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Infineon Technologies IRFL024NTR
- Part No.:
- IRFL024NTR
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
IRFL024NTR.pdf
- Description:
- MOSFET N-CH 55V 2.8A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:3,648
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Product details
Overview
IRFL024NTR from Infineon (formerly International Rectifier) is a 55V, 2.8A N-channel enhancement-mode power MOSFET in SOT-223 package, featuring 0.075Ω RDS(on) at VGS = 10V, fully avalanche-rated operation, and fast switching (tr = 13.4ns, tf = 17.7ns). It serves as a high-efficiency low-side switch in DC-DC converters, LED drivers, and motor control circuits.
For engineers reviewing the IRFL024NTR datasheet, IRFL024NTR pinout, IRFL024NTR application, or IRFL024NTR equivalent, key selection criteria include its 55V VDSS, 0.075Ω on-resistance, SOT-223 thermal performance (RθJA = 90°C/W on FR-4), 214mJ single-pulse avalanche energy, and gate charge profile (Qg = 18.3nC).
Technical Context
This HEXFET® device uses fifth-generation silicon processing to minimize conduction loss per unit area while maintaining ruggedness against unclamped inductive switching. Its body diode exhibits 35–53ns reverse recovery time and 1.0V forward voltage at 1.68A, enabling synchronous rectification in buck topologies without external Schottky replacement.
The SOT-223 package integrates an enlarged copper tab for enhanced heatsinking-enabling 1.0W continuous power dissipation on standard FR-4 PCBs and 2.1W on 1-inch² copper pads. Gate threshold voltage (2.0–4.0V) ensures compatibility with 3.3V and 5V logic-level drive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 55V - supports 24V industrial bus and 48V telecom input rails with margin |
| RDS(on) | 0.075Ω @ VGS = 10V - delivers ≤220mW conduction loss at 2.8A DC |
| ID (TA = 25°C) | 2.8A - maximum continuous current under standard surface-mount conditions |
| EAS | 214mJ - withstands unclamped inductive energy in relay/motor snubber applications |
| Qg | 18.3nC - determines gate driver current requirement (~1.8mA avg. for 100kHz switching) |
| RθJA | 90°C/W - junction-to-ambient thermal resistance on minimum footprint FR-4 board |
| tr/tf | 13.4ns/17.7ns - enables >500kHz PWM operation with minimal switching loss |
Pinout & Package
SOT-223 package with exposed drain tab (Pin 2) for thermal conduction and mechanical anchoring. Standard 4-pin configuration: Pin 1 = Gate, Pin 2 = Drain (tab), Pin 3 = Source, Pin 4 = Source (dual-source configuration improves current sharing and reduces source inductance).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (G) | Gate terminal | Controls channel conduction; requires 10V drive for full RDS(on) specification |
| Pin 2 (D) | Drain terminal / thermal pad | Primary high-side connection point and main heat path to PCB copper |
| Pins 3 & 4 (S) | Source terminals | Dual-source layout lowers source loop inductance and improves EMI performance |
Key Features
| Feature | Design Value |
|---|---|
| Fully avalanche-rated | Withstands 214mJ single-pulse energy without failure-eliminates need for external clamping in inductive loads |
| Ultra-low RDS(on) | 0.075Ω enables <1% conduction loss in 2.8A, 12V load switching applications |
| Fast body diode | 35ns typical reverse recovery time supports synchronous rectification in buck converters |
| Lead-free SOT-223 | RoHS-compliant package with 1.0W power rating on standard FR-4-no thermal vias required for basic use cases |
Applications
| DC-DC Buck Converter | LED Constant-Current Driver |
|---|---|
Use Scenario: Step-down regulation from 24V input to 5V/3.3V rail in industrial PLC modules. IC Role / Device Role / Timing Role: Low-side synchronous rectifier MOSFET operating at 300–500kHz PWM frequency. Use Value: 0.075Ω RDS(on) reduces conduction loss by 35% vs. legacy 0.12Ω alternatives, improving efficiency from 89% to 92% at 2A load. | Use Scenario: Constant-current switching for 12–24V string LEDs in signage and automotive interior lighting. IC Role / Device Role / Timing Role: High-side or low-side current-switching element controlled by PWM dimming signal. Use Value: Fast 17.7ns fall time minimizes current overshoot during dimming transitions, reducing LED stress and flicker. |
| Brushed DC Motor Control | Power Supply OR-ing |
Use Scenario: H-bridge half-bridge leg in 12V fan or actuator driver for HVAC systems. IC Role / Device Role / Timing Role: Low-side switch handling bidirectional current up to 2.8A with body-diode freewheeling. Use Value: 214mJ avalanche energy rating allows safe operation during motor stall or sudden load disconnect without external protection. | Use Scenario: Redundant 12V input OR-ing in telecom power distribution units. IC Role / Device Role / Timing Role: Ideal diode replacement with gate-driven forward conduction and reverse blocking. Use Value: 1.0V body diode forward drop replaced by 0.075Ω RDS(on), cutting forward loss by >70% at 1.5A versus Schottky diodes. |
