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

• 8.5 VOLT NOMINAL ZENER VOLTAGE + 5%

• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES

• LOW CURRENT RANGE: 0.5 AND 1.0 mA

• METALLURGICALLY BONDED

• DOUBLE PLUG CONSTRUCTION

DESIGN DATA

CASE: Hermetically sealed glass

case. DO – 35 outline.

LEAD MATERIAL: Copper clad steel.

LEAD FINISH: Tin / Lead

POLARITY: Diode to be operated with

the banded (cathode) end positive.

MOUNTING POSITION: ANY.

MAXIMUM RATINGS

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

Storage Temperature: -65°C to +175°C

DC Power Dissipation: 500mW @ +50°C

Power Derating: 4 mW / °C above +50°C

REVERSE LEAKAGE CURRENT

ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.

JEDEC

ZENER

ZENER

MAXIMUM

VOLTAGE

TEMPERATURE

EFFECTIVE

TYPE

VOLTAGE

TEST

DYNAMIC

TEMPERATURE

RANGE

TEMPERATURE

NUMBER

CURRENT

IMPEDANCE

STABILITY

COEFFICIENT

v

z

@ I

ZT

I

ZT

ZZT

∆V

ZT

(Note 3)

(Note 1)

(Note 2)

VOLTS

mA

OHMS

mV

°C

% / °C

1N4775

8.5

0.5

200

64

0 to + 75

0.01

1N4775A

8.5

0.5

200

132

-55 to +100

0.01

1N4776

8.5

0.5

200

32

0 to + 75

0.005

1N4776A

8.5

0.5

200

66

-55 to +100

0.005

1N4777

8.5

0.5

200

13

0 to + 75

0.002

1N4777A

8.5

0.5

200

26

-55 to +100

0.002

1N4778

8.5

0.5

200

6.4

0 to + 75

0.001

1N4778A

8.5

0.5

200

13

-55 to +100

0.001

1N4779

8.5

0.5

200

3.2

0 to + 75

0.0005

1N4779A

8.5

0.5

200

6.6

-55 to +100

0.0005

1N4780

8.5

1.0

100

64

0 to + 75

0.01

1N4780A

8.5

1.0

100

132

-55 to +100

0.01

1N4781

8.5

1.0

100

32

0 to + 75

0.005

1N4781A

8.5

1.0

100

66

-55 to +100

0.005

1N4782

8.5

1.0

100

13

0 to + 75

0.002

1N4782A

8.5

1.0

100

26

-55 to +100

0.002

1N4783

8.5

1.0

100

6.4

0 to + 75

0.001

1N4783A

8.5

1.0

100

13

-55 to +100

0.001

1N4784

8.5

1.0

100

3.2

0 to + 75

0.0005

1N4784A

8.5

1.0

100

6.6

-55 to +100

0.0005

NOTE 1

Zener impedance is derived by superimposing on l

ZT

A 60Hz rms

a.c. current equal to 10% of l

ZT

.

NOTE 2

The maximum allowable change observed over the entire temperature range i.e.,

the diode voltage will not exceed the specified mV at any discrete temperature

between the established limits, per JEDEC standard No.5.

NOTE 3

Zener voltage range equals 8.5 volts + 5%.

1N4775

thru

1N4784A

FIGURE 1