MQ2N4859UB-JFET-NChannel Overview
The MQ2N4859UB is a high-performance N-channel JFET designed for low-noise amplification and switching applications in analog circuits. Its robust electrical characteristics, including low gate leakage and high gain, make it ideal for precision signal processing and sensor interfacing. This device offers reliable operation within a broad voltage range and supports efficient integration into complex semiconductor systems. Engineers and sourcing specialists will appreciate its consistent parameters and package compatibility, ensuring seamless deployment in industrial and instrumentation designs. For detailed technical support and procurement, visit IC Manufacturer.
MQ2N4859UB-JFET-NChannel Technical Specifications
| Parameter | Specification | Unit |
|---|---|---|
| Gate-Source Cutoff Voltage (VGS(off)) | -2.0 to -6.0 | V |
| Drain Current (IDSS) | 2 to 9 | mA |
| Gate Leakage Current (IGSS) | ??100 | pA |
| Forward Transfer Admittance (|Yfs|) | 1600 min | ??mho |
| Drain-Source Voltage (VDS) | 30 | V |
| Power Dissipation (PD) | 310 | mW |
| Operating Temperature Range | -55 to +150 | ??C |
| Package Type | TO-92 | ?? |
MQ2N4859UB-JFET-NChannel Key Features
- Low Gate Leakage Current: Ensures minimal input bias current, enabling high-precision signal amplification.
- Wide Gate-Source Cutoff Voltage Range: Provides flexibility in biasing conditions for varied circuit designs.
- High Forward Transfer Admittance: Supports strong gain performance, improving overall circuit sensitivity.
- Robust Power Dissipation Capability: Allows reliable operation under moderate thermal stress, enhancing device longevity.
Typical Applications
- Low-noise preamplifiers and signal conditioning circuits requiring stable N-channel JFET characteristics for accuracy.
- Analog switches and chopper circuits where low gate leakage improves switching performance.
- Sensor interface circuits for detecting small signals with minimal distortion and noise.
- Audio frequency amplifiers where high gain and low noise are critical for sound quality.
MQ2N4859UB-JFET-NChannel Advantages vs Typical Alternatives
This N-channel JFET provides superior low gate leakage and wide operating voltage range compared to typical alternatives, resulting in enhanced signal fidelity and reduced power consumption. Its consistent gain and stable cutoff voltage improve circuit predictability and reduce design complexity. The robust power dissipation rating supports reliable long-term use in industrial environments, making it a preferred choice for precise analog applications.
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MQ2N4859UB-JFET-NChannel Brand Info
The MQ2N4859UB is manufactured by a leading semiconductor producer specializing in discrete transistor devices. Known for stringent quality control and reliable performance, the brand ensures that this JFET meets rigorous industrial standards. The device is offered in a standard TO-92 package, widely recognized for ease of integration and thermal management. This product is part of a family of JFETs designed to provide engineers dependable components for signal amplification and switching tasks.
FAQ
What are the key electrical characteristics of this N-channel JFET?
The device features a gate-source cutoff voltage between -2.0 V and -6.0 V, a drain current range of 2 to 9 mA, and an exceptionally low gate leakage current around ??100 pA. These parameters support low-noise, high-precision analog performance.
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In what package is the transistor supplied, and why is it important?
This JFET is supplied in a TO-92 package, which provides a compact form factor with reliable thermal dissipation. The package type facilitates easy mounting on PCBs and is compatible with standard through-hole assembly processes.







