BB142 [LRC]
Low-voltage variable capacitance diode; 低电压可变电容二极管
| 型号： | BB142 |
| 厂家： | 
LESHAN RADIO COMPANY |
| 描述： | Low-voltage variable capacitance diode |
| 文件： | 总2页 (文件大小：125K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LESHAN RADIO COMPANY, LTD.
Low-voltage variable capacitance diode
BB 142
FEATURES
· Excellent linearity
DESCRIPTION
The BB142 is a variable capacitance
1
· Ultra small plastic SMD package
· C4: 2.05 pF; ratio: 2.2
diode, fabricated in planar
technology, and encapsulated in the
SOD523 (SC-79) ultra small plastic
SMD package.
· Low series resistance.
APPLICATIONS
· Voltage controlled oscillators (VCO).
2
SOD523 SC-79
1
2
MARKING CODE:K
CATHODE
ANODE
2
1
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V R
V RM
I F
continuous reverse voltage
peak reverse voltage
–
–
6
8
V
V
in series with a 10 kΩ resistor
continuous forward current
storage temperature
–
20
mA
°C
°C
T stg
T j
–55
–55
+150
+150
operating junction temperature
ELECTRICAL CHARACTERISTICS T j =25°C unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
V R = 6 V; see Fig.2
V R =6 V; T j =85°C; see Fig.2
f = 470 MHz; V R =1 V
V R = 1 V; f = 1 MHz;
see Figs 1 and 3
MIN.
TYP.
MAX.
UNIT
nA
I R
reverse current
–
–
–
–
–
10
200
–
nA
r s
diode series resistance
diode capacitance
0.5
Ω
C d
4
4.6
4.9
pF
pF
V R = 4 V; f = 1 MHz;
see Figs 1 and 3
1.85
2.05
2.35
C d ( 1V)
C d ( 4V)
capacitance ratio
f = 1 MHz
2
2.2
–
BB142–1/2
LESHAN RADIO COMPANY, LTD.
BB 142
10
8
6
4
2
0
10–1
1
10
V R ( V )
Fig.1 Diode capacitance as a function of reverse voltage; typical values.
10 3
10 2
10
10 -3
10 -4
10 –1
0
50
100
1
10
T j ( °C )
V R ( V )
Fig.3 Temperature coefficient of diode capacitance as a function of
reverse voltage; typical values.
Fig.2 Reverse current as a function of junction
temperature; maximum values.
BB142–2/2
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