E1W404 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – Variable Capacitance Diode

TWPEC
1W404
Variable Capacitance Diode
Description
The 1W404 is a variable capacitance diode contained
for electronic tuning of wide-band CATV tuners using a
super-small-miniature flat package (SSVC).
Features
．Super-small-miniature flat package
．Low series resistance
0.65Ω Max (ｆ=470MHz)
．Large capacitance ratio 11.5 Typ (C2/C25)
．Small leakage current 10nA Max (VR=28V)
．Capacitance deviation within ２％
Absolute Maximum Ratings (Ta=25℃)
．Reverse voltage
ＶＲ 34
Ｖ
．Operating temperature Topr -20～+75 ℃
Applications
．Storage temperature Tstg -65～+150 ℃
Electronic tuning of wide-band CATV tuners
Structure
Silicon epitaxial planar type diode
Electrical Characteristics
(Ta=25℃)
Item
Symbol
Conditions
Min. Typ. Max. Unit
Reverse voltage
ＶR IR=1μA
34
V
Reverse current
IR
VR=28V
10
nA
Diode capacitance
ï¼£2 VR=2V, f=1MHz
ï¼£25 VR=25V, f=1MHz
29.50
2.60
33.50 pF
2.90
pF
Capacitance ratio
ï¼£2/ï¼£25
ï¼£25/ï¼£28
11.0
11.5
1.03
CD=14pF, f=470MHz
Series resistance
rs Tester：4191A
Tester：4291B
0.58
0.65
Ω
0.61
Capacitance deviation in a
matching group
ΔＣ VR=2～25V, f=1MHz
2.0
%
△C：The capacitance deviation of continuous 20 pcs of 1W404 is ranged within 2% in any
place of the taping package.
TWPEC reserves the right to change products and specifications without prior notice. This information does not
convey any license by any implication or otherwise under any patens or other right. Application circuits shown,
if any, are typical examples illustrating the operation of the devices. TWPEC cannot assume responsibility for
any problems arising out of the use of these circuits.
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