This document describes the features and characteristics of BB 914 Silicon Variable Capacitance Diode, which is suitable for FM radio tuner with extended frequency band. It has high tuning ratio and low supply voltage (car radio), and a monolithic chip (common cathode) for perfect dual diode tracking. It also has good linearity of C-V curve and high figure of merit.
The BB 914 is a silicon variable capacitance diode designed for FM radio tuners with an extended frequency band and low supply voltage. It is offered in a monolithic SOT‑23 package and features good linearity of the C‑V curve and a high figure of merit.
The document lists maximum ratings such as a reverse voltage of 18 V, peak reverse voltage of 20 V, forward current of 50 mA, and operating temperature range from –55 °C to +125 °C. Electrical characteristics include reverse current values (20 nA‑200 nA), diode capacitance around 43 pF at 2 V/1 MHz, capacitance ratio of about 2.3, and series resistance of 0.28 Ω.
| Reverse voltage (Ve) | 18 V |
|---|---|
| Peak reverse voltage (Vam) | 20 V |
The diode can withstand a reverse voltage of up to 18 V.