Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

BB178_2015 Datasheet(PDF) 2 Page - Quanzhou Jinmei Electronic Co.,Ltd.

Part No. BB178_2015
Description  VHF variable capacitance diode
Download  8 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  JMNIC [Quanzhou Jinmei Electronic Co.,Ltd.]
Homepage  http://www.jmnic.com
Logo 

BB178_2015 Datasheet(HTML) 2 Page - Quanzhou Jinmei Electronic Co.,Ltd.

   
Zoom Inzoom in Zoom Outzoom out
 2 / 8 page
background image
1997 Nov 13
2
Philips Semiconductors
Product specification
VHF variable capacitance diode
BB178
FEATURES
• Excellent linearity
• Excellent matching to 2% DMA
• Ultra small plastic SMD package
• C28: 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 performance is
achieved by gliding matching and a
direct matching assembly procedure.
PINNING
PIN
DESCRIPTION
1
cathode
2
anode
Fig.1 Simplified outline
(SOD523; SC-79) and symbol.
handbook, 2 columns
12


MBK441
Marking code: 8.
Orientation of marking code as shown.
Cathode side indicated by a bar.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
ELECTRICAL CHARACTERISTICS
Tj =25 °C unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VR
continuous reverse voltage
32
V
VRM
peak reverse voltage
in series with a 10 k
Ω resistor
35
V
IF
continuous forward current
20
mA
Tstg
storage temperature
−55
+150
°C
Tj
operating junction temperature
−55
+125
°C
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
IR
reverse current
VR = 30 V; see Fig.3
−−
10
nA
VR = 30 V; Tj =85 °C; see Fig.3
−−
200
nA
rs
diode series resistance
f = 100 MHz;
VR is the value at which Cd =30pF
0.65
0.8
Cd
diode capacitance
VR = 1 V; f = 1 MHz; see Figs 2 and 4
34.65
42.35
pF
VR = 28 V; f = 1 MHz; see Figs 2 and 4 2.361
2.754
pF
capacitance ratio
f = 1 MHz
1.3
capacitance ratio
f = 1 MHz
13.5
−−
capacitance ratio
f = 1 MHz
1.08
capacitance matching
VR = 1 to 28 V; in a sequence of 15
diodes (gliding)
−−
2%
C
d1V
()
C
d2V
()
------------------
C
d1V
()
C
d28V
()
--------------------
C
d25V
()
C
d28V
()
--------------------
C
d
C
d
----------


Html Pages

1  2  3  4  5  6  7  8 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn