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

Infineon Technologies IRFR3910

Name: IRFR3910
Brand: Infineon Technologies
SKU: IRFR3910
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFR3910

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: IRFR3910.pdf

Description:: MOSFET N-CH 100V 16A DPAK

Quantity:: RFQ Add To RFQ list

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Inventory:3,070

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Product details

Overview

IRFR3910 from Infineon Technologies (formerly International Rectifier) is a 100V, 16A N-channel enhancement-mode power MOSFET in D-PAK (TO-252AA) surface-mount package, featuring 0.115Ω R_DS(on) at V_GS = 10V, fully avalanche-rated, and optimized for DC-DC converters, motor drives, and load switching in industrial power supplies.

For engineers reviewing the IRFR3910 datasheet, IRFR3910 pinout, IRFR3910 application, or IRFR3910 equivalent, key selection criteria include its 100V V_DS, 0.115Ω on-resistance, 44nC total gate charge, 130–190ns reverse recovery time, and D-PAK thermal performance with R_θJC = 1.9°C/W - critical for high-efficiency, medium-power switching designs.

Technical Context

The IRFR3910 employs fifth-generation HEXFET® process technology to minimize conduction loss while maintaining rugged unclamped inductive switching capability. Its body diode exhibits 1.3V forward voltage at 9.0A and 130–190ns reverse recovery time under 100A/µs di/dt, enabling reliable synchronous rectification and flyback operation.

Designed for surface-mount assembly using vapor-phase or infrared reflow, the device supports linear derating of 0.53W/°C above 25°C case temperature and delivers 79W power dissipation at T_C = 25°C. Gate threshold voltage ranges from 2.0V to 4.0V, ensuring compatibility with standard 5V and 10V logic-level drivers.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100V - supports 48V bus systems with 2× safety margin against transients
R_DS(on)	0.115Ω @ V_GS = 10V - enables ≤1.0W conduction loss at 9.0A continuous drain current
I_D (T_C = 25°C)	16A - suitable for 12–24V DC-DC output stages delivering up to 384W with forced air
Q_g	44nC - determines gate drive power requirement; compatible with low-side drivers like IR2104
E_AS	150mJ - ensures robustness in unclamped inductive switching (e.g., relay/snubberless solenoid control)
R_θJC	1.9°C/W - allows junction temperature rise of only 19°C at 10W dissipation with proper heatsinking
t_rr	130–190ns - limits switching loss during diode commutation in half-bridge topologies

Pinout & Package

IRFR3910 is housed in a TO-252AA (D-PAK) surface-mount package with exposed drain pad for thermal conduction. The package features three leads: Gate (Lead 1), Drain (Leads 2 & 4), and Source (Lead 3), with standardized footprint per JEDEC outline.

Pin/Terminal	Circuit Role	Design Meaning
1 (Gate)	Control electrode	Receives 2.0–20V gate drive; requires <44nC charge for full enhancement; sensitive to ESD
2 & 4 (Drain)	Main current path input	Internally connected to exposed copper pad; primary thermal path to PCB; rated for 100V blocking
3 (Source)	Current return / reference node	Common connection point for gate drive return and load return; defines local ground reference for driver IC

Key Features

Feature	Design Value
Ultra-low R_DS(on)	0.115Ω reduces I²R losses by >30% vs. legacy 100V MOSFETs in 12V/15A power rails
Fully avalanche-rated	150mJ single-pulse energy rating eliminates need for external snubbers in inductive load switching
Fast body diode recovery	130–190ns t_rr enables efficient synchronous rectification without excessive shoot-through risk
Surface-mount D-PAK	TO-252AA footprint supports automated assembly and achieves 79W power dissipation with minimal board area
Advanced process technology	Fifth-generation HEXFET® silicon delivers improved transconductance (6.4S) and lower gate charge density

Applications

Industrial Motor Control

DC-DC Converter Primary Switch

Use Scenario: Driving 24V brushed DC motors in programmable logic controller (PLC) I/O modules with PWM at 20kHz.

IC Role / Device Role / Timing Role: Low-side switch controlling motor direction and speed via duty-cycle modulation; handles 12A peak inductive current.

Use Value: 0.115Ω R_DS(on) limits conduction loss to 1.65W at 12A, reducing heatsink requirements and enabling compact module design.

Use Scenario: High-efficiency buck converter stepping 48V input to 12V/10A output for telecom shelf power.

IC Role / Device Role / Timing Role: Primary-side power switch operating at 300kHz with 44nC gate charge and 27ns rise time.

