LRC BB182B Datasheet

VHF variable capacitance diode
LESHAN RADIO COMPANY, LTD.
FEA TURES
· High linearity
· Excellent matching to 2% DMA
· Ultra small plastic SMD package
· C25: 2.8 pF; ratio: 17
· Low series resistance.
APPLICATIONS
· Electronic tuning in VHF television tuners, band A up to 160 MHz
· Voltage controlled oscillators (VCO).
DESCRIPTION
The BB182B 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.
2 ANODE
BB 182B
2
SOD523 SC-79
MARKING CODE:Y
1
LIMITING V ALUES In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
V
R
V
RM
I
F
T
stg
T
j
ELECTRICAL CHARACTERISTICS T
continuous reverse voltage 34 V
peak reverse voltage in series with a 10 k resistor 35 V
continuous forward current 2 0 mA
storage temperature –55 +150 °C
operating junction temperature –55 +125 °C
=25°C unless otherwise specified.
j
SYMBOL PARAMETER CONDITIONS MIN. MAX. TYP. UNIT
C C C C
I
R
r C
d(2V)
d(25V)
d
d
s
d
reverse current V R = 32 V; see Fig.2 10 nA
= 32 V; T j =85°C; see Fig.2 200 nA
V
R
diode series resistance f = 470 MHz; V R = 5V 1.1
diode capacitance
V R = 2 V; f = 1 MHz; see Figs 1and 3 V R = 25 V; f = 1 MHz; see Figs 1and 3
47 53 pF
2.65 3 pF
capacitance ratio f = 1 MH z 17
capacitance matching
V R = 2 to 25 V; in a sequence of 15
diodes(gliding)
––2%
Y
1
2
BB182B–1/2
LESHAN RADIO COMPANY, LTD.
80
70
60
50
( pF )
d
40
C
30
20
10
0
–1
10
1 10 10
V R ( V )
Fig.1 Diode capacitance as a function of reverse voltage; typical values.
f = 1 MHz; T j =25°C
BB 182B
2
3
10
(nA)
R
2
I
10
10
0 50 100
T j ( °C )
Fig.2 Reverse current as a function of junction
temperature; maximum values.
–3
10
–4
10
)
-1
( K
d
TC
–5
10
10
–1
1 10 10
2
V R ( V )
Fig.3 Temperature coefficient of diode capacitance as a function of
reverse voltage; typical values.
BB182B–2/2
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