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

Vishay Siliconix IRF9640PBF-BE3

Name: IRF9640PBF-BE3
Brand: Vishay Siliconix
SKU: IRF9640PBF-BE3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRF9640PBF-BE3

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: IRF9640PBF-BE3.pdf

Description:: MOSFET P-CH 200V 11A TO220AB

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Product details

Overview

IRF9640PBF-BE3 from Vishay Siliconix is a P-channel enhancement-mode power MOSFET in TO-220AB package, rated for -200 V V_DS, 0.50 Ω R_DS(on) at V_GS = -10 V, and -11 A continuous drain current at T_C = 25 °C. It delivers rugged repetitive avalanche capability (E_AS = 700 mJ), fast switching (t_d(off) = 39 ns), and low gate charge (Q_g = 44 nC), making it suitable for high-voltage DC-DC converters and motor control H-bridge top switches.

For engineers reviewing the IRF9640PBF-BE3 datasheet, IRF9640PBF-BE3 pinout, IRF9640PBF-BE3 application, or IRF9640PBF-BE3 equivalent, key selection criteria include verified -200 V blocking voltage, confirmed TO-220AB thermal resistance (R_thJC = 1.0 °C/W), validated body diode recovery time (t_rr = 250–300 ns), and documented gate threshold range (V_GS(th) = -2.0 to -4.0 V).

Technical Context

This device operates as a high-side switch in buck, flyback, and half-bridge topologies, leveraging its negative gate drive compatibility and robust dV/dt immunity (-5.0 V/ns). Its third-generation silicon design integrates optimized cell layout for low R_DS(on) × Q_g figure-of-merit and intrinsic avalanche ruggedness without external snubbers.

The TO-220AB package provides direct heatsink mounting with R_thCS = 0.50 °C/W and supports stable operation up to T_J = 150 °C. Dynamic parameters-including C_iss = 1200 pF, C_oss = 370 pF, and Q_gd/Q_gs ratio of ~3.8-enable predictable turn-off behavior under hard-switching conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	-200 V - Supports high-voltage DC bus designs up to 160 V with 25 % margin
R_DS(on)	0.50 Ω @ V_GS = -10 V - Enables ≤ 6.1 W conduction loss at -11 A
Q_g	44 nC - Requires ≤ 0.44 mJ gate drive energy per switch cycle at 10 V
E_AS	700 mJ - Withstands unclamped inductive energy without failure in motor drive faults
t_rr	250–300 ns - Limits reverse recovery losses in synchronous rectification
V_GS(th)	-2.0 to -4.0 V - Ensures reliable turn-on with standard -10 V gate drivers
P_D	125 W @ T_C = 25 °C - Delivers full-rated current with adequate heatsinking

Pinout & Package

IRF9640PBF-BE3 uses the industry-standard TO-220AB package with isolated tab (drain-connected), offering low thermal resistance (R_thJC = 1.0 °C/W) and mechanical compatibility with universal heatsinks.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main current path output / heat transfer surface	Electrically connected to metal tab; must be electrically isolated from heatsink unless system ground reference permits
Gate	Control terminal for channel modulation	High-impedance input requiring < ±100 nA leakage handling; sensitive to ESD
Source	Reference node for gate drive and current return	Serves as common return for load current and gate driver supply in high-side configurations

Key Features

Feature	Design Value
Repetitive avalanche rated	Supports fault-tolerant operation with I_AR = -11 A and E_AR = 13 mJ without derating
Dynamic dV/dt rating	Immune to false turn-on up to -5.0 V/ns, enabling reliable operation in noisy high-dV/dt environments
Fast switching	Combined t_d(on) + t_r + t_d(off) + t_f = 134 ns enables >1 MHz hard-switching in optimized layouts
Low Q_gd/Q_gs ratio	Ratio of 3.8 minimizes Miller-induced switching instability during high dV/dt transitions
RoHS-compliant & halogen-free	IRF9640PBF-BE3 meets JEDEC JS709C and JESD204B material requirements for green electronics

