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Revision: October, 2018

3

Electrical Characteristics (@TA=25°C unless otherwise specified) Table 1

Zener Voltage Range

(Note 3)

Maximum Zener Impedance

(Note 4)

Max Reverse

Leakage Current

Device

Marking

Code

(Note 2)

VZ @ IZT

ZZT @ IZT

ZZK @ IZK

IR

@ VR

Typical Temp.

Coefficient of

Zener Voltage

Type

Number

(Note 1)

TW

CN

Nom (V)

Min (V)

Max (V)

(Ω)(mA)(Ω)

(mA)

(µA)

(V)

(%/°C)

MMBZ5221B

MMBZ5222B

MMBZ5223B

MMBZ5225B

C1

C2

C3

C5

KC1

KC2

KC3

KC5

2.4

2.5

2.7

3.0

2.28

2.38

2.57

2.85

2.52

2.63

2.84

3.15

30

30

30

29

20

20

20

20

1200

1250

1300

1600

0.25

0.25

0.25

0.25

100

100

75

50

1.0

1.0

1.0

1.0

-0.075

-0.075

-0.075

-0.075

MMBZ5226B

MMBZ5227B

MMBZ5228B

MMBZ5229B

D1

D2

D3

D4

KG1

KG2

KG3

KG4

3.3

3.6

3.9

4.3

3.14

3.42

3.71

4.09

3.47

3.78

4.10

4.52

28

24

23

22

20

20

20

20

1600

1700

1900

2000

0.25

0.25

0.25

0.25

25

15

10

5.0

1.0

1.0

1.0

1.0

-0.070

-0.065

-0.060

-0.055

MMBZ5230B

MMBZ5231B

MMBZ5232B

MMBZ5233B

MMBZ5234B

D5

E1

E2

E3

E4

KG5

KE1

KE2

KE3

KE4

4.7

5.1

5.6

6.0

6.2

4.47

4.85

5.32

5.70

5.89

4.94

5.36

5.88

6.30

6.51

19

17

11

7.0

7.0

20

20

20

20

20

1900

1600

1600

1600

1000

0.25

0.25

0.25

0.25

0.25

5.0

5.0

5.0

5.0

5.0

2.0

2.0

3.0

3.5

4.0

±0.030

±0.030

+0.038

+0.038

+0.045

MMBZ5235B

MMBZ5236B

MMBZ5237B

MMBZ5238B

MMBZ5239B

E5

F1

F2

F3

F4

KE5

KF1

KF2

KF3

KF4

6.8

7.5

8.2

8.7

9.1

6.46

7.13

7.79

8.27

8.65

7.14

7.88

8.61

9.14

9.56

5.0

6.0

8.0

8.0

10

20

20

20

20

20

750

500

500

600

600

0.25

0.25

0.25

0.25

0.25

3.0

3.0

3.0

3.0

3.0

5.0

6.0

6.5

6.5

7.0

+0.050

+0.058

+0.062

+0.065

+0.068

MMBZ5240B

MMBZ5241B

MMBZ5242B

MMBZ5243B

F5

H1

H2

H3

KF5

KH1

KH2

KH3

10

11

12

13

9.50

10.45

11.40

12.35

10.50

11.55

12.60

13.65

17

22

30

13

20

20

20

9.5

600

600

600

600

0.25

0.25

0.25

0.25

3.0

2.0

1.0

0.5

8.0

8.4

9.1

9.9

+0.075

+0.076

+0.077

+0.079

MMBZ5245B

MMBZ5246B

MMBZ5248B

MMBZ5250B

H5

J1

J3

J5

KH5

KJ1

KJ3

KJ5

15

16

18

20

14.25

15.20

17.10

19.00

15.75

16.80

18.90

21.00

16

17

21

25

8.5

7.8

7.0

6.2

600

600

600

600

0.25

0.25

0.25

0.25

0.1

0.1

0.1

0.1

11

12

14

15

+0.082

+0.083

+0.085

+0.086

MMBZ5251B

MMBZ5252B

MMBZ5254B

MMBZ5255B

K1

K2

K4

K5

KK1

KK2

KK4

KK5

22

24

27

28

20.90

22.80

25.65

26.60

23.10

25.20

28.35

29.40

29

33

41

44

5.6

5.2

4.6

4.5

600

600

600

600

0.25

0.25

0.25

0.25

0.1

0.1

0.1

0.1

17

18

21

21

+0.087

+0.087

+0.090

+0.091

MMBZ5256B

MMBZ5257B

MMBZ5258B

MMBZ5259B

M1

M2

M3

M4

KM1

KM2

KM3

KM4

30

33

36

39

28.50

31.35

34.20

37.05

31.50

34.65

37.80

40.95

49

58

70

80

4.2

3.8

3.4

3.2

600

700

700

800

0.25

0.25

0.25

0.25

0.1

0.1

0.1

0.1

23

25

27

30

+0.091

+0.092

+0.093

+0.094

MMBZ5260B

MMBZ5261B

MMBZ5262B

M5

N1

N2

KM5

KN1

KN2

43

47

51

40.85

44.65

48.45

45.15

49.35

53.55

93

105

125

3.0

2.7

2.5

900

1000

1100

0.25

0.25

0.25

0.1

0.1

0.1

33

36

39

+0.095

+0.095

+0.096

Note: 1. Type numbers listed have standard tolerance on the nominal zener voltage of ±5%.

2. TW: Marking code for Taiwan plant. CN: Marking code for China plant.

3. Measured with pulse test current IZ at ambient temperature 25°C.

4. f = 1KHz

MMBZ5221B – MMBZ5262B

WON-TOP ELECTRONICS

®