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

Infineon Technologies IRL1104PBF

Name: IRL1104PBF
Brand: Infineon Technologies
SKU: IRL1104PBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL1104PBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: IRL1104PBF.pdf

Description:: MOSFET N-CH 40V 104A TO220AB

Quantity:: RFQ Add To RFQ list

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Inventory:5,634

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Product details

Overview

IRL1104PBF from Infineon Technologies (formerly International Rectifier) is a logic-level N-channel power MOSFET in TO-220AB package, rated for 40V V_DSS, 0.008Ω R_DS(on) at V_GS = 10V, and 104A continuous drain current at T_C = 25°C. It features ultra-low on-resistance, full avalanche rating, and 175°C maximum junction temperature - optimized for high-efficiency DC-DC converters and motor drive half-bridges.

For engineers reviewing the IRL1104PBF datasheet, IRL1104PBF pinout, IRL1104PBF application, or IRL1104PBF equivalent, key selection criteria include its 4.5V gate threshold compatibility with microcontroller GPIOs, 68nC total gate charge for fast switching, and validated 5.0V/ns diode recovery dv/dt performance in synchronous rectification circuits.

Technical Context

This HEXFET® device uses fifth-generation silicon processing to minimize R_DS(on) per die area while maintaining rugged unclamped inductive switching capability. Its body diode exhibits 1.3V forward voltage at 62A and 84–126ns reverse recovery time, enabling efficient freewheeling in buck converters.

The MOSFET operates with ±16V gate-source voltage tolerance and supports linear-mode operation up to 175°C junction temperature. Thermal resistance is characterized as 0.9°C/W junction-to-case and 62°C/W junction-to-ambient, confirming suitability for heatsink-mounted industrial power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	40V - Maximum blocking voltage before avalanche conduction; defines safe operating range in 24V/36V bus systems.
R_DS(on)	0.008Ω @ V_GS = 10V - Enables <1W conduction loss at 104A, critical for high-current low-voltage power delivery.
I_D (continuous)	104A @ T_C = 25°C - Confirmed steady-state current handling with adequate heatsinking per TO-220AB thermal limits.
Q_g	68nC - Total gate charge determines driver strength requirement; compatible with standard 1A peak gate drivers.
E_AS	340mJ - Single-pulse avalanche energy rating validates robustness against inductive switching transients.
dv/dt	5.0V/ns - Peak diode recovery dv/dt rating ensures immunity to parasitic turn-on during hard commutation.
T_J max	+175°C - Extended junction temperature enables operation in sealed enclosures or high-ambient environments.

Pinout & Package

IRL1104PBF is housed in a TO-220AB package with isolated tab (drain-connected), standardized lead spacing, and mechanical mounting provisions for heatsink attachment using a 6-32 or M3 screw (1.1N·m torque).

Pin/Terminal	Circuit Role	Design Meaning
1 (Gate)	Control electrode	Logic-level input requiring ≥4.5V to fully enhance; gate threshold is 1.0–2.0V, enabling direct MCU drive.
2 (Drain)	Main current output terminal	Internally connected to metal tab; electrically tied to heatsink - requires isolation when mounted to grounded chassis.
3 (Source)	Power return reference	Common node for load return path and gate drive reference; source inductance must be minimized for stable switching.
4 (Drain)	Secondary drain connection	Redundant drain pin for improved current sharing and reduced package inductance in high-di/dt applications.

Key Features

Feature	Design Value
Logic-level gate drive	Operates fully enhanced at V_GS = 4.5V - eliminates need for gate driver ICs in 3.3V/5V control systems.
Ultra-low R_DS(on)	0.008Ω at 10V gate drive - reduces conduction losses by >30% vs. legacy 40V MOSFETs in 12V battery-powered inverters.
Full avalanche rating	Rated for repetitive unclamped inductive switching up to 62A - enables reliable operation without snubbers in motor H-bridge flyback paths.
High-temperature operation	Specified performance up to +175°C junction - supports automotive under-hood and industrial motor control deployments.
Lead-free construction	RoHS-compliant Pb-free plating and solderable terminations - meets IPC-J-STD-020 moisture sensitivity level 1 requirements.

Applications

DC-DC Synchronous Buck Converter

Brushed DC Motor Half-Bridge

Use Scenario: High-current 12V-to-5V/3.3V conversion in server VRMs and telecom power supplies.

IC Role / Device Role / Timing Role: Low-side synchronous rectifier MOSFET, replacing Schottky diodes to reduce conduction loss and improve efficiency above 10A.

Use Value: Achieves >95% efficiency at 60A output due to 0.008Ω R_DS(on) and 1.3V body diode forward drop - cutting thermal load by 40% vs. diode-based designs.

Use Scenario: Bidirectional 24V brushed motor control in industrial actuators and robotic joints.

IC Role / Device Role / Timing Role: High-current quadrant-switching element in half-bridge topology, driven by PWM signals from microcontroller GPIOs.

Use Value: Supports 104A peak motor stall current with logic-level gate drive, eliminating external level shifters and reducing BOM count by one active component.

