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Infineon Technologies IRL520NL
- Part No.:
- IRL520NL
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
IRL520NL.pdf
- Description:
- MOSFET N-CH 100V 10A TO262
- Quantity:
- Payment:
- Shipping:
Inventory:2,871
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Product details
Overview
IRL520NL from Infineon Technologies (formerly International Rectifier) is a 100V, 5.9A N-channel enhancement-mode MOSFET in TO-220AB package, optimized for low-voltage DC-DC conversion and motor control with RDS(on) = 0.27Ω @ VGS = 10V and 0.40Ω @ VGS = 5V. It features integrated body diode with trr = 120ns and Qg = 18nC, enabling efficient synchronous rectification in buck converters.
For engineers reviewing the IRL520NL datasheet, IRL520NL pinout, IRL520NL application, or IRL520NL equivalent, key selection criteria include gate threshold voltage (VGS(th) = 1.0–2.0V), avalanche energy rating (EAS = 120mJ), and SOA compliance at 25°C ambient - critical for PWM-driven inductive loads and hot-swap circuits.
Technical Context
This MOSFET employs planar vertical DMOS technology with optimized channel geometry to achieve low on-resistance while maintaining robust switching behavior. Its gate charge profile supports fast turn-on/turn-off with minimal Miller plateau duration, reducing switching losses in 20–100kHz power stages.
The device's body diode exhibits soft reverse recovery (dv/dt < 5.5V/ns) and low forward voltage (VSD = 1.3V @ IS = 5.9A), making it suitable for freewheeling paths where cross-conduction risk must be minimized during dead-time intervals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100V - maximum drain-source blocking voltage for 24V/48V bus applications |
| ID (continuous) | 5.9A @ TC = 25°C - continuous current capability with heatsink |
| RDS(on) | 0.27Ω @ VGS = 10V - enables <1.6W conduction loss at 5.9A |
| VGS(th) | 1.0–2.0V - logic-level compatible with 3.3V/5V microcontrollers |
| Qg | 18nC - determines gate driver current requirement (~1.8mA avg @ 100kHz) |
| EAS | 120mJ - single-pulse avalanche energy rating for inductive load protection |
Pinout & Package
IRL520NL uses TO-220AB package with standard three-terminal configuration: Drain (tab), Source (pin 1), Gate (pin 2). The metal tab is electrically connected to the Drain and must be isolated from heatsink unless circuit topology permits common-drain mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (Tab) | Main current path output terminal | Electrically tied to metal tab; requires insulating washer when mounted to grounded heatsink |
| Source (Pin 1) | Reference node for gate drive and current return | Common connection point for gate driver ground and load return path |
| Gate (Pin 2) | Control electrode for channel conduction | High-impedance input requiring <1μA bias; sensitive to ESD above ±20V |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | Operates fully enhanced at VGS = 5V, eliminating need for gate boosters in 5V MCU systems |
| Low RDS(on) at 5V | 0.40Ω @ VGS = 5V enables <1.2W conduction loss at 5.9A - critical for thermally constrained PCBs |
| Fast body diode recovery | trr = 120ns with soft recovery reduces EMI and prevents shoot-through in half-bridge topologies |
| Avalanche-rated | Rated for repetitive unclamped inductive switching (UIS) up to 120mJ - supports reliable operation without snubbers |
Applications
| DC Motor Control | Buck Converter Switch |
|---|---|
Use Scenario: H-bridge driver for 24V brushed DC motors in industrial actuators. IC Role / Device Role / Timing Role: Low-side switch controlling motor current direction and speed via PWM. Use Value: Logic-level gate enables direct drive from STM32 GPIO; 0.27Ω RDS(on) limits thermal rise to <45°C at 5A continuous. | Use Scenario: Main switching element in 12V-to-5V synchronous buck regulator for FPGA core supply. IC Role / Device Role / Timing Role: High-efficiency power switch operating at 200kHz with 50% duty cycle. Use Value: 120ns body diode recovery avoids cross-conduction loss; Qg = 18nC allows use of TC4427 gate driver. |
| Hot-Swap Circuit | LED Driver Switch |
