PANASONIC MA2X338

Variable Capacitance Diodes
MA2X338
Silicon epitaxial planar type
Unit : mm
INDICATES
CATHODE
For CATV tuner
■ Features
2
• Large capacitance ratio
• Small series resistance rD, resulting in obtaining high performance index, Q of a circuit
0.55 ± 0.1
+ 0.2
1.6 − 0.1
1
+ 0.2
2.7 − 0.1
3.3 ± 0.2
*(3.8 ± 0.2)
0.3
5°
Unit
Reverse voltage (DC)
VR
34
V
Peak reverse voltage*
VRM
35
V
Forward current (DC)
IF
20
mA
Junction temperature
Tj
150
°C
Storage temperature
Tstg
−55 to +150
°C
+ 0.1
Rating
0.16 − 0.03
1.1 − 0.1
Symbol
0 to 0.05
Parameter
+ 0.2
■ Absolute Maximum Ratings Ta = 25°C
5°
*(
): WL type
1 : Anode
2 : Cathode
Mini Type Package (2-pin)
Marking Symbol: 6H
Note) * : RL = 10 kΩ
■ Electrical Characteristics Ta = 25°C
Parameter
Reverse current (DC)
Diode capacitance
Capacitance ratio
Diode capacitance deviation
Series
resistance*
Symbol
IR
Conditions
Min
VR = 30 V
Typ
Max
Unit
10
nA
CD(2V)
VR = 2 V, f = 1 MHz
27.13
32.15
pF
CD(25V)
VR = 25 V, f = 1 MHz
2.60
3.15
pF
CD(10V)
VR = 10 V, f = 1 MHz
7.05
9.97
pF
CD(17V)
VR = 17 V, f = 1 MHz
3.48
4.74
pF
CD(2V)/CD(25V)

10
∆C
CD(2V)(10V)(17V)(25V)
2.5
%
rD
CD = 9 pF, f = 470 MHz
0.63
Ω
Note) 1．Rated input/output frequency: 470 MHz
2．* : rf measuring instrument: YHP MODEL 4191A RF IMPEDANCE ANALYZER
1
MA2X338
Variable Capacitance Diodes
CD  VR
f = 1 MHz
Ta = 25°C
Forward current IF (mA)
Diode capacitance CD (pF)
50
30
20
10
5
3
1.03
100
1.02
0
4
8 12 16 20 24 28 32 36 40
Ta = 60°C
− 40°C
25°C
60
40
0
f = 1 MHz
VR = 2 V
80
1.01
10 V
17 V
25 V
1.00
0.99
20
2
1
CD  Ta
IF  V F
120
CD(Ta)
CD(Ta = 25°C)
100
0.98
0
Reverse voltage VR (V)
0.2
0.4
0.6
0.8
1.0
1.2
Forward voltage VF (V)
0.97
0
20
40
60
80
Ambient temperature Ta (°C)
IR  Ta
Reverse current IR (nA)
100
VR = 30 V
10
1
0.1
0.01
0 20 40 60 80 100 120 140 160 180 200
Ambient temperature Ta (°C)
CD rank classification
Secondary rank classification
Primary rank classification
CD(17V) (pF)
2
27.27
27.82
28.38
28.95
29.53
30.13
30.74
31.36
31.99
8
7
6
5
4
3
2
1
3.50
3.57
3.64
3.71
3.78
3.86
3.94
4.02
4.10
4.18
4.26
4.35
4.44
4.53
4.62
4.71
9 8 7 6 5 4 3 2 1
Note: Tracking guarantee range
(Capacitance deviation 2.5%)
CD(10V) (pF)
CD(2V) (pF)
2.62
2.67
2.72
2.77
2.83
2.89
2.95
3.01
3.07
3.13
CD(25V) (pF)
7.09
7.23
7.37
7.52
7.67
7.82
7.98
8.14
8.30
8.47
8.64
8.81
8.99
9.17
9.35
9.54
9.73
9.92
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
100