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

Infineon Technologies IRL520NSTRLPBF

Name: IRL520NSTRLPBF
Brand: Infineon Technologies
SKU: IRL520NSTRLPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL520NSTRLPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: IRL520NSTRLPBF.pdf

Description:: MOSFET N-CH 100V 10A D2PAK

Quantity:: RFQ Add To RFQ list

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Inventory:4,965

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Product details

Overview

IRL520NSTRLPBF from Infineon Technologies (formerly International Rectifier) is a 100V, 5.5A N-channel logic-level power MOSFET in TO-220AB package, with R_DS(on) = 0.27Ω @ V_GS = 10V and 0.33Ω @ V_GS = 5V, optimized for DC-DC converters and motor control switching applications.

For engineers reviewing the IRL520NSTRLPBF datasheet, IRL520NSTRLPBF pinout, IRL520NSTRLPBF application, or IRL520NSTRLPBF equivalent, key selection criteria include logic-level gate drive compatibility, body diode recovery performance, continuous drain current rating at elevated temperature, and TO-220 thermal interface capability.

Technical Context

This MOSFET features a planar silicon process with optimized channel geometry for low gate charge (Q_g = 16nC typical) and fast switching (t_rise = 14ns, t_fall = 12ns @ R_G = 2.5Ω). Its body diode exhibits reverse recovery time (t_rr) of 85ns and peak reverse recovery current (I_rrm) of 2.2A under specified test conditions.

The device supports unclamped inductive switching (UIS) up to 100mJ at T_J = 25°C and operates with gate threshold voltage (V_GS(th)) between 1.0V and 2.0V, enabling direct interfacing with 3.3V and 5V microcontroller outputs without level-shifting circuitry.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100V - maximum drain-source blocking voltage for use in 48V bus and flyback primary-side switching
I_D (continuous)	5.5A @ T_C = 25°C - sustained current handling with TO-220 heatsink mounting
R_DS(on)	0.27Ω @ V_GS = 10V - conduction loss of 8.2W at 5.5A, defining thermal design margin
Q_g	16nC - total gate charge determining driver strength requirement and switching loss trade-off
t_rr	85ns - body diode recovery speed limiting hard-switched synchronous rectifier efficiency
V_GS(th)	1.0–2.0V - ensures full enhancement with 3.3V logic-level signals, eliminating external gate drivers

Pinout & Package

Package: TO-220AB (3-lead, through-hole, lead-free, RoHS-compliant), with drain-connected tab for direct heatsinking.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main high-side current path and thermal interface	Electrically connected to metal tab; requires insulating washer when mounted to grounded heatsink
Gate	Control terminal for channel modulation	High-impedance input requiring <1μA bias; sensitive to ESD and ringing without proper gate resistor
Source	Reference node for gate drive and current return path	Common connection point for load return, gate driver ground, and sense resistor placement

Key Features

Feature	Design Value
Logic-level gate drive	Operates fully enhanced at V_GS ≥ 5V, compatible with standard microcontroller GPIO without level shifters
Low R_DS(on) at 5V	0.33Ω @ V_GS = 5V enables efficient operation in battery-powered 5V systems
Fast body diode recovery	85ns t_rr reduces switching losses in freewheeling paths of buck and half-bridge topologies
Robust UIS rating	100mJ single-pulse avalanche energy supports reliable operation during inductive load transients

Applications

DC-DC Converter Switch

Brushed DC Motor Driver

Use Scenario: Primary-side switch in non-isolated buck converter supplying 3.3V/5V rails from 12–48V input.

IC Role / Device Role / Timing Role: High-side power switch controlled by PWM signal; duty cycle determines output voltage regulation.

Use Value: Low Q_g and R_DS(on) minimize conduction and switching losses, improving efficiency above 85% at 2A load.

Use Scenario: H-bridge low-side switch driving 12V brushed motor in automotive seat adjuster module.

IC Role / Device Role / Timing Role: Ground-referenced current path switch; commutated at ≤20kHz to control direction and torque.

Use Value: Logic-level V_GS(th) allows direct MCU GPIO control, reducing BOM count and PCB area.

LED Constant-Current Driver

Power Supply OR-ing Circuit

Use Scenario: Series-pass switch regulating current through high-brightness LED string in industrial signage.

IC Role / Device Role / Timing Role: Linear-mode current regulator operating in active region with external sense resistor feedback.

Use Value: Specified SOA curve supports 1.5A continuous linear operation at T_C = 70°C, enabling compact thermal design.

