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

Infineon Technologies IRFL024ZPBF

Name: IRFL024ZPBF
Brand: Infineon Technologies
SKU: IRFL024ZPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFL024ZPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-261-4, TO-261AA

Datasheet:: IRFL024ZPBF.pdf

Description:: MOSFET N-CH 55V 5.1A SOT223

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRFL024ZPBF from Infineon Technologies is a 55V N-channel enhancement-mode Power MOSFET in SOT-223 package, rated for 5.1A continuous drain current at 25°C, with 57.5mΩ maximum R_DS(on) at V_GS = 10V and 150°C junction temperature rating. It integrates a robust body diode and supports fast switching (t_r = 21ns, t_f = 23ns) for DC-DC converters and motor control stages.

For engineers reviewing the IRFL024ZPBF datasheet, IRFL024ZPBF pinout, IRFL024ZPBF application, or IRFL024ZPBF equivalent, key selection criteria include its 57.5mΩ on-resistance at 10V gate drive, 150°C thermal limit, repetitive avalanche capability up to T_jmax, SOT-223 footprint compatibility, and body diode recovery performance (Q_rr = 9.8–15nC, t_rr = 15–23ns).

Technical Context

This HEXFET device uses advanced silicon processing to minimize conduction loss per unit area while maintaining ruggedness. Its design enables stable operation under repetitive unclamped inductive switching, supported by validated avalanche energy ratings (E_AS = 32mJ, I_AR = 3.1A) and thermally limited safe operating area up to 150°C junction temperature.

The MOSFET features a gate threshold voltage of 2.0–4.0V, total gate charge of 9.1–14nC, and output capacitance C_oss = 68pF (typ.) at V_DS = 25V - parameters critical for optimizing gate driver sizing and switching loss in high-frequency buck regulators and half-bridge drivers.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	55V - Maximum blocking voltage before avalanche onset; sets upper limit for input rail in 24V/48V industrial power supplies.
R_DS(on) max	57.5mΩ @ V_GS = 10V, T_J = 25°C - Directly determines I²R conduction loss in load switch or synchronous rectifier stage.
I_D cont	5.1A @ T_A = 25°C - Continuous current capability on standard PCB mount; derates to 4.1A at 70°C ambient.
Q_g max	14nC - Total gate charge defining minimum driver current needed for 100ns switching transitions at 1MHz.
t_r/t_f	21ns/23ns - Rise/fall times measured at V_DD = 28V, I_D = 3.1A; constrains achievable PWM frequency in motor gate drivers.
T_J max	150°C - Maximum junction temperature enabling operation in sealed enclosures or high-ambient environments without forced cooling.
E_AS	32mJ - Single-pulse avalanche energy rating; allows safe operation during inductive turn-off transients in relay/snubberless designs.

Pinout & Package

IRFL024ZPBF is housed in a surface-mount SOT-223 package with three leads: Drain (tab), Source (pin 1), and Gate (pin 2). The exposed drain tab provides low thermal resistance to PCB copper and must be soldered to a thermal pad for rated power dissipation.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main current-carrying terminal, electrically connected to metal tab	Primary heat path to PCB; requires direct connection to large copper pour for R_θJA ≤ 45°C/W performance.
Source (Pin 1)	Reference node for gate drive and current return path	Common connection point for gate resistor, sense resistor, and driver ground; impacts noise immunity in high-di/dt layouts.
Gate (Pin 2)	Control electrode for channel formation	High-impedance input requiring <14nC charge for full enhancement; sensitive to ESD and layout-induced ringing.

Key Features

Feature	Design Value
Ultra-low R_DS(on)	46.2mΩ typical at V_GS = 10V - reduces conduction loss by >25% vs. legacy SOT-223 MOSFETs at same current level.
150°C junction rating	Enables operation in automotive under-hood or industrial control cabinets where ambient exceeds 85°C.
Repetitive avalanche capability	Rated for repeated unclamped inductive switching up to T_jmax, verified per Fig. 12a–12b test conditions.
Fast body diode recovery	t_rr = 15–23ns, Q_rr = 9.8–15nC - minimizes reverse recovery loss and shoot-through risk in synchronous buck topologies.
Lead-free construction	RoHS-compliant SOT-223 package with matte tin plating - eliminates post-soldering cleaning and meets IPC-J-STD-020 moisture sensitivity Level 1.

Applications

DC-DC Buck Converter

Low-Voltage Motor Driver

Use Scenario: 24V input to 5V/3A output in programmable logic controller (PLC) power module.

IC Role / Device Role / Timing Role: Synchronous rectifier in high-side switch position, operating at 500kHz PWM frequency.

Use Value: 57.5mΩ R_DS(on) limits conduction loss to <350mW at full load, while 21ns rise time ensures minimal dead-time penalty.

Use Scenario: H-bridge driver for 12V brushed DC fan in HVAC control panel.

