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 2581 - 2600 of 11753 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. 780-0655
Mfr. Part No.NTLJD3119CTBG
HK$3.705
Each (In a Pack of 10)
units
N, P 4.1 A, 4.6 A 20 V 120 mΩ, 200 mΩ 1V - -8 V, +8 V WDFN Surface Mount 6 Isolated Enhancement 2.3 W -
RS Stock No. 827-0525
Mfr. Part No.DMG6402LVT-7
HK$1.248
Each (In a Pack of 50)
units
N 7.5 A 30 V 42 mΩ 2V - -20 V, +20 V TSOT-26 Surface Mount 6 Single Enhancement 1.75 W -
RS Stock No. 145-9295
Mfr. Part No.IRFU2405PBF
BrandInfineon
HK$7.955
Each (In a Tube of 75)
units
N 56 A 55 V 16 mΩ 4V 2V -20 V, +20 V IPAK (TO-251) Through Hole 3 Single Enhancement 110 W -
RS Stock No. 168-6034
Mfr. Part No.IRLR3410TRLPBF
BrandInfineon
HK$3.285
Each (On a Reel of 3000)
units
N 17 A 100 V 150 mΩ 2V 1V -16 V, +16 V DPAK (TO-252) Surface Mount 3 - Enhancement 79 W -
RS Stock No. 710-3395
Mfr. Part No.SI9933CDY-T1-GE3
BrandVishay
HK$5.146
Each (In a Pack of 5)
units
P 4 A 20 V 58 mΩ - 0.6V -12 V, +12 V SOIC Surface Mount 8 Isolated Enhancement 2 W -
RS Stock No. 807-0707
Mfr. Part No.FDT459N
HK$4.987
Each (In a Pack of 10)
units
N 6.5 A 30 V 60 mΩ - 1V -20 V, +20 V SOT-223 Surface Mount 3 + Tab Single Enhancement 3 W -
RS Stock No. 826-8897
Mfr. Part No.IRF7329TRPBF
BrandInfineon
HK$7.894
Each (In a Pack of 10)
units
P 9.2 A 12 V 30 mΩ 0.9V 0.4V -8 V, +8 V SOIC Surface Mount 8 Isolated Enhancement 2 W -
RS Stock No. 163-2294
Mfr. Part No.NTD20N06T4G
HK$3.753
Each (On a Reel of 2500)
units
N 20 A 60 V 46 mΩ 4V - -20 V, +20 V D2PAK (TO-263) Surface Mount 3 Single Enhancement 60 W -
RS Stock No. 166-2654
Mfr. Part No.NDS9948
HK$4.371
Each (On a Reel of 2500)
units
P 2.3 A 60 V 500 mΩ - 1V -20 V, +20 V SOIC Surface Mount 8 Isolated Enhancement 2 W -
RS Stock No. 177-7557
Mfr. Part No.IRFR224TRPBF
BrandVishay
HK$6.241
Each (On a Reel of 2000)
units
N 3.8 A 250 V 1.1 Ω - 2V -20 V, +20 V DPAK (TO-252) Surface Mount 3 Single Enhancement 42 W -
RS Stock No. 761-0588
Mfr. Part No.STP4N150
HK$47.42
Each
units
N 4 A 1500 V 7 Ω 5V 3V -30 V, +30 V TO-220 Through Hole 3 Single Enhancement 160 W -
RS Stock No. 857-6928
Mfr. Part No.IPP60R520E6XKSA1
BrandInfineon
HK$7.075
Each (In a Tube of 500)
units
N 8.1 A 600 V 520 mΩ 3.5V 2.5V -30 V, +30 V TO-220 Through Hole 3 Single Enhancement 66 W -
RS Stock No. 165-8197
Mfr. Part No.IRF1010NSTRLPBF
BrandInfineon
HK$6.639
Each (On a Reel of 800)
units
N 85 A 55 V 11 mΩ 4V 2V -20 V, +20 V D2PAK (TO-263) Surface Mount 3 Single Enhancement 180 W -
RS Stock No. 166-1711
Mfr. Part No.FDV304P
HK$0.43
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. 301-186
Mfr. Part No.IRF7507TRPBF
BrandInfineon
HK$3.75
Each
units
N, P 1.7 A, 2.4 A 20 V 140 mΩ, 270 mΩ 0.7V 0.7V -12 V, +12 V MSOP Surface Mount 8 Isolated Enhancement 1.25 W -
RS Stock No. 178-3950
Mfr. Part No.SQD40031EL_GE3
HK$11.104
Each (In a Pack of 10)
units
P 100 A 30 V 5 mΩ 2.5V 1.5V ±20 V TO-252 Surface Mount 3 + Tab Single Enhancement 136 W -
RS Stock No. 809-8991
Mfr. Part No.C2M0080120D
BrandWolfspeed
HK$162.26
Each
units
N 31 A 1200 V 208 mΩ 3.2V 1.7V -10 V, +25 V TO-247 Through Hole 3 Single Enhancement 208 W -
RS Stock No. 772-5251
Mfr. Part No.2SJ598-AZ
HK$5.301
Each (In a Pack of 10)
units
P 30 A 60 V 190 mΩ 2.5V - -20 V, +20 V IPAK (TO-251) Through Hole 4 Single Enhancement 23 W -
RS Stock No. 907-5145
Mfr. Part No.IRFSL7434PBF
BrandInfineon
HK$18.12
Each (In a Pack of 5)
units
N 320 A 40 V 1.8 mΩ - - -20 V, +20 V I2PAK (TO-262) Through Hole 3 Single Enhancement 294 W -
RS Stock No. 121-9549
Mfr. Part No.DMP4051LK3-13
HK$1.386
Each (On a Reel of 2500)
units
P 10.5 A 40 V 85 mΩ 3V - -20 V, +20 V DPAK (TO-252) Surface Mount 3 Single Enhancement 8.9 W -
Related Products
This 18 Piece 1/2" Drive Impact Socket Set ...
Description:
This 18 Piece 1/2" Drive Impact Socket Set comes complete in professional carry case with individual labelled moulds for easy identification. Impact rated 6 point chrome molybdenum sockets18 sockets to cover almost all applications with a 1/2" impact wrenchStorage case ...
These 1/2" Drive Alloy Wheel Impact Sockets are ...
Description:
These 1/2" Drive Alloy Wheel Impact Sockets are manufactured from high grade hardened Chrome Molybdenum steel for longer life encased in protective plastic sleeve to prevent damage to alloy wheels. Chrome Molybdenum MaterialThick walls prevent breakageFor use with 1/2" impact ...
Manufactured from high grade hardened Chrome Molybdenum steel ...
Description:
Manufactured from high grade hardened Chrome Molybdenum steel these 3/4" Drive Deep Impact Sockets offer longer life and durability. Chrome Molybdenum MaterialThick walls prevent breakageFor use with 1/2" impact wrenchesPCL branded with sizes printed clearly on body of socket.
in drive heavy duty impact sockets for use ...
Description:
in drive heavy duty impact sockets for use in industrial applications. Features and BenefitsVanadium Extra forged constructionPhosphated finishFor maximum safety, use clamping springs.