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.



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Omschrijving Prijs Channel Type Maximum Continuous Drain Current Maximum Drain Source Voltage Maximum Drain Source Resistance Maximum Gate Threshold Voltage Minimum Gate Threshold Voltage Maximum Gate Source Voltage Package Type Mounting Type Pin Count Transistor Configuration Channel Mode Maximum Power Dissipation Automotive Standard
RS-stocknr. 829-3244
FabrikantnummerDN2540N5-G
FabrikantMicrochip
€ 1,158
Each (In a Pack of 5)
Aantal stuks
N 500 mA 400 V 25 Ω 3.5V - -20 V, +20 V TO-220 Through Hole 3 Single Depletion 15 W -
RS-stocknr. 178-4924
FabrikantnummerDN2540N5-G
FabrikantMicrochip
€ 0,949
Each (In a Tube of 50)
Aantal stuks
N 500 mA 400 V 25 Ω 3.5V - -20 V, +20 V TO-220 Through Hole 3 Single Depletion 15 W -
RS-stocknr. 144-5876
FabrikantnummerVN2410L-G
FabrikantMicrochip
€ 0,576
Each (In a Bag of 1000)
Aantal stuks
- - - - - - - TO-92 Through Hole 3 - - - -
RS-stocknr. 165-4217
FabrikantnummerVN2222LL-G
FabrikantMicrochip
€ 0,26
Each (In a Bag of 1000)
Aantal stuks
N 230 mA 60 V 7.5 Ω 2.5V - -30 V, +30 V TO-92 Through Hole 3 Single Enhancement 1 W -
RS-stocknr. 879-3274
FabrikantnummerVN2222LL-G
FabrikantMicrochip
€ 0,282
Each (In a Pack of 25)
Aantal stuks
N 230 mA 60 V 7.5 Ω 2.5V - -30 V, +30 V TO-92 Through Hole 3 Single Enhancement 1 W -
RS-stocknr. 861-0670
FabrikantnummerVN2410L-G
FabrikantMicrochip
€ 0,667
Each (In a Pack of 10)
Aantal stuks
N 190 mA 240 V 10 Ω 2V - -20 V, +20 V TO-92 Through Hole 3 Single Enhancement 1 W -
RS-stocknr. 178-5359
FabrikantnummerDN3765K4-G
FabrikantMicrochip
€ 1,819
Each (On a Reel of 2000)
Aantal stuks
N 300 mA 650 V 8 Ω 3.5V - -20 V, +20 V DPAK (TO-252) Surface Mount 3 Single Depletion 2.5 W -
RS-stocknr. 829-3360
FabrikantnummerDN3765K4-G
FabrikantMicrochip
€ 2,17
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Aantal stuks
N 300 mA 650 V 8 Ω 3.5V - -20 V, +20 V DPAK (TO-252) Surface Mount 3 Single Depletion 2.5 W -
RS-stocknr. 170-4341
FabrikantnummerDN2540N3-G
FabrikantMicrochip
€ 0,475
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Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 829-3235
FabrikantnummerDN2540N3-G
FabrikantMicrochip
€ 0,622
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N 120 mA 400 V 25 Ω 3.5V - -20 V, +20 V TO-92 Through Hole 3 Single Depletion 1 W -
RS-stocknr. 829-3320
FabrikantnummerDN2530N3-G
FabrikantMicrochip
€ 0,451
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Aantal stuks
N 175 mA 300 V 12 Ω 3.5V - -20 V, +20 V TO-92 Through Hole 3 Single Depletion 740 mW -
RS-stocknr. 170-4346
FabrikantnummerDN2530N3-G
FabrikantMicrochip
€ 0,396
Each (In a Bag of 1000)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 170-4348
FabrikantnummerDN3545N3-G
FabrikantMicrochip
€ 0,441
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Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 829-3332
FabrikantnummerDN2535N3-G
FabrikantMicrochip
€ 0,522
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Aantal stuks
N 120 mA 350 V 25 Ω 3.5V - -20 V, +20 V TO-92 Through Hole 3 Single Depletion 1 W -
RS-stocknr. 165-4218
FabrikantnummerVP2106N3-G
FabrikantMicrochip
€ 0,316
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Aantal stuks
P 250 mA 60 V 15 Ω 3.5V - -20 V, +20 V TO-92 Through Hole 3 Single Enhancement 1 W -
RS-stocknr. 829-3253
FabrikantnummerLND150N8-G
FabrikantMicrochip
€ 0,452
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N 30 mA 500 V 1 kΩ 3V - -20 V, +20 V TO-243AA Surface Mount 4 Single Depletion 1.6 W -
RS-stocknr. 170-4347
FabrikantnummerDN2535N3-G
FabrikantMicrochip
€ 0,452
Each (In a Bag of 1000)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 916-3721
Fabrikantnummer2N7008-G
FabrikantMicrochip
€ 0,362
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Aantal stuks
N 230 mA 60 V 7.5 Ω 2.5V 1V -30 V, +30 V TO-92 Through Hole 3 Single Enhancement 1 W -
RS-stocknr. 165-6450
FabrikantnummerDN3135K1-G
FabrikantMicrochip
€ 0,373
Each (In a Pack of 25)
Aantal stuks
N 72 mA 350 V 35 Ω - - -3.5 V SOT Surface Mount 3 Single Depletion 360 mW -
RS-stocknr. 912-5259
FabrikantnummerLND01K1-G
FabrikantMicrochip
€ 0,305
Each (In a Pack of 25)
Aantal stuks
N 330 mA 9 V 1.4 Ω - - -12 V, +0.6 V SOT-23 Surface Mount 5 Single Depletion 360 mW -