MOSFETs

MOSFETs, also known as MOSFET transistors, stands for ’Metal Oxide Semiconductor Field-Effect Transistors’. MOSFETs are transistor devices which are controlled by a capacitor. The "Field-Effect" means that they are controlled by voltage. The aim of a MOSFET is to control the flow of the current passing through from the source to the drain terminals. It acts very similarly to a switch and is used for switching or amplifying electronic signals.


These semiconductor devices are ICs (integrated circuits) which are mounted onto PCBs. MOSFETs come in a range of standard package types such as DPAK, D2PAK, DFN, I2PAK, SOIC, SOT-223 and TO-220.


What are depletion and enhancement modes?


MOSFET transistors have two modes; depletion and enhancement.
Depletion MOSFETs work like a closed switch. The current passes through when no current is applied. The current flow will stop if a negative voltage is applied.
Enhancement mode MOSFETs are similar to a variable resistor and are generally more popular than the depletion mode MOSFETs. They come in n-channel or p-channel variants.


How do MOSFETs work?


The pins on a MOSFET package are the Source, Gate and Drain. When a voltage is applied between the Gate and the Source terminals, current can pass through from the Drain to the Source pins. When the voltage applied to the Gate changes, the resistance from the Drain to the Source will change too. The lower the voltage applied, the higher the resistance. As the voltage increases, the resistance from the Drain to Source will decrease.
Power MOSFETs are similar to standard MOSFETs but they are designed to handle a higher level of power.


N-Channel vs. P-Channel MOSFETs


MOSFETs are made of p-type or n-type doped silicon.


  • N-Channel MOSFETS contain additional electrons which are free to move around. They are the more popular channel type. N-Channel MOSFETs work when a positive charge is applied to the gate terminal.


  • P-Channel MOSFETS substrate contains electrons and electron holes. P-Channel MOSFETs are connected to a positive voltage. These MOSFETs turn on when the voltage supplied to the Gate terminal is lower than the Source voltage.

Where are MOSFETs used?


MOSFETs are found within many applications, such as microprocessors and other memory components. MOSFET transistors are most commonly used as a voltage-controlled switch within circuits.



Looking for MOSFET Drivers?