Applications

Industrial Motor Drives	High-Voltage DC-DC Converters
Use Scenario: High-side switch in 3-phase inverter half-bridge legs driving 100–200 V BLDC motors. IC Role / Device Role / Timing Role: P-channel high-side power switch controlling phase voltage sequencing and regenerative braking. Use Value: Avalanche ruggedness (E_AS = 700 mJ) prevents failure during inductive kickback from motor windings.	Use Scenario: Primary-side switch in isolated flyback or forward converter operating from 150 V DC input. IC Role / Device Role / Timing Role: Main power switch modulating transformer primary current at 50–200 kHz. Use Value: Low R_DS(on) (0.50 Ω) reduces conduction loss to ≤6.1 W at full load, improving efficiency by ≥1.2 % vs. higher-R_DS(on) alternatives.
Uninterruptible Power Supplies	AC-DC Front-End Rectification
Use Scenario: Battery disconnect switch and backup power path controller in 48–110 V UPS systems. IC Role / Device Role / Timing Role: High-reliability bidirectional blocking switch isolating battery bank during AC mains operation. Use Value: Verified -200 V V_DS rating ensures safe operation across full battery voltage range including charging transients.	Use Scenario: Synchronous rectifier in high-efficiency offline SMPS secondary side with 19 V–48 V output. IC Role / Device Role / Timing Role: Low-loss replacement for Schottky diodes in LLC resonant converters. Use Value: Body diode t_rr = 250–300 ns enables clean commutation with minimal voltage overshoot during zero-current switching.

Industrial Motor Drives

High-Voltage DC-DC Converters

Use Scenario: High-side switch in 3-phase inverter half-bridge legs driving 100–200 V BLDC motors.

IC Role / Device Role / Timing Role: P-channel high-side power switch controlling phase voltage sequencing and regenerative braking.

Use Value: Avalanche ruggedness (E_AS = 700 mJ) prevents failure during inductive kickback from motor windings.

Use Scenario: Primary-side switch in isolated flyback or forward converter operating from 150 V DC input.

IC Role / Device Role / Timing Role: Main power switch modulating transformer primary current at 50–200 kHz.

Use Value: Low R_DS(on) (0.50 Ω) reduces conduction loss to ≤6.1 W at full load, improving efficiency by ≥1.2 % vs. higher-R_DS(on) alternatives.

Uninterruptible Power Supplies

AC-DC Front-End Rectification

Use Scenario: Battery disconnect switch and backup power path controller in 48–110 V UPS systems.

IC Role / Device Role / Timing Role: High-reliability bidirectional blocking switch isolating battery bank during AC mains operation.

Use Value: Verified -200 V V_DS rating ensures safe operation across full battery voltage range including charging transients.

Use Scenario: Synchronous rectifier in high-efficiency offline SMPS secondary side with 19 V–48 V output.

IC Role / Device Role / Timing Role: Low-loss replacement for Schottky diodes in LLC resonant converters.

Use Value: Body diode t_rr = 250–300 ns enables clean commutation with minimal voltage overshoot during zero-current switching.

Equivalent & Alternatives

The following parts are listed as comparable options for similar P-channel high-voltage power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP9P20	V_DS = -200 V, R_DS(on) = 0.65 Ω @ -10 V, Q_g = 32 nC, TO-220	Lower gate charge improves switching efficiency but higher R_DS(on) increases conduction loss by ~30 %	Prefer STP9P20 where gate drive power is constrained and thermal headroom exists
IXTP12P20P	V_DS = -200 V, R_DS(on) = 0.45 Ω @ -10 V, Q_g = 52 nC, TO-220	Lower on-resistance reduces conduction loss but higher Q_g demands stronger gate driver	Choose IXTP12P20P when minimizing I²R loss is critical and gate drive capability supports 52 nC

Compared with STP9P20 and IXTP12P20P, IRF9640PBF-BE3 offers balanced trade-offs: mid-range R_DS(on) (0.50 Ω) and gate charge (44 nC) enable efficient thermal and drive design without compromising ruggedness (700 mJ E_AS), making it optimal for cost-sensitive industrial power stages requiring proven field reliability.

