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.


...
Read more Read less

Filters

Viewing 2881 - 2900 of 11040 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. 759-9147
Mfr. Part No.FDME1034CZT
$1.058
Each (On a Tape of 5)
units
N, P 2.6 A, 3.8 A 20 V 160 mΩ, 530 mΩ MicroFET Thin Surface Mount 6 -8 V, +8 V Enhancement - 0.4V 1.4 W Isolated 2
RS Stock No. 173-2840
Mfr. Part No.STD5NK40Z
$0.559
Each (On a Reel of 2500)
units
N 3 A 400 V 600 mΩ DPAK (TO-252) Surface Mount 3 -30 V, +30 V Enhancement 4.5V 3V 45 W Single 1
New
RS Stock No. 210-5057
Mfr. Part No.SQJQ142E-T1_GE3
BrandVishay
$1.713
Each (On a Reel of 2000)
units
N 460 A 40 V 0.001 Ω PowerPAK 8 x 8L - 4 - - 2 → 3.5V - - - 1
New
RS Stock No. 220-7363
Mfr. Part No.IAUS240N08S5N019ATMA1
BrandInfineon
$4.601
Each (On a Reel of 1800)
units
N 240 A 80 V 0.0019 O PG-HSOG Surface Mount 8 - Enhancement 3.8V - - - 2
RS Stock No. 153-0757
Mfr. Part No.PMN42XPEAX
BrandNexperia
$0.265
Each (On a Reel of 3000)
units
P -5.7 A -20 V 64 mΩ SC-74, SOT457 Surface Mount 6 12 V Enhancement -1.25V -0.75V 8330 mW Single 3
RS Stock No. 802-1068
Mfr. Part No.NTMS4916NR2G
$1.25
Each (In a Pack of 20)
units
N 11.6 A 30 V 9 mΩ SOIC Surface Mount 8 -20 V, +20 V Enhancement 2.5V - 1.3 W Single 1
RS Stock No. 171-9826
Mfr. Part No.RXH090N03GZETB
BrandROHM
$0.749
Each (In a Pack of 50)
units
N 9 A 30 V 27 mΩ SOP Surface Mount 8 ±20 V Enhancement 2.5V 1V 2 W Single 1
New
RS Stock No. 216-9647
Mfr. Part No.TSM025NB04CR
$1.337
Each (On a Reel of 2500)
units
- 644 A 40 V 2.5 mΩ PDFN56 - 8 - Enhancement 4V - - - -
RS Stock No. 205-2453
Mfr. Part No.NTMFS015N10MCLT1G
$0.594
Each (On a Reel of 1500)
units
N 54 A 100 V 12.2 mΩ DFN5 - 5 - - 3V - - - 1
RS Stock No. 165-6911
Mfr. Part No.SI3433CDV-T1-GE3
BrandVishay
$0.315
Each (On a Reel of 3000)
units
P 6 A 20 V 60 mΩ TSOP Surface Mount 6 -8 V, +8 V Enhancement - 0.4V 3.3 W Single 1
RS Stock No. 783-3084
Mfr. Part No.STW20N65M5
$4.162
Each (In a Pack of 5)
units
N 18 A 710 V 190 mΩ TO-247 Through Hole 3 -25 V, +25 V Enhancement 5V 3V 130 W Single 1
RS Stock No. 165-7260
Mfr. Part No.SI1032R-T1-GE3
BrandVishay
$0.294
Each (On a Reel of 3000)
units
N 200 mA 20 V 9 Ω SOT-416 (SC-75A) Surface Mount 3 -6 V, +6 V Enhancement - 0.4V 280 mW Single 1
RS Stock No. 896-2341
Mfr. Part No.TK34A10N1,S4X(S
BrandToshiba
$1.338
Each (In a Pack of 5)
units
N 34 A 100 V 9.5 mΩ TO-220SIS Through Hole 3 -20 V, +20 V Enhancement 4V - 35 W Single 1
RS Stock No. 171-8333
Mfr. Part No.NVTFS5C453NLWFTAG
$0.653
Each (On a Reel of 1500)
units
N 107 A 40 V 5.2 mΩ WDFN Surface Mount 8 ±20 V Enhancement 2V 1.2V 68 W Single 1
New
RS Stock No. 215-2487
Mfr. Part No.IPA80R900P7XKSA1
BrandInfineon
$1.275
Each (In a Pack of 20)
units
N 6 A 800 V 0.9 Ω TO-220 FullPAK Through Hole 3 - Enhancement 3.5V - - - 1
RS Stock No. 892-2157
Mfr. Part No.IPP086N10N3GXKSA1
BrandInfineon
$2.832
Each (In a Pack of 5)
units
N 80 A 100 V 15.4 mΩ TO-220 Through Hole 3 -20 V, +20 V Enhancement 3.5V 2V 125 W Single 1
RS Stock No. 121-9599
Mfr. Part No.DMG2307L-7
$0.14
Each (On a Reel of 3000)
units
P 2 A 30 V 134 mΩ SOT-23 Surface Mount 3 -20 V, +20 V Enhancement 3V - 1.9 W Single 1
RS Stock No. 831-2859
Mfr. Part No.IRF640NLPBF
BrandInfineon
$2.842
Each (In a Pack of 5)
units
N 18 A 200 V 150 mΩ I2PAK (TO-262) Through Hole 3 -20 V, +20 V Enhancement 4V 2V 150 W Single 1
RS Stock No. 145-4514
Mfr. Part No.FCPF7N60
$2.56
Each (In a Tube of 50)
units
N 7 A 600 V 600 mΩ TO-220F Through Hole 3 -30 V, +30 V Enhancement - 3V 31 W Single 1
RS Stock No. 541-0452
Mfr. Part No.IRF640PBF
BrandVishay
$2.51
Each (In a Tube of 50)
units
N 18 A 200 V 180 mΩ TO-220AB Through Hole 3 -20 V, +20 V Enhancement - 2V 125 W Single 1