This document describes the features and characteristics of the BB 837 Silicon Tuning Diode. It is specially designed for use in TV-sat indoor units, with high capacitance ratio and extended frequency range up to 2.8 GHz.
The BB 837 is a silicon tuning diode designed for TV‑sat indoor units with an extended frequency range up to 2.8 GHz and a high capacitance ratio. It is supplied in an SOD‑323 package (1=C 2=A) and is intended for use where precise capacitance matching is required.
Key specifications include a reverse voltage rating of 30 V (peak 35 V), forward current of 20 mA, operating temperature from –5 °C to +150 °C, and a typical diode capacitance of 6 pF at 1 V/1 MHz. Detailed DC and AC characteristics, such as reverse currents and series resistance, are also listed.
| Peak reverse voltage (Vem) | 35 V |
|---|---|
| Forward current (Ir) | 20 mA |
| Operating temperature range (Top) | -5 °C … +150 °C |
| Storage temperature (Tstg) | -5 °C … +150 °C |
| Reverse current (IR) | ≤10 nA |
| Reverse current (Ip) | ≤200 nA |
| Diode capacitance (1 V, 1 MHz) | 6 pF |
| Capacitance ratio (Cr1/Crog) | up to 12.2 |
| Series resistance (Rs) | 1.5 Ω |
| Series inductance (Ls) | 1.4 nH |
It operates from –5 °C up to +150 °C.
The typical capacitance is 6 pF under those conditions.