MOSFETs
MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) are voltage-controlled switches that dominate modern power conversion, motor drive, and signal switching applications. Selection criteria include drain-source voltage (VDS), continuous drain current (ID), on-resistance (RDS(on)), gate charge (Qg), and thermal resistance. Octatronics indexes 8,900+ MOSFETs from Infineon, onsemi, Vishay Siliconix, Nexperia, Toshiba, and ROHM.
Product Series & Base Models
1,049 model families directly associated with MOSFETs. Browse the full catalog with search and filters.
Browse MOSFETs Products
| PART NUMBER | MANUFACTURER | DESCRIPTION | STOCK | QTY / ACTION |
|---|---|---|---|---|
| IRF4905STRLPBF | Infineon Technologies | MOSFET P-CH 55V 42A D2PAK [Active | RoHS Compliant]. | 29,543 | |
| 2N7002-7-F | Diodes Incorporated | MOSFET N-CH 60V 115MA SOT23-3 [SOT-23-3 | Active | RoHS Compliant]. | 4,140,000 | |
| BSS138LT1G | onsemi | N-CH MOSFET 50V 0.2A 3.5R SOT-23 T/R [Active | RoHS Compliant]. | 519,920 | |
| IPTG007N06NM5ATMA1 | Infineon Technologies | MOSFET N-CH 60V 53A/454A HSOG-8 [HSOF-8 | Active | RoHS Compliant]. | 34,200 | |
| SIRA32DP-T1-RE3 | Vishay | Trans MOSFET N-CH 25V 185A 8-Pin PowerPAK SO EP T/R | 16,430 | |
| NTD5867NLT4G | onsemi | N-Ch Power MOSFET, 60V, 20A, 39mΩ, DPAK, Logic Level | 7,500 | |
| NVS4001NT1G | onsemi | Single N-Channel Small Signal MOSFET 30V, 270mA, 1.5Ω Automotive Version of the NTS4001N, SC-70 (SOT-323) 3 LEAD, 3000-REEL | 24,844 | |
| BSS138LT3G | onsemi | N-Channel MOSFET, 50V, 200mA, 3.5R, SOT-23 | 18,230 |
Top MOSFETs Manufacturers
onsemi
onsemi MOSFETs products are available for part-number review, stock checks, and RFQ support.
28,226 productsROHM
ROHM MOSFETs products are available for part-number review, stock checks, and RFQ support.
3,980 productsVishay
Vishay MOSFETs products are available for part-number review, stock checks, and RFQ support.
9,347 products
Nexperia
Nexperia MOSFETs products are available for part-number review, stock checks, and RFQ support.
3,317 productsPanjit
Panjit MOSFETs products are available for part-number review, stock checks, and RFQ support.
687 productsMSKSemi Semiconductors
MSKSemi Semiconductors MOSFETs products are available for part-number review, stock checks, and RFQ support.
1 products
Infineon Technologies
Infineon Technologies MOSFETs products are available for part-number review, stock checks, and RFQ support.
20,310 products
NXP Semiconductors
NXP Semiconductors MOSFETs products are available for part-number review, stock checks, and RFQ support.
20,288 products
Microchip Technology
Microchip Technology MOSFETs products are available for part-number review, stock checks, and RFQ support.
67,462 products
Texas Instruments
Texas Instruments MOSFETs products are available for part-number review, stock checks, and RFQ support.
84,045 productsAbout MOSFETs
MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) are voltage-controlled semiconductor switches designed to manage high-efficiency power conversion, motor control, and load switching in modern electronic systems. By utilizing a gate voltage to control the current flowing between drain and source terminals, MOSFETs offer extremely fast switching speeds and ultra-low on-resistance (RDSon), making them far superior to bipolar transistors in high-frequency switch-mode power supplies (SMPS).
This massive subcategory indexes N-channel and P-channel MOSFETs, spanning low-voltage signal switches, logic-level drive FETs, high-current automotive power switches, and high-voltage Silicon Carbide (SiC) MOSFETs. Selection criteria focus on drain-source breakdown voltage (VDSS), continuous drain current (ID), on-resistance (RDSon, measured in milli-ohms), gate charge (Qg, which affects switching speed), and package thermal characteristics (SOT-23, DFN, TO-220, D2PAK).
