DS31039 Rev. 8 - 2

2 of 3

MMBZ5221BS - MMBZ5259BS

www.diodes.com

Type

Number

Marking

Code

Zener Voltage Range (Note 2)

Maximum Zener

Impedance (Note 3)

Maximum Reverse

Leakage Current (Note 2)

= 0.25mA

Nom (V)

Min (V)

Max (V)

mA

WmA

V

MMBZ5221BS

KC1

2.4

2.28

2.52

20

30

1200

100

1.0

MMBZ5223BS

KC3

2.7

2.57

2.84

20

30

1300

75

1.0

MMBZ5225BS

KC5

3.0

2.85

3.15

20

30

1600

50

1.0

MMBZ5226BS

KG1

3.3

3.14

3.47

20

28

1600

25

1.0

MMBZ5227BS

KG2

3.6

3.42

3.78

20

24

1700

15

1.0

MMBZ5228BS

KG3

3.9

3.71

4.10

20

23

1900

10

1.0

MMBZ5229BS

KG4

4.3

4.09

4.52

20

22

2000

5.0

1.0

MMBZ5230BS

KG5

4.7

4.47

4.94

20

19

1900

5.0

2.0

MMBZ5231BS

KE1

5.1

4.85

5.36

20

17

1600

5.0

2.0

MMBZ5232BS

KE2

5.6

5.32

5.88

20

11

1600

5.0

3.0

MMBZ5233BS

KE3

6.0

5.70

6.30

20

7

1600

5.0

3.5

MMBZ5234BS

KE4

6.2

5.89

6.51

20

7

1000

5.0

4.0

MMBZ5235BS

KE5

6.8

6.46

7.14

20

5

750

3.0

5.0

MMBZ5236BS

KF1

7.5

7.13

7.88

20

6

500

3.0

6.0

MMBZ5237BS

KF2

8.2

7.79

8.61

20

8

500

3.0

6.5

MMBZ5238BS

KF3

8.7

8.27

9.14

20

8

600

3.0

6.5

MMBZ5239BS

KF4

9.1

8.65

9.56

20

10

600

3.0

7.0

MMBZ5240BS

KF5

10

9.50

10.50

20

17

600

3.0

8.0

MMBZ5241BS

KH1

11

10.45

11.55

20

22

600

2.0

8.4

MMBZ5242BS

KH2

12

11.40

12.60

20

30

600

1.0

9.1

MMBZ5243BS

KH3

13

12.35

13.65

9.5

13

600

0.5

9.9

MMBZ5245BS

KH5

15

14.25

15.75

8.5

16

600

0.1

11

MMBZ5246BS

KJ1

16

15.20

16.80

7.8

17

600

0.1

12

MMBZ5248BS

KJ3

18

17.10

18.90

7.0

21

600

0.1

14

MMBZ5250BS

KJ5

20

19.00

21.00

6.2

25

600

0.1

15

MMBZ5251BS

KK1

22

20.90

23.10

5.6

29

600

0.1

17

MMBZ5252BS

KK2

24

22.80

25.20

5.2

33

600

0.1

18

MMBZ5254BS

KK4

27

25.65

28.35

5.0

41

600

0.1

21

MMBZ5255BS

KK5

28

26.60

29.40

4.5

44

600

0.1

21

MMBZ5256BS

KM1

30

28.50

31.50

4.2

49

600

0.1

23

MMBZ5257BS

KM2

33

31.35

34.65

3.8

58

700

0.1

25

MMBZ5258BS

KM3

36

34.20

37.80

3.4

70

700

0.1

27

MMBZ5259BS

KM4

39

37.05

40.95

3.2

80

800

0.1

30

Notes:

2. Short duration test pulse used to minimize self-heating effect.

3. f = 1KHz.

Month

Jan

Feb

March

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Code

12

3

4

5

6

7

89

O

N

D

Year

2002

2003

2004

2005

2006

2007

2008

2009

Code

NP

R

ST

U

V

W

Date Code Key

KXX = Product Type Marking Code, See Sheet 1

YM = Date Code Marking

Y = Year ex: N = 2002

M = Month ex: 9 = September

KXX YM

Marking Information