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. 195-2529
Mfr. Part No.NTMYS014N06CLTWG
MYR3.42
Each (In a Pack of 30)
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N 36 A 60 V 21.5 mΩ LFPAK Surface Mount 4 ±20 V Enhancement 2V 1.2V 37 W Single 1
RS Stock No. 687-5336
Mfr. Part No.STP6NK90ZFP
MYR12.875
Each (In a Pack of 2)
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N 5.8 A 900 V 2 Ω TO-220FP Through Hole 3 -30 V, +30 V Enhancement 4.5V 3V 30 W Single 1
RS Stock No. 165-8037
Mfr. Part No.IRFH5406TRPBF
BrandInfineon
MYR3.031
Each (On a Reel of 4000)
units
N 40 A 60 V 14.4 mΩ PQFN Surface Mount 8 -20 V, +20 V Enhancement - - 46 W Single 1
RS Stock No. 756-3845
Mfr. Part No.TPCC8065-H,LQ(S
BrandToshiba
MYR2.854
Each (In a Pack of 5)
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N 13 A 30 V 14.5 mΩ TSON Surface Mount 8 -20 V, +20 V Enhancement 2.3V - 18 W Single 1
RS Stock No. 178-0908
Mfr. Part No.IRLR014PBF
BrandVishay
MYR3.02
Each (In a Tube of 75)
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N 7.7 A 60 V 200 mΩ DPAK (TO-252) Surface Mount 3 -10 V, +10 V Enhancement - 1V 2.5 W Single 1
New
RS Stock No. 217-7183
Mfr. Part No.FF8MR12W2M1B11BOMA1
BrandInfineon
MYR1,145.99
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N 150 A 1200 V 0.05 Ω AG-EASY2BM-2 Panel Mount - - - 20V - - - 4
RS Stock No. 913-3865
Mfr. Part No.IRFP2907PBF
BrandInfineon
MYR17.86
Each (In a Tube of 25)
units
N 209 A 75 V 5 mΩ TO-247AC Through Hole 3 -20 V, +20 V Enhancement 4V 2V 470 W Single 1
RS Stock No. 754-5500
Mfr. Part No.IPP200N25N3GXKSA1
BrandInfineon
MYR31.09
Each
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N 64 A 250 V 20 mΩ TO-220 Through Hole 3 -20 V, +20 V Enhancement 4V 2V 300 W Single 1
RS Stock No. 133-2843
Mfr. Part No.RSM002P03T2L
BrandROHM
MYR1.35
Each (In a Pack of 50)
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P 200 mA 30 V 2.4 Ω SOT-723 Surface Mount 3 -20 V, +20 V Enhancement 2.5V 1V 150 mW Single 1
RS Stock No. 165-5700
Mfr. Part No.IPB80N06S407ATMA2
BrandInfineon
MYR3.293
Each (On a Reel of 1000)
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N 80 A 60 V 7.4 mΩ D2PAK (TO-263) Surface Mount 3 -20 V, +20 V Enhancement 4V 2V 107 W Single 1
RS Stock No. 168-7024
Mfr. Part No.STP25N80K5
MYR21.012
Each (In a Tube of 50)
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N 19.5 A 800 V 260 mΩ TO-220 Through Hole 3 -30 V, +30 V Enhancement 5V 3V 250 W Single 1
RS Stock No. 798-2924
Mfr. Part No.PSMN1R8-30PL,127
BrandNexperia
MYR9.725
Each (In a Pack of 2)
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N 100 A 30 V 1.8 mΩ TO-220AB Through Hole 3 -20 V, +20 V Enhancement 2.15V 1.3V 270 W Single 1
RS Stock No. 124-2412
Mfr. Part No.PSMN3R0-60PS,127
BrandNexperia
MYR10.852
Each (In a Tube of 50)
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N 100 A 60 V 3 mΩ TO-220AB Through Hole 3 -20 V, +20 V Enhancement 4V 2V 306 W Single 1
RS Stock No. 178-4625
Mfr. Part No.NVMFS5C456NT1G
MYR3.274
Each (In a Pack of 10)
units
N 80 A 40 V 4.5 mΩ DFN Surface Mount 5 ±20 V Enhancement 3.5V 2.5V 55 W Single 1
RS Stock No. 130-0906
Mfr. Part No.IPD80R1K4P7ATMA1
BrandInfineon
MYR3.80
Each (In a Pack of 5)
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N 4 A 800 V 1.4 Ω DPAK (TO-252) Surface Mount 3 -30 V, +30 V Enhancement 3.5V 2.5V 32 W - 1
RS Stock No. 172-3392
Mfr. Part No.FFSP2065A
MYR21.20
Each (In a Tube of 800)
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- - - - TO-220 Through Hole 2 + Tab - - - - 187 W Single 1
RS Stock No. 166-2945
Mfr. Part No.FDG6318P
MYR1.304
Each (On a Reel of 3000)
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P 500 mA 20 V 1.2 Ω SOT-363 (SC-70) Surface Mount 6 -12 V, +12 V Enhancement - 0.65V 300 mW Isolated 2
RS Stock No. 165-8670
Mfr. Part No.2N7002VC-7
MYR0.424
Each (On a Reel of 3000)
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N 280 mA 60 V 13.5 Ω SOT-563 Surface Mount 6 -40 V, +40 V Enhancement 2.5V - 150 mW Isolated 2
RS Stock No. 124-1413
Mfr. Part No.FQD3P50TM
MYR2.289
Each (On a Reel of 2500)
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P 1.33 A 500 V 4.9 Ω DPAK (TO-252) Surface Mount 3 -30 V, +30 V Enhancement - 3V 50 W Single 1
RS Stock No. 165-6880
Mfr. Part No.BSC035N04LSGATMA1
BrandInfineon
MYR2.127
Each (On a Reel of 5000)
units
N 100 A 40 V 5.3 mΩ TDSON Surface Mount 8 -20 V, +20 V Enhancement 2V 1.2V 69 W Single 1