Automotive Body Control Module

Industrial LED Driver Switch

Use Scenario: Load switching for headlights, HVAC blowers, and seat heaters in 12V/24V vehicle electrical systems.

IC Role / Device Role / Timing Role: High-side or low-side power switch with integrated overtemperature and short-circuit protection via external monitoring.

Use Value: Withstands 175°C ambient under hood and sustains 340mJ single-pulse avalanche energy - prevents failure during load dump or inductive kick events.

Use Scenario: Constant-current switching for high-brightness LED arrays in street lighting and signage.

IC Role / Device Role / Timing Role: Primary current-regulating switch in buck-derived constant-current topology, modulated at 1–20kHz.

Use Value: Low 68nC gate charge enables clean 20kHz PWM dimming without shoot-through risk; 5.0V/ns dv/dt rating suppresses false triggering during LED string reconnection.

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
IRL1404PBF	R_DS(on) = 0.004Ω @ 10V, but higher Q_g = 105nC and lower V_DSS = 40V same; larger die size increases cost and thermal mass.	Better conduction loss at <50A, but slower switching due to higher gate charge - less optimal for >100kHz SMPS.	Select when lowest possible R_DS(on) dominates over switching speed and cost.
STP40NF10L	V_DSS = 100V, R_DS(on) = 0.027Ω @ 10V, logic-level gate, but no specified avalanche rating or dv/dt data.	Higher voltage margin suits 48V systems, but 3.4× higher on-resistance increases conduction loss in 12V/24V loads.	Select only if system requires >40V blocking voltage and avalanche robustness is secondary.

Compared with IRL1104PBF, IRL1404PBF trades faster switching for lower conduction loss, while STP40NF10L sacrifices on-resistance and transient ruggedness for extended voltage headroom - making IRL1104PBF the balanced choice for 24V industrial motor drives and high-current DC-DC converters.

Availability

IRL1104PBF is available at Aetrix Electronics and suitable for DC-DC converters, brushed motor controllers, and automotive body electronics requiring stable component supply across multi-year production cycles.

Supply support for IRL1104PBF 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 deep expertise in silicon-based power devices and wide-bandgap technologies.

The IRL series of logic-level HEXFET® MOSFETs was developed specifically for high-efficiency, low-voltage power conversion and motor control - emphasizing gate-drive simplicity, thermal resilience, and rugged transient performance.

FAQ

Is IRL1104PBF suitable for use without a gate driver when controlled directly by a 3.3V microcontroller?

No - while IRL1104PBF is logic-level, its gate threshold is 1.0–2.0V and it requires ≥4.5V V_GS to achieve rated R_DS(on). A 3.3V GPIO cannot fully enhance the device, resulting in excessive conduction loss and thermal stress. A level-shifting gate driver or 5V supply is required for reliable operation at rated current.

What is the maximum continuous current achievable with IRL1104PBF on a standard TO-220 heatsink?

With a typical 1.5°C/W heatsink and 25°C ambient, the maximum continuous current is ~52A - calculated using R_θJA = 62°C/W, T_Jmax = 175°C, and P_D = (T_J − T_A) / R_θJA. At T_C = 100°C, the datasheet specifies 74A, confirming that case temperature must be actively managed below 100°C for sustained high-current operation.

Does IRL1104PBF have an integrated ESD protection diode on the gate?

No - the datasheet does not specify gate ESD protection. The absolute maximum V_GS rating is ±16V, and gate oxide is susceptible to damage from static discharge. External 12V Zener clamps or RC snubbers are recommended in handling and PCB layout to prevent gate overvoltage during assembly or system transients.

Can IRL1104PBF replace IRF1404 in an existing design?

Yes - both are TO-220AB N-channel MOSFETs with identical pinout and 40V V_DSS, but IRL1104PBF offers lower R_DS(on) (0.008Ω vs. 0.028Ω) and logic-level gate drive. Replacement improves efficiency and simplifies gate drive, provided PCB layout accommodates higher di/dt and the controller can handle faster switching edges without added noise.

IRL1104PBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-220-3

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:: 104A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 8mOhm @ 62A, 10V

Vgs(th) (Max) @ Id:: 1V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 68 nC @ 4.5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 3445 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 167W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

IRL1104PBF FAQ

1.How can I place an order for IRL1104PBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL1104PBF 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 IRL1104PBF reliable?

The price and inventory of IRL1104PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL1104PBF is usually 5 days.

3.What payment methods are accepted for IRL1104PBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL1104PBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL1104PBF?

IRL1104PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL1104PBF 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 IRL1104PBF?

For technical support, including IRL1104PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL1104PBF requirements.

6.How does Aetrix verify that IRL1104PBF is sourced from the original manufacturer or authorized distributors?

All IRL1104PBF 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 IRL1104PBF meets industry standards.

7.What is the process for return or replacement of IRL1104PBF?

All IRL1104PBF units undergo pre-shipment inspection (PSI). If there is an issue with IRL1104PBF, 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 IRL1104PBF part is unused and in its original packaging.

Return procedure for IRL1104PBF:

1.Submit a request within 90 days.

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

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