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PDF 1T408 Data sheet ( Hoja de datos )

Número de pieza 1T408
Descripción Variable Capacitance Diode
Fabricantes Sony Corporation 
Logotipo Sony Corporation Logotipo



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Variable Capacitance Diode
Description
The 1T408 is a variable capacitance diode designed
for electronic tuning of wide-band CATV tuners using
a super-small-miniature flat package (SSVC).
Features
Super-small-miniature flat package
Small series resistance 0.75Max. (f = 470MHz)
Large capacitance ratio 11.7 Typ. (C2/C25)
18.0 Typ. (C1/C28)
Small leakage current 10nA Max. (VR = 28V)
Capacitance deviation in a matching group: within 2%
Applications
Electronic tuning of wide-band CATV tuners
Structure
Silicon epitaxial planar-type diode
Absolute Maximum Ratings (Ta = 25°C)
Reverse voltage
VR
34
Operating temperature Topr –20 to +75
Storage temperature Tstg –65 to +150
V
°C
°C
Electrical Characteristics
Item
Reverse current
Diode capacitance
Capacitance ratio
Series resistance
Capacitance deviation
in a matching group
Symbol
IR
C2
C25
C2/C25
C25/C28
rs
C
Conditions
VR = 28V
VR = 2V, f = 1MHz
VR = 25V, f = 1MHz
CD = 14pF, f = 470MHz
VR = 2 to 25V, f = 1MHz
1T408
M-290
(Ta = 25°C)
Min. Typ. Max. Unit
10 nA
29.46
35.46 pF
2.49 2.89 pF
11.0 11.7
1.03
0.75
2%
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–
E97522-PS

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