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參數(shù)資料
| 型號(hào)： | BB178 |
| 廠商： | 樂山無線電股份有限公司 |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | VHF variable capacitance diode |
| 中文描述： | 甚高頻變?nèi)荻O管 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大小： | 155K |
| 代理商： | BB178 |
LESHAN RADIO COMPANY, LTD.
BB178–1/2
VHF variable capacitance diode
BB 178
2
ANODE
1
CATHODE
LIMITING VALUES
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
continuous reverse voltage
peak reverse voltage
continuous forward current
storage temperature
operating junction temperature
–
–
–
32
35
20
V
V
in series with a 10 k
resistor
mA
°C
°C
–55
–55
+150
+125
ELECTRICAL CHARACTERISTICS
T
j
=25°C unless otherwise specified.
SYMBOL
I
R
PARAMETER
reverse current
CONDITIONS
V
R
= 30 V; see Fig.2
V
R
= 30 V; T
j
=85°C; see Fig.2
f = 100 MHz;
V
R
is the value at which Cd =30 pF
V
R
= 1 V; f = 1 MHz; see Figs 1and 3
V
R
= 28 V; f = 1 MHz; see Figs 1and 3
MIN.
–
–
MAX.
–
–
TYP.
10
200
UNIT
nA
nA
r
s
diode series resistance
–
0.65
0.8
C
d
diode capacitance
34.65
2.361
–
–
42.35
2.754
pF
pF
C
d(1V)
C
d(2V)
C
d(1V)
C
d(28V)
C
d(25V)
C
d(28V)
C
d
C
d
capacitance ratio
f = 1 MHz
–
1.3
–
capacitance ratio
f = 1 MHz
13.5
–
–
capacitance ratio
f = 1 MHz
–
1.08
–
capacitance matching
V
R
= 1 to 28 V; in a sequence of 15
diodes(gliding)
–
–
2
%
FEATURES
· Excellent linearity
· Excellent matching to 2% DMA
· Ultra small plastic SMD package
· C 28: 2.6 pF; ratio: 15
· Very low series resistance.
APPLICATIONS
· Electronic tuning in VHF television
tuners, band B up to 460 MHz
· Voltage controlled oscillators(VCO).
DESCRIPTION
The BB178 is a planar technology variable
capacitance diode, in a SOD523 (SC-79)
package. The excellent matching perfor-
mance is achieved by gliding matching and
a direct matching assembly procedure.
MARKING CODE:8
8
1
2
SOD523 SC-79
1
2
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| BB178 | VHF variable capacitance diode |
| BB178 | VHF variable capacitance diode |
| BB179BLX | UHF variable capacitance diode |
| BB179BLX | UHF variable capacitance diode |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BB178 /T3 | 功能描述:整流器 TAPE13 DIO-RFSS RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Standard Recovery Rectifiers 配置: 反向電壓:100 V 正向電壓下降: 恢復(fù)時(shí)間:1.2 us 正向連續(xù)電流:2 A 最大浪涌電流:35 A 反向電流 IR:5 uA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-221AC 封裝:Reel |
| BB178,115 | 功能描述:變?nèi)荻O管 VHF VAR CAP 32V RoHS:否 制造商:Skyworks Solutions, Inc. 電容:5.2 pF 反向電壓:10 V 正向連續(xù)電流:20 mA 端接類型:SMD/SMT 封裝 / 箱體:SC-79 封裝:Reel |
| BB178,115-CUT TAPE | 制造商:NXP 功能描述:BB178 Series VHF Variable Capacitance Diode - SOD-523 |
| BB178,135 | 功能描述:變?nèi)荻O管 TAPE13 DIO-RFSS RoHS:否 制造商:Skyworks Solutions, Inc. 電容:5.2 pF 反向電壓:10 V 正向連續(xù)電流:20 mA 端接類型:SMD/SMT 封裝 / 箱體:SC-79 封裝:Reel |
| BB178,315 | 功能描述:變?nèi)荻O管 VHF 32V 42.35pF Variable Cap RoHS:否 制造商:Skyworks Solutions, Inc. 電容:5.2 pF 反向電壓:10 V 正向連續(xù)電流:20 mA 端接類型:SMD/SMT 封裝 / 箱體:SC-79 封裝:Reel |
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