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
PMBFJ310,215
JFET N-CH 25V 250MW SOT23
2N5457_D27Z
JFET N-CH 25V 625MW TO92
2N5457_L99Z
IC AMP GP N-CHAN 25V 10MA TO-92
PN4393_D26Z
JFET N-CH 30V 625MW TO92
PN4861
JFET N-CH 30V 625MW TO92
J113_D75Z
JFET N-CH 35V 625MW TO92
LS5912 DIE
WIDEBAND, HIGH GAIN, MONOLITHIC
J174,126
JFET P-CH 30V 400MW TO92-3
2N5457_D75Z
JFET N-CH 25V 625MW TO92
2N5459_D74Z
JFET N-CH 25V 625MW TO92
PMBFJ308,215
JFET N-CH 25V 250MW SOT23
PN5432
SMALL SIGNAL N-CHANNEL MOSFET
DSK9J01P0L
JFET N-CH 30MA 125MW SSMINI3
PN4393_D75Z
JFET N-CH 30V 625MW TO92
J176,126
JFET P-CH 30V 400MW TO92-3
LS5911 DIE
WIDEBAND, HIGH GAIN, MONOLITHIC
2N5461G
JFET P-CH 40V 0.35W TO92
PN4391_D75Z
JFET N-CH 30V 625MW TO92
KSK596CBU
JFET N-CH 20V 0.1W TO-92S
J112RLRA
JFET N-CH 35V 0.35W TO92