LESHAN RADIO COMPANY, LTD.
BB182–1/2
VHF variable capacitance diode
SOD523 SC-79
1
2
BB 182
2
ANODE
1
CATHODE
FEATURES
· High linearity
· Excellent matching to 2% DMA
· Ultra small plastic SMD package
· C28: 2.7 pF; ratio: 22
· Low series resistance.
APPLICATIONS
· Electronic tuning in VHF television tuners, band A up to 160 MHz
· Voltage controlled oscillators (VCO).
DESCRIPTION
The BB182 is a planar technology variable capacitance diode, in a SOD523 (SC-79)
package. The excellent matching performance is achieved by gliding matching and a
direct matching assembly procedure.
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
V R continuous reverse voltage – 32 V
V
RM
peak reverse voltage in series with a 10 kΩ resistor – 35 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 T
j
=25°C unless otherwise specified.
SYMBOL PARAMETER CONDITIONS MIN. MAX. TYP. UNIT
I
R
reverse current V
R
= 30 V; see Fig.2 – – 10 nA
V R = 30 V; T j =85°C; see Fig.2 – – 200 nA
r
s
diode series resistance f = 100 MHz; – 1 1.2 Ω
V R is the value at which Cd =30 pF
C
d
diode capacitance V
R
= 1 V; f = 1 MHz; see Figs 1and 3 52 – 62 pF
V R = 28 V; f = 1 MHz; see Figs 1and 3 2.48 – 2.89 pF
C
d(1V)
capacitance ratio f = 1 MHz – 1.31 –
C d(2V)
C
d(1V)
capacitance ratio f = 1 MHz 20.6 – –
C d(28V)
C
d(25V)
capacitance ratio f = 1 MHz – 1.05 –
C d(28V)
∆C
d
capacitance matching
V
R
= 1 to 28 V; in a sequence of 15
––2%
C
d
diodes(gliding)
MARKING CODE:2
2
1
2