BB158 is a variable capacitance diode produced by Philips Semiconductors. It has excellent linearity, very small size, and is packaged in a very small plastic SMD package. This diode is used for electronic tuning in VHF television tuners, band B up to 460 MHz, and can also be used for VCO.
This document is a product specification datasheet for the Philips BB158, a discrete semiconductor device designed as a VHF variable capacitance diode. It is fabricated in planar technology and encapsulated in a very small plastic SOD323 package.
The datasheet provides target specifications including excellent linearity, low series resistance, and specific capacitance values suitable for electronic tuning in VHF television tuners up to 460 MHz and Voltage Controlled Oscillators (VCO). It includes graphical data on capacitance versus reverse voltage and temperature coefficients.
| Continuous reverse voltage | - 30 V |
|---|---|
| Continuous forward current | - 20 mA |
| Operating junction temperature | -55 +125 °C |
| Diode series resistance | 0.9 Ω |
| Capacitance at Vp=1V | 36.8 - 41.8 pF |
| Capacitance at Vr=28V | 2.4 - 2.75 pF |
| Capacitance ratio | 14.5 |
The maximum continuous reverse voltage is 30 V.
It is used for electronic tuning in VHF television tuners (band B up to 460 MHz) and as a Voltage Controlled Oscillator (VCO).