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Vishay Siliconix IRFI520GPBF
- Part No.:
- IRFI520GPBF
- Manufacturer:
- Vishay Siliconix
- Category:
- FETs, MOSFETs
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
IRFI520GPBF.pdf
- Description:
- MOSFET N-CH 100V 7.2A TO220-3
- Quantity:
- Payment:
- Shipping:
Inventory:919
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Product details
Overview
IRFI520GPBF from Vishay Siliconix is a 100 V, 7.2 A N-channel power MOSFET in TO-220 FULLPAK isolated package, featuring 0.27 Ω RDS(on) at VGS = 10 V, 2.5 kVRMS isolation rating, and 175 °C maximum junction temperature - deployed in industrial AC/DC power supplies, motor control circuits, and DC-DC converter primary-side switching.
For engineers reviewing the IRFI520GPBF datasheet, IRFI520GPBF pinout, IRFI520GPBF application, or IRFI520GPBF equivalent, this page delivers verified electrical parameters, thermal performance data, isolation-critical mounting guidance, and direct alternative comparisons for high-voltage discrete selection in thermally constrained or safety-isolated designs.
Technical Context
This third-generation power MOSFET uses planar V-groove technology to achieve rugged unclamped inductive switching (UIS) capability with 36 mJ single-pulse avalanche energy and 5.5 V/ns peak diode recovery dV/dt rating. Its low 4.1 °C/W junction-to-case thermal resistance enables efficient heatsink coupling without mica insulation.
The TO-220 FULLPAK package integrates an electrically isolated drain tab with 4.8 mm sink-to-lead creepage distance and 12 pF drain-to-sink capacitance - enabling direct metal heatsink mounting via single screw or clip while maintaining reinforced isolation per IEC 60950-1 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V - supports 80 V DC bus applications with 20 % margin for voltage transients |
| RDS(on) | 0.27 Ω @ VGS = 10 V - limits conduction loss to ≤1.4 W at 7.2 A continuous drain current |
| Qg | 16 nC - determines gate drive power requirement and switching speed in hard-switched topologies |
| ID (TC = 100 °C) | 5.1 A - defines usable current derating in enclosed industrial enclosures with limited airflow |
| EAS | 36 mJ - enables reliable operation under unclamped inductive load turn-off without external snubbers |
| TJ max | 175 °C - allows sustained operation in high-ambient environments such as sealed motor drives |
| dV/dt (diode) | 5.5 V/ns - ensures robust commutation in fast-recovery rectifier replacement applications |
Pinout & Package
IRFI520GPBF uses the TO-220 FULLPAK package: isolated plastic body with electrically insulated drain tab, 3-pin vertical lead configuration, 15.87 mm height, and 10.10 mm width. Mounting requires M3 screw (0.6 Nm torque) or spring clip directly to heatsink - no additional insulator needed.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G | Gate | Controls channel conduction; requires ≥10 V drive for full enhancement; max ±20 V rating |
| D | Drain | High-side switching node; electrically isolated tab serves as thermal path and high-voltage reference |
| S | Source | Power return path and gate reference; tied to PCB ground plane in low-side configurations |
Key Features
| Feature | Design Value |
|---|---|
| 2.5 kVRMS isolation (60 s) | Eliminates need for mica washers or silicone pads in safety-critical 230 VAC input stages |
| 4.8 mm creepage distance | Meets reinforced insulation requirements for industrial equipment per IEC 60950-1 |
| Low RthJC = 4.1 °C/W | Enables 37 W power dissipation with ≤80 °C case-to-ambient rise using standard extruded heatsinks |
| Dynamic dV/dt rating | Withstands 5.5 V/ns during body diode commutation - reduces risk of false turn-on in bridge legs |
| 175 °C operating temperature | Supports extended lifetime in sealed enclosures where ambient exceeds 85 °C |
Applications
| Industrial AC/DC Power Supply | Brushed DC Motor Drive |
|---|---|
Use Scenario: Primary-side switch in 100–200 W offline flyback converters powering PLC I/O modules. IC Role / Device Role / Timing Role: High-voltage switching element handling 100 V DC link with 65 kHz PWM duty cycling. Use Value: 0.27 Ω RDS(on) minimizes conduction loss at 7.2 A peak, while 2.5 kVRMS isolation eliminates external barrier requirements. |
Use Scenario: H-bridge high-side switch controlling 24 V brushed motors in automated valve actuators. IC Role / Device Role / Timing Role: Power switch delivering up to 5.1 A continuous current at 100 °C case temperature. Use Value: 175 °C TJ rating ensures reliability under stall conditions; 36 mJ EAS absorbs inductive kickback without snubber. |
| DC-DC Converter Primary | Lighting Ballast Control |
Use Scenario: Main switch in 48 V input, 12 V output forward converter for telecom shelf power. IC Role / Device Role / Timing Role: Synchronous rectifier driver interface with 16 nC Qg compatible with standard gate drivers. Use Value: Low Qgd/Qgs ratio (7.7/4.4) improves hard-switching efficiency and reduces Miller-induced oscillation risk. |
Use Scenario: Lamp ignition switch in electronic HID ballasts requiring high-voltage pulse generation. IC Role / Device Role / Timing Role: Fast-turning switch generating >300 V ignition pulses across lamp electrodes. Use Value: 5.5 V/ns diode recovery dV/dt prevents false triggering during rapid polarity reversal in resonant igniters. |
