100 Varicap Diodes for AM High Capacitance – Siemens BB112

⚡ High-Capacitance Varicap Diodes – BB112 (Set of 100)

📌 Description
Set of 100 BB112 varicap diodes, silicon planar diodes with voltage-controlled variable capacitance, mainly designed for AM tuning and other circuits requiring controlled capacitance variation (e.g., voltage-controlled oscillators, RF tuning circuits).

🧰 Specifications
📍 Type: Varicap diode / voltage-controlled capacitor
⚡ Model: BB112 – silicon, planar, traditional leaded package (TO‑92 / SOD‑69)
🔋 Reverse bias voltage range: ~1 V to 8 V (tuning range)
🧠 Typical capacitance:

• ~440–520 pF at 1 V
• ~17–34 pF at ~8 V
  💠 Behavior: Acts like a variable capacitor; 30 pF at 8 V increases up to 500 pF at 1 V with excellent linearity
  📐 Package: Compact TO‑92 – minimal footprint
  📦 Quantity: Set of 100 diodes
  ✨ Condition: Brand new, unsoldered
  🏷 Brand: Siemens

🧠 Typical Applications
📻 Electronic tuning in AM radios
🎚 Oscillators, VCOs, and synthesizers
📡 Electronically tuned RF filters
🛠 DIY radio and analog electronics projects
💡 Controlled capacitance for frequency adjustment and resonance circuits

💡 Technical Information
BB112 varicap diodes change capacitance depending on applied reverse voltage, making them ideal for tuning resonant circuits and frequency control in RF applications. Their high capacitance range allows usage on both medium and longwave bands.

📦 Included in the Set

• 100 BB112 varicap diodes

🧠 Usage Notes

• Perfect for replacing mechanical capacitors in radios and RF circuits
• Applicable in receivers, VFO oscillators, generators, wobbulators, transmitters, and more
• Extensive documentation and application notes available online