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參數資料
| 型號： | BB149 |
| 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： | UHF variable capacitance diode |
| 中文描述： | 超高頻變容二極管 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 51K |
| 代理商： | BB149 |
LESHAN RADIO COMPANY, LTD.
BB149–1/2
UHF variable capacitance diode
SOD– 323
1
2
BB 149
2
ANODE
1
CATHODE
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
V
R
continuous reverse voltage
I
F
continuous forward current
T
stg
storage temperature
T
j
operating junction temperature
MIN.
–
–
–55
–55
MAX.
30
20
+150
+125
UNIT
V
mA
°C
°C
ELECTRICAL CHARACTERISTICS
T
j
= 25 °C unless otherwise specified.
SYMBOL
PARAMETER
I
R
reverse current
CONDITIONS
MIN.
–
–
–
18
1.9
8.2
MAX. UNIT
10
200
0.75
19.5
2.25
10
V
R
= 30 V; see Fig.2
V
R
= 30 V; T
j
= 85 °C; see Fig.2
f = 470 MHz; note 1
V
R
= 0.5 V; f = 1 MHz; see Figs 1 and 3
V
R
= 28 V;f = 1 MHz; see Figs 1 and 3
f = 1 MHz
nA
nA
pF
pF
r
s
C
d
diode series resistance
diode capacitance
C
d( 1V )
C
d (28V )
C
d( 19V )
C
d (28V )
C
d
C
d
capacitance ratio
capacitance ratio
f = 1 MHz
1.2
–
capacitance matching
V
R
= 0.5 to 28 V; in a sequence of 4 diodes
(gliding)
V
R
= 0.5 to 28 V; in a sequence of 15 diodes
(gliding)
–
1
%
–
2
%
Note
1. V
R
is the value at which C
d
= 9 pF.
FEATURES
·
Excellent linearity
·
Excellent matching to 1% DMA
·
Very small plastic SMD package
·
C28: 2.1 pF; ratio 9
·
Low series resistance.
APPLICATIONS
·
Electronic tuning in UHF television
tuners
·
VCO.
DESCRIPTION
The BB149 is a variable capacitance diode,
fabricated in planar technology, and encap-
sulated in the SOD323 very small plastic SMD
package.
The excellent matching performance is
achieved by gliding matching and a direct
matching assembly procedure. The unmatched
type, BB159 has the same specification.
MARKING CODE:
P9
P
1
2
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相關代理商/技術參數 |
參數描述 |
|---|---|
| BB149,115 | 功能描述:變容二極管 TAPE-7 DIO-RFSS RoHS:否 制造商:Skyworks Solutions, Inc. 電容:5.2 pF 反向電壓:10 V 正向連續電流:20 mA 端接類型:SMD/SMT 封裝 / 箱體:SC-79 封裝:Reel |
| BB149,135 | 功能描述:變容二極管 UHF 30V 21.8pF Variable Cap RoHS:否 制造商:Skyworks Solutions, Inc. 電容:5.2 pF 反向電壓:10 V 正向連續電流:20 mA 端接類型:SMD/SMT 封裝 / 箱體:SC-79 封裝:Reel |
| BB149_04 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:UHF variable capacitance diode |
| BB149135 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
| BB149A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:UHF variable capacitance diode |
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