1T387 Datasheet, PDF (1/4 Pages) Sony Corporation – Variable Capacitance Diode

Variable Capacitance Diode
1T387
Description
The 1T387 is a variable capacitance diode
designed for electronic tuning of BS and CS tuners
using a super miniature package (SMVC).
M-235
Features
• Super miniature package
• Low series resistance: 1.5Ω Max. (f = 470MHz)
• Large capacitance ratio: 14.6 Typ. (C1/C25)
• Small leakage current: 10nA Max. (VR = 25V)
• Capacitance deviation in a matching group: within 6%
Applications
Electronic tuning of BS and CS tuners
Structure
Silicon epitaxial planar type diode
Absolute Maximum Ratings (Ta = 25°C)
• Reverse voltage
VR
30
V
• Peak reverse voltage VRM
35
V
(RL ≥ 10kΩ)
• Operating temperature Topr –20 to +75 °C
• Storage temperature Tstg –65 to +150 °C
Electrical Characteristics
(Ta = 25°C)
Item
Symbol
Conditions
Min. Typ. Max. Unit
Reverse voltage
VR
IR = 1µA
30.0
V
Reverse current
IR
VR = 25V
10.0 nA
Diode capacitance
C1
VR = 1V, f = 1MHz
7.84
C25
VR = 25V, f = 1MHz
0.54
9.44 pF
0.64 pF
Capacitance ratio
C1/C25
12.2 14.6
Series resistance
rs
VR = 5V, f = 470MHz
1.30 1.50 Ω
Capacitance deviation in a matching group ∆C
VR = 1 to 25V, f = 1MHz
6.0 %
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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E00421-PS