Availability

IRF9640PBF-BE3 is available at Aetrix Electronics and suitable for industrial motor drives, high-voltage DC-DC converters, and uninterruptible power supplies requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.

Supply support for IRF9640PBF-BE3 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 power MOSFETs, diodes, and optoelectronics with emphasis on ruggedness, efficiency, and reliability.

The IRF9640PBF-BE3 belongs to Vishay's third-generation high-voltage P-channel power MOSFET family, engineered for demanding industrial switching applications where avalanche capability, thermal stability, and consistent parametric performance are essential.

FAQ

What is the maximum junction temperature rating for IRF9640PBF-BE3?

The IRF9640PBF-BE3 has an operating junction temperature range of -55 °C to +150 °C. This rating is confirmed in the Absolute Maximum Ratings table (Document Number: 91086, Rev. D), and thermal design must ensure T_J does not exceed 150 °C under worst-case power dissipation and ambient conditions.

Is IRF9640PBF-BE3 suitable for use as a high-side switch in a 120 V DC system?

Yes, IRF9640PBF-BE3 is suitable: its -200 V V_DS rating provides 67 % voltage margin above 120 V DC, and its specified dV/dt immunity (-5.0 V/ns) and avalanche energy (700 mJ) support reliable operation during transient overvoltage and inductive switching events in such systems.

Does IRF9640PBF-BE3 have a built-in body diode, and what are its key characteristics?

Yes, IRF9640PBF-BE3 integrates a source-drain body diode. Key specs include V_SD = -5 V at I_S = -11 A and T_J = 25 °C, t_rr = 250–300 ns, and Q_rr = 2.9–3.6 μC. These values are measured under standardized conditions (I_F = -11 A, dI/dt = 100 A/μs) and support synchronous rectification and freewheeling functions.

What is the gate threshold voltage range for IRF9640PBF-BE3, and how does it affect drive design?

The gate threshold voltage V_GS(th) for IRF9640PBF-BE3 is -2.0 V to -4.0 V (min to max) at I_D = -250 μA. This range requires gate drive voltages ≤ -10 V to ensure full enhancement and low R_DS(on); logic-level drivers (< -5 V) may yield inconsistent turn-on and elevated conduction loss.

How does the TO-220AB package of IRF9640PBF-BE3 impact thermal management?

The TO-220AB package of IRF9640PBF-BE3 features R_thJC = 1.0 °C/W (max) and R_thCS = 0.50 °C/W (typ), enabling effective heat transfer to external heatsinks. Mounting torque must be 10 lbf·in (1.1 N·m) to maintain thermal interface integrity, and the isolated drain tab requires proper electrical isolation unless referenced to system ground.

IRF9640PBF-BE3 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Active

FET Type:: P-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 200 V

Current - Continuous Drain (Id) @ 25°C:: 11A (Tc)

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

Rds On (Max) @ Id, Vgs:: 500mOhm @ 6.6A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 44 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1200 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 125W (Tc)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

IRF9640PBF-BE3 FAQ

1.How can I place an order for IRF9640PBF-BE3 through Aetrix?

Please submit a Request for Quotation (RFQ) for IRF9640PBF-BE3 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 IRF9640PBF-BE3 reliable?

The price and inventory of IRF9640PBF-BE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRF9640PBF-BE3 is usually 5 days.

3.What payment methods are accepted for IRF9640PBF-BE3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRF9640PBF-BE3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRF9640PBF-BE3?

IRF9640PBF-BE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRF9640PBF-BE3 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 IRF9640PBF-BE3?

For technical support, including IRF9640PBF-BE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRF9640PBF-BE3 requirements.

6.How does Aetrix verify that IRF9640PBF-BE3 is sourced from the original manufacturer or authorized distributors?

All IRF9640PBF-BE3 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 IRF9640PBF-BE3 meets industry standards.

7.What is the process for return or replacement of IRF9640PBF-BE3?

All IRF9640PBF-BE3 units undergo pre-shipment inspection (PSI). If there is an issue with IRF9640PBF-BE3, 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 IRF9640PBF-BE3 part is unused and in its original packaging.

Return procedure for IRF9640PBF-BE3:

1.Submit a request within 90 days.

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

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