LLZ5257B datasheet(2/2 Pages) YEASHIN

Part #	LLZ5257B

Description	500 mW LL-34 Hermetically Sealed Glass Zener Voltage Regulators

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Manufacturer	YEASHIN [Yea Shin Technology Co., Ltd]

Direct Link	http://www.yeashin.com

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REV.02 20120305

LLZ52xxB Series

Electrical Characteristics

TA = 25°C unless otherwise noted

Device Type

VZ @ IZT

(Volts)

Nominal

IZT

(mA)

ZZT @ IZT

(

Ω)

Max

ZZK @ IZK = 0.25mA

(

Ω)

Max

IR @ VR

(

µA)

Max

VR

(Volts)

LLZ5244B

14

9

15

600

0.1

10

LLZ5245B

15

8.5

16

600

0.1

11

LLZ5246B

16

7.8

17

600

0.1

12

LLZ5247B

17

7.4

19

600

0.1

13

LLZ5248B

18

7

21

600

0.1

14

LLZ5249B

19

6.6

23

600

0.1

14

LLZ5250B

20

6.2

25

600

0.1

15

LLZ5251B

22

5.6

29

600

0.1

17

LLZ5252B

24

5.2

33

600

0.1

18

LLZ5253B

25

5

35

600

0.1

19

LLZ5254B

27

4.6

41

600

0.1

21

LLZ5255B

28

4.5

44

600

0.1

21

LLZ5256B

30

4.2

49

600

0.1

23

LLZ5257B

33

3.8

58

700

0.1

25

LLZ5258B

36

3.4

70

700

0.1

27

LLZ5259B

39

3.2

80

800

0.1

30

LLZ5258B

36

3.4

70

700

0.1

27

LLZ5259B

39

3.2

80

800

0.1

30

LLZ5260B

43

3

93

900

0.1

33

LLZ5261B

47

2.7

105

1000

0.1

36

LLZ5262B

51

2.5

125

1100

0.1

39

LLZ5263B

56

2.2

150

1300

0.1

43

VF Forward Voltage = 1.1 V Maximum @ IF = 200 mA for all types

Notes:

1.

The type numbers listed have zener voltage as shown and have a standard tolerance on the nominal zener voltage of ±5% in

Blue marking, suffix A=±10% in Brown marking, C= ±2% in Orange marking and D = ±1% in Yellow marking.

2.

For detailed information on price, availability and delivery of nominal zener voltages between the voltages shown and tighter

3.

The zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an rms value equal to

10% of the dc zener current (IZT or IZK) is superimposed to IZT or IZK.

Electrical Symbol Definition

Typical Characteristics

Symbol

Parameter

VZ

Reverse Zener Voltage @ IZT

IZT

Reverse Current

ZZT

Maximum Zener Impedance @ IZT

IZK

Reverse Current

ZZK

Maximum Zener Impedance @ IZK

IR

Reverse Leakage Current @ VR

VR

Breakdown Voltage

IF

Forward Current

VF

Forward Voltage @ IF

V

I

(mV)

(V)

(mA)

VF

IF

VR

IR

VZ

IZT

(nA)

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