©2006 Fairchild Semiconductor Corporation

1

www.fairchildsemi.com

1N5221B - 1N5279B Rev. I

tm

November 2006

1N5221B - 1N5279B

Zeners

* These ratings are limiting values above which the serviceability of the diode may be impaired.

** Non-recurrent square wave PW = 8.3ms, Ta = 50 degrees C.

Symbol

Parameter

Value

Units

Power Dissipation

Derate above 50

°C

500

4.0

mW

mW

°C

Storage Temperature Range

-65 to +200

°C

Maximum Junction Operating Temperature

+200

°C

Lead Temperature (1/16” from case for 10 seconds)

+230

°C

Device

(%/

°C)

Min.

Typ.

Max.

1N5221B

1N5222B

1N5223B

1N5224B

1N5225B

2.28

2.375

2.565

2.66

2.85

2.4

2.5

2.7

2.8

3

2.52

2.625

2.835

2.94

3.15

30

30

30

30

29

20

20

20

20

20

1,200

1,250

1,300

1,400

1,600

0.25

0.25

0.25

0.25

0.25

100

100

75

75

50

1.0

1.0

1.0

1.0

1.0

-0.085

-0.085

-0.080

-0.080

-0.075

1N5226B

1N5227B

1N5228B

1N5229B

1N5230B

3.135

3.42

3.705

4.085

4.465

3.3

3.6

3.9

4.3

4.7

3.465

3.78

4.095

4.515

4.935

28

24

23

22

19

20

20

20

20

20

1,600

1,700

1,900

2,000

1,900

0.25

0.25

0.25

0.25

0.25

25

15

10

5.0

2.0

1.0

1.0

1.0

1.0

1.0

-0.07

-0.065

-0.06

+/-0.055

+/-0.03

1N5231B

1N5232B

1N5233B

1N5234B

1N5235B

4.845

5.32

5.7

5.89

6.46

5.1

5.6

6

6.2

6.8

5.355

5.88

6.3

6.51

7.14

17

11

7.0

7.0

5.0

20

20

20

20

20

1,600

1,600

1,600

1,000

750

0.25

0.25

0.25

0.25

0.25

5.0

5.0

5.0

5.0

3.0

2.0

3.0

3.5

4.0

5.0

+/-0.03

0.038

0.038

0.045

0.05

1N5236B

1N5237B

1N5238B

1N5239B

1N5240B

7.125

7.79

8.265

8.645

9.5

7.5

8.2

8.7

9.1

10

7.875

8.61

9.135

9.555

10.5

6.0

8.0

8.0

10

17

20

20

20

20

20

500

500

600

600

600

0.25

0.25

0.25

0.25

0.25

3.0

3.0

3.0

3.0

3.0

6.0

6.5

6.5

7.0

8.0

0.058

0.062

0.065

0.068

0.075

1N5241B

1N5242B

1N5243B

1N5244B

1N5245B

10.45

11.4

12.35

13.3

14.25

11

12

13

14

15

11.55

12.6

13.65

14.7

15.75

22

30

13

15

16

20

20

9.5

9.0

8.5

600

600

600

600

600

0.25

0.25

0.25

0.25

0.25

2.0

0.1

0.1

0.1

0.1

8.4

9.1

9.9

10

11

0.076

0.077

0.079

0.080

0.082

1N5246B

1N5247B

1N5248B

1N5249B

1N5250B

15.2

16.15

17.1

18.05

19

16

17

18

19

20

16.8

17.85

18.9

19.95

21

17

19

21

23

25

7.8

7.4

7.0

6.6

6.2

600

600

600

600

600

0.25

0.25

0.25

0.25

0.25

0.1

0.1

0.1

0.1

0.1

12

13

14

14

15

0.083

0.084

0.085

0.085

0.086

Tolerance = 5%

DO-35 Glass case

COLOR BAND DENOTES CATHODE