1
Variable Capacitance Diodes
MA2X339
Silicon epitaxial planar type
For UHF and VHF electronic tuners
I Features
Large capacitance ratio
Small series resistance r
D
I Absolute Maximum Ratings T
a
= 25
C
Unit : mm
Marking Symbol: 6N
1 : Anode
2 : Cathode
Mini Type Package (2-pin)
1
2
3.3
0.2
*(3.8
0.2)
2.7
+ 0.2
- 0.1
1.6
+
0.2
-
0.1
1.1
+
0.2
-
0.1
0.16
+
0.1
-
0.03
0.55
0.1
INDICATES
CATHODE
0.3
0 to 0.05
5
5
*( ): WL type
Parameter
Symbol
Rating
Unit
Reverse voltage (DC)
V
R
32
V
Peak reverse voltage
*
V
RM
34
V
Forward current (DC)
I
F
20
mA
Junction temperature
T
j
150
C
Storage temperature
T
stg
-55 to +150
C
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Reverse current (DC)
I
R
V
R
= 30 V
10
nA
Diode capacitance
C
D(2V)
V
R
= 2 V, f = 1 MHz
14.220
15.473
pF
C
D(25V)
V
R
= 25 V, f = 1 MHz
2.132
2.321
pF
C
D(10V)
V
R
= 10 V, f = 1 MHz
5.307
6.128
pF
C
D(17V)
V
R
= 17 V, f = 1 MHz
2.909
3.411
pF
Capacitance ratio
C
D(2V)
/C
D(25V)
6.22
Capacitance difference
C
D(10V)
/C
D(17V)
1.70
1.96
Diode capacitance deviation
C
C
D(2V)(10V)(17V)(25V)
2
%
Series resistance
*
r
D
C
D
= 9 pF, f = 470 MHz
0.45
I Electrical Characteristics T
a
= 25
C
Note) 1
Rated input/output frequency: 470 MHz
2
* : r
f
measuring instrument: YHP MODEL 4191A RF IMPEDANCE ANALYZER
Note) * : R
L
= 2.2 k
Variable Capacitance Diodes
2
MA3X339
C
D
V
R
I
R
T
a
C
D
T
a
I
F
V
F
5
5
4
3
2
1
4
3
2
1
2.143
14.291
14.505
14.723
14.944
15.168
15.396
2.175
2.208
2.241
2.275
2.309
C
D(25V)
(pF)
C
D(2V)
(pF)
Note: Tracking guarantee range
(Capacitance deviation 2.0%)
10
2.924
5.334
5.414
5.495
5.577
5.661
5.746
5.832
5.919
6.008
6.098
2.968
3.013
3.058
3.104
3.151
3.198
3.246
3.295
3.344
3.394
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
C
D(17V)
(pF)
C
D(10V)
(pF)
1
100
10
2
20
3
30
5
50
0
8
16
24
32
4
12
20
28
36 40
Reverse voltage V
R
(V)
Diode capacitance C
D
(pF
)
f
= 1 MHz
T
a
= 25C
0
120
100
80
60
40
20
0
0.2
0.4
0.6
0.8
1.0
1.2
Forward voltage V
F
(V)
Forward current I
F
(mA
)
T
a
= 60C
25
C
- 40C
0.97
0
20
40
60
80
100
0.98
0.99
1.00
1.01
1.02
1.03
Ambient temperature T
a
(
C)
C
D
(T
a
=
25
C
)
C
D
(T
a
)
V
R
= 2 V
10 V
17 V
25 V
f
= 1 MHz
0.01
0
40
80
120
160
200
0.1
1
10
100
Ambient temperature T
a
(
C)
Reverse current I
R
(nA
)
V
R
= 30 V
C
D
rank classification
Secondary rank classification
Primary rank classification
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