1T399 Datasheet, PDF (1/4 Pages) Sony Corporation – Variable Capacitance Diode

Variable Capacitance Diode
1T399
Description
The 1T399 is a variable capacitance diode
designed for the electronic tuning of wide-band
CATV tuners, and it has a super miniature package.
M-235
Features
• Super miniature package
• Small series resistance 0.75 Ω Max. (f=470 MHz)
• Large capacitance ratio 11.7 Typ. (C2/C25)
18.0 Typ. (C1/C28)
• Small leak 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
Item
Reverse current
Diode capacitance
Capacitance ratio
Series resistance
Capacitance deviation in a
matching group
Symbol
IR
C2
C25
C2/C25
C25/C28
rs
Conditions
VR=28 V
VR=2 V, f=1 MHz
VR=25 V, f=1 MHz
CD=14 pF, f=470 MHz
∆C VR=2 to 25 V, f=1 MHz
(Ta=25 °C)
Min. Typ. Max. Unit
10
nA
29.50
35.50 pF
2.53
2.93 pF
11.0 11.7
1.03
0.75
Ω
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.
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E97454A82-TE