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Variable Capacitance Diodes
MA2X329
Silicon epitaxial planar type
For VHF electronic tuners I Features
* Large capacitance ratio * Small series resistance rD * 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
0 to 0.05
Reverse voltage (DC) Peak reverse voltage Forward current (DC) Junction temperature Storage temperature
VR VRM IF Tj Tstg
32 34 20 150 -55 to +150
V V mA C C
5
*(
): WL type
1 : Anode 2 : Cathode Mini Type Package (2-pin)
Marking Symbol: 6B
I Electrical Characteristics Ta = 25C
Parameter Reverse current (DC) Diode capacitance Symbol IR CD(1V) CD(3V) CD(25V) CD(10V) CD(17V) Capacitance ratio Diode capacitance deviation Series resistance* CD(3V)/CD(25V) C rD CD(3V)(10V)(17V)(25V) CD = 9 pF, f = 470 MHz VR = 30 V VR = 1 V, f = 1 MHz VR = 3 V, f = 1 MHz VR = 25 V, f = 1 MHz VR = 10 V, f = 1 MHz VR = 17 V, f = 1 MHz 25.87 2.58 9.15 3.28 9 3 1.6 42 32.64 3.20 12.44 4.46 Conditions Min Typ Max 10 Unit nA pF pF pF pF pF %
Note) 1 Rated input/output frequency: 470 MHz 2 * : rf measuring instrument: YHP MODEL 4191A RF IMPEDANCE ANALYZER
0.16 - 0.03
+ 0.1
Parameter
Symbol
Rating
Unit
1.1 - 0.1
I Absolute Maximum Ratings Ta = 25C
+ 0.2
0.3
0.55 0.1
1
MA2X329
CD VR
100 f = 1 MHz Ta = 25C 120
Variable Capacitance Diodes
IF V F
1.03
CD Ta
f = 1 MHz VR = 3 V 10 V 17 V 25 V
50
100
1.02
Diode capacitance CD (pF)
30 20
Forward current IF (mA)
10
60
25C
- 40C
CD(Ta) CD(Ta = 25C)
1.2
80
Ta = 60C
1.01
1.00
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
0.97
0
20
40
60
80
100
Reverse voltage VR (V)
Forward voltage VF (V)
Reverse current Ta (C)
IR T a
100 VR = 33 V
Reverse current IR (nA)
10
1
0.1
0.01
0
20
40
60
80 100 120 140 160
Reverse current Ta (C)
CD rank classification Primary rank classification
CD(25V) (pF)
3.30 3.38 3.46 3.55 3.64
Secondary rank classification
CD(17V) (pF)
3.73 3.82 3.92 4.02 4.12 4.22 4.33 4.44
2.60
2.67
2.74
2.81
2.88
2.95
3.02
3.10
3.18
26.00 26.65 27.32 28.00
CD(3V) (pF)
8 9 8 7 6
7
6
5
4
3
2
1
9.20 9.43 9.67 9.91
CD(10V) (pF)
12 11 10 9 12 11 10 9 8 7 6 5 4 3 2 1
8
7
6
5
4
3
2
1
28.70 29.42 30.16 30.91 31.68 32.47
5 4 3 2 1
10.16 10.41 10.67 10.94 11.21 11.49 11.78 12.07 12.37
2

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