Panasonic MA2B0270A Silicon epitaxial planar type variable resistor Datasheet

Varistors
MA2B027
Series
Silicon epitaxial planar type variable resistor
For temperature and reduced voltage compensation
Unit : mm
φ 0.56 max.
■ 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 IR
• Large power dissipation
• Wide forward voltage VF range
1
4.5 max.
24 min.
COLORED BAND
INDICATES
CATHODE
Symbol
Rating
Unit
Reverse voltage (DC)
Parameter
VR
6
V
MA2B0270A/B
Forward
current (DC) MA2B027WA/WB
IFM
150
mA
24 min.
■ Absolute Maximum Ratings Ta = 25°C
100
MA2B027TA/TB
70
MA2B027QA/QB
50
2
φ 1.95 max.
Power dissipation
PD
150
mW
Junction temperature
Tj
150
°C
Storage temperature
Tstg
−55 to +150
°C
1:Cathode
2:Anode
JEDEC:DO-35
■ Electrical Characteristics Ta = 25°C
Parameter
Reverse current
(DC)
Forward voltage
(DC)
Forward voltage
(DC)
Temperature
coefficient of
forward voltage
Symbol
MA2B0270A/B
MA2B027WA/WB
MA2B027TA/TB
MA2B27QA/QB
MA2B0270A
MA2B0270B
MA2B027WA/WB
MA2B027TA/TB
MA2B027QA/QB
MA2B0270A/B
MA2B027WA
MA2B027WB
MA2B027TA
MA2B027TB
MA2B027QA
MA2B027QB
MA2B0270A/B
MA2B027WA/WB
MA2B027TA/TB
MA2B027QA/QB
IR
VF1
Conditions
IF = 1.5 mA
−∆VF/∆T
Typ
0.56
0.59
0.77
1.15
1.60
IF = 10 µA
VF2
Min
VR = 6 V
VR = 6 V
IF = 50 mA
IF = 3 mA
1.18
1.26
1.76
1.88
2.20
2.34
IF = 1.5 mA
IF = 3 mA
2.0
4.6
6.5
8.8
Max
Unit
10
1
µA
0.61
0.64
V
1.1
1.28
1.36
1.92
2.04
2.40
2.54
V
mV/°C
Note) Rated input/output frequency: 100 MHz
■ Cathode Indication
Type No.
MA2B0270A
Color
Yellow
MA2B0270B MA2B027WA MA2B027WB
Blue
Light Blue
Brown
MA2B927TA* MA2B027TB* MA2B027QA* MA2B027QB*
Yellow
Blue
Green
Brown
Note) * : Body Color ; Black
1
MA2B027 Series
Varistors
Characteristics charts of MA2B027
Characteristics charts of MA2B027Q
IF  V F
VF  Ta
1 000
Ta = 25°C
MA2B0270B
1
0.1
0.01
0.6
Forward current IF (mA)
MA2B0270A
10
Ta = 25°C
IF = 1.5 mA
0.8
Forward voltage VF (V)
Forward current IF (mA)
100
IF  V F
100
1.0
MA2B0270B
MA2B0270A
0.4
MA2B027QA
10
MA2B027QB
1
0.1
0.2
0
0.2
0.4
0.6
0.8
0
−40
1.0
Forward voltage VF (V)
0.01
0
40
80
120
160
0
1
2
3
4
Forward voltage VF (V)
Ambient temperature Ta (°C)
Characteristics charts of MA2B027W
IF  VF
1 000
VF  Ta
VF  Ta
2.0
Ta = 25°C
3.2
IF = 3 mA
IF = 3 mA
2.8
MA2B027WA
10
MA2B027WB
1
0.1
1.2
MA2B027WB
MA2B027WA
0.8
Forward voltage VF (V)
1.6
Forward voltage VF (V)
Forward current IF (mA)
100
2.4
2.0
MA2B027QB
1.6
1.2
MA2B027QA
0.8
0.4
0.4
0.01
0
0.4
0.8
1.2
1.6
2.0
0
−40
2.4
Forward voltage VF (V)
0
40
80
120
160
Ambient temperature Ta (°C)
IF  VF
IF = 3 mA
MA2B027TA
10
2.0
MA2B027TB
Forward voltage VF (V)
Forward current IF (mA)
VF  Ta
2.5
Ta = 25°C
1
0.1
MA2B027TA
1.5
MA2B027TB
1.0
0.5
0.01
0
1
2
3
Forward voltage VF (V)
2
4
0
−40
0
40
80
120
Ambient temperature Ta (°C)
0
40
80
120
Ambient temperature Ta (°C)
Characteristics charts of MA2B027T
100
0
−40
160
160
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