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

JEDEC

ZENER

ZENER

MAXIMUM

VOLTAGE

EFFECTIVE

TYPE

VOLTAGE

TEST

ZENER

TEMPERATURE

TEMPERATURE

NUMBER

CURRENT

IMPEDANCE

STABILITY

COEFFICIENT

v

z

@ I

ZT

I

ZT

(Note 1)

∆V

ZT

Z

ZT

-55° to +100°

(Note 2)

VOLTS

mA

OHMS

mV

% / °C

1N821

5.9—6.5

7.5

15

96

0.01

1N821A

5.9—6.5

7.5

10

96

0.01

1N822 †

5.9—6.5

7.5

15

96

0.01

1N823

5.9—6.5

7.5

15

48

0.005

1N823A

5.9—6.5

7.5

10

48

0.005

1N824 †

5.9—6.5

7.5

15

48

0.005

1N825

5.9—6.5

7.5

15

19

0.002

1N825A

5.9—6.5

7.5

10

19

0.002

1N826

6.2—6.9

7.5

15

20

0.002

1N827

5.9—6.5

7.5

15

9

0.001

1N827A

5.9—6.5

7.5

10

9

0.001

1N828

6.2—6.9

7.5

15

10

0.001

1N829

5.9—6.5

7.5

15

5

0.0005

1N829A

5.9—6.5

7.5

10

5

0.0005

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.

FIGURE 1

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.

† Double Anode: Electrical Specifications Apply Under Both Bias Polarities.

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.

• 1N821-1,1N823-1,1N825-1,1N827-1 AND 1N829-1 AVAILABLE IN

• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES

• METALLURGICALLY BONDED

• DOUBLE PLUG CONSTRUCTION

1N821 thru 1N829A

and

1N821-1 thru 1N829-1