BF245 N-Channel JFET Transistor – Low Noise Amplification & Switching

The BF245 is an N-Channel junction field-effect transistor (JFET) designed for low-noise signal amplification and high input impedance applications. It is widely used in RF, audio, and general-purpose analog circuits.

⚙️ Key Features

• 🔋 High input impedance
• 🔇 Low noise figure – ideal for sensitive signal amplification
• ⚡ Drain-source voltage up to 30V
• 📦 TO-92 package for through-hole designs
• 🌐 Suitable for high-frequency circuits

📦 Typical Applications

• 🎙️ Audio preamplifiers
• 📡 RF front-end circuits
• 🧪 Low-level signal detection
• 📐 High-impedance sensor interfacing

Thanks to its low noise characteristics and high reliability, the BF245 is a popular choice in analog designs where clean signal amplification is crucial.