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. For more information about MOSFETs, please see our complete guide to MOSFETs.

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 like 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 like standard MOSFETs but they are designed to handle a higher level of power.

N-Channel vs. P-Channel MOSFETs

N-Channel MOSFETs contain additional electrons which are free to move around. They are a 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.


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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. 711-5382
Mfr. Part No.IXFK27N80Q
BrandIXYS
SGD35.97
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N 27 A 800 V 320 mΩ TO-264AA Through Hole 3 -20 V, +20 V Enhancement 4.5V - 500 W Single 1
RS Stock No. 920-0874
Mfr. Part No.IXFK27N80Q
BrandIXYS
SGD25.69
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N 27 A 800 V 320 mΩ TO-264AA Through Hole 3 -20 V, +20 V Enhancement 4.5V - 500 W Single 1
RS Stock No. 920-0969
Mfr. Part No.IXFH15N100Q3
BrandIXYS
SGD17.18
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N 15 A 1000 V 1.05 Ω TO-247 Through Hole 3 -30 V, +30 V Enhancement 6.5V - 690 W Single 1
RS Stock No. 801-1389
Mfr. Part No.IXFH15N100Q3
BrandIXYS
SGD19.24
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N 15 A 1000 V 1.05 Ω TO-247 Through Hole 3 -30 V, +30 V Enhancement 6.5V - 690 W Single 1
RS Stock No. 168-4467
Mfr. Part No.IXFN102N30P
BrandIXYS
SGD29.484
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N 86 A 300 V 33 mΩ SOT-227B Panel Mount 4 -20 V, +20 V Enhancement 5V - 570 W Single 1
RS Stock No. 168-4482
Mfr. Part No.IXFP10N80P
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SGD5.12
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N 10 A 800 V 1.1 Ω TO-220 Through Hole 3 -30 V, +30 V Enhancement 5.5V - 300 W Single 1
RS Stock No. 193-464
Mfr. Part No.IXFN102N30P
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SGD39.84
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N 86 A 300 V 33 mΩ SOT-227B Panel Mount 4 -20 V, +20 V Enhancement 5V - 570 W Single 1
RS Stock No. 194-057
Mfr. Part No.IXFP10N80P
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SGD6.98
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N 10 A 800 V 1.1 Ω TO-220 Through Hole 3 -30 V, +30 V Enhancement 5.5V - 300 W Single 1
RS Stock No. 920-0870
Mfr. Part No.IXFK48N50
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SGD27.925
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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. 711-5367
Mfr. Part No.IXFK48N50
BrandIXYS
SGD35.06
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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. 194-029
Mfr. Part No.IXFN80N50P
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SGD39.95
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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. 920-0745
Mfr. Part No.IXFN80N50P
BrandIXYS
SGD34.911
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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. 920-0757
Mfr. Part No.IXFN180N15P
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SGD29.484
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N 150 A 150 V 11 mΩ SOT-227B Panel Mount 4 -20 V, +20 V Enhancement 5V - 680 W Single 1
RS Stock No. 193-616
Mfr. Part No.IXFN140N20P
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SGD34.64
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N 115 A 200 V 18 mΩ SOT-227B Panel Mount 4 -20 V, +20 V Enhancement 5V - 680 W Single 1
RS Stock No. 194-259
Mfr. Part No.IXFN180N15P
BrandIXYS
SGD32.67
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N 150 A 150 V 11 mΩ SOT-227B Panel Mount 4 -20 V, +20 V Enhancement 5V - 680 W Single 1
RS Stock No. 920-0735
Mfr. Part No.IXFN140N20P
BrandIXYS
SGD29.484
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N 115 A 200 V 18 mΩ SOT-227B Panel Mount 4 -20 V, +20 V Enhancement 5V - 680 W Single 1
RS Stock No. 168-4494
Mfr. Part No.IXFN60N80P
BrandIXYS
SGD42.746
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N 53 A 800 V 140 mΩ SOT-227B Panel Mount 4 -30 V, +30 V Enhancement 5V - 1.04 kW Single 1
RS Stock No. 194-350
Mfr. Part No.IXFN60N80P
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SGD46.34
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N 53 A 800 V 140 mΩ SOT-227B Panel Mount 4 -30 V, +30 V Enhancement 5V - 1.04 kW Single 1
RS Stock No. 168-4731
Mfr. Part No.IXFH50N60P3
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SGD8.97
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N 50 A 600 V 145 mΩ TO-247 Through Hole 3 -30 V, +30 V Enhancement 5V - 1.04 kW Single 1
RS Stock No. 168-4698
Mfr. Part No.IXFH18N100Q3
BrandIXYS
SGD17.802
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N 18 A 1000 V 660 mΩ TO-247 Through Hole 3 -30 V, +30 V Enhancement 6.5V - 830 W Single 1