Fresher

1N4728A - 1N4758A
Zener Diodes

Tolerance = 5%

DO-41 Glass case
COLOR BAND DENOTES CATHODE

Absolute Maximum Ratings *
Symbol

Ta = 25°C unless otherwise noted

TJ, TSTG

Value

Units

Power Dissipation
@ TL  50C, Lead Length = 3/8”

1.0

W

Derate above 50C

PD

Parameter

6.67

mW/C

-65 to +200

C

Operating and Storage Temperature Range

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

Electrical Characteristics

Ta = 25°C unless otherwise noted

VZ (V) @ IZ (Note 1)
Device

Max. Zener Impedance
Test Current
IZ (mA)
ZZ @ IZ ZZK @
IZK
Max.
()
IZK () (mA)

VR
(V)

IZSM (mA) (Note 2)

1
1
1
1
1

100
100
50
10
10

1
1
1
1
1

1380
1260
1190
1070
970

550
600
700
700
700

1
1
1
1
0.5

10
10
10
10
10

1
2
3
4
5

890
810
730
660
605

700
700
700
700
700

0.5
0.5
0.25
0.25
0.25

10
10
10
5
5

6
7
7.6
8.4
9.1

550
500
454
414
380

Typ.

1N4728A
1N4729A
1N4730A
1N4731A
1N4732A

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

76
69
64
58
53

10
10
9
9
8

400
400
400
400
500

1N4733A
1N4734A
1N4735A
1N4736A
1N4737A

4.845
5.32
5.89
6.46
7.125

5.1
5.6
6.2
6.8
7.5

5.355
5.88
6.51
7.14
7.875

49
45
41
37
34

7
5
2
3.5
4

1N4738A
1N4739A
1N4740A
1N4741A
1N4742A

7.79
8.645
9.5
10.45
11.4

8.2
9.1
10
11
12

8.61
9.555
10.5
11.55
12.6

31
28
25
23
21

4.5
5
7
8
9

© 2009 Fairchild Semiconductor Corporation

Non-Repetitive
Peak Reverse
Current

IR
(A)

Min.

1N4728A - 1N4758A Rev. H3

Leakage
Current

www.fairchildsemi.com
1

1N4728A - 1N4758A — Zener Diodes

April 2009

Device

Max. Zener Impedance

Test Current
IZ (mA)
ZZ @ IZ ZZK @
Max.
()
IZK ()

Leakage
Current

Non-Repetitive
Peak