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. 202-5746
Mfr. Part No.NVHL160N120SC1
$12.151
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N 17 A 1200 V 0.16 Ω TO-247 - 4 - Enhancement 4.3V - - - 1
RS Stock No. 202-5716
Mfr. Part No.NTNS2K1P021ZTCG
$0.462
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P 127 mA 20 V 10 Ω XDFN3 - 3 - Depletion 1V - - - 1
RS Stock No. 896-7349
Mfr. Part No.IRL40S212
BrandInfineon
$5.27
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N 414 A 40 V 1.25 mΩ TO-220 Through Hole 3 -20 V, +20 V Enhancement 2.4V 1V 375 W Single 1
RS Stock No. 759-9011
Mfr. Part No.FDC3512
$1.492
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N 3 A 80 V 141 mΩ SOT-23 Surface Mount 6 -20 V, +20 V Enhancement - 2V 1.6 W Single 1
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RS Stock No. 215-9948
Mfr. Part No.SCT3120AW7TL
BrandROHM
$16.14
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N 21 A 650 V 120 mO TO-263 Surface Mount 7 - - 5.6V - - - -
RS Stock No. 180-7724
Mfr. Part No.SI8802DB-T2-E1
BrandVishay
$0.595
Each (In a Pack of 25)
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- - - - - - - - - - - - - -
RS Stock No. 919-5012
Mfr. Part No.IRFI1310NPBF
BrandInfineon
$2.222
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N 24 A 100 V 36 mΩ TO-220 Through Hole 3 -20 V, +20 V Enhancement 4V 2V 56 W Single 1
RS Stock No. 911-4827
Mfr. Part No.BSP295H6327XTSA1
BrandInfineon
$0.653
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N 1.8 A 60 V 300 mΩ SOT-223 Surface Mount 3 + Tab -20 V, +20 V Enhancement 2V 0.8V 1.8 W Single 1
RS Stock No. 168-7607
Mfr. Part No.STF24N60M2
$3.028
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N 18 A 650 V 190 mΩ TO-220FP Through Hole 3 -25 V, +25 V Enhancement 4V 2V 30 W Single 1
RS Stock No. 166-2415
Mfr. Part No.FDC602P
$0.259
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P 5.5 A 20 V 53 mΩ SOT-23 Surface Mount 6 -12 V, +12 V Enhancement - 0.6V 1.6 W Single 1
RS Stock No. 168-4728
Mfr. Part No.IXFH20N50P3
BrandIXYS
$5.405
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N 20 A 500 V 300 mΩ TO-247 Through Hole 3 -30 V, +30 V Enhancement 5V - 380 W Single 1
RS Stock No. 182-7235
Mfr. Part No.DMP1005UFDF-7
$0.657
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P 10.3 (State) A, 12.8 (Steady) A 12 V 18.5 mΩ U-DFN2020 Surface Mount 6 ±8 V Enhancement 1V 0.3V 2.1 W Single 1
RS Stock No. 145-9199
Mfr. Part No.IRFS4127PBF
BrandInfineon
$10.253
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N 72 A 200 V 22 mΩ D2PAK (TO-263) Surface Mount 3 -20 V, +20 V Enhancement 5V 3V 375 W Single 1
RS Stock No. 145-4437
Mfr. Part No.FDP12N50NZ
$2.41
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N 11.5 A 500 V 520 mΩ TO-220 Through Hole 3 -25 V, +25 V Enhancement - 3V 170 W Single 1
RS Stock No. 165-8203
Mfr. Part No.IRLZ44ZSTRLPBF
BrandInfineon
$1.05
Each (On a Reel of 800)
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N 51 A 55 V 13.5 mΩ D2PAK (TO-263) Surface Mount 3 -16 V, +16 V Enhancement 3V 1V 80 W Single 1
RS Stock No. 204-7207
Mfr. Part No.SIHG052N60EF-GE3
BrandVishay
$9.634
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N 48 A 600 V 0.052 Ω TO-247AC - 3 - Enhancement 5V - - - 1
RS Stock No. 200-6813
Mfr. Part No.SIHJ690N60E-T1-GE3
BrandVishay
$1.44
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N 3.5 A, 5.6 A 650 V 0.7 Ω PowerPAK SO-8L - 5 - Enhancement 5V - - - 1
RS Stock No. 166-2971
Mfr. Part No.RFD16N05SM9A
$0.641
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N 16 A 50 V 47 mΩ DPAK (TO-252) Surface Mount 3 -20 V, +20 V Enhancement - 2V 72 W Single 1
New
RS Stock No. 218-3071
Mfr. Part No.IPP80N06S209AKSA2
BrandInfineon
$2.225
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N 80 A 55 V 0.0091 Ω TO-220 Through Hole 3 - Enhancement 4V - - - 1
New
RS Stock No. 214-8912
Mfr. Part No.NTP7D3N15MC
$2.862
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N 101 A 150 V 0.0073 Ω TO-220 Surface Mount 3 - Enhancement 4.5V - - - 1