1
Varistors
MA2C029
Series
Silicon epitaxial planar type variable resistor
For temperature and reduced voltage compensation
I Features
High reliability achieved through combination of a planar type
chip and glass sealing structure
Easy mounting because of employing DO-35 (DHD) envelope
Extremely small reverse current I
R
Large power dissipation
Wide forward voltage V
F
range
I Absolute Maximum Ratings T
a
= 25
C
Unit : mm
1
Cathode
2
Anode
JEDEC
DO-34
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Reverse current
MA2C0290A/B
I
R
V
R
= 6 V
10
A
(DC)
MA2C029WA/WB
V
R
= 6 V
1
MA2C029TA/TB
MA2C029QA/QB
Forward voltage
MA2C0290A
V
F1
I
F
= 1.5 mA
0.56
0.61
V
(DC)
MA2C0290B
0.59
0.64
MA2C029WA/WB
V
F1
= 10 A
0.77
MA2C029TA/TB
1.15
MA2C029QA/QB
1.60
Forward voltage
MA2C0290A/B
V
F2
I
F
= 50 mA
1.1
V
(DC)
MA2C029WA
I
F
= 3 mA
1.18
1.28
MA2C029WB
1.26
1.36
MA2C029TA
1.76
1.92
MA2C029TB
1.88
2.04
MA2C029QA
2.20
2.40
MA2C029QB
2.34
2.54
Temperature
MA2C0290A/B
-V
F
/
T
I
F
= 1.5 mA (T
j
= 25C to +150C)
2.0
mV/
C
coefficient of
MA2C029WA/WB
I
F
= 3 mA (T
j
= 25C to +150C)
4.6
forward voltage
MA2C029TA/TB
6.5
MA2C029QA/QB
8.8
I Electrical Characteristics T
a
= 25
C
Type No.
MA2C0290A
MA2C0290B
MA2C029WA MA2C029WB
MA2C029TA
*
MA2C029TB
*
MA2C029QA
*
MA2C029QB
*
Color
Red
Blue
Light Blue
Brown
Yellow
Blue
Green
Brown
I Cathode Indication
Parameter
Symbol
Rating
Unit
Reverse voltage (DC)
V
R
6
V
Forward
MA2C0290A/B
I
FM
150
mA
current (DC) MA2C029WA/WB
100
MA2C029TA/TB
70
MA2C029QA/QB
50
Power dissipation
P
tot
150
mW
Junction temperature
T
j
150
C
Storage temperature
T
stg
-55 to +150
C
Note) * : Body Color ; Black
0.45 max.
1.75 max.
13 min.
0.2 max.
0.2 max.
13 min.
2.2
0.3
COLORED BAND
INDICATES
CATHODE
2
1
Note) Rated input/output frequency: 100 MHz
Varistors
2
Characteristics charts of MA2C029
MA2C029 Series
I
F
V
F
V
F
T
a
I
F
V
F
I
F
V
F
V
F
T
a
V
F
T
a
I
F
V
F
V
F
T
a
0
0.2
0.4
0.6
0.8
1.0
-40
0
40
80
120
160
Ambient temperature T
a
(
C)
Forward voltage V
F
(V
)
MA2C0290A
MA2C0290B
I
F
= 1.5 mA
0.01
0
0.2
0.4
0.6
0.8
1.0
0.1
1
10
100
1 000
Forward voltage V
F
(V)
Forward current I
F
(mA
)
MA2C0290A
MA2C0290B
T
a
= 25C
0.01
0
0.8
1.6
2.4
4.0
3.2
4.8
0.1
1
10
100
Forward voltage V
F
(V)
Forward current I
F
(mA
)
T
a
= 150
C
25
C
20
C
100
C
MA2C029QA
MA2C029QB
0.01
0
0.4
0.8
1.2
1.6
2.0
2.4
0.1
1
10
100
1 000
Forward voltage V
F
(V)
Forward current I
F
(mA
)
MA2C029WA
MA2C029WB
T
a
= 25C
0
0.4
0.8
1.2
1.6
2.0
-40
0
40
80
120
160
Ambient temperature T
a
(
C)
Forward voltage V
F
(V
)
MA2C029WA
MA2C029WB
I
F
= 3 mA
0
1
2
3
4
5
-40
0
40
80
120
160
200
Ambient temperature T
a
(
C)
Forward voltage V
F
(V
)
I
F
= 50 mA
3 mA
0.01 mA
MA2C029QA
MA2C029QB
0.01
0
1
2
3
4
0.1
1
10
100
Forward voltage V
F
(V)
Forward current I
F
(mA
)
T
a
= 25C
MA2C029TA
MA2C029TB
0
0.5
1.0
1.5
2.0
2.5
-40
0
40
80
120
160
Ambient temperature T
a
(
C)
Forward voltage V
F
(V
)
MA2C029TB
MA2C029TA
I
F
= 3 mA
Characteristics charts of MA2C029W
Characteristics charts of MA2C029Q
Characteristics charts of MA2C029T
PDF 
ZIP