2N4858UB-JFET-NChannel Overview
The 2N4858UB is an N-Channel Junction Field Effect Transistor (JFET) designed for low noise and high gain applications in analog circuits. With a well-defined pinch-off voltage and a dependable drain-source breakdown voltage, this transistor is ideal for precision amplification and switching tasks. Its robust electrical characteristics ensure stable operation in demanding industrial environments. The device??s low gate leakage current and high input impedance make it especially suitable for sensitive signal processing. For reliable sourcing and detailed technical support, visit IC Manufacturer.
2N4858UB-JFET-NChannel Technical Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Drain-Source Voltage | VDS | 25 | V |
| Gate-Source Voltage | VGS | -25 | V |
| Drain Current (Continuous) | ID | 10 | mA |
| Gate Reverse Current | IGSS | ??10 | nA |
| Pinch-Off Voltage | Vp | -2.0 to -6.0 | V |
| Drain-Source On Resistance | RDS(on) | ?? 200 | ?? |
| Power Dissipation | PD | 310 | mW |
| Operating Junction Temperature | Tj | -55 to +150 | ??C |
2N4858UB-JFET-NChannel Key Features
- Low Noise Performance: Minimizes signal distortion, critical for high fidelity analog amplification.
- High Input Impedance: Enables interfacing with high-impedance signal sources without loading effects.
- Robust Voltage Handling: Supports up to 25 V drain-source voltage, suitable for a wide range of industrial applications.
- Stable Thermal Characteristics: Operates reliably across a junction temperature range from -55??C to +150??C.
Typical Applications
- Low noise preamplifiers for audio and instrumentation circuits where signal integrity is paramount.
- Analog switches and choppers requiring precise control of gate voltage and minimal leakage.
- Buffer stages in sensor signal conditioning to maintain linearity and reduce loading effects.
- High-impedance input stages in RF amplifiers and other sensitive electronics.
2N4858UB-JFET-NChannel Advantages vs Typical Alternatives
This transistor delivers superior sensitivity and low gate leakage current compared to many alternatives, enhancing accuracy in analog signal processing. Its wide operating temperature range and robust voltage ratings improve reliability in industrial environments. Additionally, the high input impedance reduces signal distortion, making it favorable for precision amplification over standard bipolar or MOSFET transistors in similar roles.
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2N4858UB-JFET-NChannel Brand Info
The 2N4858UB JFET is primarily produced by established semiconductor manufacturers specializing in discrete analog components. Known for quality and consistency, this device is widely integrated into industrial and commercial circuits requiring dependable low-noise performance. The product benefits from comprehensive datasheets and global distribution channels, ensuring that engineering teams have access to detailed technical support and reliable supply.
FAQ
What is the maximum drain-source voltage rating for this JFET?
The maximum drain-source voltage (VDS) rating for this transistor is 25 volts. Operating above this voltage may result in device breakdown or permanent
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