On Octatronics, search and compare over 8,900 MOSFET part numbers from market leaders including Infineon Technologies, onsemi, Vishay Siliconix, Nexperia, Toshiba, and STMicroelectronics. Filter by specs, view datasheets, and submit bulk RFQs online to secure traceable volume pricing.
Related Applications
Discover industry applications that commonly use MOSFETs components.
Energy & Power
Power conversion and protection components for solar, storage, charging, and industrial power.
Motor Drives & VFDs
Inverter and drive power devices for motor drives and VFDs.
EV & Powertrain
Traction inverter, OBC, and high-voltage conversion devices.
Solar Inverters
High-efficiency power conversion devices for photovoltaic inverters.
Automotive Electronics
AEC-qualified semiconductors and interconnects for ADAS, EV powertrain, BMS, and vehicle networks.
Data Center
Power, conversion, protection, and interconnect components for AI servers and rack systems.
Body Electronics & Lighting
BCM, lighting, and comfort-module devices.
Infotainment & Cluster
Cockpit compute, display, and audio devices.
Chassis Control & Safety
Braking, steering, and stability electronics.
Architectural & Decorative Lighting
Color, dimming, and control devices.
Automotive Lighting
LED drivers and lighting-control devices.
UV & Specialty Lighting
UV and specialty LED driver devices.
LED & Lighting
LED drivers and lighting power devices.
AI Server Power
Power path from rack bus to GPU, CPU, and AI ASIC boards.
48 V Power Conversion
48 V bus conversion, 80 V / 100 V MOSFETs, and intermediate rails.
Intermediate Bus Converters
Fixed-ratio and regulated IBCs between the rack bus and POL rails.
Industrial Automation
Control, sensing, motion, and industrial networking components for factory systems.
Aerospace & Defense
High-reliability and long-lifecycle components for aerospace, defense, and UAV programs.
CNC & Precision Machining
Motion, sensing, and control devices for machine tools.
Collaborative Robots
Safe-motion and sensing devices for cobots.
Commercial & Industrial Lighting
High-power LED and control devices.
Drones & UAVs
Propulsion, sensing, and flight-control devices.
Industrial Robots
Servo, sensing, and control devices for industrial robots.
Robotics & Motion Control
Servo, encoder, and motion-control devices.
Smart Appliances
Motor, sensing, and connectivity devices.
Frequently Asked Questions
Octatronics can help source a wide range of MOSFETs from major manufacturers worldwide, including active production parts, long-lead-time items, and hard-to-find components.
Yes. You can submit a single part number or upload a BOM with multiple parts. Our team will check stock, date code, lead time, and pricing for each item.
Availability depends on the specific part number and supplier source. For important orders, buyers can request packaging photos, labels, date code information, and traceability documents.
Yes. Octatronics supports sourcing for active, end-of-life, obsolete, and hard-to-find components through our global supplier network.
Please provide the part number, manufacturer, quantity, required date code, target price, delivery country, and whether original packaging or COC is required.
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MOSFET vs IGBT: Key Differences, Applications, and How to Choose the Right Power Switch
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What Is a Field Effect Transistor? FET Types, Working Principle, Applications, and Selection Guide
A Field Effect Transistor, commonly called a FET, is a voltage-controlled semiconductor device that uses an electric field to control current flow between two terminals called the source and drain. Unlike bipolar junction transistors, which require input current at the base, FETs are controlled mainly by voltage at the gate terminal. This gives FETs high input impedance, low control power, and strong advantages in switching, amplification, power management, RF circuits, sensor interfaces, and modern integrated circuits.
How to Choose a Power MOSFET: Key Parameters, Applications, and Selection Tips
This guide explains how to choose the right power MOSFET by evaluating key parameters such as drain-source voltage, current rating, RDS(on), gate charge, thermal resistance, safe operating area, avalanche rating, and package type. It also covers common applications, selection mistakes, and practical tips for improving efficiency, reliability, and sourcing decisions.
Thermal Resistance Explained: thetaJA, thetaJC, psiJT, Power Dissipation, and Derating
Thermal resistance metrics such as thetaJA, thetaJC, and psiJT help estimate semiconductor junction temperature, but each metric has a different purpose. thetaJA is useful for standardized package comparison, thetaJC applies to controlled case or heat-sink paths, and psiJT is often used with measured package-top temperature. Buyers should review thermal data before approving power ICs, regulators, MOSFETs, and package substitutions because identical electrical ratings do not guarantee the same thermal margin.