Variable Capacitance Diode
Description
The 1T368A is a variable capacitance diode designed
for electronic tuning of wide-band CATV tuners using
a super miniature package.
Features
Super miniature package
Low series resistance:
0.75
Max. (f = 470MHz)
Large capacitance ratio: 11.5 Typ.
(C
2
/C
25
)
Small leakage current:
10nA Max.
(V
R
= 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 = 25C)
Reverse voltage
V
R
34
V
Operating temperature
Topr
20 to +75
C
Storage temperature
Tstg
65 to +150
C
1
E99804-PS
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.
1T368A
M-235
Electrical Characteristics
(Ta = 25C)
Reverse voltage
Reverse current
Diode capacitance
Capacitance ratio
Series resistance
Capacitance deviation in a matching group
V
R
I
R
C
2
C
25
C
2
/C
25
C
25
/C
28
rs
C
I
R
= 1A
V
R
= 28V
V
R
= 2V, f = 1MHz
V
R
= 25V, f = 1MHz
C
D
= 14pF, f = 470MHz
V
R
= 2 to 25V, f = 1MHz
34.0
29.54
2.64
11.0
1.03
11.5
10.0
33.54
2.94
0.75
2.0
V
nA
pF
pF
%
Unit
Max.
Typ.
Min.
Conditions
Symbol
Item
2
1T368A
1
2
5
10
20
50
1
2
5
10
20
50
100
Diode capacitance vs. Reverse voltage
V
R
Reverse voltage [V]
C
D
i
o
d
e
c
a
p
a
c
i
t
a
n
c
e
[
p
F
]
Ta = 25C
100
1
10
100
Reverse current vs. Ambient temperature
20
0
20
40
60
80
Ta Ambient temperature [C]
I
R
R
e
v
e
r
s
e
c
u
r
r
e
n
t
[
p
A
]
V
R
= 28V
0.60
0.80
Forward voltage vs. Ambient temperature
20
0
20
40
60
80
Ta Ambient temperature [C]
V
F
F
o
r
w
a
r
d
v
o
l
t
a
g
e
[
V
]
I
F
= 1mA
0.70
0.50
Ta Ambient temperature [C]
40
50
Reverse voltage vs. Ambient temperature
20
0
20
40
60
80
V
R
R
e
v
e
r
s
e
v
o
l
t
a
g
e
[
V
]
45
35
I
R
= 10A
3
1T368A
1.01
1.03
Diode capacitance vs. Ambient temperature
20
0
20
40
60
80
Ta Ambient temperature [C]
C
(
T
a
)
/
C
(
2
5
C
)
D
i
o
d
e
c
a
p
a
c
i
t
a
n
c
e
V
R
= 1V
1.02
1.00
0.99
0.98
V
R
= 2V
V
R
= 7V
V
R
= 25V
V
R
= 15V
1
100
Reverse current vs. Reverse voltage
1
3
10
30
V
R
Reverse voltage [V]
I
R
R
e
v
e
r
s
e
c
u
r
r
e
n
t
[
p
A
]
10
0.1
Ta = 80C
Ta = 60C
Ta = 25C
1000
Temperature coefficient of diode capacitance
1
2
5
10
V
R
Reverse voltage [V]
T
e
m
p
e
r
a
t
u
r
e
c
o
e
f
f
i
c
i
e
n
t
[
p
p
m
/
C
]
50
20
50
500
200
100
4
1T368A
SONY CODE
EIAJ CODE
JEDEC CODE
PACKAGE WEIGHT
M-235
1.25
+ 0.2
0.1
0.3
+ 0.1
0.05
1
.
7
0
.
1
2
.
5
0
.
2
1
2
0.3
+ 0.1
0.05
0.9 0.1
0.2
0 0.05
0 to 10
0.11
+ 0.1
0.06
M-235
0.1g
NOTE: Dimension "
" does not include mold protrusion.
Package Outline
Unit: mm
Marking
2
68
B
1
CATHODE MARK
Notes
1) B: Lot No. (Year and Month of manufacture)
Year; Last one digit
Month; A, B, C (for Oct. to Dec.)
1 to 9 (for Jan. to Sept.)
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