2N6027 UJT Transistor TO-92 Package

The 2N6027 is a Programmable Unijunction Transistor (PUT) in a robust TO-92 package, designed for precise timing, triggering, and oscillator applications. Engineered for reliability and long service life, it’s a versatile choice for both electronics engineers and hobbyists building analog circuits, waveform generators, and control modules. Perfect for interfacing with microcontroller platforms via simple RC networks and driver stages.

Key Features ⚙️

• 🎛️ Programmable parameters: RBB, IV, and IP
• 🔻 Low On-State Voltage: maximum 1.5 V @ IF = 50 mA
• 🧪 Minimal Gate-to-Anode Leakage Current: maximum 10 nA
• 📈 High Peak Output Voltage: typical 11 V
• 🎯 Low Offset Voltage: typical 0.35 V (RG = 10 k)
• 🌱 Pb-free package options available

Typical Applications 🧩

• ⏱️ Timing circuits
• ⚡ Phase control applications
• 🎯 Triggering circuits
• 🔄 Oscillator circuits
• 📐 Waveform generators

Package and Connectivity 📦

Encapsulated in a compact TO-92 package for through-hole assembly. Typical PUT terminals: Anode (A), Gate (G), and Cathode (K). Suitable for breadboard prototyping and integration into discrete electronics components and modules.

Engineering Notes 💡

• For relaxation oscillators and sawtooth generators, bias the gate with a resistor divider and use an RC network at the anode to set frequency and voltage thresholds.
• When interfacing with Arduino or Raspberry Pi, use proper level shifting and current-limiting resistors; the PUT is an analog device and is best used to generate triggers for downstream circuits (e.g., SCR/triac drivers).
• Observe device maximum ratings and thermal limits to ensure long-term reliability.