23 MILS

15 MILS

• ZENER DIODE CHIPS

• ALL JUNCTIONS COMPLETELY PROTECTED WITH SILICON DIOXIDE

• ELECTRICALLY EQUIVALENT TO 1N4728A THRU 1N4764A

• 1 WATT CAPABILITY WITH PROPER HEAT SINKING

• COMPATIBLE WITH ALL WIRE BONDING AND DIE ATTACH TECHNIQUES,

WITH THE EXCEPTION OF SOLDER REFLOW

CD4728A

thru

CD4764A

DESIGN DATA

METALLIZATION:

Top: (Anode)................ ....Al

Back: (Cathode)............. Au

AL THICKNESS...... .....25,000

GOLD THICKNESS........4,000

CHIP THICKNESS............. .....10 Mils

CIRCUIT LAYOUT DATA:

For Zener operation, cathode

must be operated positive

with respect to anode.

TOLERANCES: ALL

Dimensions + 2 mils

MAXIMUM RATINGS

Operating Temperature: -65°C to +175°C

Storage Temperature: -65°C to +175°C

Forward Voltage @ 200 mA: 1.5 Volts Maximum

ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified

NOMINAL

MAXIMUM

MAXIMUM

MAXIMUM

TYPE

ZENER

TEST

ZENER

REVERSE

TEST

KNEE

TEST

NUMBER

VOLTAGE

CURRENT

IMPEDANCE

CURRENT

VOLTAGE

IMPEDANCE

CURRENT

(VZ)(lZT)(ZZT @ lZT)(lR @ VR)(VR)(ZZK )(lZK)

(Note 1)

(Note 2)

(Note 2)

VOLTS

mA

OHMS

VOLTS

OHMS

mA

CD4728A

3.3

76

10

100

1

400

1.0

CD4729A

3.6

69

10

100

1

400

1.0

CD4730A

3.9

64

9

100

1

400

1.0

CD4731A

4.3

58

9

10

1

400

1.0

CD4732A

4.7

53

8

10

1

500

1.0

CD4733A

5.1

49

7

5

1

550

1.0

CD4734A

5.6

45

5

5

2

600

1.0

CD4735A

6.2

41

2

5

3

700

1.0

CD4736A

6.8

37

3.5

3

4

700

1.0

CD4737A

7.5

34

4.0

3

5

700

0.5

CD4738A

8.2

31

4.5

3

6

700

0.5

CD4739A

9.1

28

5.0

3

7

700

0.5

CD4740A

10

25

7

3

7.6

700

0.25

CD4741A

11

23

8

2

8.4

700

0.25

CD4742A

12

21

9

1

9.1

700

0.25

CD4743A

13

19

10

0.5

9.9

700

0.25

CD4744A

15

17

14

0.1

11.4

700

0.25

CD4745A

16

15.5

16

0.1

12.2

700

0.25

CD4746A

18

14

20

0.1

13.7

750

0.25

CD4747A

20

12.5

22

0.1

15.2

750

0.25

CD4748A

22

11.5

23

0.1

16.7

750

0.25

CD4749A

24

10.5

25

0.1

18.2

750

0.25

CD4750A

27

9.5

35

0.1

20.6

750

0.25

CD4751A

30

8.5

40

0.1

22.8

1000

0.25

CD4752A

33

7.5

45

0.1

25.1

1000

0.25

CD4753A

36

7.0

50

0.1

27.4

1000

0.25

CD4754A

39

6.5

60

0.1

29.7

1000

0.25

CD4755A

43

6.0

70

0.1

32.7

1500

0.25

CD4756A

47

5.5

80

0.1

35.8

1500

0.25

CD4757A

51

5.0

95

0.1

38.8

1500

0.25

CD4758A

56

4.5

110

0.1

42.6

2000

0.25

CD4759A

62

4.0

125

0.1

47.1

2000

0.25

CD4760A

68

3.7

150

0.1

51.7

2000

0.25

CD4761A

75

3.3

175

0.1

56.0

2000

0.25

CD4762A

82

3.0

200

0.1

62.2

3000

0.25

CD4763A

91

2.8

250

0.1

69.2

3000

0.25

CD4764A

100

2.5

350

0.1

76.0

3000

0.25

NOTE 1 Zener voltage range equals nominal Zener voltage + 5% for “A” Suffix. No Suffix

denotes + 10%. Zener voltage is read using a pulse measurement, 10 milliseconds

maximum. "C" suffix = + 2% and "D" suffix = + 1%.

NOTE 2 Zener impedance is derived by superimposing on lZT A 60Hz rms a.c. current

equal to 10% of lZT.

BACKSIDE IS CATHODE

FIGURE 1

22 COREY STREET, MELROSE, MASSACHUSETTS 02176

PHONE (781) 665-1071

FAX (781) 665-7379

WEBSITE: http://www.cdi-diodes.com

E-mail: mail@cdi-diodes.com