SOT3 Junction Field-Effect Transistors (JFET)
Description
SOT3 Junction Field-Effect Transistors (JFETs) are semiconductor devices that function as voltage-controlled resistors. They are used to control the flow of electrical current by varying the voltage applied to the gate terminal, which in turn modulates the conductivity of the channel between the source and drain terminals.
Working Principle
JFETs operate by utilizing a voltage applied to the gate terminal to control the current flow between the source and drain terminals. The gate-source voltage (VGS) influences the size of the depletion region within the transistor, which affects the channel's conductivity. When VGS is zero, increasing the drain-source voltage (VDS) causes the depletion region to expand, eventually pinching off the channel and limiting current flow. This voltage-controlled operation makes JFETs useful for applications requiring high input impedance and low noise, as they can effectively function as voltage-controlled resistors.
Applications
JFETs are commonly used in applications such as amplifiers, where their high input impedance and low noise characteristics are advantageous. They are also employed in switching devices and impedance matching networks. Specific examples include their use in low noise operational amplifiers and multiplexers, where their ability to handle high-impedance signals is particularly beneficial.
Advantages over other Junction Field-Effect Transistors (JFET)
One of the key advantages of JFETs over other types of transistors, such as MOSFETs, is their compatibility with existing bipolar semiconductor processes, which can simplify fabrication. Additionally, JFETs have extremely low input current due to their reverse-biased diode junction, which can be advantageous in high-impedance applications.
Limitations
JFETs have limitations, including variability in their parameters, which can make them more challenging to use compared to other transistor types. They also have lower transconductance and voltage gain compared to bipolar junction transistors (BJTs), which can limit their performance in certain applications.
Considerations
When considering the use of JFETs, it is important to evaluate factors such as initial costs, operating expenses, and durability. JFETs generally offer good durability and low maintenance costs due to their solid-state nature. However, their accuracy can be affected by parameter variability, which may necessitate additional calibration or compensation in sensitive applications. Replacement and maintenance costs are typically low, but the initial cost may vary depending on the specific type and application requirements.
from Win Source Electronics
Win Source Part Number: 1024149-J300_D26Z. Category: Discrete Semiconductor Products >Transistors - FETs, MOSFETs - RF. Package: Tape & Reel (TR). Standard Package: 2,000. Voltage - Rated: 25 V. Transistor Type: N-Channel JFET. Package / Case: TO-226-3, TO-92-3 (TO-226AA) Formed Leads. [See More]
- Package Type: TO-92; SOT3
- Polarity: N-Channel
from Win Source Electronics
Win Source Part Number: 1036413-2N5952. Category: Discrete Semiconductor Products >Transistors - FETs, MOSFETs - RF. Package: Bulk. Standard Package: 2,000. Voltage - Rated: 30 V. Frequency: 1kHz. Transistor Type: N-Channel JFET. Voltage - Test: 15 V. Noise Figure: 2dB. Package / Case: TO-226-3,... [See More]
- Package Type: TO-92; SOT3
- Polarity: N-Channel
from Win Source Electronics
Win Source Part Number: 1079378-MMBFJ212. Category: Discrete Semiconductor Products >Transistors - FETs, MOSFETs - RF. Package: Tape & Reel (TR). Standard Package: 3,000. Voltage - Rated: 25 V. Transistor Type: N-Channel JFET. Package / Case: TO-236-3, SC-59, SOT-23-3. Supplier Device... [See More]
- Package Type: SOT3; SOT23
- Polarity: N-Channel
from Win Source Electronics
Win Source Part Number: 1380722-2N4340. Category: Discrete Semiconductor Products >Transistors >FETs, MOSFETs >RF FETs, MOSFETs. Package: Bulk. Voltage - Rated: 50 V. Technology: JFET. Frequency: 1kHz. Configuration: N-Channel. Voltage - Test: 15 V. Noise Figure: 1dB. Mounting Type: Through... [See More]
