Panasonic MA2B345 Datasheet
Variable Capacitance Diodes
24 min.4.5 max.24 min.
φ 0.56 max.
φ 1.95 max.
COLORED BAND
INDICATES
CATHODE
1
2
MA2B345
Silicon epitaxial planar type
For AFC of FM tuner
■ Features
•
High reliability achieved through combination of a planar type
chip and glass sealing structure
•
Small package allowing easy mounting
•
Small reverse current I
■ Absolute Maximum Ratings Ta = 25°C
Parameter Symbol Rating Unit
Reverse voltage (DC) V
Peak reverse voltage V
Junction temperature T
Storage temperature T
R
R
RM
j
stg
15 V
15 V
200 °C
−65 to +200 °C
Unit : mm
1 : Anode
2 : Cathode
JEDEC : DO-35
■ Electrical Characteristics Ta = 25°C
Parameter Symbol Conditions Min Typ Max Unit
Reverse current (DC) I
Terminal capacitance C
QQV
Note) Rated input/output frequency: 100 MHz
■ Cathode Indication
Type No. MA2B345
Color Silver
R
VR = 12 V 100 nA
VR = 12 V, Ta = 75°C1µA
VR = 10 V, f = 1 MHz 10 16 pF
t
= 10 V, f = 50 MHz 40
R
Body Color : Black
1
MA2B345
Variable Capacitance Diodes
IF V
3
10
2
10
)
mA
(
F
10
Ta = 150°C − 20°C
1
Forward current I
−1
10
−2
10
0 0.2 0.4 0.6 0.8 1.0 1.2
F
Forward voltage VF (V
IR T
3
10
2
10
)
nA
(
R
10
1
Reverse current I
−1
10
−2
10
−40 0 40 80 120 160 200
a
Ambient temperature Ta (°C
25°C100°C
)
VR = 15 V
12 V
10 V
IR V
Ct V
R
R
f = 1 MHz
T
= 25°C
a
1.6
1.4
)
1.2
V
(
F
1.0
0.8
0.6
0.4
Forward voltage V
0.2
0
−40 0 40 80 120 160 200
)
1 000
)
A
(
100
F(surge)
10
1
Forward surge current I
0.1
0.03
)
2
10
Ta = 150°C
)
10
nA
(
R
100°C
1
25°C
−1
10
Reverse current I
−2
10
0 8 20 28 324121624
Reverse voltage VR (V
32
28
)
pF
24
(
t
20
16
12
8
Terminal capacitance C
4
0
81624324 122028
)
0
Reverse voltage VR (V
VF T
a
IF = 100 mA
10 mA
3 mA
Ambient temperature Ta (°C
I
t
F(surge)
0.3 3 301010.1
Pulse width tW (ms
W
Ta = 25°C
I
F(surge)
t
W
Non repetitive
)
)
2
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