JFETs

JFETs A JFET is a four terminal device, the terminals are called gate, drain, source and body. The body terminal is always connected to the source. There are two types of JFETs an N-Channel & P-Channel.What does JFET stand for? JFET stands for junction field-effect transistorN-Channel JFET ConstructionThe name N-Channel signifies that the electrons are the majority charge carriers. To form the N-Channel an N type semiconductor is used as a base and doped with a P type semiconductor at both ends. Both these P regions are electrically linked together with an ohmic contact at the gate. Two further terminals are taken out at the opposite ends for the drain and the source.P-Channel JFET ConstructionThe name P channel signifies that the holes are the majority charge carriers. To form the P-Channel a P type semiconductor is used as a base and doped with an N type semiconductor at both ends. Both these N regions are electrically linked together with an ohmic contact at the gate. Two further terminals are taken out at the opposite ends for the drain and the source.Features and Benefits High input impedance Voltage controlled device High degree of isolation between the input and the output Less noiseWhat are they also known as? JUGFETWhat are JFET transistors used for? JFET transistors have many applications in electronics and communication. You can use them as an electronically controlled switch to control electric power to a load, and as amplifiers.What is the difference between a JFET & BJT (Bipolar Junction Transistor)? The main difference between a JFET and BJT is a field effect transistor only majority charge carrier flows while the BJT (bipolar transistor) offers both majority and minority charge carrier flows.What is doping of semiconductors? Doping is the process of including foreign impurities to intrinsic semiconductors to change their electrical properties. Trivalent atoms used to dope silicon cause an intrinsic semiconductor to become a P-Type semiconductor. Pentavalent used to dope silicon cause an intrinsic semiconductor to become an N-Type semiconductor.

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Description Price Channel Type Idss Drain-Source Cut-off Current Maximum Drain Source Voltage Maximum Gate Source Voltage Maximum Drain Gate Voltage Configuration Transistor Configuration Maximum Drain Source Resistance Mounting Type Package Type Pin Count Drain Gate On-Capacitance Source Gate On-Capacitance Dimensions
RS Stock No. 792-5164
Mfr. Part No.2SK3557-6-TB-E
€0.291
Each (In a Pack of 25)
units
N 10 → 20mA 15 V - -15V Single Single - Surface Mount CP 3 10pF 2.9pF 2.9 x 1.5 x 1.1mm
RS Stock No. 166-2319
Mfr. Part No.BSR58
€0.065
Each (On a Reel of 3000)
units
N 8 → 80mA 0.4 V -40 V 40V Single Single - Surface Mount SOT-23 3 - - 2.9 x 1.3 x 0.97mm
RS Stock No. 163-2025
Mfr. Part No.2SK932-24-TB-E
€0.129
Each (On a Reel of 3000)
units
N 14.5 → 24mA 15 V - -15V Single Single - Surface Mount CP 3 10pF 3pF 2.9 x 1.5 x 1.1mm
RS Stock No. 170-3357
Mfr. Part No.MMBFJ310LT1G
€0.108
Each (On a Reel of 3000)