- Package Type: SOT3
- Polarity: N-Channel
from Win Source Electronics
Win Source Part Number: 1008379-2N5116-E3. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Tube. Standard Package: 200. Mounting Type: Through Hole. Package / Case: TO-206AA, TO-18-3 Metal Can. Supplier Device Package: TO-206AA (TO-18). ECCN: EAR99. Fake Threat In the... [See More]
- Package Type: SOT3
from Win Source Electronics
Win Source Part Number: 1037502-2SJ03640QL. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Tape & Reel. Standard Package: 3,000. Mounting: SMD (SMT). FET Type: P-Channel. Power - Max: 150 mW. Current - Drain (Idss) @ Vds (Vgs=0): 600 µA @ 10 V. Current Drain... [See More]
- Package Type: SOT3
- VGS(off): 1.5
- Polarity: P-Channel
- rDS(on): 300
from Win Source Electronics
Win Source Part Number: 1037763-2SK3372GUL. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Tape & Reel. Standard Package: 10,000. Mounting: SMD (SMT). FET Type: N-Channel. Drain to Source Voltage (Vdss): 20 V. Power - Max: 100 mW. Current - Drain (Idss) @ Vds... [See More]
- Package Type: SOT3
- TJ: -20 to 80
- Polarity: N-Channel
from Win Source Electronics
Win Source Part Number: 1037858-2SK715W-AC. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Tape & Reel (TR). Standard Package: 2,500. FET Type: N-Channel. Drain to Source Voltage (Vdss): 15 V. Power - Max: 300 mW. Current - Drain (Idss) @ Vds (Vgs=0): 14.5 mA @ 5 V. [See More]
- Package Type: SOT3
- VGS(off): 0.6000
- Polarity: N-Channel
- TJ: 125
from Win Source Electronics
Win Source Part Number: 1066292-J113-D74Z. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Cut Tape (CT),Tape & Box (TB). Standard Package: 2,000. FET Type: N-Channel. Power - Max: 625 mW. Voltage - Breakdown (V(BR)GSS): 35 V. Current - Drain (Idss) @ Vds (Vgs=0): 2... [See More]
- Package Type: TO-92; SOT3
- VGS(off): 0.5000
- Polarity: N-Channel
- rDS(on): 100
from Win Source Electronics
Win Source Part Number: 1082821-NSVJ3557SA3T1G. Category: Discrete Semiconductor Products >Transistors - JFETs. Series: Automotive, AEC-Q101. Package: Tape & Reel. Standard Package: 3,000. Mounting: SMD (SMT). FET Type: N-Channel. Drain to Source Voltage (Vdss): 15 V. Power - Max: 200 mW. [See More]
- Package Type: SOT3
- VGS(off): 0.3000
- Polarity: N-Channel
- TJ: -55 to 150
from Win Source Electronics
Win Source Part Number: 1099109-TF202THC-3-TL-H. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Tape & Reel (TR). Standard Package: 8,000. Mounting: SMD (SMT). FET Type: N-Channel. Power - Max: 100 mW. Current - Drain (Idss) @ Vds (Vgs=0): 140 µA @ 5 V. Current... [See More]
- Package Type: SOT3
- VGS(off): 0.2000
- Polarity: N-Channel
from Win Source Electronics
Win Source Part Number: 1099110-TF208TH-5-TL-H. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Tape & Reel (TR). Standard Package: 8,000. Mounting: SMD (SMT). FET Type: N-Channel. Power - Max: 100 mW. Current - Drain (Idss) @ Vds (Vgs=0): 210 µA @ 2 V. Current... [See More]
- Package Type: SOT3
- VGS(off): 0.1000
- Polarity: N-Channel
- TJ: 150
from Win Source Electronics
Win Source Part Number: 1108469-J111-D74Z. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Cut Tape (CT),Tape & Box (TB). Standard Package: 2,000. FET Type: N-Channel. Power - Max: 625 mW. Voltage - Breakdown (V(BR)GSS): 35 V. Current - Drain (Idss) @ Vds (Vgs=0): 20... [See More]
- Package Type: TO-92; SOT3
- VGS(off): 3
- Polarity: N-Channel
- rDS(on): 30
from Win Source Electronics
Win Source Part Number: 1108515-J112-D74Z. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Cut Tape (CT),Tape & Box (TB). Standard Package: 2,000. FET Type: N-Channel. Power - Max: 625 mW. Voltage - Breakdown (V(BR)GSS): 35 V. Current - Drain (Idss) @ Vds (Vgs=0): 5... [See More]
- Package Type: TO-92; SOT3
- VGS(off): 1
- Polarity: N-Channel
- rDS(on): 50
from Win Source Electronics
Win Source Part Number: 1188070-2N4338-E3. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Bulk. Standard Package: 200. FET Type: N-Channel. Power - Max: 300 mW. Voltage - Breakdown (V(BR)GSS): 50 V. Current - Drain (Idss) @ Vds (Vgs=0): 200 µA @ 15 V. Voltage -... [See More]
