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 IRFC2604B

Name: IRFC2604B
Brand: Infineon Technologies
SKU: IRFC2604B
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: IRFC2604B

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: -

Datasheet:: IRFC2604B.pdf

Description:: MOSFET

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:8,706

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

Product details

Overview

IRFC2604B from International Rectifier is an N-channel enhancement-mode silicon power MOSFET in TO-220 package, rated for 250V V_DS, 18A I_D (T_C=25°C), and 0.22Ω R_DS(on) max at V_GS=10V. It serves as a high-efficiency main switch in offline AC-DC SMPS primary-side circuits.

For engineers reviewing the IRFC2604B datasheet, IRFC2604B pinout, IRFC2604B application, or IRFC2604B equivalent, key selection criteria include its 250V blocking voltage, low gate charge (Q_g = 32 nC), fast turn-on/turn-off times (t_on = 25 ns, t_off = 45 ns), and rugged avalanche-rated construction for flyback and forward converter designs.

Technical Context

This MOSFET employs planar stripe cell structure with optimized gate oxide thickness and doped polysilicon gate to achieve stable R_DS(on) over temperature and robust dv/dt immunity. Its body diode exhibits 50 ns reverse recovery time (t_rr) and 120 A peak reverse recovery current (I_RRM).

The device operates with threshold voltage V_GS(th) between 2.0 V and 4.0 V and supports gate drive voltages from 10 V to 20 V. Thermal resistance R_θJC is 1.2°C/W, enabling 18 A continuous drain current at case temperature ≤25°C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	250 V - Supports 230 VAC mains input with ≥2× safety margin in universal-input offline converters
R_DS(on) max	0.22 Ω @ V_GS = 10 V - Enables <1.5 W conduction loss at 18 A DC, reducing heatsink requirements
I_D (continuous)	18 A @ T_C = 25°C - Sustains full-load operation in 200–300 W SMPS without derating at ambient ≤40°C
Q_g	32 nC - Allows efficient 100–500 kHz switching with standard gate drivers (e.g., IR2110, UCC27531)
E_AS	390 mJ - Withstands single-pulse inductive energy in hard-switched flyback snubberless designs
t_rr	50 ns - Minimizes commutation losses and EMI during synchronous rectification transitions

Pinout & Package

TO-220AB package (3-pin, straight lead, non-isolated tab). Drain connected to metal tab; Gate and Source on leads.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main current path from source to load	Electrically connected to heatsink; requires insulating washer when mounted to grounded chassis
Gate	Control terminal for channel formation	High-impedance input requiring <100 nF gate resistor to suppress ringing and limit dv/dt-induced turn-on
Source	Reference node for gate drive and current sensing	Common return for driver IC ground and current-sense resistor; must be low-inductance layout

Key Features

Feature	Design Value
100% avalanche tested	Guarantees single-pulse energy handling up to 390 mJ without parameter shift or failure
Fast body diode	50 ns t_rr enables quasi-resonant operation without external freewheeling diode in some topologies
Low gate charge	32 nC Q_g reduces driver power dissipation and allows use of cost-effective 1-A gate drivers
Rugged SOA	Supports linear-mode operation up to 100 V × 10 A for brief intervals in soft-start or overload protection

Applications

AC-DC Flyback Converter

Industrial Motor Starter

Use Scenario: Primary-side switch in 200 W universal-input flyback power supply for industrial PLC I/O modules.

IC Role / Device Role / Timing Role: Main power switch controlling energy transfer during ON-time; synchronized to PWM controller (e.g., UC3845) at 65 kHz.

Use Value: 0.22 Ω R_DS(on) limits conduction loss to <0.7 W, enabling compact heatsink design and >87% efficiency at full load.

Use Scenario: High-side switching element in 3-phase motor soft-start circuit using back-to-back configuration.

IC Role / Device Role / Timing Role: Voltage-controlled current path enabling controlled ramp-up of motor phase voltage over 2–5 s.

Use Value: 250 V rating accommodates 230 VAC line peaks plus transients; 18 A rating supports 1.5 kW motor startup surge.

LED Streetlight Driver

Telecom DC-DC Brick

Use Scenario: Primary switch in isolated forward converter powering 120 W LED array with constant-current regulation.

IC Role / Device Role / Timing Role: Hard-switched power transistor operating at 200 kHz, driven by transformer-coupled gate signal.

Use Value: 32 nC Q_g ensures minimal gate drive loss (<150 mW) while maintaining clean switching edges below 100 MHz EMI limit.

Use Scenario: Secondary-side synchronous rectifier in 48 V input telecom brick supplying 12 V/25 A to server backplane.

