Dated : 13/10/2009 H

SEMTECH ELECTRONICS LTD.

(

Subsidiary of Sino-Tech International Holdings Limited, a company

listed on the Hong Kong Stock Exchange, Stock Code: 724)

®

1.5KE Series

Breakdown Voltage

1)

Uni-directional /

Bi-directional

Type

Reverse

Stand-off

Voltage

Test

Current

(mA)

Maximum

Clamping

Voltage

Maximum

Peak Pulse

Current

2)

Maximum

Reverse

Leakage

3)

1.5KE6.8 / C

5.5

6.12

7.48

10

10.8

139

1000

1.5KE6.8A / CA

5.8

6.45

7.14

10

10.5

143

1000

1.5KE7.5 / C

6.05

6.75

8.25

10

11.7

128

500

1.5KE7.5A / CA

6.4

7.13

7.88

10

11.3

133

500

1.5KE8.2 / C

6.63

7.38

9.02

10

12.5

120

200

1.5KE8.2A / CA

7.02

7.79

8.61

10

12.1

124

200

1.5KE9.1 / C

7.37

8.19

10

1

13.8

109

50

1.5KE9.1A / CA

7.78

8.65

9.55

1

13.4

112

50

1.5KE10 / C

8.1

9

11

1

15

100

10

1.5KE10A / CA

8.55

9.5

10.5

1

14.5

103

10

1.5KE11 / C

8.92

9.9

12.1

1

16.2

92.6

5

1.5KE11A / CA

9.4

10.5

11.6

1

15.6

96.2

5

1.5KE12 / C

9.72

10.8

13.2

1

17.3

86.7

5

1.5KE12A / CA

10.2

11.4

12.6

1

16.7

89.8

5

1.5KE13 / C

10.5

11.7

14.3

1

19

78.9

5

1.5KE13A / CA

11.1

12.4

13.7

1

18.2

82.4

5

1.5KE15 / C

12.1

13.5

16.5

1

22

68.2

5

1.5KE15A / CA

12.8

14.3

15.8

1

21.2

70.8

5

1.5KE16 / C

12.9

14.4

17.6

1

23.5

63.8

5

1.5KE16A / CA

13.6

15.2

16.8

1

22.5

66.7

5

1.5KE18 / C

14.5

16.2

19.8

1

26.5

56.6

5

1.5KE18A / CA

15.3

17.1

18.9

1

25.2

59.5

5

1.5KE20 / C

16.2

18

22

1

29.1

51.5

5

1.5KE20A / CA

17.1

19

21

1

27.7

54.2

5

1.5KE22 / C

17.8

19.8

24.2

1

31.9

47

5

1.5KE22A / CA

18.8

20.9

23.1

1

30.6

49

5

1.5KE24 / C

19.4

21.6

26.4

1

34.7

43.2

5

1.5KE24A / CA

20.5

22.8

25.2

1

33.2

45.2

5

1.5KE27 / C

21.8

24.3

29.7

1

39.1

38.4

5

1.5KE27A / CA

23.1

25.7

28.4

1

37.5

40

5

1.5KE30 / C

24.3

27

33

1

43.5

34.5

5

1.5KE30A / CA

25.6

28.5

31.5

1

41.4

36.2

5

1.5KE33 / C

26.8

29.7

36.3

1

47.7

31.4

5

1.5KE33A / CA

28.2

31.4

34.7

1

45.7

32.8

5

1.5KE36 / C

29.1

32.4

39.6

1

52

28.8

5

1.5KE36A / CA

30.8

34.2

37.8

1

49.9

30.1

5

1.5KE39 / C

31.6

35.1

42.9

1

56.4

26.6

5

1.5KE39A / CA

33.3

37.1

41

1

53.9

27.8

5

1.5KE43 / C

34.8

38.7

47.3

1

61.9

24.2

5

1.5KE43A / CA

36.8

40.9

45.2

1

59.3

25.3

5

1.5KE47 / C

38.1

42.3

51.7

1

67.8

22.1

5

1.5KE47A / CA

40.2

44.7

49.4

1

64.8

23.1

5

1.5KE51 / C

41.3

45.9

56.1

1

73.5

20.4

5

1.5KE51A / CA

43.6

48.5

53.6

1

70.1

21.4

5