2N4861-JFET-Nchannel N-Channel JFET Transistor – TO-18 Metal Can Package (ON Semiconductor)

2N4861-JFET-Nchannel Overview

The 2N4861 is a high-performance N-channel Junction Field Effect Transistor (JFET) designed for low-noise and high-gain applications. It features a low gate-to-source cutoff current and a high forward transfer admittance, making it ideal for amplifier and switching circuits requiring stable and precise operation. Its robust voltage and current handling capabilities ensure reliable performance in industrial and commercial electronics. Engineers and sourcing specialists will find this device valuable for its balance of electrical characteristics and dependable operation. For further technical details and sourcing options, visit IC Manufacturer.

2N4861-JFET-Nchannel Technical Specifications

2N4861-JFET-Nchannel Key Features

• Low Gate Leakage Current: Minimizes input bias current, enhancing signal integrity in sensitive amplifier circuits.
• High Forward Transfer Admittance: Provides strong gain performance, critical for low-noise applications and high-frequency operation.
• Wide Operating Temperature Range: Ensures reliable performance in industrial environments with temperature extremes from -65??C to +200??C.
• Robust Voltage Ratings: Supports up to 25V drain-source voltage and -30V gate-source voltage, suitable for diverse analog and switching applications.

Typical Applications

• Low-noise audio preamplifiers where minimal distortion and high gain are essential for clear signal amplification.
• Analog signal processing circuits requiring stable and precise transistor operation over varying temperature ranges.
• Switching applications in industrial control systems that demand reliable response and low leakage currents.
• Sensor interfaces where low input current and high input impedance are necessary for accurate measurement and signal conditioning.

2N4861-JFET-Nchannel Advantages vs Typical Alternatives

This N-channel JFET offers superior low gate leakage and high forward transfer admittance compared to many typical transistors, resulting in better sensitivity and gain stability. Its wide operating temperature and robust voltage ratings make it a reliable choice for demanding industrial applications. These advantages provide engineers with enhanced accuracy and durability, reducing the need for complex compensation circuits common with other device types.

2N4861-JFET-Nchannel Brand Info

The 2N4861 JFET is a widely recognized discrete semiconductor transistor originally standardized by prominent manufacturers such as Motorola and later produced by various semiconductor suppliers. Known for its reliability and consistent performance, it has become a staple component in analog circuit design. This device adheres to established industry standards for JFETs, ensuring compatibility and interchangeability in established designs. It is distributed by multiple authorized electronic component providers, supporting global industrial and commercial electronics markets.

FAQ

What is the maximum drain-source voltage rating of the 2N4861 JFET?

The maximum drain-source voltage rating for this N-channel JFET is 25 volts. Operating the device within this voltage limit ensures safe transistor function and prevents breakdown or damage.

Can the device operate reliably at high temperatures?

Yes, the transistor supports an operating junction temperature range from -65??C to +200??C, making it suitable for harsh industrial environments where temperature extremes are common.

Application	Consumer Electronics, Industrial Automation, Telecommunications and Networking