Notes:

(1) The Zener Impedance is derived from the 60Hz AC voltage which results when an AC current having an RMS value

equal to 10% of the Zener current (I

points to insure a sharp knee on the breakdown curve and to eliminate unstable units.

(2) Valid provided that electrodes are kept at ambient temperature.

(3) Measured under thermal equilibrium and DC test conditions.

Type

Nominal

Zener

Test

current

Maximum

regulator

Typical

temperature

coefficient

at I

ZT

V

Z

I

ZT

at I

ZT

Z

ZT

at

I

Z

ZK

I

R

Test voltage

Suffix A

Suffix B

I

ZM

VZ

VmA

uA

V

%/K

ZMM5225

3.0

20

29

1600

50

0.95

1.0

152

-0.075

ZMM5226

3.3

20

28

1600

25

0.95

1.0

138

-0.070

ZMM5227

3.6

20

24

1700

15

0.95

1.0

126

-0.065

ZMM5228

3.9

20

23

1900

10

0.95

1.0

115

-0.060

ZMM5229

4.3

20

22

2000

5

0.95

1.0

106

-0.055

ZMM5230

4.7

20

19

1900

5

1.9

2.0

97

±

0.030

ZMM5231

5.1

20

17

1600

5

1.9

2.0

89

±

0.030

ZMM5232

5.6

20

11

1600

5

2.9

3.0

81

+0.038

ZMM5233

6.0

20

7

1600

5

3.3

3.5

76

+0.038

ZMM5234

6.2

20

7

1000

5

3.8

4.0

73

+0.045

ZMM5235

6.8

20

5

750

3

4.8

5.0

67

+0.050

ZMM5236

7.5

20

6

500

3

5.7

6.0

61

+0.058

ZMM5237

8.2

20

8

500

3

6.2

6.5

55

+0.062

ZMM5238

8.7

20

8

600

3

6.2

6.5

52

+0.065

ZMM5239

9.1

20

10

600

3

6.7

7.0

50

+0.068

ZMM5240

10

20

17

600

3

7.6

8.0

45

+0.075

ZMM5241

11

20

22

600

2

8.0

8.4

41

+0.076

ZMM5242

12

20

30

600

1

8.7

9.1

38

+0.077

ZMM5243

13

9.5

13

600

0.5

9.4

9.9

35

+0.079

ZMM5244

14

9.0

15

600

0.1

9.5

10

32

+0.082

ZMM5245

15

8.5

16

600

0.1

10.5

11

30

+0.082

ZMM5246

16

7.8

17

600

0.1

11.4

12

28

+0.083

ZMM5247

17

7.4

19

600

0.1

12.4

13

27

+0.084

ZMM5248

18

7.0

21

600

0.1

13.3

14

25

+0.085

ZMM5249

19

6.6

23

600

0.1

13.3

14

24

+0.086

ZMM5250

20

6.2

25

600

0.1

14.3

15

23

+0.086

ZMM5251

22

5.6

29

600

0.1

16.2

17

21

+0.087

ZMM5252

24

5.2

33

600

0.1

17.1

18

19.1

+0.087

ZMM5253

25

5.0

35

600

0.1

18.1

19

18.2

+0.089

ZMM5254

27

4.6

41

600

0.1

20

21

16.8

+0.090

ZMM5255

28

4.5

44

600

0.1

20

21

16.2

+0.091

ZMM5256

30

4.2

49

600

0.1

22

23

15.1

+0.091

ZMM5257

33

3.8

58

700

0.1

24

25

13.8

+0.092

ZMM5258

36

3.4

70

700

0.1

26

27

12.6

+0.093

ZMM5259

39

3.2

80

800

0.1

29

30

11.6

+0.094

ZMM5260

43

3.0

93

900

0.1

31

33

10.6

+0.095

ZMM5261

47

2.7

105

1000

0.1

34

36

9.7

+0.095

ZMM5262

51

2.5

125

1100

0.1

37

39

8.9

+0.096

2