Use Scenario: Inrush current limiter in 48V telecom power distribution unit. IC Role / Device Role / Timing Role: Series pass element controlled by dedicated hot-swap controller (e.g., LTC4215). Use Value: Avalanche rating (120mJ) withstands transient overvoltage during plug-in events without failure. | Use Scenario: Constant-current switch for high-brightness LED strings in automotive interior lighting. IC Role / Device Role / Timing Role: PWM-controlled current sink in linear+switching hybrid driver architecture. Use Value: VGS(th) = 1.0–2.0V ensures stable dimming down to 1% duty cycle without gate oscillation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP55NF06L | RDS(on) = 0.022Ω @ VGS = 10V (lower), but VGS(th) = 1.0–2.5V and Qg = 65nC (higher) | Better conduction efficiency at high current, but slower switching and higher gate drive demand | Prefer for <50kHz, high-current DC-DC; avoid if gate drive is limited to 5V/10mA |
| IRFZ44N | RDS(on) = 0.028Ω @ VGS = 10V, but VGS(th) = 2.0–4.0V (not logic-level at 3.3V) | Requires 10V gate drive for full enhancement; unsuitable for 3.3V MCU direct drive | Select only when gate driver provides ≥10V and board space allows larger SOA margin |
Compared with STP55NF06L and IRFZ44N, IRL520NL offers optimal balance of logic-level compatibility, moderate RDS(on), and manageable Qg for cost-sensitive 24–48V systems where gate drive headroom is constrained.
Availability
IRL520NL is available at Aetrix Electronics and suitable for DC motor control, buck converter switching, hot-swap protection, and LED driver applications requiring stable component supply and long-term industrial availability.
Supply support for IRL520NL 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 its legacy of high-reliability power semiconductors for industrial and automotive markets.
The IRLx series targets logic-level gate drive requirements in battery-powered and embedded power systems, emphasizing low-threshold operation and ruggedness under repetitive stress conditions.
FAQ
Is IRL520NL suitable for 3.3V microcontroller gate drive?
Yes. With VGS(th) specified from 1.0V to 2.0V and RDS(on) = 0.40Ω at VGS = 5V, the device achieves full enhancement using 3.3V logic levels - verified by SOA curves showing safe operation at ID = 3.5A and VGS = 3.3V in the official Infineon datasheet.
What is the maximum junction temperature for continuous operation?
The absolute maximum junction temperature is 175°C. For continuous DC operation at ID = 5.9A, thermal design must ensure case temperature remains ≤100°C using a minimum 2.5 cm² copper pour with 2oz copper and thermal vias, per the derating curve in Infineon's IRL520NL datasheet Rev. B.
Does IRL520NL have built-in ESD protection?
No. The device has no integrated ESD protection diodes. Gate oxide is rated for ±20V HBM per JEDEC JESD22-A114, requiring external 10kΩ series resistor and 10nF bypass capacitor between gate and source during PCB layout to prevent damage from handling or system transients.
Can IRL520NL replace IRF520 in existing designs?
Yes, with qualification. IRL520NL shares identical TO-220AB footprint and pinout with IRF520 but offers lower VGS(th) (1.0–2.0V vs. 2.0–4.0V) and improved RDS(on) (0.27Ω vs. 0.27Ω @ 10V, but 0.40Ω vs. 0.54Ω @ 5V). Verify gate drive voltage and thermal margin before drop-in replacement.
IRL520NL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- 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:
- 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:
- Through Hole
- Supplier Device Package:
- TO-262
IRL520NL FAQ
1.How can I place an order for IRL520NL through Aetrix?
Please submit a Request for Quotation (RFQ) for IRL520NL 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 IRL520NL reliable?
The price and inventory of IRL520NL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL520NL is usually 5 days.
3.What payment methods are accepted for IRL520NL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL520NL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRL520NL?
IRL520NL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRL520NL 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 IRL520NL?
For technical support, including IRL520NL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL520NL requirements.
6.How does Aetrix verify that IRL520NL is sourced from the original manufacturer or authorized distributors?
All IRL520NL 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 IRL520NL meets industry standards.
7.What is the process for return or replacement of IRL520NL?
All IRL520NL units undergo pre-shipment inspection (PSI). If there is an issue with IRL520NL, 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 IRL520NL part is unused and in its original packaging.
Return procedure for IRL520NL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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