Panasonic MA3X028W, MA3X028T, MA3X028 Datasheet

Varistors

MA3X028 Series

Silicon epitaxial planar type variable resistor

For temperature and reduced voltage compensation

■ Features

•

Mini type package

•

Extremely small reverse current I

•

High reliability with planar structure

•

Wide forward voltage V

range

F

R

■ Absolute Maximum Ratings Ta = 25°C

Parameter Symbol Rating Unit

Reverse voltage (DC) V

Forward

current (DC)

MA3X0280A/B

MA3X028WA/WB

I

MA3X028TA/TB

Power dissipation P

Junction temperature T

Storage temperature T

R

FM

D

j

stg

6V

150 mA

100

70

150 mW

125 °C

−55 to +125 °C

1

0.950.95

− 0.05

+ 0.2

2.9

1.9 ± 0.2

2

− 0.1

+ 0.2

0.8

1.1

0.1 to 0.3

0.4 ± 0.2

1：Anode
2：NC JEDEC：TO-236
3：Cathode EIAJ：SC-59A

Mini Type Package (3-pin)

Marking Symbol

•

MA3X0280A : MD

•

MA3X0280B : ME

•

MA3X028WA : MF

•

MA3X028WB : MK

•

MA3X028TA : ML

•

MA3X028TB : MM

+ 0.2

2.8

− 0.3

+ 0.25

1.5

− 0.050.65 ± 0.15 0.65 ± 0.15

3

0 to 0.1

Unit : mm

1.45

+ 0.1

− 0.05

0.4

− 0.06

+ 0.1

0.16

■ Electrical Characteristics Ta = 25°C

Parameter Symbol Conditions Min Typ Max Unit

Reverse current (DC) I

Forward voltage

(DC)

Forward voltage

(DC)

MA3X028WA/WB

MA3X028TA

MA3X0280A

MA3X0280B

MA3X028WA

MA3X028WB

MA3X028TA

MA3X028TB

Temperature

coefficient of

forward voltage

MA3X0280A

MA3X028WA

MA3X028TA

/B

Note) Rated input/output frequency: 100 MHz

R

V

F1

V

F2

−∆VF/∆TIF = 3 mA 2.0 mV/°C

VR = 6 V 1.0 µA

IF = 10 µA 0.77 V

1.15

IF = 1.5 mA 0.56 0.61 V

0.59 0.64

IF = 3 mA 1.18 1.28

1.26 1.36

1.76 1.92

1.88 2.04

4.6

6.5

1

MA3X028 Series

Characteristics charts of MA3X028

Varistors

2

10

T

= 25°C

a

)

10

mA
(

F

1

−1

10

Forward current I

−2

10

0 0.2 0.4 0.6 0.8 1.0

IF  V

MA3X0280A MA3X0280B

Forward voltage VF (V

F

)

Characteristics charts of MA3X028W

 V

2

10

MA3X028WA

F

VF  T

0.8

)

0.6

V
(

F

0.4

0.2

Forward voltage V

0

−40 0 80 12040

Ambient temperature Ta (°C

2.0

MA3X0280A

VF  T

a

= 1.5 mA

I

F

MA3X0280B

a IF

IF = 3 mA

)

)

10

mA
(

F

1

MA3X028WB

−1

10

Forward current I

−2

10

0 0.4 0.8 1.2 1.6 2.0

Forward voltage VF (V

)

Characteristics charts of MA3X028T

 V

160

140

)

120

mA

(

100

F

80

60

40

Forward current I

20

F

Ta = 25°C

MA3X028TB

MA3X028TA

)

1.5

V

(

F

MA3X028WA

1.0

0.5

Forward voltage V

0

−40 0 80 12040

Ambient temperature Ta (°C

VF  T

2.8

2.4

)
V

2.0

(

F

MA3X028TA

1.6

1.2

0.8

Forward voltage V

0.4

MA3X028TB

MA3X028WB

a IF

I

= 3 mA

F

)

0

0 0.5 1.0 1.5 2.0 2.5 3.0

Forward voltage VF (V

2

0

)

−40 0 40 80 120 160

Ambient temperature Ta (°C

)