SMM4F datasheet(3/10 Pages) STMICROELECTRONICS

Part #	SMM4F

Description	High junction temperature Transil?

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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SMM4F

Characteristics

3/10

Figure 1.

Definition of IPP pulse

Table 4.

Electrical characteristics - parameter values (Tamb = 25 °C)

Type

IRM max@VRM

VBR @IR

(1)

VCL @IPP

10/1000 µs

RD

(2)

10/1000 µs

VCL @IPP

8/20 µs

RD

(2)

8/20 µs

αT(3)

25 °C 85 °C

min

typ

max

µA

V

mA

V

A

Ω

VA

Ω

10-4/°C

SMM4F5.0A

10

50

5.0 6.46 6.80 7.14 10

9.2

43.5

0.047

13.4 174

0.04

5.7

SMM4F6.0A

10

50

6.0 6.65 7.00 7.35 10

10.3 38.8

0.076

13.7 170

0.04

5.9

SMM4F6.5A

10

50

6.5 7.13 7.50 7.88 10

11.2 37.5

0.093

14.5 160

0.04

6.1

SMM4F8.5A

10

50

8.5

9.5

10.0 10.5

1

14.4 27.7

0.141

19.5 124

0.07

7.3

SMM4F10A

0.2

1

10

11.4 12.0 12.6

1

17.0 23.5

0.187

21.7 106

0.09

7.8

SMM4F12A

0.2

1

12

13.3 14.0 14.7

1

19.9 20.1

0.259

25.3

91

0.12

8.3

SMM4F13A

0.2

1

13

14.3 15.0 15.8

1

21.5 18.6

0.309

27.2

85

0.13

8.4

SMM4F15A

0.2

1

15

17.1 18.0 18.9

1

24.4 16.4

0.335

32.5

71

0.19

8.8

SMM4F18A

0.2

1

18

20.9 22.0 23.1

1

29.2 14.0

0.436

39.3

59

0.27

9.2

SMM4F20A

0.2

1

20

22.8 24.0 25.2

1

32.4 12.0

0.600

42.8

54

0.33

9.4

SMM4F24A

0.2

1

24

26.6 28.01 29.4

1

38.9

9.5

1.00

50

46

0.47

9.6

SMM4F26A

0.2

1

26

28.5 30.0 31.5

1

42.1

9.0

1.18

53.5

43

0.51

9.7

SMM4F28A

0.2

1

28

31.4 33.0 34.7

1

45.4

8.0

1.34

59.0

39

0.62

9.8

SMM4F33A

0.2

1

33

37.1 39.0 41.0

1

53.3

7.0

1.76

69.7

33

0.87

10.0

1.

Pulse test: tp <50ms.

2.

To calculate maximum clamping voltage at other surge currents, use the following formula VCLmax = RD x IPP + VBRmax

3.

To calculate VBR versus junction temperature, use the following formula: VBR @ Tj = VBR @ 25 °C x (1 + αT x (Tj - 25))

100

50

%IPP

tr

tp

0

t

Repetitive peak pulse current

tr = rise time (µs)

tp = pulse duration time (µs)

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