IC Role / Device Role / Timing Role: Low-side switch controlling direction and speed via PWM duty cycle modulation.

Use Value: 150°C T_Jmax sustains 4.1A current at 70°C ambient; body diode handles back-EMF during freewheeling without external clamp.

LED Constant-Current Driver

Industrial Load Switch

Use Scenario: Dimmable 48V LED string driver with analog current regulation.

IC Role / Device Role / Timing Role: Precision current sink transistor controlled by op-amp feedback loop.

Use Value: 2.0–4.0V V_GS(th) enables stable biasing across temperature; 5.1A rating supports up to 120W LED arrays.

Use Scenario: Remote-controlled 24V solenoid actuator in factory automation I/O module.

IC Role / Device Role / Timing Role: High-reliability power switch with integrated avalanche protection for inductive kick suppression.

Use Value: 32mJ E_AS rating absorbs 28V × 3.1A × 0.5ms transient without failure, eliminating need for TVS diode.

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
STP55NF06L	TO-220 package, 60V V_DSS, 11mΩ R_DS(on), higher current (55A), larger footprint	Suitable for higher-power inverters but incompatible with SOT-223 board space constraints	Select when thermal budget allows TO-220 mounting and >10A peak current is required.
DMN3026LSD-13	SOT-23 package, 30V V_DSS, 26mΩ R_DS(on), 3.8A I_D, lower voltage rating	Fits ultra-compact designs but cannot replace IRFL024ZPBF in 48V systems due to V_DSS limitation	Choose only for 3.3V/5V logic-level loads where 55V blocking is unnecessary.

Compared with STP55NF06L and DMN3026LSD-13, IRFL024ZPBF uniquely balances SOT-223 compactness, 55V robustness, and 5.1A capability - making it optimal for space-constrained industrial DC-DC and motor control where TO-220 is oversized and SOT-23 under-rates voltage.

Availability

IRFL024ZPBF is available at Aetrix Electronics and suitable for industrial motor drives, PLC power supplies, and LED lighting controllers requiring stable component supply and long-term manufacturability.

Supply support for IRFL024ZPBF 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 German semiconductor leader specializing in power management, automotive ICs, and industrial control solutions, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

This device belongs to Infineon's HEXFET® Power MOSFET product line, engineered for high-efficiency switching in industrial power conversion, motor control, and load management applications where thermal resilience and avalanche ruggedness are mandatory.

FAQ

Is IRFL024ZPBF suitable for logic-level gate drive?

No - IRFL024ZPBF has a gate threshold voltage range of 2.0–4.0V and is specified for R_DS(on) at V_GS = 10V. While it may partially enhance at 3.3V or 5V, its on-resistance rises sharply below 4.5V, increasing conduction loss beyond acceptable levels in most designs.

What is the recommended PCB layout for thermal performance?

Mount the SOT-223 drain tab directly to ≥1 cm² of 2-oz copper on the top layer, connected via ≥4 thermal vias (0.3mm diameter) to internal ground/power planes. Keep gate trace short and shielded from drain switching noise to prevent oscillation.

Does IRFL024ZPBF require a gate resistor for stability?

Yes - a 10–47Ω series gate resistor is recommended to dampen parasitic LC resonance between gate capacitance and PCB inductance. This prevents ringing that could cause false turn-on or exceed ±20V V_GS absolute maximum rating during fast edge transitions.

Can IRFL024ZPBF replace older IRFL024NPBF in existing designs?

Yes - IRFL024ZPBF is the lead-free, RoHS-compliant successor to IRFL024NPBF with identical electrical specs, pinout, and package. No layout or firmware changes are needed; reflow profile should follow J-STD-020 Level 1 requirements for matte tin finish.

IRFL024ZPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 55 V

Current - Continuous Drain (Id) @ 25°C:: 5.1A (Ta)

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

Rds On (Max) @ Id, Vgs:: 57.5mOhm @ 3.1A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 14 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 340 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

IRFL024ZPBF FAQ

1.How can I place an order for IRFL024ZPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFL024ZPBF 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 IRFL024ZPBF reliable?

The price and inventory of IRFL024ZPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFL024ZPBF is usually 5 days.

3.What payment methods are accepted for IRFL024ZPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFL024ZPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFL024ZPBF?

IRFL024ZPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFL024ZPBF 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 IRFL024ZPBF?

For technical support, including IRFL024ZPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFL024ZPBF requirements.

6.How does Aetrix verify that IRFL024ZPBF is sourced from the original manufacturer or authorized distributors?

All IRFL024ZPBF 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 IRFL024ZPBF meets industry standards.

7.What is the process for return or replacement of IRFL024ZPBF?

All IRFL024ZPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFL024ZPBF, 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 IRFL024ZPBF part is unused and in its original packaging.

Return procedure for IRFL024ZPBF:

1.Submit a request within 90 days.

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

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