications where board space and thermal management are constrained but not extreme.

Availability

IRFU3504ZPBF is available at Aetrix Electronics and suitable for motor drives, DC-DC converters, and automotive lighting systems requiring stable component supply and long-term manufacturing continuity.

Supply support for IRFU3504ZPBF 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 global semiconductor leader specializing in power management, sensor, and automotive ICs, with core expertise in silicon and wide-bandgap power devices.

The HEXFET® Power MOSFET product line was developed for high-efficiency, high-reliability switching in industrial motor controls, power supplies, and automotive subsystems-emphasizing ruggedness, thermal resilience, and consistent parametric performance across temperature.

FAQ

What is the maximum continuous drain current for IRFU3504ZPBF at 100°C case temperature?

At T_C = 100°C, the continuous drain current is 25A with V_GS = 10V, as defined by package thermal limits-not silicon current capability. This derating reflects the 1.66°C/W junction-to-case resistance and maximum 175°C junction temperature. Operation above this current requires active cooling or reduced ambient temperature.

Does IRFU3504ZPBF have a specified avalanche SOA curve?

Yes-Figures 12a–12c and 15–16 in the official datasheet define the unclamped inductive avalanche safe operating area, including single-pulse energy (E_AS = 77mJ), repetitive avalanche energy (E_AR = 54mJ at 1% duty), and allowable avalanche current versus pulse width. These curves assume proper PCB thermal design and junction temperature monitoring.

Can IRFU3504ZPBF be used in parallel configurations?

Yes-its positive temperature coefficient of R_DS(on) (see Fig.10) enables inherent current sharing when paralleled. Successful implementation requires matched gate drive impedance, symmetrical PCB layout, and shared thermal mass. Derate total current by 15% to account for parameter spread and thermal coupling effects.

Is the body diode in IRFU3504ZPBF suitable for synchronous rectification?

Yes-the body diode has characterized reverse recovery parameters: Q_rr = 9.2–14nC and t_rr = 18–27ns at I_F = 42A, making it viable for synchronous rectification in buck converters up to ~500kHz. However, external Schottky diodes may still be preferred in ultra-high-frequency or zero-voltage-switching topologies.

IRFU3504ZPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-251-3 Short Leads, IPAK, TO-251AA

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 40 V

Current - Continuous Drain (Id) @ 25°C:: 42A (Tc)

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

Rds On (Max) @ Id, Vgs:: 9mOhm @ 42A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 45 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1510 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 90W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: IPAK (TO-251AA)

IRFU3504ZPBF FAQ

1.How can I place an order for IRFU3504ZPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFU3504ZPBF 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 IRFU3504ZPBF reliable?

The price and inventory of IRFU3504ZPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFU3504ZPBF is usually 5 days.

3.What payment methods are accepted for IRFU3504ZPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFU3504ZPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFU3504ZPBF?

IRFU3504ZPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFU3504ZPBF 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 IRFU3504ZPBF?

For technical support, including IRFU3504ZPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFU3504ZPBF requirements.

6.How does Aetrix verify that IRFU3504ZPBF is sourced from the original manufacturer or authorized distributors?

All IRFU3504ZPBF 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 IRFU3504ZPBF meets industry standards.

7.What is the process for return or replacement of IRFU3504ZPBF?

All IRFU3504ZPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFU3504ZPBF, 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 IRFU3504ZPBF part is unused and in its original packaging.

Return procedure for IRFU3504ZPBF:

1.Submit a request within 90 days.

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

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