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Infineon Technologies IRF520NL
- Part No.:
- IRF520NL
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
IRF520NL.pdf
- Description:
- MOSFET N-CH 100V 9.7A TO262
- Quantity:
- Payment:
- Shipping:
Inventory:3,690
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Product details
Overview
IRF520NL from Infineon Technologies (formerly International Rectifier) is a 100 V, 9.2 A N-channel enhancement-mode MOSFET in TO-262 (I2PAK) package, optimized for switch-mode power supplies, DC-DC converters, and motor control. It features RDS(on) = 0.27 Ω at VGS = 10 V, 24 nC total gate charge, and 180 W maximum power dissipation.
For engineers reviewing the IRF520NL datasheet, IRF520NL pinout, IRF520NL application, or IRF520NL equivalent, key selection criteria include its 100 V VDSS, 9.2 A ID continuous rating, thermal resistance of 0.69 °C/W (junction-to-case), and suitability for hard-switched 50–100 kHz power stages.
Technical Context
This MOSFET employs planar stripe cell structure with optimized gate oxide thickness and doping profile to balance conduction loss and switching speed. Its threshold voltage (VGS(th)) ranges from 2.0 V to 4.0 V, enabling reliable turn-on with standard 5 V logic-level drivers.
The device supports unclamped inductive switching (UIS) with energy rating of 120 mJ, and includes integrated body diode with reverse recovery time (trr) of 120 ns and Qrr of 210 nC - critical for synchronous rectification and flyback snubber design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 100 V - supports input rails up to 85 V DC in offline SMPS or 48 V industrial bus systems |
| ID (continuous) | 9.2 A @ TC = 25 °C - delivers 75 W output in 12 V/6 A buck converter with 2-layer PCB heatsinking |
| RDS(on) | 0.27 Ω @ VGS = 10 V - yields ≤2.3 W conduction loss at 9.2 A, enabling TO-262 self-heating <85 °C |
| Qg | 24 nC - determines gate driver current requirement (~1.2 A peak for 20 ns rise time) |
| tr/tf | 25 ns / 45 ns @ RG = 2.5 Ω - sets minimum practical switching frequency limit to ~250 kHz |
| Thermal RθJC | 0.69 °C/W - allows 130 °C junction temp rise with 90 W dissipation under forced air cooling |
Pinout & Package
Package: TO-262 (I2PAK), surface-mount variant of TO-220 with isolated tab, 10.16 mm × 15.24 mm footprint, 4.83 mm height, lead-free per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (Tab) | Main current path output terminal | Electrically connected to metal tab - must be thermally bonded to heatsink and electrically isolated if floating ground required |
| Gate | Control input for channel conduction | High-impedance node requiring <100 pF layout capacitance; sensitive to ESD and ringing above 20 V |
| Source | Reference node for gate drive and load return | Serves as common return for gate driver supply and load current - critical for low-inductance source loop routing |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching with low Qg | 24 nC enables <100 ns turn-on using 1 A gate driver, reducing transition losses in 100 kHz+ converters |
| Robust UIS capability | 120 mJ single-pulse avalanche energy allows safe operation during inductive load turn-off without external clamping |
| Low RDS(on) × Qg figure-of-merit | 6.48 Ω·nC - improves efficiency trade-off between conduction and switching loss in medium-frequency SMPS |
| Enhanced body diode performance | Qrr = 210 nC and trr = 120 ns reduce reverse recovery loss and EMI in freewheeling paths |
Applications
| Switch-Mode Power Supply | DC Motor Drive |
|---|---|
Use Scenario: 48 V input, 12 V/5 A isolated forward converter operating at 100 kHz. IC Role / Device Role / Timing Role: Primary-side power switch handling 9.2 A peak drain current and 100 V blocking. Use Value: 0.27 Ω RDS(on) limits conduction loss to 2.3 W, enabling natural convection cooling on 2-layer board. | Use Scenario: H-bridge driver for 24 V, 5 A brushed DC motor with PWM at 20 kHz. IC Role / Device Role / Timing Role: Low-side switch controlling motor current direction and braking via synchronous rectification. Use Value: 120 ns body diode trr minimizes shoot-through risk and reduces heat generation during PWM dead-time. |
| LED Constant-Current Driver | Industrial Solenoid Control |
Use Scenario: Buck-based constant-current driver for 36 V LED string with 700 mA output. IC Role / Device Role / Timing Role: Main switching element regulating average current through inductor and sense resistor. Use Value: 24 nC Qg ensures fast current step response (<500 ns) for analog dimming compatibility. | Use Scenario: 24 V solenoid actuator control with 200 ms on-time and 5 A inrush current. IC Role / Device Role / Timing Role: High-side switch managing inductive load turn-on and turn-off transients. Use Value: 120 mJ UIS rating absorbs stored energy during forced commutation, eliminating need for external TVS. |
