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

Infineon Technologies IRF7402TRPBF

Name: IRF7402TRPBF
Brand: Infineon Technologies
SKU: IRF7402TRPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRF7402TRPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: IRF7402TRPBF.pdf

Description:: MOSFET N-CH 20V 6.8A 8SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRF7402TRPBF from Infineon Technologies (formerly International Rectifier) is a 20V N-channel enhancement-mode power MOSFET in SO-8 package, featuring R_DS(on) = 0.035Ω @ V_GS = 4.5V, 6.8A continuous drain current at 25°C, fast switching (t_r = 47ns, t_f = 32ns), and ultra-low profile (<1.1mm). It serves as a high-efficiency synchronous rectifier or load switch in DC-DC converters and battery-powered systems.

For engineers reviewing the IRF7402TRPBF datasheet, IRF7402TRPBF pinout, IRF7402TRPBF application, or IRF7402TRPBF equivalent, key selection criteria include its low R_DS(on) at 4.5V gate drive, SO-8 thermal performance (R_θJA = 50°C/W), body diode recovery characteristics (t_rr = 51–77ns), and lead-free compliance for surface-mount assembly.

Technical Context

This fifth-generation HEXFET® device uses advanced silicon processing to minimize conduction loss per unit area while maintaining rugged avalanche capability. Its gate charge profile (Q_g = 14–22nC, Q_gd = 6.3–9.5nC) supports efficient PWM control in high-frequency switching topologies.

The SO-8 package employs a customized leadframe for enhanced thermal dissipation and multi-die compatibility. It supports vapor-phase, infrared, and wave soldering, with >0.8W power dissipation achievable on standard PCB layouts - enabling compact dual-MOSFET configurations in space-constrained power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	20V - Maximum blocking voltage for 12V rail applications with margin
R_DS(on)	0.035Ω @ V_GS = 4.5V - Enables <150mW conduction loss at 6A in 5V logic-driven circuits
I_D (25°C)	6.8A - Sustains full-load current in portable buck converters without forced cooling
t_r/t_f	47ns/32ns - Supports >1MHz switching in synchronous rectification with minimal overlap loss
Q_gd	6.3–9.5nC - Limits Miller-induced shoot-through risk in half-bridge gate drivers
t_rr	51–77ns - Reduces reverse-recovery energy loss in secondary-side synchronous rectifiers
R_θJA	50°C/W - Allows 2.5W dissipation on 1-inch² copper pad, critical for board-level thermal design

Pinout & Package

IRF7402TRPBF is housed in a standard SO-8 (JEDEC MS-012AA) surface-mount package with 1.27mm pitch, 8.1mm × 6.46mm footprint, and maximum height of 1.1mm - optimized for automated placement and reflow compatibility.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6, 7, 8	Drain (D), Source (S), Gate (G)	Pins 1–3 & 5–7: Parallel-drain connections (D); Pin 4: Gate (G); Pins 8 & S tab: Source (S) - enables low-inductance, high-current source return path

Key Features

Feature	Design Value
Ultra-low R_DS(on) at 4.5V	0.035Ω enables direct interface with 3.3V/5V microcontroller GPIOs without level-shifting
Fast switching speed	47ns rise / 32ns fall time minimizes transition losses in high-frequency DC-DC stages
Enhanced SO-8 thermal leadframe	Customized internal structure improves junction-to-board heat transfer vs. standard SO-8
Lead-free and RoHS-compliant	Meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) for unlimited floor life

Applications

Battery-Powered DC-DC Converter

Synchronous Buck Regulator

Use Scenario: Step-down conversion from single-cell Li-ion (2.7–4.2V) to 1.2V/3.3V system rails in wearables and IoT sensors.

IC Role / Device Role: Low-side synchronous rectifier replacing Schottky diode to reduce conduction loss.

Use Value: Achieves >92% efficiency at 2A load due to 0.035Ω R_DS(on) and fast body diode recovery (t_rr ≤ 77ns).

Use Scenario: Main power stage in 5V-input, 1.8V-output buck converter for FPGA core supplies.

IC Role / Device Role: High-side switch paired with complementary low-side MOSFET in integrated controller IC.

Use Value: Gate charge (Q_g = 14–22nC) ensures clean turn-on with minimal driver stress at 1MHz switching frequency.

USB Power Delivery Switch

Load Switch for Portable Devices

Use Scenario: Input protection and hot-swap control in USB-C PD 3.0 sink designs supporting 20V/5A input.

IC Role / Device Role: Reverse-voltage blocking and overcurrent-protected main power path switch.

Use Value: 20V V_DSS and 6.8A I_D support full PD3.0 specification with 100% duty-cycle operation.