- Package Type: SOT3
- VGS(off): 0.3000
- Polarity: N-Channel
- TJ: -55 to 175
from Win Source Electronics
Win Source Part Number: 1226190-J110RLRA. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Bulk. Standard Package: 2,000. FET Type: N-Channel. Power - Max: 310 mW. Voltage - Breakdown (V(BR)GSS): 25 V. Current - Drain (Idss) @ Vds (Vgs=0): 10 mA @ 15 V. Voltage - Cutoff... [See More]
- Package Type: TO-92; SOT3
- VGS(off): 0.5000
- Polarity: N-Channel
- rDS(on): 18
from Win Source Electronics
Manufacturer: onsemi. Win Source Part Number: 1324129-PN4117. Category: Discrete Semiconductor Products >Transistors - JFETs. Packaging: Bulk. Standard Package: 2,000. Mounting: Through Hole. FET Type: N-Channel. Power - Max: 350 mW. Voltage - Breakdown (V(BR)GSS): 40 V. Current - Drain (Idss) @... [See More]
- Package Type: TO-92; SOT3; TO-226-3, TO-92-3 (TO-226AA)
- VGS(off): 0.6000
- Polarity: N-Channel
- TJ: -55 to 150
from Win Source Electronics
Win Source Part Number: 1351185-NSVJ5908DSG5T1G. Category: Discrete Semiconductor Products - Transistors - JFETs. Series: Automotive, AEC-Q101. Package: Tape & Reel. Standard Package: 3,000. FET Type: 2 N-Channel (Dual). Drain to Source Voltage (Vdss): 15 V. Power - Max: 300 mW. Mounting Type:... [See More]
- Package Type: SOT3
- VGS(off): 0.3000
- Polarity: N-Channel
- TJ: -55 to 150
from Win Source Electronics
Win Source Part Number: 1357087-JFE150DCKR. Category: Discrete Semiconductor Products - Transistors - JFETs. Temperature Range - Operating: -40 °C ~ 125 °C (TA). Fake Threat In the Open Market: 44 pct. MSL Level: 1 (Unlimited). Mfr: Texas Instruments. Package: Tape & Reel. Product... [See More]
- Package Type: SOT3
- VGS(off): 1.5
- Polarity: N-Channel
- TJ: -40 to 125
from Win Source Electronics
Win Source Part Number: 958859-J109-D26Z. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Tape & Reel (TR),Cut Tape (CT). Standard Package: 2,000. FET Type: N-Channel. Power - Max: 625 mW. Voltage - Breakdown (V(BR)GSS): 25 V. Current - Drain (Idss) @ Vds (Vgs=0): 40... [See More]
- Package Type: TO-92; SOT3
- VGS(off): 2
- Polarity: N-Channel
- rDS(on): 12
from Win Source Electronics
Win Source Part Number: 969554-CPH6904-TL-E. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Tape & Reel. Standard Package: 3,000. Mounting: SMD (SMT). FET Type: 2 N-Channel (Dual). Power - Max: 700 mW. Current - Drain (Idss) @ Vds (Vgs=0): 20 mA @ 5 V. Current Drain... [See More]
- Package Type: SOT3
- VGS(off): 0.6000
- Polarity: N-Channel
- TJ: 150
from Win Source Electronics
Win Source Part Number: 970719-MCH3914-7-TL-H. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Tape & Reel. Standard Package: 3,000. Mounting: SMD (SMT). FET Type: N-Channel. Drain to Source Voltage (Vdss): 15 V. Power - Max: 300 mW. Current - Drain (Idss) @ Vds... [See More]
- Package Type: SOT3
- VGS(off): 0.6000
- Polarity: N-Channel
- TJ: 150
from Win Source Electronics
Win Source Part Number: 985799-2SK3796-2-TL-E. Category: Discrete Semiconductor Products >Transistors - JFETs. Package: Tape & Reel (TR). Standard Package: 3,000. Mounting: SMD (SMT). FET Type: N-Channel. Drain to Source Voltage (Vdss): 30 V. Power - Max: 100 mW. Current - Drain (Idss) @ Vds... [See More]
- Package Type: SOT3
- VGS(off): 0.1800
- Polarity: N-Channel
- rDS(on): 200
from Win Source Electronics
Manufacturer: Qorvo. Category: Discrete Semiconductor Products -Transistors -JFETs. Package: Tube. Product Status: Active. FET Type: N-Channel. Voltage - Breakdown (V(BR)GSS): 1200 V. Operating Temperature: -55 °C ~ 175 °C (TJ). Mounting Type: Through Hole. Package / Case: TO-247-3. [See More]
- Package Type: TO-247; SOT3
- Polarity: N-Channel
from Win Source Electronics
Manufacturer: Qorvo. Category: Discrete Semiconductor Products -Transistors -JFETs. Package: Tape & Reel (TR) Cut Tape (CT). FET Type: N-Channel. Voltage - Breakdown (V(BR)GSS): 1700 V. Power - Max: 68 W. Operating Temperature: -55 °C ~ 175 °C (TJ). Mounting Type: Surface Mount. [See More]
- Package Type: SOT3
- Polarity: N-Channel