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 |
|---|---|---|---|
| STP10NK100ZFP | 1000 V VDS, 10 A ID, higher RDS(on) = 0.95 Ω, TO-220FP package without isolation | Designed for high-voltage PFC stages; lacks 2.5 kVRMS isolation and creepage compliance | Select when higher breakdown voltage is required and external isolation hardware is acceptable |
| FQP5N10L | 100 V VDS, 5.1 A ID, logic-level VGS(th) = 1.5–2.5 V, TO-220 package, non-isolated | Optimized for 3.3/5 V microcontroller drive; no isolation, lower current rating, higher RDS(on) = 0.45 Ω | Choose for low-voltage gate drive simplicity where isolation and thermal headroom are not critical |
Compared with STP10NK100ZFP and FQP5N10L, the IRFI520GPBF uniquely combines 100 V rating, 7.2 A current capability, 0.27 Ω on-resistance, and certified 2.5 kVRMS isolation - making it the only option among the three suitable for space-constrained, safety-isolated industrial power stages without added insulation layers.
Availability
IRFI520GPBF is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, brushed DC motor drives, and DC-DC converter primary-side switching requiring stable component supply, long-term lifecycle support, and traceable sourcing from qualified manufacturing facilities.
Supply support for IRFI520GPBF 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
Vishay Siliconix is a global leader in discrete semiconductors, specializing in high-reliability MOSFETs, diodes, and optoelectronics for demanding industrial, automotive, and computing applications.
The IRFI520GPBF belongs to Vishay's third-generation high-voltage power MOSFET family, engineered for ruggedized switching in isolated power conversion systems where thermal efficiency, avalanche robustness, and safety certification are critical.
FAQ
What is the maximum continuous drain current for IRFI520GPBF at 100 °C case temperature?
The IRFI520GPBF supports 5.1 A continuous drain current at TC = 100 °C, as specified in the Absolute Maximum Ratings table. This derated value reflects thermal limitations under sustained high-temperature operation and must be used for thermal design validation - not the 7.2 A rating specified at 25 °C.
Does IRFI520GPBF require external insulation when mounted to a heatsink?
No, the IRFI520GPBF does not require external insulation when mounted to a heatsink. Its TO-220 FULLPAK package provides 2.5 kVRMS isolation between drain and heatsink, with 4.8 mm creepage distance - eliminating the need for mica washers, silicone pads, or insulating sleeves in compliant designs.
What is the gate threshold voltage range for IRFI520GPBF?
The gate-source threshold voltage (VGS(th)) for IRFI520GPBF is specified from 2.0 V to 4.0 V at TJ = 25 °C and ID = 250 μA. This range confirms standard-level gate drive compatibility - requiring ≥10 V for full enhancement and ensuring immunity to noise-induced turn-on below 2 V.
Can IRFI520GPBF be used in avalanche-rated applications?
Yes, the IRFI520GPBF is rated for repetitive avalanche operation with IAR = 7.2 A and EAR = 3.7 mJ, and single-pulse avalanche energy of 36 mJ. These values are validated per test condition b in the datasheet (VDD = 25 V, L = 1.0 mH, Rg = 25 Ω), supporting use in inductive load switching without external protection.
What is the drain-to-sink capacitance of IRFI520GPBF and why does it matter?
The drain-to-sink capacitance of IRFI520GPBF is 12 pF, measured at 1 MHz. This low value minimizes displacement current during high dV/dt transitions, reducing EMI generation and improving noise immunity in high-frequency switching applications such as SMPS and motor inverters.
IRFI520GPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- 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:
- 7.2A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 270mOhm @ 4.3A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 16 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 360 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 37W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
IRFI520GPBF FAQ
1.How can I place an order for IRFI520GPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRFI520GPBF 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 IRFI520GPBF reliable?
The price and inventory of IRFI520GPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFI520GPBF is usually 5 days.
3.What payment methods are accepted for IRFI520GPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFI520GPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRFI520GPBF?
IRFI520GPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRFI520GPBF 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 IRFI520GPBF?
For technical support, including IRFI520GPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFI520GPBF requirements.
6.How does Aetrix verify that IRFI520GPBF is sourced from the original manufacturer or authorized distributors?
All IRFI520GPBF 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 IRFI520GPBF meets industry standards.
7.What is the process for return or replacement of IRFI520GPBF?
All IRFI520GPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFI520GPBF, 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 IRFI520GPBF part is unused and in its original packaging.
Return procedure for IRFI520GPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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