ZMM55C20 datasheet(2/3 Pages) CYSTEKEC

Part #	ZMM55C20

Description	Surface Mount Zener Voltage Regulators

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Manufacturer	CYSTEKEC [Cystech Electonics Corp.]

Direct Link	http://www.cystekec.com

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2 / 3 page

CYStech Electronics Corp.

Spec. No. : C326SM

Issued Date : 2003.07.31

Revised Date :

Page No. : 2/3

ZMM55CXXSM series

CYStek Product Specification

Electrical Characteristics (TL=30℃, unless otherwise noted, VF=1.0V Max @IF=100mA for all types.)

Test

Current

Maximum Zener

Impedance(Note 2)

Maximum Reverse

Leakage Current

Device

Nominal

Zener

Voltage

Vz at IzT

(V)(Note1)

IZT(mA)

ZZT at

IZT

(Ω)

ZZK at

IZK=1mA

(Ω)

Typical

Temperature

Coefficient

(%/℃)

IR

(μA)

Test

Voltage

(V)

Maximum

Regulation

Current

IZM(mA)

(Note 3)

ZMM55C2V4

2.28-2.56

5

85

600

-0.070

50

1.0

150

ZMM55C2V7

2.5-2.9

5

85

600

-0.070

10

1.0

135

ZMM55C3V0

2.8-3.2

5

85

600

-0.070

4

1.0

125

ZMM55C3V3

3.1-3.5

5

85

600

-0.065

2

1.0

115

ZMM55C3V6

3.4-3.8

5

85

600

-0.060

2

1.0

105

ZMM55C3V9

3.7-4.1

5

85

600

-0.050

2

1.0

95

ZMM55C4V3

4.0-4.6

5

75

600

-0.025

1

1.0

90

ZMM55C4V7

4.4-5.0

5

60

600

-0.010

0.5

1.0

85

ZMM55C5V1

4.8-5.4

5

35

550

+0.015

0.1

1.0

80

ZMM55C5V6

5.2-6.0

5

25

450

+0.025

0.1

1.0

70

ZMM55C6V2

5.8-6.6

5

10

200

+0.035

0.1

2.0

64

ZMM55C6V8

6.4-7.2

5

8

150

+0.045

0.1

3.0

58

ZMM55C7V5

7.0-7.9

5

7

50

+0.050

0.1

5.0

53

ZMM55C8V2

7.7-8.7

5

7

50

+0.050

0.1

6.0

47

ZMM55C9V1

8.5-9.6

5

10

50

+0.060

0.1

7.0

43

ZMM55C10

9.4-10.6

5

15

70

+0.070

0.1

7.5

40

ZMM55C11

10.4-11.6

5

20

70

+0.070

0.1

8.5

36

ZMM55C12

11.4-12.7

5

20

90

+0.070

0.1

9.0

32

ZMM55C13

12.4-14.1

5

26

110

+0.070

0.1

10

29

ZMM55C15

13.8-15.6

5

30

110

+0.070

0.1

11

27

ZMM55C16

15.3-17.1

5

40

170

+0.070

0.1

12

24

ZMM55C18

16.8-19.1

5

50

170

+0.070

0.1

14

21

ZMM55C20

18.8-21.2

5

55

220

+0.070

0.1

15

20

ZMM55C22

20.8-23.3

5

55

220

+0.070

0.1

17

18

ZMM55C24

22.8-25.6

5

80

220

+0.080

0.1

18

16

ZMM55C27

25.1-28.9

5

80

220

+0.080

0.1

20

14

ZMM55C30

28-32

5

80

220

+0.080

0.1

22

13

ZMM55C33

31-35

5

80

220

+0.080

0.1

24

12

ZMM55C36

34-38

5

80

220

+0.080

0.1

27

11

ZMM55C39

37-41

2.5

90

500

+0.080

0.1

30

10

ZMM55C43

40-46

2.5

90

600

+0.080

0.1

33

9.2

ZMM55C47

44-50

2.5

110

700

+0.080

0.1

36

8.5

Note: 1.The type numbers listed have zener voltage min/max as shown. Device tolerance of ±2% are indicated by a “B”

instead of a “C”. Zener voltage is measured with the device junction in thermal equilibrium at the lead temperature

of 30℃±1℃.

2.ZZT and ZZK are measured by dividing the ac voltage drop across the device by the ac current applied. The specified

limits are for IZ(ac) =0.1IZ(dc) with the ac frequency = 1k Hz.

3.This data was calculated using nominal voltages. The maximum current handling capability on a worse case basis is

limited by the actual zener voltage at the operating point and the powered derating curve.

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