1T404 查看數據表（PDF） - Sony Semiconductor
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1T404 Datasheet PDF : 4 Pages
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Variable Capacitance Diode
1T404
Description
The 1T404 is a variable capacitance diode
designed for electronic tuning of wide-band CATV
tuners using a super-small-miniature flat package
(SSVC).
M-290
Features
• Super-small-miniature flat package
• Low series resistance: 0.75 Ω Max. (f=470 MHz)
• Large capacitance ratio: 11.5 Typ. (C2/C25)
• Small leakage current: 10 nA Max. (VR=28 V)
• Capacitance deviation in a matching group:
within 2 %
Applications
Electronic tuning of wide-band CATV tuners
Absolute Maximum Ratings (Ta=25 °C)
• Reverse voltage
VR
34
V
• Operating temperature Topr –20 to +75 °C
• Storage temperature Tstg –65 to +150 °C
Structure
Silicon epitaxial planar type diode
Electrical Characteristics
(Ta=25 °C)
Item
Symbol
Conditions
Min.
Typ.
Max.
Unit
Reverse current
IR
VR=28 V
10
nA
C2
VR=2 V, f=1 MHz
Diode capacitance
C25 VR=25 V, f=1 MHz
29.36
2.49
34.26
pF
2.89
pF
Capacitance ratio C2/C25
11.0
11.5
Series resistance
rs
CD=14 pF, f=470 MHz
0.75
Ω
Capacitance
deviation in a
∆C VR=2 to 25 V, f=1 MHz
2
%
matching group
Sony 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 patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E95917-TE
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