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.

Looking for MOSFET Drivers?


...
Read more Read less

Filters

Viewing 1 - 20 of 90 products
Results per page
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. 900-9857
Mfr. Part No.CSD19536KTTT
$7.05
Each
units
N 272 A 100 V 2.8 mΩ D2PAK (TO-263) Surface Mount 3 -20 V, +20 V Enhancement - - 375 W Single 1
RS Stock No. 162-9739
Mfr. Part No.CSD19536KTTT
$6.777
Each (On a Reel of 50)
units
N 272 A 100 V 2.8 mΩ D2PAK (TO-263) Surface Mount 3 -20 V, +20 V Enhancement - - 375 W Single 1
RS Stock No. 900-9964
Mfr. Part No.CSD19534KCS
$2.26
Each (In a Pack of 5)
units
N 100 A 100 V 20 mΩ TO-220 Through Hole 3 -20 V, +20 V Enhancement - - 118 W Single 1
RS Stock No. 145-1334
Mfr. Part No.CSD19534KCS
$1.172
Each (In a Tube of 50)
units
N 100 A 100 V 20 mΩ TO-220 Through Hole 3 -20 V, +20 V Enhancement - - 118 W Single 1
RS Stock No. 827-4672
Mfr. Part No.CSD16301Q2
$0.587
Each (In a Pack of 10)
units
N 5 A 25 V 34 mΩ SON Surface Mount 6 -8 V, +10 V Enhancement 1.55V 0.9V 2.3 W Single 1
RS Stock No. 162-8525
Mfr. Part No.CSD16301Q2
$0.382
Each (On a Reel of 3000)
units
N 5 A 25 V 34 mΩ SON Surface Mount 6 -8 V, +10 V Enhancement 1.55V 0.9V 2.3 W Single 1
RS Stock No. 145-6334
Mfr. Part No.CSD83325LT
$0.538
Each (On a Reel of 250)
units
N 8 A 12 V 23 mΩ PICOSTAR Surface Mount 6 -10 V, +10 V Enhancement - - 2.3 W Single 1
RS Stock No. 162-9733
Mfr. Part No.CSD17570Q5BT
$2.375
Each (On a Reel of 250)
units
N 53 A 30 V 920 μΩ VSCON-CLIP Surface Mount 8 -20 V, +20 V Enhancement - - 3.2 W Single 1
RS Stock No. 908-3827
Mfr. Part No.CSD17570Q5BT
$3.408
Each (In a Pack of 5)
units
N 53 A 30 V 920 μΩ VSCON-CLIP Surface Mount 8 -20 V, +20 V Enhancement - - 3.2 W Single 1
RS Stock No. 900-9942
Mfr. Part No.CSD83325LT
$0.549
Each (In a Pack of 10)
units
N 8 A 12 V 23 mΩ PICOSTAR Surface Mount 6 -10 V, +10 V Enhancement - - 2.3 W Single 1
RS Stock No. 827-4943
Mfr. Part No.CSD87350Q5D
$3.75
Each (In a Pack of 5)
units
N 120 A 30 V 1.2 mΩ, 5 mΩ SON Surface Mount 8 +8 V Enhancement 2.1V 1V 12 W Series 2
RS Stock No. 145-6646
Mfr. Part No.CSD18537NKCS
$1.011
Each (In a Tube of 50)
units
N 54 A 60 V 18 mΩ TO-220 Through Hole 3 -20 V, +20 V Enhancement 3.5V 2.6V 79 W Single 1
RS Stock No. 827-4820
Mfr. Part No.CSD17303Q5
$2.54
Each (In a Pack of 5)
units
N 100 A 30 V 3.7 mΩ SON Surface Mount 8 -8 V, +10 V Enhancement 1.6V 0.9V 3.2 W Single 1
RS Stock No. 145-1141
Mfr. Part No.CSD25481F4T
$0.188
Each (On a Reel of 250)
units
P 2.5 A 20 V 800 mΩ PICOSTAR Surface Mount 3 - Enhancement 1.2V 0.7V 500 mW Single 1
RS Stock No. 162-8529
Mfr. Part No.CSD16327Q3
$1.298
Each (On a Reel of 2500)
units
N 60 A 25 V 6.5 mΩ SON Surface Mount 8 -8 V, +10 V Enhancement 1.4V 0.9V 3 W Single 1
RS Stock No. 145-6843
Mfr. Part No.CSD25483F4T
$0.136
Each (On a Reel of 250)
units
P 1.6 A 20 V 1.07 Ω PICOSTAR Surface Mount 3 - Enhancement 1.2V 0.7V 500 mW Single 1
RS Stock No. 827-4818
Mfr. Part No.CSD17301Q5A
$2.28
Each (In a Pack of 5)
units
N 100 A 30 V 3.7 mΩ SON Surface Mount 8 -8 V, +10 V Enhancement 1.55V 0.9V 3.2 W Single 1
RS Stock No. 827-4684
Mfr. Part No.CSD16321Q5
$2.252
Each (In a Pack of 5)
units
N 100 A 25 V 3.8 mΩ SON Surface Mount 8 -8 V, +10 V Enhancement 1.4V 0.9V 3.1 W Single 1
RS Stock No. 168-4937
Mfr. Part No.CSD17308Q3T
$0.768
Each (On a Reel of 250)
units
N 50 A 30 V 16.5 mΩ VSON-CLIP Surface Mount 8 -8 V, +10 V Enhancement 1.8V 0.9V 28 W Single 1
RS Stock No. 168-4939
Mfr. Part No.CSD18536KTTT
$6.508
Each (In a Tube of 50)
units
N 349 A 60 V 2.2 mΩ D2PAK (TO-263) Surface Mount 3 -20 V, +20 V Enhancement 2.2V 1.4V 375 W Single 1