Use Value: Fast switching and low Q_g reduce total switching loss to <0.8W, achieving >94% efficiency at full load.

Automotive Body Control Module

LED Driver for Commercial Lighting

Use Scenario: Load switching for HVAC actuators and window lift motors in 12V vehicle electrical systems.

IC Role / Device Role / Timing Role: High-reliability power switch handling 16A surge currents and automotive load-dump transients up to 100V.

Use Value: Fully rated avalanche capability (150mJ) prevents failure during inductive kickback without external clamping diodes.

Use Scenario: Constant-current LED driver for 40W streetlight arrays with PWM dimming and thermal foldback.

IC Role / Device Role / Timing Role: High-side or low-side current regulator switching at 1kHz with integrated current-sense feedback.

Use Value: 1.3V body diode forward drop minimizes power loss during PWM off-time, improving thermal margin in enclosed fixtures.

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
STP16NF10	100V, 16A, R_DS(on) = 0.12Ω, TO-220 package, no avalanche rating	Requires external avalanche protection; unsuitable for unclamped inductive loads	Select when through-hole mounting and cost priority outweigh ruggedness needs
IXTP16N10P	100V, 16A, R_DS(on) = 0.13Ω, TO-220FP package, 100mJ E_AS	Lower avalanche energy than IRFR3910; higher R_DS(on) increases conduction loss by ~13%	Prefer where vertical-mount space constraints favor TO-220FP over D-PAK

Compared with STP16NF10 and IXTP16N10P, the IRFR3910 offers superior thermal performance (R_θJC = 1.9°C/W vs. ≥3.0°C/W), surface-mount compatibility, and industry-leading 150mJ avalanche rating - making it optimal for space-constrained, high-reliability industrial switching.

Availability

IRFR3910 is available at Aetrix Electronics and suitable for industrial motor control, DC-DC converter primary switching, and automotive body electronics requiring stable component supply across multi-year production cycles.

Supply support for IRFR3910 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 IRFR3910 belongs to Infineon's legacy HEXFET® power MOSFET product line, engineered for high-efficiency, medium-power switching in industrial, automotive, and computing power systems where reliability and thermal performance are critical.

FAQ

What is the maximum continuous drain current for IRFR3910 at 100°C case temperature?

The IRFR3910 supports 12A continuous drain current at T_C = 100°C, as specified in its Absolute Maximum Ratings table. This derating reflects thermal limits of the D-PAK package and ensures safe operation within its 175°C maximum junction temperature, assuming proper PCB copper area and airflow.

Does IRFR3910 require a gate resistor for reliable switching?

Yes - a gate resistor (typically 10–22Ω) is recommended to dampen ringing caused by gate-drain capacitance (C_rss = 88pF) and parasitic inductance. Without it, overshoot exceeding ±20V gate rating may occur, risking long-term reliability or immediate gate oxide failure during fast edge transitions.

Can IRFR3910 be used in synchronous rectification applications?

Yes - its body diode has 1.3V forward voltage at 9.0A and 130–190ns reverse recovery time, enabling use in secondary-side synchronous rectification of flyback or LLC converters. However, external synchronous FET drivers are required since IRFR3910 lacks integrated gate control logic.

Is the IRFR3910 RoHS-compliant and halogen-free?

Yes - Infineon confirms IRFR3910 meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The device carries the "HF" marking on its package and complies with JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), allowing unlimited floor life at ≤30°C/60% RH.

IRFR3910 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

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

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 16A (Tc)

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

Rds On (Max) @ Id, Vgs:: 115mOhm @ 10A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 44 nC @ 10 V

Vgs (Max):: -

Input Capacitance (Ciss) (Max) @ Vds:: 640 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

IRFR3910 FAQ

1.How can I place an order for IRFR3910 through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFR3910 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 IRFR3910 reliable?

The price and inventory of IRFR3910 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFR3910 is usually 5 days.

3.What payment methods are accepted for IRFR3910?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFR3910 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFR3910?

IRFR3910 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFR3910 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 IRFR3910?

For technical support, including IRFR3910 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFR3910 requirements.

6.How does Aetrix verify that IRFR3910 is sourced from the original manufacturer or authorized distributors?

All IRFR3910 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 IRFR3910 meets industry standards.

7.What is the process for return or replacement of IRFR3910?

All IRFR3910 units undergo pre-shipment inspection (PSI). If there is an issue with IRFR3910, 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 IRFR3910 part is unused and in its original packaging.

Return procedure for IRFR3910:

1.Submit a request within 90 days.

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

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