1
Publication date: January 2002
SKB00003BED
Varistors
MA3X028 Series
(MA28 Series)
Silicon epitaxial planar type variable resistor
For temperature and reduced voltage compensation
s Features
Mini type package
Extremely small reverse current I
R
High reliability with planar structure
Wide forward voltage V
F
range
s Absolute Maximum Ratings T
a
= 25
C
Unit: mm
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Reverse current (DC)
I
R
V
R
=
6 V
1.0
A
Forward voltage MA3X028WA/WB
V
F1
I
F
=
10
A
0.77
V
(DC)
MA3X028TA
1.15
Forward voltage MA3X0280A
V
F2
I
F
=
1.5 mA
0.56
0.61
V
(DC)
MA3X0280B
0.59
0.64
MA3X028WA
I
F
=
3 mA
1.18
1.28
MA3X028WB
1.26
1.36
MA3X028TA
1.76
1.92
MA3X028TB
1.88
2.04
Temperature
MA3X0280A/B
-
V
F
/
T
I
F
=
3 mA
2.0
mV/
C
coefficient of
MA3X028WA
4.6
forward voltage
MA3X028TA
6.5
s Electrical Characteristics T
a
=
25
C
Parameter
Symbol
Rating
Unit
Reverse voltage (DC)
V
R
6
V
Forward
MA3X0280A/B
I
FM
150
mA
current (DC) MA3X028WA/WB
100
MA3X028TA/TB
70
Power dissipation
P
D
150
mW
Junction temperature
T
j
125
C
Storage temperature
T
stg
-
55 to
+
125
C
0.40
+0.10
0.05
(0.65)
1.50
+0.25 0.05
2.8
+0.2 0.3
2
1
3
(0.95) (0.95)
1.9
0.1
2.90
+0.20
0.05
0.16
+0.10
0.06
0.4
0.2
5
10
0 to 0.1
1.1
+0.2 0.1
1.1
+0.3 0.1
Marking Symbol
MA3X0280A
: MD
MA3X0280B
: ME
MA3X028WA
: MF
MA3X028WB
: MK
MA3X028TA
: ML
MA3X028TB
: MM
1: Anode
2: NC
3: Cathode
EIAJ: SC-59
Mini3-G1 Package
Note) Rated input/output frequency: 100 MHz
Note) The part numbers in the parenthesis show conventional part number.
Please read the following notes before using the datasheets
A. These materials are intended as a reference to assist customers with the selection of Panasonic
semiconductor products best suited to their applications.
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2001 MAR
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