units
N 24 → 60mA 25 V +25 V - Single Single - Surface Mount SOT-23 3 - - 2.9 x 1.3 x 0.94mm
RS Stock No. 484-2498
Mfr. Part No.BFR31,215
BrandNXP
€0.409
Each (In a Pack of 10)
units
N 1 → 5mA 25 V -25 V -25V Single Single - Surface Mount SOT-23 (TO-236AB) 3 - - 3 x 1.4 x 1mm
RS Stock No. 166-3093
Mfr. Part No.MMBFJ111
€0.086
Each (On a Reel of 3000)
units
N 20mA 15 V -35 V 35V Single Single 30 Ω Surface Mount SOT-23 3 28pF 28pF 2.9 x 1.3 x 1.04mm
RS Stock No. 792-5155
Mfr. Part No.2SK2394-7-TB-E
€0.118
Each (In a Pack of 25)
units
N 16 → 32mA 15 V - -15V Single Single - Surface Mount CP 3 10pF 2.9pF 2.9 x 1.5 x 1.1mm
RS Stock No. 749-8265
Mfr. Part No.DSK5J01P0L
BrandPanasonic
€0.426
Each (In a Pack of 20)
units
N 1 → 3mA - - -55V Single Single - Surface Mount SMini3 F2 B 3 - - 2 x 1.25 x 0.8mm
RS Stock No. 749-8274
Mfr. Part No.DSK9J01P0L
BrandPanasonic
€0.053
Each (In a Pack of 20)
units
N 1 → 3mA - - -55V Single Single - Surface Mount SSMini3 F3 B 3 - - 1.6 x 0.85 x 0.7mm
RS Stock No. 864-7840
Mfr. Part No.MMBFJ175LT1G
€0.298
Each (In a Pack of 25)
units
P -7 → -60mA 15 V - -25V Single Single 125 Ω Surface Mount SOT-23 3 11 pF @ 0 V 11 pF @ -10 V 3.04 x 1.4 x 1.01mm
RS Stock No. 806-4302
Mfr. Part No.MMBFJ110
€0.333
Each (In a Pack of 25)
units
N Min. 10mA 15 V -25 V 25V Single Single 18 Ω Surface Mount SOT-23 3 85pF 85pF 2.92 x 1.4 x 0.94mm
RS Stock No. 124-1385
Mfr. Part No.J112
€0.097
Each (In a Bag of 1000)
units
N min. 5mA - -35 V 35V Single Single 50 Ω Through Hole TO-92 3 28pF 28pF 5.2 x 4.19 x 5.33mm
RS Stock No. 145-4270
Mfr. Part No.MMBF4393LT1G
€0.075
Each (On a Reel of 3000)
units
N 5 → 30mA 30 V +30 V 30V Single Single 100 Ω Surface Mount SOT-23 3 14 pF @ 0 V 14 pF @ -15 V 3.04 x 1.4 x 1.01mm
RS Stock No. 122-0136
Mfr. Part No.MMBFJ310LT3G
€0.082
Each (On a Reel of 10000)
units
N 24 → 60mA 25 V - - Single Single - Surface Mount SOT-23 3 - 5pF 3.04 x 1.4 x 1.01mm
RS Stock No. 103-5701
Mfr. Part No.BFR31,215
BrandNXP
€0.176
Each (On a Reel of 3000)
units
N 1 → 5mA 25 V -25 V -25V Single Single - Surface Mount SOT-23 (TO-236AB) 3 - - 3 x 1.4 x 1mm
RS Stock No. 625-5723
Mfr. Part No.MMBF4391LT1G
€0.37
Each (In a Pack of 5)
units
N 50 → 150mA 30 V +30 V 30V Single Single 30 Ω Surface Mount SOT-23 3 - - 2.9 x 1.3 x 0.94mm
RS Stock No. 626-3308
Mfr. Part No.PMBFJ308,215
BrandNXP
€0.099
Each (In a Pack of 10)
units
N 12 → 60mA 25 V -25 V -25V Single Single 50 Ω Surface Mount SOT-23 (TO-236AB) 3 - - 3 x 1.4 x 1mm
RS Stock No. 761-3688
Mfr. Part No.MMBFJ201
€0.237
Each (In a Pack of 25)
units
N 0.3 → 1.5mA - -40 V 40V Single Single - Surface Mount SOT-23 3 - - 2.92 x 1.3 x 0.93mm
RS Stock No. 864-7846
Mfr. Part No.MMBF4393LT1G
€0.27
Each (In a Pack of 50)
units
N 5 → 30mA 30 V +30 V 30V Single Single 100 Ω Surface Mount SOT-23 3 14 pF @ 0 V 14 pF @ -15 V 3.04 x 1.4 x 1.01mm
RS Stock No. 806-4251
Mfr. Part No.MMBF4093
€0.048
Each (In a Pack of 50)
units
N min. 8mA 0.2 V -40 V 40V Single Single 80 Ω Surface Mount SOT-23 3 - - 2.92 x 1.3 x 0.93mm
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