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 341 products
Results per page
Description Price Channel Type Maximum Continuous Drain Current Maximum Drain Source Voltage Maximum Drain Source Resistance Package Type Mounting Type Pin Count Maximum Gate Source Voltage Channel Mode Maximum Gate Threshold Voltage Minimum Gate Threshold Voltage Maximum Power Dissipation Transistor Configuration Number of Elements per Chip
RS Stock No. 168-4739
Mfr. Part No.IXFQ28N60P3
BrandIXYS
HK$38.512
Each (In a Tube of 30)
units
N 28 A 600 V 260 mΩ TO-3P Through Hole 3 -30 V, +30 V Enhancement 5V - 695 W Single 1
RS Stock No. 802-4451
Mfr. Part No.IXFQ28N60P3
BrandIXYS
HK$42.92
Each (In a Pack of 2)
units
N 28 A 600 V 260 mΩ TO-3P Through Hole 3 -30 V, +30 V Enhancement 5V - 695 W Single 1
RS Stock No. 168-4470
Mfr. Part No.IXFH170N10P
BrandIXYS
HK$69.103
Each (In a Tube of 30)
units
N 170 A 100 V 9 mΩ TO-247 Through Hole 3 -20 V, +20 V Enhancement 5V - 714 W Single 1
RS Stock No. 146-1782
Mfr. Part No.IXTY8N65X2
BrandIXYS
HK$16.17
Each (In a Tube of 50)
units
N 8 A 650 V 500 mΩ DPAK (TO-252) Surface Mount 3 -30 V, +30 V Enhancement 5V 3V 150 W Single 1
RS Stock No. 875-2471
Mfr. Part No.MMIX1F520N075T2
BrandIXYS
HK$151.72
Each
units
N 500 A 75 V 1.6 mΩ SMPD Surface Mount 24 -30 V, +30 V Enhancement 5V - 830 W Single 1
RS Stock No. 168-4790
Mfr. Part No.MMIX1F520N075T2
BrandIXYS
HK$137.94
Each (In a Tube of 20)
units
N 500 A 75 V 1.6 mΩ SMPD Surface Mount 24 -30 V, +30 V Enhancement 5V - 830 W Single 1
RS Stock No. 193-509
Mfr. Part No.IXFH170N10P
BrandIXYS
HK$80.29
Each
units
N 170 A 100 V 9 mΩ TO-247 Through Hole 3 -20 V, +20 V Enhancement 5V - 714 W Single 1
RS Stock No. 917-1498
Mfr. Part No.IXTY8N65X2
BrandIXYS
HK$21.91
Each (In a Pack of 5)
units
N 8 A 650 V 500 mΩ DPAK (TO-252) Surface Mount 3 -30 V, +30 V Enhancement 5V 3V 150 W Single 1
RS Stock No. 920-0987
Mfr. Part No.IXFB210N30P3
BrandIXYS
HK$153.17
Each (In a Tube of 25)
units
N 210 A 300 V 14.5 mΩ PLUS264 Through Hole 3 -20 V, +20 V Enhancement 5V - 1.89 kW Single 1
RS Stock No. 802-4357
Mfr. Part No.IXFB210N30P3
BrandIXYS
HK$180.21
Each
units
N 210 A 300 V 14.5 mΩ PLUS264 Through Hole 3 -20 V, +20 V Enhancement 5V - 1.89 kW Single 1
RS Stock No. 168-4729
Mfr. Part No.IXFH28N60P3
BrandIXYS
HK$43.21
Each (In a Tube of 30)
units
N 28 A 600 V 260 mΩ TO-247 Through Hole 3 -30 V, +30 V Enhancement 5V - 695 W Single 1
RS Stock No. 920-0745
Mfr. Part No.IXFN80N50P
BrandIXYS
HK$191.76
Each (In a Tube of 10)
units
N 66 A 500 V 65 mΩ SOT-227B Panel Mount 4 -30 V, +30 V Enhancement 5V - 700 W Single 1
RS Stock No. 875-2500
Mfr. Part No.MMIX1T550N055T2
BrandIXYS
HK$310.11
Each
units
N 550 A 55 V 1.3 mΩ SMPD Surface Mount 24 -20 V, +20 V Enhancement 3.8V - 830 W Single 1
RS Stock No. 917-1485
Mfr. Part No.IXTP4N65X2
BrandIXYS
HK$18.91
Each (In a Pack of 5)
units
N 4 A 650 V 850 mΩ TO-220 Through Hole 3 -30 V, +30 V Enhancement 5V 3V 80 W Single 1
RS Stock No. 711-5367
Mfr. Part No.IXFK48N50
BrandIXYS
HK$160.76
Each
units
N 48 A 500 V 100 mΩ TO-264AA Through Hole 3 -20 V, +20 V Enhancement 4V - 500 W Single 1
RS Stock No. 804-7593
Mfr. Part No.IXFN210N30P3
BrandIXYS
HK$295.22
Each
units
N 192 A 300 V 14.5 mΩ SOT-227B Panel Mount 4 -20 V, +20 V Enhancement 5V - 1.5 kW Single 1
RS Stock No. 917-1454
Mfr. Part No.IXTN102N65X2
BrandIXYS
HK$202.71
Each
units
N 76 A 650 V 30 mΩ SOT-227B Surface Mount 4 -30 V, +30 V Enhancement 5V 3V 595 W Single 1
RS Stock No. 146-4236
Mfr. Part No.IXFH80N65X2
BrandIXYS
HK$71.564
Each (In a Tube of 30)
units
N 80 A 650 V 38 mΩ TO-247 Through Hole 3 ±30 V Enhancement 5V 3.5V 890 W Single 1
RS Stock No. 917-1457
Mfr. Part No.IXTH12N65X2
BrandIXYS
HK$25.86
Each (In a Pack of 2)
units
N 12 A 650 V 300 mΩ TO-247 Through Hole 3 -30 V, +30 V Enhancement 4.5V 2.5V 180 W Single 1
RS Stock No. 146-1786
Mfr. Part No.IXTH12N65X2
BrandIXYS
HK$25.283
Each (In a Tube of 30)
units
N 12 A 650 V 300 mΩ TO-247 Through Hole 3 -30 V, +30 V Enhancement 4.5V 2.5V 180 W Single 1