Philips BB149
The BB149 is a variable capacitance diode, fabricated in planar technology, and encapsulated in the SOD323 very small plastic SMD package. The excellent matching performance is achieved by gliding matching and a direct matching assembly procedure. The unmatched type, BB159 has the same specification.| Part No. | BB149 |
|---|---|
| Datasheet | BB149 Download |
| Manufacturer |  Philips |
| Description | UHF variable capacitance diode |
| Buy | Stock & Price |
FEATURES
● Excellent linearity● Excellent matching to 1% DMA
● Very small plastic SMD package
● C28: 2.1 pF; ratio 9
● Low series resistance. MAM130 BB149 handbook, 4 columns k a
APPLICATIONS
● Electronic tuning in UHF television tuners● VCO. Fig.1 Simplified outline (SOD323) and symbol.
DESCRIPTION
ELECTRICAL CHARACTERISTICS
Tj = 25 °C unless otherwise specified. SYMBOL IR rs Cd PARAMETER reverse current CONDITIONS VR = 30 V; see Fig.3 VR = 30 V; Tj = 85 °C; see Fig.3 diode series resistance f = 470 MHz; note 1 diode capacitance capacitance ratio VR = 1 V; f = 1 MHz; see Figs 2 and 4 VR = 28 V; f = 1 MHz; see Figs 2 and 4 C d ( 1V ) -------------------C d ( 28V ) C d ( 19V ) -------------------C d ( 28V ) ∆C d --------Cd Note 1. VR is the value at which Cd = 9 pF. 1998 Sep 15 2 f = 1 MHz − − 18 1.9 8.2 MIN. − MAX. 10 200 0.75 19.5 2.25 10 UNIT nA nA Ω pF pF LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VR IF Tstg Tj PARAMETER continuous reverse voltage continuous forward current storage temperature operating junction temperature − − −55 −55 MIN.
