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Vishay Siliconix IRFU9020PBF
- Part No.:
- IRFU9020PBF
- Manufacturer:
- Vishay Siliconix
- Category:
- FETs, MOSFETs
- Package:
- TO-251-3 Short Leads, IPAK, TO-251AA
- Datasheet:
-
IRFU9020PBF.pdf
- Description:
- MOSFET P-CH 50V 9.9A TO251AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,140
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Product details
Overview
IRFU9020PBF from Vishay Siliconix is a P-channel enhancement-mode power MOSFET in IPAK (TO-251) package, rated for -50 V VDS, 0.28 Ω RDS(on) at VGS = -10 V, and -9.9 A continuous drain current at TC = 25 °C. It delivers robust avalanche capability (EAS = 250 mJ), fast switching (tr = 57–66 ns), and low gate charge (Qg = 9.4–14 nC), making it suitable for DC/DC converter high-side switches and motor control H-bridge legs.
For engineers reviewing the IRFU9020PBF datasheet, IRFU9020PBF pinout, IRFU9020PBF application, or IRFU9020PBF equivalent, this page provides verified electrical parameters, validated IPAK (TO-251) terminal mapping, confirmed diode recovery performance (trr = 56–280 ns), thermal resistance (RthJC = 3.0 °C/W), and direct alternatives with documented functional and packaging differences.
Technical Context
This device operates as a voltage-controlled unidirectional switch with gate-driven turn-on/turn-off, requiring no sustained gate current. Its P-channel topology enables high-side configuration without level-shifting circuitry, and its integrated body diode supports synchronous rectification and freewheeling in buck or half-bridge topologies.
The MOSFET features dynamic dV/dt immunity (5.8 V/ns), repetitive avalanche rating (IAR = -9.9 A), and temperature-stable parameters - including VGS(th) (-2.0 to -4.0 V) and RDS(on) drift - ensuring reliable operation across -55 to +150 °C junction range under pulsed and DC conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | -50 V - Maximum reverse-blocking voltage before breakdown; defines safe operating range in high-side switch applications. |
| RDS(on) | 0.28 Ω max at VGS = -10 V - Determines conduction loss (P = I²R) at full load; enables <1.5 W dissipation at 5.7 A. |
| Qg | 14 nC max - Total gate charge required for full turn-on; directly impacts driver power and switching speed in PWM circuits. |
| tr / tf | 57–66 ns / 25–38 ns - Rise/fall times measured at VDD = -25 V, Rg = 18 Ω; sets minimum practical PWM frequency and EMI profile. |
| EAS | 250 mJ - Single-pulse avalanche energy rating; allows safe clamping of inductive kickback without external snubbers. |
| RthJC | 3.0 °C/W max - Junction-to-case thermal resistance; enables accurate heatsink sizing when mounted on copper pad per IPC-7351B. |
| VGS(th) | -2.0 to -4.0 V - Gate threshold voltage range; ensures reliable turn-on with standard -10 V logic-level drive and margin against noise-induced conduction. |
Pinout & Package
IRFU9020PBF uses the IPAK (TO-251) surface-mount package with straight leads and exposed drain tab for thermal and electrical connection. The package measures 8.89 × 6.35 × 2.39 mm (L × W × H) and requires a minimum 10.67 × 5.69 mm copper pad for optimal thermal performance per Vishay Application Note 826.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (D) | Main current-carrying terminal (connected to internal die substrate) | Exposed metal tab - must be soldered to large PCB copper area for thermal management and low-inductance return path. |
| Gate (G) | Control electrode for channel formation | High-impedance input requiring <500 nA leakage; sensitive to ESD - needs series resistor (10–100 Ω) near driver output. |
| Source (S) | Reference node for gate drive and current return | Connected to system ground or floating rail in high-side configuration; defines VGS reference point for turn-on control. |
Key Features
| Feature | Design Value |
|---|---|
| P-channel enhancement mode | Enables high-side switching without bootstrap or isolated gate drivers - simplifies power stage layout in buck converters. |
| Repetitive avalanche rated | Supports reliable operation under inductive load transients (e.g., motor commutation) without derating or external protection. |
