This post explains for the diode BB-139.
The function of this semiconductor is 30V, Silicon Varicap Diode.
The package is DO-35 Type.
Manufacturer: Fairchild, ITT Components
See the preview image and the PDF file for more information.
1 page
Description
This is 30V, VHF / FM Varactor Diode.
BB139 pinout
Absolute maximum ratings :
0. Maximum Voltage : 30 V ( Working Inverse Voltage )
1. Storage Temperature Range : – 55 °C to + 150 °C
2. Maximum Junction Operating Temperature : + 150 °C
3. Load Temperature : + 260 °C
Application:
1. VHF Tuner
BB139 PDF Datasheet
