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Variable Capacitance Diodes
MA2X333
N type GaAs epitaxial planar type
For VCO of a radio For electronic tuning of UHF and VHF TV tuner I Features
* Small series resistance rD and high Q value * Large capacitance ratio during low-voltage operation
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
I Absolute Maximum Ratings Ta = 25C
Parameter Reverse voltage (DC) Forward current (DC) Junction temperature Storage temperature Symbol VR IF Tj Tstg Rating 9 100 125 -55 to +125 Unit V mA C C
1.1 - 0.1
+ 0.2
0.3
0 to 0.05
5
*(
): WL type
1 : Anode 2 : Cathode Mini Type Package (2-pin)
Marking Symbol: 6C
I Electrical Characteristics Ta = 25C
Parameter Reverse current (DC) Reverse voltage (DC) Diode capacitance Symbol IR VR CD(2V) CD(4V) CD(6V) Series resistance* rD VR = 6 V IR = 1 A VR = 2 V, f = 1 MHz VR = 4 V, f = 1 MHz VR = 6 V, f = 1 MHz CD = 9 pF, f = 470 MHz 9 13.5 4.0 2.8 15.5 6.8 4.0 0.25 17.0 7.5 4.5 0.35 Conditions Min Typ Max 100 Unit nA V 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
0.55 0.1
1
MA2X333
IF V F
100 Ta = 25C 100
Variable Capacitance Diodes
IR V R
Ta = 25C
CD VR
100 f = 1 MHz Ta = 25C
50
10
Reverse current IR (nA)
10
Diode capacitance CD (pF)
0 2 4 6 8 10
Forward current IF (mA)
30 20
1
1
10
5 3 2
0.1
0.1
0.01
0.01 0 0.2 0.4 0.6 0.8 1.0
1
0
4
8
12
16
20
Forward voltage VF (V)
Reverse voltage VR (V)
Reverse voltage VR (V)
CD Ta
1.03 f = 1 MHz
1.02 VR = 2 V
CD(Ta) CD(Ta = 25C)
1.01
6V
1.00
0.99
0.98
0.97
0
20
40
60
80
100
Ambient temperature Ta (C)
2

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