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Variable Capacitance Diodes
MA2C346
Silicon epitaxial planar type
Unit : mm
For AFC of FM tuner I Features
* High reliability achieved through combination of a planar type chip and glass sealing structure * Small package allowing easy mounting * Small reverse current IR
COLORED BAND INDICATES CATHODE
0.45 max. 1
0.2 max. 13 min.
Parameter Reverse voltage (DC) Peak reverse voltage Junction temperature Storage temperature
Symbol VR VRM Tj Tstg
Rating 15 15 200 -65 to +200
Unit
2
V V C C
1.75 max.
1 : Anode 2 : Cathode JEDEC : DO-34
Body Color : Light Green
I Electrical Characteristics Ta = 25C
Parameter Reverse current (DC) Symbol IR Ct Q VR = 12 V VR = 12 V, Ta = 75C Terminal capacitance Q VR = 10 V, f = 1 MHz VR = 10 V, f = 50 MHz 10 40 Conditions Min Typ Max 100 1 16 Unit nA A pF
Note) Rated input/output frequency: 100 MHz
I Cathode Indication
Type No. Color MA2C346 Silver
13 min.
I Absolute Maximum Ratings Ta = 25C
0.2 max.
2.2 0.3
1
MA2C346
IF V F
103 102 Ta = 150C 102
Variable Capacitance Diodes
IR V R
1.6 1.4
VF Ta
Forward current IF (mA)
Reverse current IR (nA)
Forward voltage VF (V)
10 100C 1
1.2 1.0 IF = 100 mA 0.8 0.6 0.4 0.2 10 mA 3 mA
10
100C
25C
1
Ta = 150C
- 20C
10-1
10-1
25C
10-2
0
0.2
0.4
0.6
0.8
1.0
1.2
10-2
0
4
8
12
16
20
24
0 -40
0
40
80
120
160
200
Forward voltage VF (V)
Reverse voltage VR (V)
Ambient temperature Ta (C)
IR Ta
103
Ct VR
40 35
IF(surge) tW
Forward surge current IF(surge) (A)
f = 1 MHz Ta = 25C
103 Ta = 25C IF(surge) tW Non repetitive
Terminal capacitance Ct (pF)
102
Reverse current IR (nA)
VR = 15 V 12 V 10 V
30 25 20 15 10 5
102
10
10
1
1
10-1
10-2 -40
0
40
80
120
160
200
0
0
4
8
12
16
20
24
28
32
10-1 0.03
0.1
0.3
1
3
10
30
Ambient temperature Ta (C)
Reverse voltage VR (V)
Pulse width tW (ms)
2

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