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

Infineon Technologies IRLL024ZPBF

Name: IRLL024ZPBF
Brand: Infineon Technologies
SKU: IRLL024ZPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRLL024ZPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: IRLL024ZPBF.pdf

Description:: MOSFET N-CH 55V 5A SOT223

Quantity:: RFQ Add To RFQ list

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Inventory:8,902

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Product details

Overview

IRLL024ZPBF from Infineon Technologies is a 55V, 5.0A N-channel enhancement-mode Power MOSFET in SOT-223 package, featuring 60 mΩ R_DS(on) at V_GS = 10 V, 150°C maximum junction temperature, and rated repetitive avalanche energy up to 38 mJ. It serves as a low-side switching device in DC-DC converters, motor drivers, and load switches where fast switching, thermal robustness, and body diode recovery (t_rr = 15–23 ns) are critical.

For engineers reviewing the IRLL024ZPBF datasheet, IRLL024ZPBF pinout, IRLL024ZPBF application, or IRLL024ZPBF equivalent, key selection criteria include verified R_DS(on) ≤ 80 mΩ at 3.0A/10V, gate charge Q_g = 7.0–11 nC, unclamped inductive switching capability, SOA compliance up to 5A/25V, and lead-free SOT-223 thermal performance (R_θJA = 45°C/W on copper PCB).

Technical Context

This HEXFET® device employs advanced silicon processing to minimize conduction loss per unit area while maintaining ruggedness against transient overloads. Its design integrates a co-packaged intrinsic body diode with t_rr = 15–23 ns and Q_rr = 9.1–14 nC, enabling efficient freewheeling in synchronous buck topologies without external Schottky supplementation.

The MOSFET operates with a gate threshold voltage V_GS(th) of 1.0–3.0 V and exhibits stable R_DS(on) temperature coefficient (0.049 V/°C), supporting reliable current sensing and thermal foldback in overcurrent protection circuits across –55°C to +150°C ambient range.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	55 V - Maximum drain-source blocking voltage; defines safe operation in 24V/48V industrial bus systems.
R_DS(on)	60 mΩ (typ), 80 mΩ (max) @ V_GS = 10 V - Enables <150 mW conduction loss at 5A, reducing heatsink requirements.
I_D	5.0 A @ T_A = 25°C - Continuous current rating suitable for medium-power switching loads.
Q_g	7.0–11 nC - Gate drive energy determines required driver strength and switching speed in PWM control.
t_rr	15–23 ns - Fast body diode recovery minimizes switching loss and voltage overshoot during hard commutation.
E_AS	38 mJ (tested) - Confirmed single-pulse avalanche energy supports unclamped inductive turn-off in relay/motor drives.
R_θJA	45°C/W (copper PCB) - Thermal resistance enables 1.0 W dissipation before reaching 150°C junction limit at 25°C ambient.

Pinout & Package

IRLL024ZPBF is housed in a surface-mount SOT-223 package with three terminals: Drain (D), Source (S), and Gate (G). The exposed drain pad provides enhanced thermal conduction to the PCB. Pin 1 = Gate, Pin 2 = Drain (tab), Pin 3 = Source, Pin 4 = Source (common with Pin 3).

Pin/Terminal	Circuit Role	Design Meaning
Gate (Pin 1)	Control input	Receives 0–10 V logic-level signal; requires ≤11 nC charge for full enhancement.
Drain (Pin 2 / Tab)	High-side power node	Connected to load supply rail; electrically tied to exposed metal tab for thermal and electrical conduction.
Source (Pins 3 & 4)	Reference node / return path	Common source connection for gate drive reference and load current return; low-inductance dual-pin layout reduces switching noise.

Key Features

Feature	Design Value
Ultra-low R_DS(on)	60 mΩ typ at 10 V gate drive - reduces I²R losses by >30% vs. legacy SOT-223 MOSFETs at same current.
150°C junction rating	Extended thermal margin allows operation in sealed enclosures or high-ambient environments without derating.
Repetitive avalanche rated	Tested to 38 mJ single-pulse and validated for repetitive use within SOA limits - eliminates need for external clamping in inductive snubbers.
Fast body diode	t_rr = 15–23 ns, Q_rr = 9.1–14 nC - enables clean zero-voltage switching transitions in synchronous rectification.

Applications

DC-DC Buck Converter

Brushed DC Motor Driver

Use Scenario: 12V-to-5V step-down converter delivering up to 4A continuous output in industrial PLC I/O modules.

IC Role / Device Role: Low-side synchronous rectifier switch replacing Schottky diode to improve efficiency above 85% at full load.

Use Value: 60 mΩ R_DS(on) cuts conduction loss by 1.2 W vs. 0.45 V diode drop, enabling passive cooling and higher power density.

Use Scenario: H-bridge driver for 24V, 3A brushed motors in automated valve actuators.

IC Role / Device Role: Low-side switch controlling motor direction and enabling regenerative braking via body diode conduction.

Use Value: 15–23 ns t_rr prevents shoot-through during polarity reversal and sustains 38 mJ avalanche energy during inductive flyback.

