1T404A Datasheet, PDF (1/4 Pages) Sony Corporation – Variable Capacitance Diode

Variable Capacitance Diode
1T404A
Description
The 1T404A 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 0.75Ω Max. (f = 470MHz)
• Large capacitance ratio 11.5 Typ. (C2/C25)
• Small leakage current 10nA Max. (VR = 28V)
Absolute Maximum Ratings (Ta = 25°C)
• Capacitance deviation in a matching group within 2%
• Reverse voltage
VR
34
V
Applications
Electronic tuning of wide-band CATV tuners
• Operating temperature Topr –20 to +75 °C
• Storage temperature Tstg –65 to +150 °C
Structure
Silicon epitaxial planar type diode
Electrical Characteristics
Item
Reverse voltage
Reverse current
Diode capacitance
Capacitance ratio
Series resistance
Capacitance deviation in a matching group
(Ta = 25°C)
Symbol
VR
IR
C2
C25
C2/C25
C25/C28
rs
∆C
Conditions
Min. Typ. Max. Unit
IR = 1µA
34.0
V
VR = 28V
10.0 nA
VR = 2V, f = 1MHz
29.5
33.5 pF
VR = 25V, f = 1MHz
2.60
2.90 pF
11.0 11.5
1.03
CD = 14pF, f = 470MHz
0.75 Ω
VR = 2 to 25V, f = 1MHz
2.0 %
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.
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E99805-PS