1T397 Datasheet, PDF (1/4 Pages) Sony Corporation – Variable Capacitance Diode

Variable Capacitance Diode
1T397
Description
The 1T397 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
• Large capacitance ratio C2/C25=14.5 Min.
C1/C28=21.5 Min.
C25/C28=1.03 Min.
• Small series resistance rs=1.1 Ω Max.
• High reverse voltage
VR=34 V
Structure
Silicon epitaxial planar-type diode
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
Electrical Characteristics
Item
Reverse current
Reverse voltage
Diode capacitance
Capacitance ratio
Series resistance
Capacitance deviation in a
matching group
Symbol
IR
VR
C2
C25
C2/C25
C1/C28
C25/C28
rs
Conditions
VR=28 V
IR=1 µA
VR=2 V, f=1 MHz
VR=25 V, f=1 MHz
CD=14 pF, f=470 MHz
∆C VR=1 to 28 V
(Ta=25 °C)
Min. Typ. Max. Unit
10
nA
34
V
42.9
51.0 pF
2.60
3.03 pF
14.5 15.5
21.5
1.03
1.1
Ω
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.
—1—
E94610B83-TE