LESHAN RADIO COMPANY, LTD.
Low-voltage variable capacitance diode
FEATURES
路 Excellent linearity
路 Ultra small plastic SMD package
路 C4: 2.25 pF; ratio: 2.35
路 Low series resistance.
APPLICATIONS
路 Voltage controlled oscillators (VCO).
DESCRIPTION
The BB143 is a variable capacitance diode, fabricated in planar technology, and
encapsulated in the SOD523 (SC-79) ultra small plastic SMD package.
2
BB 143
1
SOD523 SC-79
MARKING CODE:L
1
CATHODE
2
L
MAX.
6
8
20
+150
+150
UNIT
V
V
mA
擄C
擄C
MAX.
10
200
鈥?/div>
5.75
2.55
UNIT
nA
nA
鈩?/div>
pF
pF
鈥?/div>
鈥?/div>
鈥?/div>
ANODE
1
2
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
V
R
V
RM
I
F
T
stg
T
j
PARAMETER
continuous reverse voltage
peak reverse voltage
continuous forward current
storage temperature
operating junction temperature
in series with a 10 k鈩?resistor
CONDITIONS
MIN.
鈥?/div>
鈥?/div>
鈥?/div>
鈥?5
鈥?5
ELECTRICAL CHARACTERISTICS
T
j
=25擄C unless otherwise specified.
SYMBOL
I
R
r
s
C
d
PARAMETER
reverse current
diode series resistance
diode capacitance
CONDITIONS
V
R
= 6 V; see Fig.2
V
R
=6 V; T
j
=85擄C; see Fig.2
f = 470 MHz; V
R
=1 V
V
R
= 1 V; f = 1 MHz;
see Figs 1 and 3
V
R
= 4 V; f = 1 MHz;
see Figs 1 and 3
C
d ( 1V)
C
d ( 4V)
capacitance ratio
f = 1 MHz
2.1
2.35
MIN.
鈥?/div>
鈥?/div>
鈥?/div>
4.75
2.05
TYP.
0.5
5.3
2.25
BB143鈥?/2
BB143 產品屬性
表面貼裝
0.85mm
I-IGIA
1.25 x 0.85 x 0.65mm
VCO
2
-55 °C
6V
4.75pF
2.1
+150 °C
1 → 4V
單
1.25mm
0.65mm
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