LESHAN RADIO COMPANY, LTD.
BB133–1/2
VHF Variable Capacitance
Diode
SOD– 323
1
2
BB133
P3
MARKING DIAGRAM
2
ANODE
1
CATHODE
FEATURES
· Excellent linearity
· Excellent matching to 0.7% DMA
· Very small plastic SMD package
· C28: 2.5 pF; ratio: 16.
· Low series resistance.
APPLICATIONS
· Electronic tuning in VHF television
tuners, band B up to 460 MHz
· VCO.
DESCRIPTION
The BB133 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 un-
matched type, BB150 has the same
specification.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER MIN. MAX. UNIT
VR continuous reverse voltage – 30 V
IF continuous forward current – 20 mA
Tstg storage temperature –55 +150 °C
Tj operating junction temperature –55 +125 °C
ELECTRICAL CHARACTERISTICS
Tj = 25 °C unless otherwise specified.
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
IR reverse current VR = 30 V; see Fig.2 – 10 nA
VR = 30 V; Tj = 85 °C; see Fig.2 – 200 nA
rs diode series resistance f = 100 MHz; note 1 – 0.9 Ω
Cd diode capacitance VR = 0.5 V; f = 1 MHz; see Figs 1 and 3 38 46 pF
VR = 28 V;f = 1 MHz; see Figs 1 and 3 2.2 2.6 pF
Cd( 0.5V ) capacitance ratio f = 1 MHz 14 21
Cd (28V )
capacitance matching VR = 0.5 to 28 V; in a sequence of 4 diodes – 0.7 %
∆Cd (gliding)
Cd VR= 0.5 to 28 V; in a sequence of 15 diodes – 2 %
(gliding)
Note
1. VR is the value at which Cd = 30 pF.