LED Constant-Current Driver

Hot-Swap Load Switch

Use Scenario: Linear+PWM dimmable LED driver powering 10W white LED strings in architectural lighting fixtures.

IC Role / Device Role: Precision current-sink switch modulated at 1–20 kHz to regulate LED brightness without color shift.

Use Value: Stable R_DS(on) tempco (0.049 V/°C) ensures consistent current regulation across –40°C to +85°C operating range.

Use Scenario: Inrush-limited 24V power distribution to field-replaceable modules in telecom shelf systems.

IC Role / Device Role: Controlled turn-on switch with soft-start enabled by gate resistor network and body diode reverse recovery management.

Use Value: Verified 5.0A continuous rating and 40A pulsed capability support 100 ms inrush surges while maintaining <100 mV dropout at steady state.

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
DMN3026LSD-13	R_DS(on) = 30 mΩ @ 4.5 V, SOT-23-3 package, lower current rating (3.2 A)	Better suited for space-constrained 3.3V/5V logic-driven loads; not rated for 55V bus or 5A continuous duty.	Select when board area is critical and gate drive is ≤5 V; avoid for 24V+ systems or >3A loads.
SI2302DS-T1-GE3	R_DS(on) = 75 mΩ @ 4.5 V, SOT-23 package, 2.6A continuous rating, no avalanche rating	Lacks repetitive avalanche validation and thermal margin; unsuitable for inductive switching or high-temp environments.	Acceptable only for low-energy, resistive switching below 10V; verify SOA compliance separately.

Compared with DMN3026LSD-13 and SI2302DS-T1-GE3, IRLL024ZPBF delivers superior 55V blocking, 5A thermal capability, and certified avalanche robustness-making it the only choice among the three for 24V motor control or industrial DC-DC designs requiring reliability under transient stress.

Availability

IRLL024ZPBF is available at Aetrix Electronics and suitable for DC-DC converters, brushed motor drivers, LED current sinks, and hot-swap load switches requiring stable component supply, long-term manufacturability, and RoHS-compliant lead-free packaging.

Supply support for IRLL024ZPBF 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 manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification to ISO 9001 and IATF 16949.

The HEXFET® Power MOSFET product line targets high-efficiency, thermally demanding power conversion applications-including industrial motor drives, server VRMs, and renewable energy inverters-where low R_DS(on), fast switching, and rugged avalanche performance are mandatory.

FAQ

Is IRLL024ZPBF suitable for 3.3V logic-level gate drive?

No. IRLL024ZPBF has a gate threshold voltage range of 1.0–3.0 V but is specified for R_DS(on) ≤ 80 mΩ only at V_GS = 10 V. At 3.3 V, R_DS(on) exceeds 250 mΩ, causing excessive conduction loss. Use logic-level variants like IRLML6344TRPBF instead for 3.3 V drive.

What is the maximum allowable continuous drain current at 70°C ambient?

Per datasheet, continuous drain current is derated to 4.0 A at T_A = 70°C with standard PCB mounting. This reflects thermal limitation-not silicon current capacity-and assumes 45°C/W junction-to-ambient resistance on copper-clad FR-4.

Does IRLL024ZPBF require a gate resistor for EMI suppression?

Yes. A 10–56 Ω series gate resistor is recommended to dampen ringing caused by parasitic L_GD/C_iss resonance. Test data shows optimal switching (minimal V_DS overshoot and dV/dt) at R_G = 56 Ω with 3.0 A load and 28 V bus, per Figure 18a/b.

Can the body diode be used for reverse polarity protection?

No. The intrinsic body diode conducts forward from source to drain, making it unsuitable for reverse polarity protection. For that function, an external P-channel MOSFET or dedicated protection IC must be used; IRLL024ZPBF's diode is optimized for freewheeling, not blocking.

IRLL024ZPBF 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:: 5A (Tc)

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

Rds On (Max) @ Id, Vgs:: 60mOhm @ 3A, 10V

Vgs(th) (Max) @ Id:: 3V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 11 nC @ 5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 380 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

IRLL024ZPBF FAQ

1.How can I place an order for IRLL024ZPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRLL024ZPBF 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 IRLL024ZPBF reliable?

The price and inventory of IRLL024ZPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRLL024ZPBF is usually 5 days.

3.What payment methods are accepted for IRLL024ZPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRLL024ZPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRLL024ZPBF?

IRLL024ZPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRLL024ZPBF 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 IRLL024ZPBF?

For technical support, including IRLL024ZPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRLL024ZPBF requirements.

6.How does Aetrix verify that IRLL024ZPBF is sourced from the original manufacturer or authorized distributors?

All IRLL024ZPBF 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 IRLL024ZPBF meets industry standards.

7.What is the process for return or replacement of IRLL024ZPBF?

All IRLL024ZPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRLL024ZPBF, 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 IRLL024ZPBF part is unused and in its original packaging.

Return procedure for IRLL024ZPBF:

1.Submit a request within 90 days.

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

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