The Siemens BB609A and BB609B are silicon variable capacitance diodes intended for tuning extended frequency bands in VHF and CATV tuners. They are not recommended for new designs but serve as spare parts for existing equipment.
The document provides maximum ratings, electrical characteristics, and package information, including reverse voltage, forward current, temperature ranges, capacitance values, series resistance, and inductance.
| Peak reverse voltage | 30 V |
|---|---|
| Forward current (Ir) | 20 mA |
| Operating temperature range | -55 °C to +100 °C |
| Storage temperature range | -56 °C to +150 °C |
| Reverse current (typical) at 30 V | 20 nA |
| Diode capacitance at 1 MHz (BB609A) | 32.5 pF |
| Series resistance | ~0.7 Ω |
| Series inductance | 3 nH |
| Capacitance matching tolerance | 2.5 % |
The BB609A diode can withstand a peak reverse voltage of 30 V.
At 1 MHz, the BB609A diode has a typical capacitance of 32.5 pF.
The series resistance is approximately 0.7 Ω.
It operates from –55 °C up to +100 °C.