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
BSV79
IC FET N-CH TO-18
KSK30OBU
JFET N-CH 50V 0.1W TO92
2N5460_L99Z
IC AMP GP P-CHAN 40V 10MA TO-92
2N5638
SMALL SIGNAL FET
2N5457_D26Z
JFET N-CH 25V 625MW TO92
MMBF4392
SMALL SIGNAL FIELD-EFFECT TRANSI
BF246A
JFET N-CH 30V 0.35W TO92
J108_D27Z
JFET N-CH 25V 625MW TO92
SST4416-T1-E3
JFET N-CH 36V 5MA SOT-23
PF5103
JFET N-CH 40V 0.625W TO92
2N5458
JFET N-CH 25V 0.31W TO92
P1087_J18Z
JFET P-CH 30V 0.35W TO92
MMBF4391LT1
JFET SS N-CHAN 30V SOT23
J108,126
JFET N-CH 25V 0.4W SOT54
J176_D26Z
JFET P-CH 30V 0.35W TO92
2SK33720SL
JFET N-CH 2MA 100MW SSSMINI-3P
J174_D75Z
JFET P-CH 30V 0.35W TO92
NTE133
FET-AF AMP SWITCH
PN4117A_J61Z
JFET N-CH 40V 0.35W TO92
SST4118-T1-E3
JFET N-CH 70V 80UA SOT-23