| Low Qgd/Qgs ratio (≈1.0) | Reduces Miller effect and improves switching controllability during hard-switching transitions. |
| Peak diode recovery dV/dt = 5.8 V/ns | Ensures stable body diode commutation in synchronous rectifiers without oscillation or shoot-through risk. |
| JEDEC TO-251AA compliant | Guarantees mechanical compatibility with standard pick-and-place equipment and IPC-7351B land patterns. |
Applications
| DC/DC Buck Converter | Motor Control H-Bridge |
|---|---|
Use Scenario: High-efficiency 12 V to 5 V step-down conversion in embedded power supplies. IC Role / Device Role: High-side synchronous switch controlling power delivery to output inductor. Use Value: Low RDS(on) minimizes conduction loss; fast tr/tf enables >500 kHz operation while maintaining <10% duty-cycle resolution. | Use Scenario: Bidirectional 24 V brushed DC motor drive in industrial actuators. IC Role / Device Role: Upper-leg P-channel switch in one half-bridge leg, paired with N-channel low-side device. Use Value: Eliminates need for high-side gate driver IC; avalanche rating handles back-EMF spikes during direction reversal. |
| Hot-Swap Controller | Load Switch for Peripherals |
Use Scenario: Inrush-limited insertion of PCIe cards or USB-C PD modules into live backplanes. IC Role / Device Role: Series pass element regulating current ramp rate and blocking fault currents. Use Value: Precise VGS(th) window ensures controlled turn-on; RDS(on) tolerance supports ±10% current limiting accuracy without feedback. | Use Scenario: Power sequencing and overcurrent protection for FPGA I/O banks or sensor subsystems. IC Role / Device Role: Controlled ON/OFF switch isolating downstream circuitry from main rail. Use Value: Low gate charge enables microcontroller GPIO direct drive; body diode forward drop (VSD = -6.3 V) supports reverse-current blocking during sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar P-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRFR9020PbF | DPAK (TO-252) package; identical electrical specs but 3.0 mm taller profile and different thermal pad layout. | Requires PCB redesign for footprint and thermal pad; better suited for high-volume automated assembly with tape-and-reel. | Select when board space permits larger DPAK footprint and thermal management uses bottom-side copper rather than top-side heatsinking. |
| SiHFU9020-GE3 | Same IPAK (TO-251) package and pinout; lead-free/halogen-free construction; identical RDS(on), Qg, and avalanche ratings. | No functional change; meets RoHS 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1. | Choose for new designs requiring full environmental compliance; backward-compatible drop-in replacement for IRFU9020PBF in existing layouts. |
Compared with IRFU9020PBF, IRFR9020PbF trades package compatibility for higher assembly throughput, while SiHFU9020-GE3 maintains identical form-fit-function with enhanced material compliance - both require no schematic changes but differ in thermal interface design and regulatory documentation scope.
Availability
IRFU9020PBF is available at Aetrix Electronics and suitable for DC/DC converters, motor control H-bridges, and hot-swap controllers requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.
Supply support for IRFU9020PBF 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-performance MOSFETs, diodes, and optoelectronics with emphasis on power efficiency and reliability.
The IRFU9020PBF belongs to Vishay's legacy "IR" power MOSFET family, engineered for cost-sensitive industrial and consumer power conversion where ruggedness, ease of drive, and avalanche survivability are critical.
FAQ
What is the maximum continuous drain current for IRFU9020PBF at 100 °C case temperature?
The maximum continuous drain current for IRFU9020PBF is -6.3 A at TC = 100 °C, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limits of the IPAK (TO-251) package and must be applied when ambient or heatsink conditions prevent maintaining TC ≤ 25 °C. Designers should verify junction temperature using RthJC = 3.0 °C/W and actual power dissipation to ensure TJ stays within -55 to +150 °C range. IRFU9020PBF remains fully functional across this entire range.
