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 41 - 60 of 11395 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. 541-0086
Mfr. Part No.IRLZ44NPBF
BrandInfineon
R 37.84
Each
units
N 47 A 55 V 22 mΩ TO-220AB 2V Through Hole 1V 3 -16 V, +16 V Enhancement 110 W Single 1
RS stock no. 541-0014
Mfr. Part No.IRF640NPBF
BrandInfineon
R 37.77
Each
units
N 18 A 200 V 150 mΩ TO-220AB 4V Through Hole 2V 3 -20 V, +20 V Enhancement 150 W Single 1
RS stock no. 919-4817
Mfr. Part No.IRF640NPBF
BrandInfineon
R 12.691
Each (In a Tube of 50)
units
N 18 A 200 V 150 mΩ TO-220AB 4V Through Hole 2V 3 -20 V, +20 V Enhancement 150 W Single 1
RS stock no. 919-4814
Mfr. Part No.IRLZ44NPBF
BrandInfineon
R 12.537
Each (In a Tube of 50)
units
N 47 A 55 V 22 mΩ TO-220AB 2V Through Hole 1V 3 -16 V, +16 V Enhancement 110 W Single 1
RS stock no. 919-4255
Mfr. Part No.SQD40N06-14L-GE3
BrandVishay
R 10.589
Each (On a Reel of 2000)
units
N 40 A 60 V 29 mΩ DPAK (TO-252) - Surface Mount 1.5V 3 -20 V, +20 V Enhancement 75 W Single 1
RS stock no. 751-4247
Mfr. Part No.DMP2160U-7
R 0.738
Each (In a Pack of 50)
units
P 3.3 A 20 V 140 mΩ SOT-23 0.9V Surface Mount - 3 -12 V, +12 V Enhancement 1.4 W Single 1
RS stock no. 787-9484
Mfr. Part No.SQD40N06-14L_GE3
BrandVishay
R 23.296
Each (In a Pack of 5)
units
N 40 A 60 V 29 mΩ DPAK (TO-252) - Surface Mount 1.5V 3 -20 V, +20 V Enhancement 75 W Single 1
RS stock no. 122-0226
Mfr. Part No.DMP2160U-7
R 0.72
Each (On a Reel of 3000)
units
P 3.3 A 20 V 140 mΩ SOT-23 0.9V Surface Mount - 3 -12 V, +12 V Enhancement 1.4 W Single 1
RS stock no. 485-7715
Mfr. Part No.STP55NF06
R 17.13
Each (In a Pack of 5)
units
N 50 A 60 V 18 mΩ TO-220 4V Through Hole 2V 3 -20 V, +20 V Enhancement 110 W Single 1
RS stock no. 787-9222
Mfr. Part No.SI2333DDS-T1-GE3
BrandVishay
R 4.845
Each (In a Pack of 10)
units
P 6 A 12 V 19 Ω SOT-23 - Surface Mount 0.4V 3 -8 V, +8 V Enhancement 1.7 W Single 1
RS stock no. 920-8789
Mfr. Part No.STP55NF06
R 14.548
Each (In a Tube of 50)
units
N 50 A 60 V 18 mΩ TO-220 4V Through Hole 2V 3 -20 V, +20 V Enhancement 110 W Single 1
RS stock no. 919-4763
Mfr. Part No.IRF3205PBF
BrandInfineon
R 14.83
Each (In a Tube of 50)
units
N 110 A 55 V 8 mΩ TO-220AB 4V Through Hole 2V 3 -20 V, +20 V Enhancement 200 W Single 1
RS stock no. 919-4220
Mfr. Part No.SI2333DDS-T1-GE3
BrandVishay
R 2.231
Each (On a Reel of 3000)
units
P 6 A 12 V 19 Ω SOT-23 - Surface Mount 0.4V 3 -8 V, +8 V Enhancement 1.7 W Single 1
RS stock no. 124-1672
Mfr. Part No.RFP50N06
R 19.748
Each (In a Tube of 50)
units
N 50 A 60 V 22 mΩ TO-220AB - Through Hole 2V 3 -20 V, +20 V Enhancement 131 W Single 1
RS stock no. 325-7625
Mfr. Part No.RFP50N06
R 38.03
Each
units
N 50 A 60 V 22 mΩ TO-220AB - Through Hole 2V 3 -20 V, +20 V Enhancement 131 W Single 1
RS stock no. 540-9783
Mfr. Part No.IRF3205PBF
BrandInfineon
R 37.84
Each
units
N 110 A 55 V 8 mΩ TO-220AB 4V Through Hole 2V 3 -20 V, +20 V Enhancement 200 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. 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. 540-9777
Mfr. Part No.IRFZ44NPBF
BrandInfineon
R 37.77
Each
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. 485-7721
Mfr. Part No.STP55NF06L
R 22.892
Each (In a Pack of 5)
units
N 55 A 60 V 18 mΩ TO-220 - Through Hole 1V 3 -16 V, +16 V Enhancement 95 W Single 1