Use Scenario: Controlled power sequencing for display backlight, camera module, or RF transceiver in smartphones.

IC Role / Device Role: Single-channel load switch with controlled slew rate and low quiescent current.

Use Value: SO-8 footprint and <1.1mm height enable integration into tight board spaces without compromising thermal performance.

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
Si2302DS-T1-GE3	R_DS(on) = 0.055Ω @ 4.5V; lower I_D (4.2A); SOT-23 package	Higher conduction loss; limited to ≤2A continuous loads; smaller footprint but inferior thermal dissipation	Select only when board area is primary constraint and power density <0.5W/cm²
DMN2020LSD-13	R_DS(on) = 0.028Ω @ 4.5V; higher Q_g (28nC); same SO-8 package	Better conduction efficiency but slower switching (t_r = 10ns longer); requires stronger gate driver	Prefer for fixed-frequency <500kHz applications where R_DS(on) dominates loss budget

Compared with Si2302DS-T1-GE3 and DMN2020LSD-13, IRF7402TRPBF delivers optimal balance of low R_DS(on), moderate gate charge, and proven SO-8 thermal reliability - making it preferred for 1–3MHz synchronous buck converters requiring stable efficiency across temperature.

Availability

IRF7402TRPBF is available at Aetrix Electronics and suitable for battery management systems, USB-C power delivery modules, and portable DC-DC converters requiring stable component supply and long-term industrial availability.

Supply support for IRF7402TRPBF 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, automotive electronics, and industrial control solutions, with headquarters in Munich, Germany.

This device belongs to Infineon's legacy HEXFET® power MOSFET product line, engineered for high-efficiency, high-reliability switching in consumer and industrial power conversion applications - emphasizing low gate drive requirements and robust thermal performance in standard packages.

FAQ

What is the maximum continuous drain current at 70°C ambient?

The IRF7402TRPBF supports 5.4A continuous drain current at T_A = 70°C with V_GS = 4.5V, derating linearly at 0.02W/°C above 70°C. This value assumes standard PCB mounting on 1-inch² copper area and accounts for both conduction and switching losses under typical thermal conditions.

Does this MOSFET require a gate resistor for stability?

A gate resistor (typically 1–10Ω) is recommended to dampen ringing caused by parasitic inductance between driver and gate, especially at >500kHz switching frequencies. The device's Q_gd of 6.3–9.5nC makes it sensitive to Miller feedback without proper gate impedance control.

Can IRF7402TRPBF be used in parallel configurations?

Yes - its positive R_DS(on) temperature coefficient (0.024V/°C) enables inherent current sharing when multiple units are paralleled. Layout symmetry and matched gate drive paths are required to ensure balanced dynamic current distribution across devices.

Is the body diode suitable for reverse recovery in synchronous rectification?

Yes - the body diode exhibits t_rr = 51–77ns and Q_rr = 69–100nC at di/dt = 100A/µs, making it suitable for synchronous rectification in buck converters up to 2MHz. However, dead-time must be carefully tuned to avoid cross-conduction during diode conduction phase.

IRF7402TRPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 20 V

Current - Continuous Drain (Id) @ 25°C:: 6.8A (Ta)

Drive Voltage (Max Rds On, Min Rds On):: 2.7V, 4.5V

Rds On (Max) @ Id, Vgs:: 35mOhm @ 4.1A, 4.5V

Vgs(th) (Max) @ Id:: 700mV @ 250µA (Min)

Gate Charge (Qg) (Max) @ Vgs:: 22 nC @ 4.5 V

Vgs (Max):: ±12V

Input Capacitance (Ciss) (Max) @ Vds:: 650 pF @ 15 V

FET Feature:: -

Power Dissipation (Max):: 2.5W (Ta)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SO

IRF7402TRPBF FAQ

1.How can I place an order for IRF7402TRPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRF7402TRPBF 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 IRF7402TRPBF reliable?

The price and inventory of IRF7402TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRF7402TRPBF is usually 5 days.

3.What payment methods are accepted for IRF7402TRPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRF7402TRPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRF7402TRPBF?

IRF7402TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRF7402TRPBF 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 IRF7402TRPBF?

For technical support, including IRF7402TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRF7402TRPBF requirements.

6.How does Aetrix verify that IRF7402TRPBF is sourced from the original manufacturer or authorized distributors?

All IRF7402TRPBF 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 IRF7402TRPBF meets industry standards.

7.What is the process for return or replacement of IRF7402TRPBF?

All IRF7402TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRF7402TRPBF, 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 IRF7402TRPBF part is unused and in its original packaging.

Return procedure for IRF7402TRPBF:

1.Submit a request within 90 days.

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

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