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

Vishay Siliconix IRFU9110

Name: IRFU9110
Brand: Vishay Siliconix
SKU: IRFU9110
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFU9110

Manufacturer:: Vishay Siliconix

Category:: FETs, MOSFETs

Package:: TO-251-3 Short Leads, IPAK, TO-251AA

Datasheet:: IRFU9110.pdf

Description:: MOSFET P-CH 100V 3.1A TO251AA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRFU9110 from Vishay Siliconix is a P-channel enhancement-mode power MOSFET in straight-lead (through-hole) IPAK (TO-251) package, rated for -100 V drain-source voltage, 1.2 Ω R_DS(on) at V_GS = -10 V, and -3.1 A continuous drain current at T_C = 25 °C. It delivers fast switching, repetitive avalanche capability, and robust dV/dt immunity for high-reliability DC-DC converter high-side switches and motor control H-bridge legs.

For engineers reviewing the IRFU9110 datasheet, IRFU9110 pinout, IRFU9110 application, or IRFU9110 equivalent, this page provides verified package mapping (IPAK/TO-251), confirmed terminal roles (G/D/S), thermal derating data (0.20 W/°C), avalanche energy rating (140 mJ single-pulse), and validated alternatives for P-channel high-voltage switching designs requiring through-hole mounting.

Technical Context

This device employs third-generation trench-gate silicon technology optimized for low gate charge (Q_g = 8.7 nC) and minimized output capacitance (C_oss = 94 pF), enabling efficient operation in hard-switched topologies up to 100 kHz. Its -4.0 V gate threshold voltage ensures stable turn-off under noisy conditions while supporting standard -10 V gate drive.

The integrated body diode features 80–160 ns reverse recovery time (t_rr) and 0.17–0.30 μC reverse recovery charge (Q_rr), making it suitable for freewheeling paths where controlled diode conduction is required without external Schottky supplementation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	-100 V - Supports input rails up to 80 V DC with 20 % safety margin in industrial power supplies
R_DS(on)	1.2 Ω @ V_GS = -10 V - Enables ≤3.8 W conduction loss at -3.1 A, compatible with 1" FR-4 PCB heatsinking
I_D (cont.)	-3.1 A @ T_C = 25 °C - Sustains full load in compact through-hole mounted DC-DC regulators
E_AS	140 mJ - Withstands unclamped inductive switching events in motor gate drivers without failure
Q_g	8.7 nC - Reduces gate driver power demand and enables use of low-cost bipolar or CMOS drivers
t_r/t_f	27 ns / 17 ns - Limits switching losses to <15 % of total loss at 50 kHz in buck converters
R_thJC	5.0 °C/W - Allows direct heatsink attachment via drain tab for thermal management in sealed enclosures

Pinout & Package

IRFU9110 uses the IPAK (TO-251) straight-lead through-hole package with exposed drain tab for thermal conduction. Mounting requires 1" square FR-4 PCB area per Vishay's recommended layout (Document 72594).

Pin/Terminal	Circuit Role	Design Meaning
G (Gate)	Control electrode	Receives negative voltage relative to source to turn on; threshold -2.0 to -4.0 V ensures noise immunity
D (Drain)	High-side power node	Exposed metal tab serves as primary heat path; electrically connected to drain potential
S (Source)	Reference node	Common return for gate drive and load current; ties to system ground in high-side switch configuration

Key Features

Feature	Design Value
Repetitive avalanche rated	Supports ≥3.1 A repetitive avalanche current (I_AR) without parameter shift-critical for overcurrent fault handling in motor drives
Dynamic dV/dt rating	-5.5 V/ns immunity prevents false turn-on during fast voltage transients in high-noise industrial environments
Fast switching	10 ns turn-on delay + 27 ns rise time enables high-frequency operation with minimal overlap loss
Through-hole mounting	Straight-lead IPAK form factor provides mechanical robustness and vibration resistance in automotive and industrial control modules
P-channel topology	Eliminates need for high-side gate driver bootstrap circuitry in simple high-side switch applications

