LESHAN RADIO COMPANY, LTD.
BB135–1/2
UHF Variable Capacitance
Diode
SOD– 323
1
2
BB135
P5
MARKING DIAGRAM
2
ANODE
1
CATHODE
FEATURES
· Excellent linearity
· Very small plastic SMD package.
· C28: 1.9 pF; ratio: 10
· Low series resistance.
APPLICATIONS
· Electronic tuning in UHF television
tuners.
· Radio upconversion concepts
· VCO.
DESCRIPTION
The BB135 is a variable capacitance
diode, fabricated in planar technology,
and encapsulated in the SOD323 very
small plastic SMD package.
The matched type, BB134 has the
same specification.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER MIN. MAX. UNIT
V
R
continuous reverse voltage – 30 V
I
F
continuous forward current – 20 mA
T
stg
storage temperature –55 +150 °C
T
j
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 = 470 MHz; note 1 – 0.75 Ω
Cd diode capacitance VR = 0.5 V; f = 1 MHz; see Figs 1 and 3 17.5 21 pF
VR = 28 V;f = 1 MHz; see Figs 1 and 3 1.7 2.1 pF
Cd( 0.5V ) capacitance ratio f = 1 MHz 8.9 12
Cd (28V )
Note
1. VR is the value at which Cd = 9 pF.