Use Scenario: Back-to-back configuration for redundant 24V DC power inputs in telecom shelf management unit.

IC Role / Device Role / Timing Role: Reverse-polarity protected, low-loss forward conduction path replacing Schottky diodes.

Use Value: R_DS(on) = 0.27Ω cuts forward voltage drop to 0.15V at 0.55A, reducing heat generation by >70% vs. diode solution.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel logic-level power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP55NF06L	R_DS(on) = 0.022Ω @ 10V, higher I_D = 55A, larger TO-220FP package	Better suited for high-current, low-duty-cycle pulse loads due to higher SOA rating	Select when thermal headroom and peak current exceed IRL520NSTRLPBF limits; verify gate drive capability for 36nC Q_g
IRLB8721PBF	R_DS(on) = 0.015Ω @ 4.5V, SO-8 package, lower voltage rating (30V)	Targeted at low-voltage synchronous buck stages where board space and gate drive voltage are constrained	Choose for compact 3.3V/5V point-of-load designs; not suitable for 48V bus applications

Compared with STP55NF06L and IRLB8721PBF, the IRL520NSTRLPBF provides optimal balance of 100V rating, logic-level drive, TO-220 thermal interface, and cost for mid-power industrial DC-DC and motor control-neither over-specified nor under-rated for its target use cases.

Availability

IRL520NSTRLPBF is available at Aetrix Electronics and suitable for DC-DC converters, brushed DC motor drivers, and LED constant-current regulators requiring stable component supply across production lifecycles.

Supply support for IRL520NSTRLPBF 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 maintains its power MOSFET product lines with full technical documentation and long-term manufacturing commitment.

The StrongIRFET™ family, including IRL520NSTRLPBF, was designed specifically for industrial and consumer power conversion applications demanding robustness, logic-level drive, and proven reliability in thermally constrained environments.

FAQ

Is IRL520NSTRLPBF suitable for use in linear mode (constant-current regulation)?

Yes. The device specifies Safe Operating Area (SOA) curves for DC, pulsed, and linear operation up to 1.5A at T_C = 70°C. Its low R_DS(on) and defined thermal resistance (R_θJC = 2.5°C/W) enable stable linear-mode use in LED drivers and lab power supplies when properly heatsinked.

What is the maximum recommended gate resistor value for switching at 100kHz?

A 10Ω gate resistor is recommended for 100kHz PWM operation with standard 5V logic drivers. This value balances switching speed (t_rise/t_fall ≈ 25ns) against gate ringing and EMI, while keeping peak gate current below 0.5A to avoid driver overstress.

Does IRL520NSTRLPBF have built-in ESD protection on the gate?

No. The device lacks integrated gate protection diodes. External TVS or RC snubbers are required on the gate trace when exposed to handling or system-level ESD events. Gate oxide breakdown voltage is rated at ±20V, making it susceptible to damage from static discharge above this threshold.

Can IRL520NSTRLPBF replace IRF520 in existing designs?

Yes, with verification. IRL520NSTRLPBF offers identical pinout and voltage rating but lower R_DS(on) (0.27Ω vs. 0.9Ω) and logic-level drive (V_GS(th) ≤2.0V vs. 2.0–4.0V), enabling faster switching and reduced gate drive complexity. Thermal design must be re-evaluated due to higher power density.

IRL520NSTRLPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 10A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4V, 10V

Rds On (Max) @ Id, Vgs:: 180mOhm @ 6A, 10V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 20 nC @ 5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 440 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 3.8W (Ta), 48W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

IRL520NSTRLPBF FAQ

1.How can I place an order for IRL520NSTRLPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL520NSTRLPBF 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 IRL520NSTRLPBF reliable?

The price and inventory of IRL520NSTRLPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL520NSTRLPBF is usually 5 days.

3.What payment methods are accepted for IRL520NSTRLPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL520NSTRLPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL520NSTRLPBF?

IRL520NSTRLPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL520NSTRLPBF 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 IRL520NSTRLPBF?

For technical support, including IRL520NSTRLPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL520NSTRLPBF requirements.

6.How does Aetrix verify that IRL520NSTRLPBF is sourced from the original manufacturer or authorized distributors?

All IRL520NSTRLPBF 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 IRL520NSTRLPBF meets industry standards.

7.What is the process for return or replacement of IRL520NSTRLPBF?

All IRL520NSTRLPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRL520NSTRLPBF, 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 IRL520NSTRLPBF part is unused and in its original packaging.

Return procedure for IRL520NSTRLPBF:

1.Submit a request within 90 days.

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

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