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 61 - 80 of 11388 products
Results per page
Description Price Channel Type Maximum Continuous Drain Current Maximum Drain Source Voltage Maximum Drain Source Resistance Package Type Maximum Gate Threshold Voltage Mounting Type Minimum Gate Threshold Voltage Pin Count Maximum Gate Source Voltage Channel Mode Maximum Power Dissipation Transistor Configuration Number of Elements per Chip
RS stock no. 124-8993
Mfr. Part No.IRF4905SPBF
BrandInfineon
R 35.971
Each (In a Tube of 50)
units
P 74 A 55 V 20 mΩ D2PAK (TO-263) 4V Surface Mount 2V 3 -20 V, +20 V Enhancement 3.8 W Single 1
RS stock no. 165-7607
Mfr. Part No.IRFB3307ZPBF
BrandInfineon
R 26.343
Each (In a Tube of 50)
units
N 120 A 75 V 6 mΩ TO-220AB 4V Through Hole 2V 3 -20 V, +20 V Enhancement 230 W Single 1
RS stock no. 920-8795
Mfr. Part No.STP55NF06L
R 19.503
Each (In a Tube of 50)
units
N 55 A 60 V 18 mΩ TO-220 - Through Hole 1V 3 -16 V, +16 V Enhancement 95 W Single 1
RS stock no. 688-6914
Mfr. Part No.IRFB3307ZPBF
BrandInfineon
R 23.495
Each (In a Pack of 2)
units
N 120 A 75 V 6 mΩ TO-220AB 4V Through Hole 2V 3 -20 V, +20 V Enhancement 230 W Single 1
RS stock no. 919-4769
Mfr. Part No.IRFZ44NPBF
BrandInfineon
R 13.756
Each (In a Tube of 50)
units
N 49 A 55 V 17.5 mΩ TO-220AB 4V Through Hole 2V 3 -20 V, +20 V Enhancement 94 W Single 1
RS stock no. 543-1083
Mfr. Part No.IRF1404PBF
BrandInfineon
R 41.31
Each
units
N 202 A 40 V 4 mΩ TO-220AB 4V Through Hole 2V 3 -20 V, +20 V Enhancement 333 W Single 1
RS stock no. 124-8782
Mfr. Part No.IRF4905STRLPBF
BrandInfineon
R 16.285
Each (On a Reel of 800)
units
P 70 A 55 V 20 mΩ D2PAK (TO-263) 4V Surface Mount 2V 3 -20 V, +20 V Enhancement 170 W Single 1
RS stock no. 166-0907
Mfr. Part No.IRF7509TRPBF
BrandInfineon
R 3.406
Each (On a Reel of 4000)
units
N, P 2 A, 2.7 A 30 V 110 mΩ, 200 mΩ MSOP 1V Surface Mount 1V 8 -20 V, +20 V Enhancement 1.25 W Isolated 2
RS stock no. 166-2447
Mfr. Part No.FDS6679AZ
R 5.104
Each (On a Reel of 2500)
units
P 13 A 30 V 9 mΩ SOIC - Surface Mount 1V 8 -25 V, +25 V Enhancement 2.5 W Single 1
RS stock no. 919-4873
Mfr. Part No.IRFP150NPBF
BrandInfineon
R 20.374
Each (In a Tube of 25)
units
N 42 A 100 V 36 mΩ TO-247AC 4V Through Hole 2V 3 -20 V, +20 V Enhancement 160 W Single 1
RS stock no. 791-6025
Mfr. Part No.2N7002LT3G
R 0.754
Each (In a Pack of 200)
units
N 115 mA 60 V 7.5 Ω SOT-23 2.5V Surface Mount - 3 -20 V, +20 V Enhancement 300 mW Single 1
RS stock no. 124-9001
Mfr. Part No.IRF540ZPBF
BrandInfineon
R 12.134
Each (In a Tube of 50)
units
N 36 A 100 V 27 mΩ TO-220AB 4V Through Hole 2V 3 -20 V, +20 V Enhancement 92 W Single 1
RS stock no. 913-3831
Mfr. Part No.IRF1405PBF
BrandInfineon
R 29.219
Each (In a Tube of 50)
units
N 169 A 55 V 5 mΩ TO-220AB 4V Through Hole 2V 3 -20 V, +20 V Enhancement 330 W Single 1
RS stock no. 541-0042
Mfr. Part No.IRFP250NPBF
BrandInfineon
R 25.79
Each
units
N 30 A 200 V 75 mΩ TO-247AC 4V Through Hole 2V 3 -20 V, +20 V Enhancement 214 W Single 1
RS stock no. 911-4836
Mfr. Part No.SPP20N60C3HKSA1
BrandInfineon
R 61.904
Each (In a Tube of 50)
units
N 20.7 A 600 V 190 mΩ TO-220AB 3.9V Through Hole 2.1V 3 -20 V, +20 V Enhancement 208 W Single 1
RS stock no. 541-0856
Mfr. Part No.IRFP150NPBF
BrandInfineon
R 22.79
Each
units
N 42 A 100 V 36 mΩ TO-247AC 4V Through Hole 2V 3 -20 V, +20 V Enhancement 160 W Single 1
RS stock no. 542-9771
Mfr. Part No.IRFP260NPBF
BrandInfineon
R 36.55
Each
units
N 50 A 200 V 40 mΩ TO-247AC 4V Through Hole 2V 3 -20 V, +20 V Enhancement 300 W Single 1
RS stock no. 301-192
Mfr. Part No.IRF7509TRPBF
BrandInfineon
R 37.58
Each
units
N, P 2 A, 2.7 A 30 V 110 mΩ, 200 mΩ MSOP 1V Surface Mount 1V 8 -20 V, +20 V Enhancement 1.25 W Isolated 2
RS stock no. 688-6872
Mfr. Part No.IRF540ZPBF
BrandInfineon
R 22.895
Each (In a Pack of 2)
units
N 36 A 100 V 27 mΩ TO-220AB 4V Through Hole 2V 3 -20 V, +20 V Enhancement 92 W Single 1
RS stock no. 170-3032
Mfr. Part No.MDP1921TH
BrandMagnaChip
R 18.50
Each (In a Tube of 50)
units
N 153 A 100 V 4.5 mΩ TO-220 4V Through Hole - 3 -20 V, +20 V Enhancement 223 W Single 1