PANASONIC MA2B345

Variable Capacitance Diodes
MA2B345
Silicon epitaxial planar type
Unit : mm
φ 0.56 max.
For AFC of FM tuner
1
■ Features
24 min.
COLORED BAND
INDICATES
CATHODE
4.5 max.
• High reliability achieved through combination of a planar type
chip and glass sealing structure
• Small package allowing easy mounting
• Small reverse current IR
Parameter
Symbol
Rating
Unit
Reverse voltage (DC)
VR
15
V
Peak reverse voltage
VRM
15
V
Junction temperature
Tj
200
°C
Storage temperature
Tstg
−65 to +200
°C
24 min.
■ Absolute Maximum Ratings Ta = 25°C
2
φ 1.95 max.
1 : Anode
2 : Cathode
JEDEC : DO-35
Body Color : Black
■ Electrical Characteristics Ta = 25°C
Parameter
Symbol
Reverse current (DC)
IR
Conditions
Min
VR = 12 V
VR = 12 V, Ta = 75°C
Terminal capacitance
Ct
VR = 10 V, f = 1 MHz
10
Q
Q
VR = 10 V, f = 50 MHz
40
Typ
Max
Unit
100
nA
1
µA
16
pF

Note) Rated input/output frequency: 100 MHz
■ Cathode Indication
Type No.
MA2B345
Color
Silver
1
MA2B345
Variable Capacitance Diodes
IF  V F
VF  Ta
IR  V R
102
103
1.6
Ta = 150°C
1.4
25°C
Ta = 150°C
1
− 20°C
10−1
10
Forward voltage VF (V)
100°C
10
Reverse current IR (nA)
Forward current IF (mA)
102
100°C
1
25°C
10−1
1.2
1.0
IF = 100 mA
0.8
10 mA
0.6
3 mA
0.4
0.2
10−2
10−2
0
0.2
0.4
0.6
0.8
1.0
1.2
0
4
8
16
20
IR  T a
28
0
−40
32
0
40
32
1
10−1
160
200
IF(surge)  tW
Forward surge current IF(surge) (A)
Terminal capacitance Ct (pF)
10
120
1 000
f = 1 MHz
Ta = 25°C
28
VR = 15 V
12 V
10 V
80
Ambient temperature Ta (°C)
Ct  VR
103
102
24
Reverse voltage VR (V)
Forward voltage VF (V)
Reverse current IR (nA)
12
24
20
16
12
8
Ta = 25°C
IF(surge)
tW
Non repetitive
100
10
1
4
10−2
−40
0
40
80
120
Ambient temperature Ta
2
160
(°C)
200
0
0
4
8
12
16
20
24
28
Reverse voltage VR (V)
32
0.1
0.03
0.1
0.3
1
3
Pulse width tW (ms)
10
30