1T407
Variable Capacitance Diode
Description
M-290
The 1T407 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
• Low series resistance: 1.1 Ω Max. (f=470 MHz)
• Large capacitance ratio: 15.5 Typ.
(C2/C25)
(C1/C28)
(C25/C28)
Absolute Maximum Ratings (Ta=25 °C)
• Reverse voltage 34
• Operating temperature Topr –20 to +75 °C
• Storage temperature Tstg –65 to +150 °C
21.5 Min.
1.03 Min.
VR
V
• 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
Structure
Silicon epitaxial planar type diode
Electrical Characteristics
(Ta=25 °C)
Item
Symbol
Conditions
VR=28 V
Min.
Typ.
15.5
Max.
10
Unit
Reverse current
Reverse voltage
IR
VR
nA
V
IR=1 µA
34
C2
VR=2 V, f=1 MHz
VR=25 V, f=1 MHz
42.86
2.56
14.5
21.5
1.03
50.96
2.99
pF
pF
Diode capacitance
Capacitance ratio
C25
C2/C25
C1/C28
C25/C/28
rs
Series resistance
Capacitance
CD=14 pF, f=470 MHz
VR=1 to 28 V, f= MHz
1.1
2
Ω
deviation in a
∆C
%
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.
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E95920-TE
