Variable Capacitance Diodes
MA2X334
Silicon epitaxial planar type
For UHF and VHF electronic tuners
I
Features
•
Large capacitance ratio
•
Small series resistance r
D
•
Mini type package, allowing downsizing of equipment and
automatic insertion through the taping package
5°
INDICATES
CATHODE
Unit : mm
1.6
−
0.1
+
0.2
1
2
2.7
−
0.1
3.3
±
0.2
*(3.8
±
0.2)
+
0.2
1.1
−
0.1
I
Absolute Maximum Ratings
T
a
= 25°C
Parameter
Reverse voltage (DC)
Peak reverse voltage
Forward voltage (DC)
Junction temperature
Storage temperature
Symbol
V
R
V
RM
I
F
T
j
T
stg
Rating
30
34
20
150
−55
to
+150
Unit
V
V
mA
°C
°C
+
0.2
0.3
0 to 0.05
5°
*(
): WL type
1 : Anode
2 : Cathode
Mini Type Package (2-pin)
Marking Symbol: 6D
I
Electrical Characteristics
T
a
= 25°C
Parameter
Reverse current (DC)
Diode capacitance
Symbol
I
R
C
D(3V)
C
D(25V)
C
D(10V)
C
D(17V)
Capacitance ratio
Capacitance difference
Diode capacitance deviation
Series resistance
*
C
D(3V)
/C
D(25V)
C
D(17V)
/C
D(25V)
∆C
r
D
C
D(3V)(10V)(17V)(25V)
C
D
= 9 pF, f = 470 MHz
0.38
V
R
= 30 V
V
R
= 3 V, f = 1 MHz
V
R
= 25 V, f = 1 MHz
V
R
= 10 V, f = 1 MHz
V
R
= 17 V, f = 1 MHz
11.233
2.020
4.358
2.567
4.60
0.37
2
0.72
Conditions
Min
Typ
Max
10
12.781
2.367
5.422
3.100
6.15
Unit
nA
pF
pF
pF
pF
pF
%
Ω
Note) 1．
Rated input/output frequency: 470 MHz
2． : r
f
measuring instrument: YHP MODEL 4191A RF IMPEDANCE ANALYZER
*
0.16
−
0.03
+
0.1
0.55
±
0.1
1
MA2X334
C
D
V
R
100
f
=
1 MHz
T
a
=
25°C
120
Variable Capacitance Diodes
I
F
V
F
1.03
C
D
T
a
f
=
1 MHz
50
100
1.02
Diode capacitance C
D
(pF)
30
20
Forward current I
F
(mA)
V
R
=
3 V
80
10
60
25°C
−
40°C
C
D
(T
a
)
C
D
(T
a
=
25°C)
T
a
=
60°C
1.01
1.00
10 V
17 V
25 V
5
3
2
40
0.99
20
0.98
1
0
4
8 12 16 20 24 28 32 36 40
0
0
0.2
0.4
0.6
0.8
1.0
1.2
0.97
0
20
40
60
80
100
Reverse voltage V
R
(V)
Forward voltage V
F
(V)
Ambient temperature T
a
(
°C
)
I
R
T
a
10
2
V
R
=
30 V
Reverse current I
R
(mA)
10
1
10
−1
10
−2
0
20
40
60
80 100 120 140 160
Ambient temperature T
a
(
°C
)
C
D
rank classification
•
MA2X334B
Primary rank classification
C
D(25V)
(pF)
2.030
2.060
2.091
2.123
2.155
2.187
2.220
2.253
2.287
2.321
2.356
Secondary rank classification
C
D(17V)
(pF)
2.580
2.619
2.658
2.698
2.738
2.779
2.821
2.863
2.906
2.950
2.994
3.039
3.085
2
C
D(3V)
(pF)
C
D(10V)
(pF)
11.290
8
11.459
7
11.631
6
11.806
5
11.983
4
12.163
3
12.345
2
12.530
1
12.718
10 9 8 7 6 5 4 3 2 1
4.380
14
4.446
13
4.512
12
4.580
11
4.649
10
4.719
9
4.789
8
4.861
7
4.934
6
5.008
5
5.083
4
5.159
3
5.237
2
5.315
1
5.395
12 11 10 9 8 7 6 5 4 3 2 1
Variable Capacitance Diodes
•
MA2X3340G
Primary rank classification
C
D(25V)
(pF)
2.030
2.060
2.091
2.123
2.155
2.187
2.220
2.253
2.287
2.321
2.356
MA2X334
Secondary rank classification
C
D(17V)
(pF)
2.580
2.619
2.658
2.698
2.738
2.779
2.821
2.863
2.906
2.950
2.994
3.039
3.085
C
D(10V)
(pF)
C
D(3V)
(pF)
11.290
11.459
11.631
11.806
11.983
12.163
12.345
12.530
12.718
10 9 8 7 6 5 4 3 2 1
8
7
6
5
4
3
2
1
4.380
14
4.446
13
4.512
12
4.580
11
4.649
10
4.719
9
4.789
8
4.861
7
4.934
6
5.008
5
5.083
4
5.159
3
5.237
2
5.315
1
5.395
12 11 10 9 8 7 6 5 4 3 2 1
3
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