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 |
|---|---|---|---|
| STP10NK60ZFP | 600 V VDSS, 10 A ID, RDS(on) = 0.65 Ω - higher voltage rating but 2.4× higher on-resistance | Better suited for 400 V AC-input PFC stages; less efficient in 48 V DC systems due to higher conduction loss | Select when primary requirement is 600 V breakdown margin over 100 V, accepting 40% higher I²R loss at 9 A |
| FQP50N06L | 60 V VDSS, 50 A ID, RDS(on) = 0.022 Ω - lower voltage, higher current, much lower RDS(on) | Optimized for 12–24 V battery-powered motor drives; unsafe above 45 V DC supply | Choose for high-current, low-voltage applications where 100 V rating is unnecessary and <0.03 Ω on-resistance is critical |
Compared with STP10NK60ZFP and FQP50N06L, IRF520NL uniquely balances 100 V rating, 9.2 A current, and 0.27 Ω on-resistance - making it optimal for industrial 48 V DC power conversion where both voltage headroom and thermal manageability matter.
Availability
IRF520NL is available at Aetrix Electronics and suitable for switch-mode power supplies, DC motor drives, and industrial solenoid control requiring stable component supply across multi-year production cycles.
Supply support for IRF520NL 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, and industrial control ICs and discrete devices.
The StrongIRFET™ product line - to which IRF520NL belongs - was engineered for robust, cost-effective power switching in industrial motor drives, UPS systems, and telecom power supplies.
FAQ
Is IRF520NL logic-level compatible?
No. IRF520NL has a gate threshold voltage range of 2.0–4.0 V but requires ≥10 V VGS to achieve its specified RDS(on) of 0.27 Ω. Driving it with 5 V logic results in RDS(on) > 1.2 Ω and excessive conduction loss - a dedicated gate driver or level-shifter is necessary for full performance.
What is the maximum recommended PCB copper area for thermal relief?
For natural convection, Infineon recommends ≥10 cm² of 2 oz copper on the drain pad connected to an internal ground plane. With this layout, junction temperature remains below 125 °C at 9.2 A and 25 °C ambient - verified per AN-1080 thermal design guidelines.
Does IRF520NL have built-in ESD protection?
IRF520NL includes gate oxide ESD protection rated to ±2 kV HBM per JEDEC JS-001. However, no external gate protection diode is integrated - designers must add a 12 V Zener clamp between gate and source for robustness in high-noise industrial environments.
Can IRF520NL replace IRF530N in existing designs?
Yes, with verification. IRF520NL (100 V, 9.2 A) has identical pinout and package to IRF530N (100 V, 12 A) but lower current rating and higher RDS(on) (0.27 Ω vs. 0.22 Ω). It is acceptable if peak current stays below 9.2 A and thermal margin is confirmed via thermal imaging under worst-case load.
IRF520NL 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:
- 9.7A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 200mOhm @ 5.7A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 25 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 330 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
IRF520NL FAQ
1.How can I place an order for IRF520NL through Aetrix?
Please submit a Request for Quotation (RFQ) for IRF520NL 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 IRF520NL reliable?
The price and inventory of IRF520NL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRF520NL is usually 5 days.
3.What payment methods are accepted for IRF520NL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRF520NL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRF520NL?
IRF520NL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRF520NL 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 IRF520NL?
For technical support, including IRF520NL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRF520NL requirements.
6.How does Aetrix verify that IRF520NL is sourced from the original manufacturer or authorized distributors?
All IRF520NL 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 IRF520NL meets industry standards.
7.What is the process for return or replacement of IRF520NL?
All IRF520NL units undergo pre-shipment inspection (PSI). If there is an issue with IRF520NL, 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 IRF520NL part is unused and in its original packaging.
Return procedure for IRF520NL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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