Part No.

R25

(Ω)

Max.

Steady

State

Current

(A)

Approx.

R of Max.

Current

(Ω)

Dissip.

Coef.

(mW/ºC)

Thermal

Time

Constant

(S)

Max.

Load

Capacitance

in uF

UL

120VAC

240 VAC

MF72-5D5

5

1

0.353

6

20

188

47

MF72-10D5

10

0.7

0.771

6

20

188

47

MF72-60D5

60

0.3

1.878

6

18

188

47

MF72-200D5

200

0.1

18.70

6

18

88

22

MF72-5D7

5

2

0.283

10

30

224

56

MF72-8D7

8

1

0.539

9

28

224

56

MF72-10D7

10

1

0.616

9

27

224

56

MF72-12D7

12

1

0.816

9

27

224

56

MF72-16D7

16

0.7

1.003

9

27

224

56

MF72-22D7

22

0.6

1.108

9

27

224

56

MF72-33D7

33

0.5

1.485

10

28

188

47

MF72-200D7

200

0.2

11.65

11

28

188

47

MF72-3D9

3

4

0.120

11

35

272

68

√

MF72-4D9

4

3

0.190

11

35

272

68

√

MF72-5D9

5

3

0.210

11

34

272

68

√

MF72-6D9

6

2

0.315

11

34

272

68

√

MF72-8D9

8

2

0.400

11

32

400

100

√

MF72-10D9

10

2

0.458

11

32

400

100

√

MF72-12D9

12

1

0.652

11

32

400

100

√

MF72-16D9

16

1

0.802

11

31

400

100

√

MF72-20D9

20

1

0.864

11

30

600

150

√

MF72-22D9

22

1

0.950

11

30

600

150

√

MF72-30D9

30

1

1.022

11

30

600

150

√

MF72-33D9

33

1

1.124

11

30

600

150

√

MF72-50D9

50

1

1.252

11

30

600

150

√

MF72-60D9

60

0.8

1.502

11

30

600

150

√

MF72-80D9

80

0.8

2.010

11

30

272

68

√

Application

Can be installed into the power circuits of:

• Power supplies and inverters

• Uninterruptible Power Supplies

• Energy saving lamps

• Electronic Ballasts

• Filament Protection of various types of lamps

• Some types of heaters

• For higher power circuits ask about the MF73

and MF74 series surge suppressors.

Characteristics

• Small Size and fast response

• High Power handling capability

• Fast response to surge current

• High material constant (B value)

• Low residual resistance

• Wide operating temperature range -55 to +200C

• R25 allowable tolerance is ±20%

• Long-term Stability and Reliability

• UL 1434 File# E241319

• CQC File# 04001010556

Main Techno-Parameter

Operating Temperature: -55 to 200ºC

Part No.

R25

(Ω)

Max.

Steady

State

Current

(A)

Approx.

R of Max.

Current

(Ω)

Dissip.

Coef.

(mW/ºC)

Thermal

Time

Constant

(S)

Max.

Load

Capacitance

in uF

UL

120VAC

240 VAC

MF72-120D9

120

0.8

3.015

11

30

272

68

√

MF72-200D9

200

0.5

5.007

11

32

188

47

√

MF72-400D9

400

0.2

30.30

11

32

188

47

√

MF72-2.5D11

2.5

5

0.095

13

43

600

150

√

MF72-3D11

3

5

0.100

13

43

600

150

√

MF72-4D11

4

4

0.150

13

44

600

150

√

MF72-5D11

5

4

0.156

13

45

600

150

√

MF72-6D11

6

3

0.240

13

45

880

220

√

MF72-8D11

8

3

0.255

14

47

880

220

√

MF72-10D11

10

3

0.275

14

47

880

220

√

MF72-12D11

12

2

0.462

14

48

880

220

√

MF72-16D11

16

2

0.470

14

50

880

220

√

MF72-20D11

20

2

0.512

15

52

880

220

√

MF72-22D11

22

2

0.563

15

52

880

220

√

MF72-30D11

30

1.5

0.667

15

52

880

220

√

MF72-33D11

33

1.5

0.734

15

52

880

220

√

MF72-50D11

50

1.5

1.021

15

52

880

220

√

MF72-60D11

60

1.5

1.215

15

52

880

220

√

MF72-80D11

80

1.2

1.656

15

52

600

150

√

MF72-1.3D13

1.3

7

0.062

13

60

880

220

√

MF72-1.5D13

1.5

7

0.073

13

60

880

220

√

MF72-2.5D13

2.5

6

0.088

13

60

880

220

√

MF72-3D13

3

6

0.092

14

60

880

220

√

MF72-4D13

4

5

0.120

15

67

880

220

√

MF72-5D13

5

5

0.125

15

68

880

220

√

MF72-6D13

6

4

0.170

15

65

880

220

√

MF72-7D13

7

4

0.188

15

65

1320

330

√