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 |
|---|---|---|---|
| DMN2004LK-7 | RDS(on) = 0.085Ω @ 4.5V; lower VGS(th) (1.0–2.5V); SOT-23 package | Better 3.3V logic compatibility but 0.3W max power dissipation limits current handling | Select when gate drive is limited to 3.3V and load current ≤1.5A |
| SI2302DS-T1-GE3 | RDS(on) = 0.095Ω @ 4.5V; 20V VDSS; SOT-23 package | Not rated for 24V+ systems; lacks avalanche rating and thermal robustness | Only suitable for low-voltage (<12V), low-energy consumer applications |
Compared with DMN2004LK-7 and SI2302DS-T1-GE3, IRFL024NTR provides superior thermal capability (1.0W vs. ≤0.3W), higher voltage margin (55V vs. 20–30V), and certified avalanche ruggedness-making it the only viable choice for industrial 24V motor and converter designs requiring reliability under transient stress.
Availability
IRFL024NTR is available at Aetrix Electronics and suitable for DC-DC converters, LED drivers, brushed motor controllers, and redundant power OR-ing circuits requiring stable component supply across extended production lifecycles.
Supply support for IRFL024NTR 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 acquired International Rectifier in 2015 and continues to manufacture and support the HEXFET® portfolio as part of its broad power semiconductor product line.
The IRFL024NTR belongs to the fifth-generation HEXFET® Power MOSFET family, designed specifically for high-efficiency, surface-mount switching in space-constrained industrial and automotive auxiliary power systems.
FAQ
What is the maximum continuous drain current for IRFL024NTR at 70°C ambient?
The maximum continuous drain current is 2.3A at TA = 70°C with VGS = 10V, based on thermal derating from the 2.8A rating at 25°C using the 8.3mW/°C linear derating factor and 1.0W power dissipation limit on FR-4 PCB.
Can IRFL024NTR be driven directly from a 3.3V microcontroller GPIO?
No-its gate threshold voltage range is 2.0–4.0V, and full enhancement requires ≥10V for specified RDS(on). At 3.3V, RDS(on) exceeds 0.5Ω, causing excessive heating. A level-shifting gate driver or dedicated MOSFET driver IC is required for reliable operation.
Is the SOT-223 package lead-free and RoHS compliant?
Yes-IRFL024NTR is marked "PbF" (lead-free) per Infineon's packaging designation, and complies with RoHS Directive 2011/65/EU. The SOT-223 footprint meets EIA-481 standards and supports vapor-phase, infrared, and wave soldering processes.
Does IRFL024NTR require a heatsink in typical applications?
Not for continuous 2.8A operation at 25°C ambient-its SOT-223 package achieves 1.0W dissipation on standard FR-4 with minimum footprint. However, above 1.5A or in elevated ambient (>50°C), thermal vias under the drain tab or localized copper pour are recommended to maintain TJ < 125°C.
IRFL024NTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 2.8A (Ta)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 75mOhm @ 2.8A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 18.3 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 400 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 1W (Ta)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
IRFL024NTR FAQ
1.How can I place an order for IRFL024NTR through Aetrix?
Please submit a Request for Quotation (RFQ) for IRFL024NTR 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 IRFL024NTR reliable?
The price and inventory of IRFL024NTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFL024NTR is usually 5 days.
3.What payment methods are accepted for IRFL024NTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFL024NTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRFL024NTR?
IRFL024NTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRFL024NTR 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 IRFL024NTR?
For technical support, including IRFL024NTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFL024NTR requirements.
6.How does Aetrix verify that IRFL024NTR is sourced from the original manufacturer or authorized distributors?
All IRFL024NTR 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 IRFL024NTR meets industry standards.
7.What is the process for return or replacement of IRFL024NTR?
All IRFL024NTR units undergo pre-shipment inspection (PSI). If there is an issue with IRFL024NTR, 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 IRFL024NTR part is unused and in its original packaging.
Return procedure for IRFL024NTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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