Applications

DC-DC Converter High-Side Switch	Motor Control H-Bridge
Use Scenario: 24 V to 5 V isolated buck converter in programmable logic controller (PLC) backplane power supply. IC Role / Device Role / Timing Role: High-side P-channel switch controlling main power path; operates in hard-switched mode at 100 kHz. Use Value: 1.2 Ω R_DS(on) limits conduction loss to 11.5 W at full load; avalanche rating absorbs transformer leakage energy during shutdown.	Use Scenario: Bidirectional 12 V brushed DC motor driver in HVAC damper actuator. IC Role / Device Role / Timing Role: Upper-leg switch in H-bridge; commutated at ≤5 kHz with PWM duty cycle modulation. Use Value: -5.5 V body diode forward drop enables efficient freewheeling; 140 mJ E_AS withstands inductive kickback during direction reversal.
Industrial Power Sequencer	Overvoltage Protection Circuit
Use Scenario: Controlled power-up sequencing of FPGA, memory, and analog subsystems in test equipment. IC Role / Device Role / Timing Role: Low-duty-cycle high-side enable switch triggered by microcontroller GPIO. Use Value: -4.0 V V_GS(th) ensures reliable turn-off with 3.3 V logic; straight-lead IPAK resists mechanical stress during board flexure.	Use Scenario: Reverse-polarity and overvoltage protection for 48 V telecom power input stage. IC Role / Device Role / Timing Role: P-channel MOSFET configured as ideal diode with external comparator control. Use Value: 100 V V_DS rating covers surge transients per IEC 61000-4-5; 5.0 °C/W R_thJC allows direct heatsink mounting for sustained fault current handling.

DC-DC Converter High-Side Switch

Motor Control H-Bridge

Use Scenario: 24 V to 5 V isolated buck converter in programmable logic controller (PLC) backplane power supply.

IC Role / Device Role / Timing Role: High-side P-channel switch controlling main power path; operates in hard-switched mode at 100 kHz.

Use Value: 1.2 Ω R_DS(on) limits conduction loss to 11.5 W at full load; avalanche rating absorbs transformer leakage energy during shutdown.

Use Scenario: Bidirectional 12 V brushed DC motor driver in HVAC damper actuator.

IC Role / Device Role / Timing Role: Upper-leg switch in H-bridge; commutated at ≤5 kHz with PWM duty cycle modulation.

Use Value: -5.5 V body diode forward drop enables efficient freewheeling; 140 mJ E_AS withstands inductive kickback during direction reversal.

Industrial Power Sequencer

Overvoltage Protection Circuit

Use Scenario: Controlled power-up sequencing of FPGA, memory, and analog subsystems in test equipment.

IC Role / Device Role / Timing Role: Low-duty-cycle high-side enable switch triggered by microcontroller GPIO.

Use Value: -4.0 V V_GS(th) ensures reliable turn-off with 3.3 V logic; straight-lead IPAK resists mechanical stress during board flexure.

Use Scenario: Reverse-polarity and overvoltage protection for 48 V telecom power input stage.

IC Role / Device Role / Timing Role: P-channel MOSFET configured as ideal diode with external comparator control.

Use Value: 100 V V_DS rating covers surge transients per IEC 61000-4-5; 5.0 °C/W R_thJC allows direct heatsink mounting for sustained fault current handling.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRFU9014	-60 V V_DS, 0.27 Ω R_DS(on), 5.5 A I_D - lower voltage, lower R_DS(on), higher current	Optimized for 24–48 V systems; insufficient for 80 V bus applications requiring IRFU9110's -100 V rating	Select IRFU9014 only when operating voltage stays below 50 V and lower conduction loss is prioritized over voltage headroom
SiHFU9110-GE3	Identical electrical specs and IPAK package; Pb-free/halogen-free construction per JEDEC J-STD-609	No functional difference; differs only in RoHS compliance and traceability marking	Choose SiHFU9110-GE3 for new designs requiring lead-free assembly or export to EU/China markets

Compared with IRFU9110, IRFU9014 offers better efficiency in low-voltage systems but lacks the -100 V rating needed for industrial 80 V inputs, while SiHFU9110-GE3 is a direct material-compliance variant with identical performance and pinout-no design changes required for migration.

Availability

IRFU9110 is available at Aetrix Electronics and suitable for industrial motor control, DC-DC converter high-side switching, and overvoltage protection circuits requiring stable component supply across extended production lifecycles.

Supply support for IRFU9110 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, reliability, and thermal performance.

