Transistors - JFETs
Category Introduction: Transistors - JFETs
Definition:
Transistors - JFETs (Junction Field-Effect Transistors) are a specialized type of discrete semiconductor device that controls current flow using an electric field. Unlike bipolar transistors, JFETs operate with a voltage-controlled channel, offering high input impedance, low noise, and excellent linearity. They are widely used in amplification, switching, and signal processing applications where precise control and minimal distortion are critical.
Types of JFETs:
This category includes several variants tailored for different circuit requirements:
- N-Channel JFETs: Conduct current when a negative voltage is applied to the gate, ideal for low-power applications.
- P-Channel JFETs: Operate with a positive gate voltage, suited for complementary designs.
- Dual JFETs: Integrate two JFETs in a single package for matched performance in differential circuits.
- RF JFETs: Optimized for high-frequency applications like communication systems.
Purchasing Recommendations:
When selecting JFETs, consider the following:
1. Application Needs: Match specifications (e.g., cutoff voltage, transconductance) to your circuit s demands (e.g., audio amps, sensors).
2. Noise Performance: For sensitive analog circuits (e.g., preamps), prioritize low-noise models.
3. Packaging: Choose through-hole or surface-mount (SMD) options based on assembly methods.
4. Supplier Reliability: Source from trusted manufacturers (e.g., ON Semiconductor, Vishay) to ensure consistency and longevity.
JFETs excel in niche applications requiring high impedance and stability. Evaluate datasheets thoroughly to optimize performance and cost-efficiency.
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Categories
2N4119A-E3
MOSFET N-CH 40V 200UA TO-206AF
2N4117A-E3
MOSFET N-CH 40V 30UA TO-206AF
BSR56,215
JFET N-CH 40V 0.25W SOT23
2SK275100L
JFET N-CH 10MA 200MW MINI-3
2N5461_L99Z
IC AMP GP P-CHAN 40V 10MA TO-92
PN4117A
JFET N-CH 40V 0.35W TO92
U1898_D27Z
JFET N-CH 40V 0.625W TO92
PMBF4393,215
JFET N-CH 40V 250MW SOT23
PN4391_D26Z
JFET N-CH 30V 625MW TO92
MMBF5460LT1G
JFET P-CH 40V 0.225W SOT23
2SK01980RL
JFET N-CH 20MA 150MW MINI-3
MMBF4391
JFET N-CH 30V 350MW SOT23-3
BFR30LT1
JFET N-CH 225MW SOT23
2N5461RLRAG
JFET P-CH 40V 0.35W TO92
PN4302
JFET N-CH 30V 625MW TO92
2SK3372GSL
JFET N-CH 2MA 100MW SSSMINI-3
2N5460_D75Z
JFET P-CH 40V 0.35W TO92
SST4416-E3
JFET N-CH 36V 5MA SOT-23
2SK06630RL
JFET N-CH 30MA 150MW SMINI-3
BF246B
JFET N-CH 25V 625MW TO92