BB 619C is a silicon variable capacitance diode from Dinghao. It is used for tuning of extended frequency band in VHF TV/VTR tuners.
The BB 619C silicon variable capacitance diode is intended for tuning extended frequency bands in VHF TV and VTR tuners. It is supplied in a SOD‑123 package and marked with the ordering code Q62702‑B683.
The datasheet lists maximum ratings such as a reverse voltage of 30 V, peak reverse voltage of 35 V, forward current of 20 mA, and an operating temperature range from –55 °C to +125 °C. Electrical characteristics include diode capacitance values (e.g., 39 pF at 1 V, 1 MHz) and series resistance of 0.6 Ω at 5 V, 470 MHz.
| Peak reverse voltage (Vam) | 35 V |
|---|---|
| Forward current (Ie) | 20 mA |
| Operating temperature range | -55 °C to +125 °C |
| Diode capacitance at Va=1 V, f=1 MHz (typical) | 39 pF |
| Series resistance at Vea=5 V, f=470 MHz | 0.6 Ω |
| Series inductance | 2.5 nH |
The maximum reverse voltage is 30 V.
The typical capacitance is 39 pF.
It operates from –55 °C up to +125 °C.
The forward current rating is 20 mA.