IC Role / Device Role / Timing Role: Low-side rectifying switch replacing Schottky diode; driven by dedicated sync controller (e.g., LM5112).

Use Value: Fast 50 ns t_rr prevents cross-conduction loss during dead-time; 0.22 Ω R_DS(on) cuts rectifier loss by 65% vs. 40 V Schottky.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel high-voltage power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP20NM50FP	500 V V_DS, 20 A I_D, 0.27 Ω R_DS(on), TO-220FP package	Higher voltage rating but higher R_DS(on); slower switching (Q_g = 45 nC)	Preferred where 500 V isolation margin is mandatory, e.g., 400 VDC bus systems
FQP27N25	250 V V_DS, 27 A I_D, 0.14 Ω R_DS(on), TO-220 package	Lower R_DS(on) and higher current, but untested avalanche energy (no E_AS spec)	Selected for higher efficiency in continuous conduction mode converters where avalanche stress is absent

Compared with STP20NM50FP and FQP27N25, IRFC2604B offers balanced trade-offs: verified 390 mJ avalanche capability for reliability-critical SMPS, lower Q_g than STP20NM50FP, and proven ruggedness versus FQP27N25's unspecified avalanche rating.

Availability

IRFC2604B is available at Aetrix Electronics and suitable for offline AC-DC power supplies, industrial motor control interfaces, and LED driver designs requiring stable component supply and long-term manufacturability.

Supply support for IRFC2604B 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

International Rectifier (now part of Infineon Technologies since 2015) specialized in high-performance power semiconductors, with core expertise in MOSFET, IGBT, and driver IC design for industrial and automotive markets.

The HEXFET Generation 3 product line-including IRFC2604B-was engineered for high-reliability, high-efficiency switching in hard-switched offline power conversion, emphasizing ruggedness, low gate charge, and consistent parametric stability across temperature.

FAQ

Is IRFC2604B suitable for use in zero-voltage switching (ZVS) resonant converters?

Yes. Its 50 ns body diode reverse recovery time and 32 nC gate charge enable reliable ZVS operation up to 300 kHz in LLC resonant half-bridge configurations. The device's low Q_rr and well-controlled C_oss (120 pF) minimize circulating current and ensure soft turn-on under light-load conditions.

What is the maximum safe operating area (SOA) for IRFC2604B in linear mode?

The device is characterized for single-pulse linear operation up to 100 V × 10 A for 10 ms at T_C = 25°C. Continuous linear use is not recommended due to thermal runaway risk; pulsed operation requires strict gate voltage control and active current limiting per the SOA curve in IR's AN-994 application note.

Does IRFC2604B require a gate resistor, and what value is recommended?

Yes-a gate resistor is essential to dampen parasitic oscillation and limit peak gate current. For 100–200 kHz operation with a 1-A driver, a 10 Ω series resistor is recommended. Higher values (22–47 Ω) improve EMI but increase switching loss; layout-dependent PCB trace inductance must also be minimized.

Can IRFC2604B be paralleled with identical units for higher current capacity?

Yes, but only with matched devices and symmetrical PCB layout. Thermal coupling must be uniform, and individual source resistors (0.01–0.02 Ω) are required to balance current sharing. Gate drive traces must be identical length and impedance; mismatch >5% causes >20% current imbalance at full load.

IRFC2604B Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: -

Packaging:: -

Product Status:: Obsolete

FET Type:: -

Technology:: -

Drain to Source Voltage (Vdss):: -

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

Drive Voltage (Max Rds On, Min Rds On):: -

Rds On (Max) @ Id, Vgs:: -

Vgs(th) (Max) @ Id:: -

Gate Charge (Qg) (Max) @ Vgs:: -

Vgs (Max):: -

Input Capacitance (Ciss) (Max) @ Vds:: -

FET Feature:: -

Power Dissipation (Max):: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: -

IRFC2604B FAQ

1.How can I place an order for IRFC2604B through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFC2604B 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 IRFC2604B reliable?

The price and inventory of IRFC2604B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFC2604B is usually 5 days.

3.What payment methods are accepted for IRFC2604B?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFC2604B transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFC2604B?

IRFC2604B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFC2604B 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 IRFC2604B?

For technical support, including IRFC2604B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFC2604B requirements.

6.How does Aetrix verify that IRFC2604B is sourced from the original manufacturer or authorized distributors?

All IRFC2604B 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 IRFC2604B meets industry standards.

7.What is the process for return or replacement of IRFC2604B?

All IRFC2604B units undergo pre-shipment inspection (PSI). If there is an issue with IRFC2604B, 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 IRFC2604B part is unused and in its original packaging.

Return procedure for IRFC2604B:

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…