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 Maximum Gate Threshold Voltage Mounting Type Minimum Gate Threshold Voltage Pin Count Maximum Gate Source Voltage Channel Mode Maximum Power Dissipation Transistor Configuration Number of Elements per Chip
RS Stock No. 124-1310
Mfr. Part No.2N7000TA
Brandonsemi
kr 0,783
Each (On a Reel of 2000)
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N 200 mA 60 V 5 Ω TO-92 - Through Hole 0.3V 3 -30 V, +30 V Enhancement 400 mW Single 1
RS Stock No. 739-0224
Mfr. Part No.2N7000TA
Brandonsemi
kr 2,881
Each (In a Pack of 10)
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N 200 mA 60 V 5 Ω TO-92 - Through Hole 0.3V 3 -30 V, +30 V Enhancement 400 mW Single 1
RS Stock No. 671-4733
Mfr. Part No.2N7000
Brandonsemi
kr 2,778
Each (In a Pack of 20)
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N 200 mA 60 V 5 Ω TO-92 - Through Hole 0.8V 3 -20 V, +20 V Enhancement 400 mW Single 1
RS Stock No. 169-8553
Mfr. Part No.2N7000
Brandonsemi
kr 1,049
Each (On a Reel of 10000)
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N 200 mA 60 V 5 Ω TO-92 - Through Hole 0.8V 3 -20 V, +20 V Enhancement 400 mW Single 1
RS Stock No. 903-4074
Mfr. Part No.2N7000-D26Z
Brandonsemi
kr 2,177
Each (In a Pack of 100)
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N 200 mA 60 V 9 Ω TO-92 - Through Hole 0.8V 3 -40 V, +40 V Enhancement 400 mW Single 1
RS Stock No. 541-1247
Mfr. Part No.IRLZ34NPBF
BrandInfineon
kr 14,24
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N 30 A 55 V 35 mΩ TO-220AB 2V Through Hole 1V 3 -16 V, +16 V Enhancement 68 W Single 1
RS Stock No. 919-4898
Mfr. Part No.IRLZ34NPBF
BrandInfineon
kr 12,185
Each (In a Tube of 50)
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N 30 A 55 V 35 mΩ TO-220AB 2V Through Hole 1V 3 -16 V, +16 V Enhancement 68 W Single 1
RS Stock No. 920-6692
Mfr. Part No.STW45NM50
kr 105,793
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N 45 A 500 V 100 mΩ TO-247 5V Through Hole 3V 3 -30 V, +30 V Enhancement 417 W Single 1
RS Stock No. 419-2440
Mfr. Part No.STW45NM50
kr 122,63
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N 45 A 500 V 100 mΩ TO-247 5V Through Hole 3V 3 -30 V, +30 V Enhancement 417 W Single 1
RS Stock No. 121-9548
Mfr. Part No.DMP3098L-7
kr 1,049
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P 3.8 A 30 V 120 mΩ SOT-23 2.1V Surface Mount - 3 -20 V, +20 V Enhancement 1.08 W Single 1
RS Stock No. 751-4266
Mfr. Part No.DMP3098L-7
kr 3,812
Each (In a Pack of 50)
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P 3.8 A 30 V 120 mΩ SOT-23 2.1V Surface Mount - 3 -20 V, +20 V Enhancement 1.08 W Single 1
RS Stock No. 822-2605
Mfr. Part No.DMP1045U-7
kr 3,572
Each (In a Pack of 50)
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P 5.2 A 12 V 75 mΩ SOT-23 1V Surface Mount - 3 -8 V, +8 V Enhancement 1.3 W Single 1
RS Stock No. 145-5875
Mfr. Part No.C2M0040120D
BrandWolfspeed
kr 343,225
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N 60 A 1200 V 52 mΩ TO-247 4V Through Hole 2V 3 -5 V, +20 V Enhancement 330 W Single 1
RS Stock No. 124-1400
Mfr. Part No.FQP30N06L
Brandonsemi
kr 12,306
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N 32 A 60 V 45 mΩ TO-220 - Through Hole 1V 3 -20 V, +20 V Enhancement 79 W Single 1
RS Stock No. 807-5863
Mfr. Part No.FQP30N06L
Brandonsemi
kr 15,002
Each (In a Pack of 5)
Units
N 32 A 60 V 45 mΩ TO-220 - Through Hole 1V 3 -20 V, +20 V Enhancement 79 W Single 1
RS Stock No. 178-7485
Mfr. Part No.BSC028N06NSATMA1
BrandInfineon
kr 13,022
Each (On a Reel of 5000)
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N 100 A 60 V 4.2 mΩ TDSON - Surface Mount - 8 -20 V, +20 V Enhancement 83 W Single 1
RS Stock No. 923-0711
Mfr. Part No.C2M0040120D
BrandWolfspeed
kr 427,46
Each
Units
N 60 A 1200 V 52 mΩ TO-247 4V Through Hole 2V 3 -5 V, +20 V Enhancement 330 W Single 1
RS Stock No. 121-9600
Mfr. Part No.DMP1045U-7
kr 0,996
Each (On a Reel of 3000)
Units
P 5.2 A 12 V 75 mΩ SOT-23 1V Surface Mount - 3 -8 V, +8 V Enhancement 1.3 W Single 1
RS Stock No. 906-4296
Mfr. Part No.BSC028N06NSATMA1
BrandInfineon
kr 24,026
Each (In a Pack of 10)
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N 100 A 60 V 4.2 mΩ TDSON - Surface Mount - 8 -20 V, +20 V Enhancement 83 W Single 1
RS Stock No. 540-9799
Mfr. Part No.IRF4905PBF
BrandInfineon
kr 23,48
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P 74 A 55 V 20 mΩ TO-220AB 4V Through Hole 2V 3 -20 V, +20 V Enhancement 200 W Single 1