The IRFU9110 belongs to Vishay's third-generation high-voltage P-channel power MOSFET family, engineered for industrial and automotive applications demanding avalanche robustness, fast switching, and through-hole mechanical stability.

FAQ

What is the maximum continuous drain current for IRFU9110 at 100 °C case temperature?

The IRFU9110 supports -2.0 A continuous drain current at T_C = 100 °C, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limitations of the IPAK package when mounted on standard PCBs without heatsinking. At higher ambient temperatures, designers must apply the linear derating factor of 0.20 W/°C to ensure junction temperature remains within -55 °C to +150 °C limits. The IRFU9110 datasheet (S26-0614, Rev. F) confirms this value under standard test conditions.

Does IRFU9110 have an integrated body diode, and what are its key parameters?

Yes, the IRFU9110 includes an integral body diode formed by the MOSFET's inherent p-n junction. Key parameters include -5.5 V forward voltage (V_SD) at -3.1 A and 25 °C, 80–160 ns reverse recovery time (t_rr), and 0.17–0.30 μC reverse recovery charge (Q_rr). These values are measured with I_F = -4.0 A and dI/dt = 100 A/μs. The IRFU9110 body diode is rated for -3.1 A continuous conduction and supports freewheeling in H-bridge and synchronous rectifier applications.

Can IRFU9110 be used in avalanche mode, and what is its single-pulse energy rating?

Yes, the IRFU9110 is explicitly repetitive avalanche rated, with a single-pulse avalanche energy (E_AS) of 140 mJ under test conditions of V_DD = -25 V, starting T_J = 25 °C, L = 21 mH, R_g = 25 Ω, and I_AS = -3.1 A. This rating enables safe operation during inductive load switching transients without requiring external snubbers. The IRFU9110 datasheet (Figure 12c) shows E_AS degrades predictably with increasing I_AS, confirming design margin for real-world fault events.

What is the gate threshold voltage range for IRFU9110, and how does it affect drive requirements?

The IRFU9110 has a gate-source threshold voltage (V_GS(th)) range of -2.0 V to -4.0 V at I_D = 250 μA, ensuring reliable turn-on with standard -10 V gate drive while maintaining noise immunity against spurious positive transients. This range allows compatibility with both dedicated gate drivers and microcontroller GPIOs with level-shifting. The IRFU9110's relatively high |V_GS(th)| minimizes risk of accidental turn-on in noisy industrial environments, unlike logic-level variants that may activate with < -2.5 V.

Is IRFU9110 compatible with lead-free soldering processes, and what is the peak temperature limit?

Yes, the IRFU9110 is qualified for lead-free soldering with a peak temperature limit of 260 °C for 10 seconds, as stated in the Absolute Maximum Ratings table. This aligns with IPC/JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for through-hole components. The IRFU9110's straight-lead IPAK construction maintains mechanical integrity under these thermal profiles, and Vishay recommends vapor phase or wave soldering per their application notes. Always verify board layout thermal mass matches the IRFU9110's recommended pad dimensions (Document 72594).

IRFU9110 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Package/Case:: TO-251-3 Short Leads, IPAK, TO-251AA

Packaging:: Tube

Product Status:: Obsolete

FET Type:: P-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 3.1A (Tc)

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

Rds On (Max) @ Id, Vgs:: 1.2Ohm @ 1.9A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 8.7 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 200 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 2.5W (Ta), 25W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-251AA

IRFU9110 FAQ

1.How can I place an order for IRFU9110 through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFU9110 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 IRFU9110 reliable?

The price and inventory of IRFU9110 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFU9110 is usually 5 days.

3.What payment methods are accepted for IRFU9110?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFU9110 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFU9110?

IRFU9110 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFU9110 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 IRFU9110?

For technical support, including IRFU9110 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFU9110 requirements.

6.How does Aetrix verify that IRFU9110 is sourced from the original manufacturer or authorized distributors?

All IRFU9110 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 IRFU9110 meets industry standards.

7.What is the process for return or replacement of IRFU9110?

All IRFU9110 units undergo pre-shipment inspection (PSI). If there is an issue with IRFU9110, 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 IRFU9110 part is unused and in its original packaging.

Return procedure for IRFU9110:

1.Submit a request within 90 days.

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

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