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. 806-1757
Mfr. Part No.J112
$0.516
Each (In a Pack of 50)
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. 124-1385
Mfr. Part No.J112
$0.185
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. 166-1840
Mfr. Part No.MMBFJ201
$0.163
Each (On a Reel of 3000)
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. 761-3688
Mfr. Part No.MMBFJ201
$0.458
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. 806-1766
Mfr. Part No.J113
$0.48
Each (In a Pack of 50)
units
N Min. 2mA - -35 V 35V Single Single 100 Ω Through Hole TO-92 3 28pF 28pF 5.2 x 4.19 x 5.33mm
RS Stock No. 145-5347
Mfr. Part No.J113
$0.171
Each (In a Bag of 1000)
units
N Min. 2mA - -35 V 35V Single Single 100 Ω Through Hole TO-92 3 28pF 28pF 5.2 x 4.19 x 5.33mm
RS Stock No. 760-3126
Mfr. Part No.2SK209-Y(TE85L,F)
BrandToshiba
$0.57
Each (In a Pack of 10)
units
N 1.2 → 3.0mA 10 V -30 V -50V Single Single - Surface Mount SOT-346 (SC-59) 3 - - 2.9 x 1.5 x 1.1mm
RS Stock No. 806-1753
Mfr. Part No.J111
$0.478
Each (In a Pack of 50)
units
N Min. 20mA - -35 V 35V Single Single 30 Ω Through Hole TO-92 3 28pF 28pF 5.2 x 4.19 x 5.33mm
RS Stock No. 166-2910
Mfr. Part No.J111
$0.131
Each (In a Bag of 10000)
units
N Min. 20mA - -35 V 35V Single Single 30 Ω Through Hole TO-92 3 28pF 28pF 5.2 x 4.19 x 5.33mm
RS Stock No. 791-9403
Mfr. Part No.CPH6904-TL-E
$0.947
Each (In a Pack of 10)
units
N 20 → 40mA 25 V - -25V Dual Common Source - Surface Mount CPH 6 6pF 2.3pF 2.9 x 1.6 x 0.9mm
RS Stock No. 773-7813
Mfr. Part No.MMBFJ310LT3G
$0.587
Each (In a Pack of 10)
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. 166-0548
Mfr. Part No.PMBFJ308,215
BrandNXP
$0.163
Each (On a Reel of 3000)
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. 671-1141
Mfr. Part No.MMBFJ177
$0.492
Each (In a Pack of 5)
units
P 1.5 → 20mA - +30 V -30V Single Single 300 Ω Surface Mount SOT-23 3 - - 2.92 x 1.3 x 0.93mm
RS Stock No. 162-9314
Mfr. Part No.CPH6904-TL-E
$0.488
Each (On a Reel of 3000)
units
N 20 → 40mA 25 V - -25V Dual Common Source - Surface Mount CPH 6 6pF 2.3pF 2.9 x 1.6 x 0.9mm
RS Stock No. 166-0536
Mfr. Part No.BF513,215
BrandNXP
$0.538
Each (On a Reel of 3000)
units
N 10 → 18mA 20 V - 20V Single Single - Surface Mount SOT-23 (TO-236AB) 3 - - 3 x 1.4 x 1mm
RS Stock No. 626-3308
Mfr. Part No.PMBFJ308,215
BrandNXP
$0.312
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. 756-0350
Mfr. Part No.2SK3320-BL(TE85L,F
BrandToshiba
$1.31
Each (In a Pack of 5)
units
N 6 → 14mA 50 V -1.5 V -50V Dual Common Source - Surface Mount USV 5 13pF - 2 x 1.25 x 0.9mm
RS Stock No. 122-0136
Mfr. Part No.MMBFJ310LT3G
$0.193
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. 626-2311
Mfr. Part No.BF513,215
BrandNXP
$1.254
Each (In a Pack of 10)
units
N 10 → 18mA 20 V - 20V Single Single - Surface Mount SOT-23 (TO-236AB) 3 - - 3 x 1.4 x 1mm
RS Stock No. 760-3123
Mfr. Part No.2SK208-R(TE85L,F)
BrandToshiba
$0.609
Each (In a Pack of 10)
units
N 0.3 → 0.75mA 10 V -30 V -50V Single Single - Surface Mount SOT-346 (SC-59) 3 - - 2.9 x 1.5 x 1.1mm
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