BB135 [LRC]
UHF Variable Capacitance Diode; 超高频可变电容二极管
| 型号： | BB135 |
| 厂家： | 
LESHAN RADIO COMPANY |
| 描述： | UHF Variable Capacitance Diode |
| 文件： | 总2页 (文件大小：39K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LESHAN RADIO COMPANY, LTD.
UHF Variable Capacitance
Diode
BB135
FEATURES
DESCRIPTION
1
· Excellent linearity
· Very small plastic SMD package.
· C28: 1.9 pF; ratio: 10
· Low series resistance.
APPLICATIONS
The BB135 is a variable capacitance
diode, fabricated in planar technology,
and encapsulated in the SOD323 very
small plastic SMD package.
2
The matched type, BB134 has the
same specification.
SOD– 323
· Electronic tuning in UHF television
tuners.
· Radio upconversion concepts
· VCO.
MARKING DIAGRAM
1
2
P5
CATHODE
ANODE
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
MIN.
–
MAX.
30
UNIT
V
VR
IF
continuous reverse voltage
continuous forward current
storage temperature
–
20
mA
°C
T
stg
–55
–55
+150
+125
T
j
operating junction temperature
°C
ELECTRICAL CHARACTERISTICS
Tj = 25 °C unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
VR = 30 V; see Fig.2
VR = 30 V; Tj = 85 °C; see Fig.2
diode series resistance f = 470 MHz; note 1
MIN. MAX. UNIT
IR
reverse current
–
–
10
200
0.75
21
nA
nA
Ω
rs
–
Cd
diode capacitance
VR = 0.5 V; f = 1 MHz; see Figs 1 and 3
VR = 28 V;f = 1 MHz; see Figs 1 and 3
f = 1 MHz
17.5
1.7
8.9
pF
pF
2.1
12
Cd( 0.5V )
Cd (28V )
Note
capacitance ratio
1. VR is the value at which Cd = 9 pF.
BB135–1/2
LESHAN RADIO COMPANY, LTD.
BB135
f = 1 MHz; Tj = 25 °C.
Fig.1 Diode capacitance as a function of reverse voltage; typical values.
Tj = 0 to 85 °C.
Tj °C.
VR (V).
Fig.2 Reverse current as a function of junction
temperature; maximum values.
Fig.3 Temperature coefficient of diode
capacitance as a function of
reverse voltage; typical values.
BB135–2/2
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