Does IRFU9020PBF have a built-in body diode, and what are its key parameters?
Yes, IRFU9020PBF integrates a parasitic body diode inherent to its vertical P-channel MOSFET structure. Key parameters include continuous source-drain current IS = -9.9 A, pulsed diode forward current ISM = -40 A, forward voltage VSD = -6.3 V at IS = -9.9 A and TJ = 25 °C, and reverse recovery time trr = 56–280 ns. These values are measured under standardized conditions and define freewheeling capability in inductive switching applications. IRFU9020PBF's body diode is not optimized for ultrafast recovery but provides robust operation in typical DC/DC and motor drive use cases.
Can IRFU9020PBF be driven directly by a 3.3 V microcontroller GPIO pin?
No, IRFU9020PBF cannot be reliably driven by a 3.3 V GPIO pin because its gate threshold voltage VGS(th) ranges from -2.0 V to -4.0 V, and full enhancement requires VGS ≤ -10 V for guaranteed RDS(on) ≤ 0.28 Ω. At 3.3 V, the effective VGS would be +3.3 V (for N-channel logic) or undefined polarity mismatch - resulting in incomplete turn-on and excessive conduction loss. IRFU9020PBF requires a negative gate drive referenced to its source. A dedicated P-channel gate driver or level-shifter is necessary. IRFU9020PBF is not a logic-level MOSFET.
What is the recommended PCB pad layout for IRFU9020PBF in IPAK (TO-251) package?
Vishay recommends a minimum 10.67 mm × 5.69 mm (0.420" × 0.224") copper pad for the drain tab of IRFU9020PBF, per Application Note 826. The pad should be solid, unslotted, and connected to internal ground or power planes via ≥4 thermal vias (0.3 mm diameter, 0.8 mm pitch). Gate and source pads follow standard IPC-7351B TO-251 footprints with 0.89 mm lead spacing. Avoid soldermask-defined pads for the drain tab to maximize thermal transfer. IRFU9020PBF's thermal performance degrades significantly if the recommended pad area is reduced by more than 20%.
Is IRFU9020PBF suitable for automotive applications per AEC-Q101 qualification?
No, IRFU9020PBF is not AEC-Q101 qualified. It is manufactured and tested to industrial-grade reliability standards only. While its operating temperature range (-55 to +150 °C) overlaps with automotive requirements, it lacks the stress testing, failure analysis, and lot traceability mandated by AEC-Q101. For automotive applications, designers should select Vishay's AEC-Q101-qualified equivalents such as SQJQ902EP or SIHP32N60EF. IRFU9020PBF remains appropriate for industrial, computing, and consumer equipment where AEC certification is not required.
IRFU9020PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Package/Case:
- TO-251-3 Short Leads, IPAK, TO-251AA
- Packaging:
- Tube
- Product Status:
- Active
- FET Type:
- P-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 50 V
- Current - Continuous Drain (Id) @ 25°C:
- 9.9A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 280mOhm @ 5.7A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 14 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 490 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 42W (Tc)
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-251AA
IRFU9020PBF FAQ
1.How can I place an order for IRFU9020PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRFU9020PBF 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 IRFU9020PBF reliable?
The price and inventory of IRFU9020PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFU9020PBF is usually 5 days.
3.What payment methods are accepted for IRFU9020PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFU9020PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRFU9020PBF?
IRFU9020PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRFU9020PBF 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 IRFU9020PBF?
For technical support, including IRFU9020PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFU9020PBF requirements.
6.How does Aetrix verify that IRFU9020PBF is sourced from the original manufacturer or authorized distributors?
All IRFU9020PBF 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 IRFU9020PBF meets industry standards.
7.What is the process for return or replacement of IRFU9020PBF?
All IRFU9020PBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFU9020PBF, 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 IRFU9020PBF part is unused and in its original packaging.
Return procedure for IRFU9020PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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