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.

...
Read more Read less

Filters

Viewing 41 - 60 of 91 products
Results per page
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. 626-3314
Mfr. Part No.PMBFJ309,215
BrandNXP
£0.267
Each (In a Pack of 10)
Units
N 12 → 30mA 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. 166-0535
Mfr. Part No.BF510,215
BrandNXP
£0.143
Each (On a Reel of 3000)
Units
N 0.7 → 3.0mA 20 V - 20V Single Single - Surface Mount SOT-23 (TO-236AB) 3 - - 3 x 1.4 x 1mm
RS Stock No. 761-3684
Mfr. Part No.MMBFJ112
£0.228
Each (In a Pack of 25)
Units
N min. 5mA - -35 V 35V Single Single 50 Ω Surface Mount SOT-23 3 28pF 28pF 2.92 x 1.3 x 0.93mm
RS Stock No. 145-4162
Mfr. Part No.2SK3666-3-TB-E
£0.06
Each (On a Reel of 3000)
Units
N 1.2 → 3mA 30 V - -30V Single Single 200 Ω Surface Mount CP 3 4pF 1.1pF 2.9 x 1.5 x 1.1mm
RS Stock No. 792-5161
Mfr. Part No.2SK3666-3-TB-E
£0.227
Each (In a Pack of 50)
Units
N 1.2 → 3mA 30 V - -30V Single Single 200 Ω Surface Mount CP 3 4pF 1.1pF 2.9 x 1.5 x 1.1mm
RS Stock No. 792-5164
Mfr. Part No.2SK3557-6-TB-E
£0.234
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. 163-2020
Mfr. Part No.2SK3557-6-TB-E
£0.095
Each (On a Reel of 3000)
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. 145-4270
Mfr. Part No.MMBF4393LT1G
£0.07
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. 145-5553
Mfr. Part No.MMBFJ112
£0.072
Each (On a Reel of 3000)
Units
N min. 5mA - -35 V 35V Single Single 50 Ω Surface Mount SOT-23 3 28pF 28pF 2.92 x 1.3 x 0.93mm
RS Stock No. 864-7846
Mfr. Part No.MMBF4393LT1G
£0.219
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. 806-4257
Mfr. Part No.MMBF4092
£0.127
Each (In a Pack of 50)
Units
N min. 15mA 0.2 V -40 V 40V Single Single 50 Ω Surface Mount SOT-23 3 - - 2.92 x 1.3 x 0.93mm
RS Stock No. 166-3080
Mfr. Part No.MMBF4092
£0.098
Each (On a Reel of 3000)
Units
N min. 15mA 0.2 V -40 V 40V Single Single 50 Ω Surface Mount SOT-23 3 - - 2.92 x 1.3 x 0.93mm
RS Stock No. 625-5723
Mfr. Part No.MMBF4391LT1G
£0.322
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. 163-2337
Mfr. Part No.MMBF4391LT1G
£0.07
Each (On a Reel of 3000)
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. 166-2224
Mfr. Part No.MMBFJ270
£0.093
Each (On a Reel of 3000)
Units
P -2 → -15mA 15 V +30 V -30V Single Single - Surface Mount SOT-23 3 - - 2.9 x 1.3 x 1.04mm
RS Stock No. 166-0547
Mfr. Part No.PMBF4391,215
BrandNXP
£0.086
Each (On a Reel of 3000)
Units
N 50 → 150mA 40 V -40 V 40V Single Single 30 Ω Surface Mount SOT-23 3 - - 3 x 1.4 x 1mm
RS Stock No. 806-4318
Mfr. Part No.MMBFJ270
£0.267
Each (In a Pack of 50)
Units
P -2 → -15mA 15 V +30 V -30V Single Single - Surface Mount SOT-23 3 - - 2.9 x 1.3 x 1.04mm
RS Stock No. 163-0320
Mfr. Part No.TF414T5G
£0.061
Each (On a Reel of 8000)
Units
N 0.05 → 0.13mA 40 V - -40V Single Single - Surface Mount SOT-883 3 0.7pF 0.3pF 1.07 x 0.67 x 0.41mm
RS Stock No. 749-8268
Mfr. Part No.DSK5J01R0L
BrandPanasonic
£0.019
Each (In a Pack of 20)
Units
N 5 → 12mA - - -55V Single Single - Surface Mount SMini3 F2 B 3 - - 2 x 1.25 x 0.8mm
RS Stock No. 920-9928
Mfr. Part No.TF414T5G
£0.195
Each (In a Pack of 50)
Units
N 0.05 → 0.13mA 40 V - -40V Single Single - Surface Mount SOT-883 3 0.7pF 0.3pF 1.07 x 0.67 x 0.41mm
Related Products
A range of JFET (junction field-effect transistor) and ...
Description:
A range of JFET (junction field-effect transistor) and HEMT/HFET (high-electron-mobility transistor/ hetero-junction FET) discrete semiconductor devices. N-channel JFET, ON Semiconductor. JFET Transistors.
A range of JFET (junction field-effect transistor) and ...
Description:
A range of JFET (junction field-effect transistor) and HEMT/HFET (high-electron-mobility transistor/ hetero-junction FET) discrete semiconductor devices. N-channel JFET, NXP. JFET Transistors.
A range of JFET (junction field-effect transistor) and ...
Description:
A range of JFET (junction field-effect transistor) and HEMT/HFET (high-electron-mobility transistor/ hetero-junction FET) discrete semiconductor devices. N-channel JFET, Fairchild Semiconductor. JFET Transistors.
A range of JFET (junction field-effect transistor) and ...
Description:
A range of JFET (junction field-effect transistor) and HEMT/HFET (high-electron-mobility transistor/ hetero-junction FET) discrete semiconductor devices. P-channel JFET, Fairchild Semiconductor. JFET Transistors.