...
Read more Read less

Filters

Viewing 1 - 20 of 11485 products
Results per page
Description Price Channel Type Maximum Continuous Drain Current Maximum Drain Source Voltage Maximum Drain Source Resistance Maximum Gate Threshold Voltage Minimum Gate Threshold Voltage Maximum Gate Source Voltage Package Type Mounting Type Pin Count Transistor Configuration Channel Mode Maximum Power Dissipation Automotive Standard
RS Stock No. 178-0786
Mfr. Part No.IRFP9240PBF
BrandVishay
$3.47
Each (In a Tube of 25)
units
- - - - - - - - - - - - - -
RS Stock No. 541-0862
Mfr. Part No.IRFP9240PBF
BrandVishay
$4.15
Each
units
P 12 A 200 V 500 mΩ - 2V -20 V, +20 V TO-247AC Through Hole 3 Single Enhancement 150 W -
RS Stock No. 541-1736
Mfr. Part No.IRF5305PBF
BrandInfineon
$1.60
Each
units
P 31 A 55 V 60 mΩ 4V 2V -20 V, +20 V TO-220AB Through Hole 3 Single Enhancement 110 W -
RS Stock No. 919-4924
Mfr. Part No.IRF5305PBF
BrandInfineon
$1.323
Each (In a Tube of 50)
units
P 31 A 55 V 60 mΩ 4V 2V -20 V, +20 V TO-220AB Through Hole 3 Single Enhancement 110 W -
RS Stock No. 124-1400
Mfr. Part No.FQP30N06L
$1.251
Each (In a Tube of 50)
units
N 32 A 60 V 45 mΩ - 1V -20 V, +20 V TO-220 Through Hole 3 Single Enhancement 79 W -
RS Stock No. 807-5863
Mfr. Part No.FQP30N06L
$1.79
Each (In a Pack of 5)
units
N 32 A 60 V 45 mΩ - 1V -20 V, +20 V TO-220 Through Hole 3 Single Enhancement 79 W -
RS Stock No. 688-7204
Mfr. Part No.IRLB3034PBF
BrandInfineon
$3.87
Each (In a Pack of 2)
units
N 343 A 40 V 2 mΩ 2.5V 1V -20 V, +20 V TO-220AB Through Hole 3 Single Enhancement 375 W -
RS Stock No. 124-9024
Mfr. Part No.IRLB3034PBF
BrandInfineon
$3.147
Each (In a Tube of 50)
units
N 343 A 40 V 2 mΩ 2.5V 1V -20 V, +20 V TO-220AB Through Hole 3 Single Enhancement 375 W -
RS Stock No. 124-1745
Mfr. Part No.BS170
$0.127
Each (In a Bag of 1000)
units
N 500 mA 60 V 5 Ω 3V 0.8V -20 V, +20 V TO-92 Through Hole 3 Single Enhancement 830 mW -
RS Stock No. 671-5064
Mfr. Part No.FQP27P06
$2.04
Each (In a Pack of 5)
units
P 27 A 60 V 70 mΩ 4V 2V -25 V, +25 V TO-220AB Through Hole 3 Single Enhancement 120 W -
RS Stock No. 178-4752
Mfr. Part No.FQP27P06
$1.74
Each (In a Tube of 50)
units
P 27 A 60 V 70 mΩ 4V 2V -25 V, +25 V TO-220AB Through Hole 3 Single Enhancement 120 W -
RS Stock No. 671-4736
Mfr. Part No.BS170
$0.478
Each (In a Pack of 10)
units
N 500 mA 60 V 5 Ω 3V 0.8V -20 V, +20 V TO-92 Through Hole 3 Single Enhancement 830 mW -
RS Stock No. 739-0224
Mfr. Part No.2N7000TA
$0.361
Each (In a Pack of 10)
units
N 200 mA 60 V 5 Ω - 0.3V -30 V, +30 V TO-92 Through Hole 3 Single Enhancement 400 mW -
RS Stock No. 169-8553
Mfr. Part No.2N7000
$0.14
Each (On a Reel of 10000)
units
N 200 mA 60 V 5 Ω - 0.8V -20 V, +20 V TO-92 Through Hole 3 Single Enhancement 400 mW -
RS Stock No. 124-1310
Mfr. Part No.2N7000TA
$0.09
Each (On a Reel of 2000)
units
N 200 mA 60 V 5 Ω - 0.3V -30 V, +30 V TO-92 Through Hole 3 Single Enhancement 400 mW -
RS Stock No. 671-4733
Mfr. Part No.2N7000
$0.365
Each (In a Pack of 20)
units
N 200 mA 60 V 5 Ω - 0.8V -20 V, +20 V TO-92 Through Hole 3 Single Enhancement 400 mW -
RS Stock No. 903-4074
Mfr. Part No.2N7000-D26Z
$0.209
Each (In a Pack of 100)
units
N 200 mA 60 V 9 Ω - 0.8V -40 V, +40 V TO-92 Through Hole 3 Single Enhancement 400 mW -
RS Stock No. 166-1711
Mfr. Part No.FDV304P
$0.077
Each (On a Reel of 3000)
units
P 460 mA 25 V 1.1 Ω - 0.65V +8 V SOT-23 Surface Mount 3 Single Enhancement 350 mW -
RS Stock No. 354-4913
Mfr. Part No.FDV304P
$0.53
Each
units
P 460 mA 25 V 1.1 Ω - 0.65V +8 V SOT-23 Surface Mount 3 Single Enhancement 350 mW -
RS Stock No. 165-7619
Mfr. Part No.IRFI4019H-117P
BrandInfineon
$2.667
Each (In a Tube of 50)
units
N 8.7 A 150 V 95 mΩ 4.9V 3V -20 V, +20 V TO-220 Through Hole 5 Series Enhancement 18 W -
Related Products
PowerTrench® MOSFETs are optimised power switches that offer ...
Description:
PowerTrench® MOSFETs are optimised power switches that offer increase of system efficiency and power density. They combine small gate charge(Qg), small reverse recovery charge(Qrr) and soft reverse recovery body diode, which contributes to fast switching of synchronous rectification in AC/DC ...
Infineon offers a large and comprehensive portfolio of ...
Description:
Infineon offers a large and comprehensive portfolio of MOSFET devices which includes the CoolMOS, OptiMOS and StrongIRFET families. They deliver best-in-class performance to bring more efficiency, power density and cost effectiveness. Designs requiring high quality and enhanced protection features benefit ...
Automotive MOSFETs, The world's largest portfolio of AEC-Q101 ...
Description:
Automotive MOSFETs, The world's largest portfolio of AEC-Q101 qualified power MOSFETs, An in-depth understanding of automotive system requirements and focused technical capability enables Nexperia to provide power semiconductor solutions across a wide spectrum of applications. From driving a simple lamp ...
Infineon offers a large and comprehensive portfolio of ...
Description:
Infineon offers a large and comprehensive portfolio of MOSFET devices which includes the CoolMOS, OptiMOS and StrongIRFET families. They deliver best-in-class performance to bring more efficiency, power density and cost effectiveness. Designs requiring high quality and enhanced protection features benefit ...