Document
1N4728A - 1N4758A — Zener Diodes
1N4728A - 1N4758A
Zener Diodes
Tolerance = 5%
April 2009
DO-41 Glass case
COLOR BAND DENOTES CATHODE
Absolute Maximum Ratings * Ta = 25°C unless otherwise noted
Symbol
Parameter
PD Power Dissipation @ TL 50C, Lead Length = 3/8”
Derate above 50C
TJ, TSTG Operating and Storage Temperature Range
* These ratings are limiting values above which the serviceability of the diode may be impaired.
Value
1.0
6.67 -65 to +200
Units
W
mW/C C
Electrical Characteristics Ta = 25°C unless otherwise noted
Device
1N4728A 1N4729A 1N4730A 1N4731A 1N4732A
1N4733A 1N4734A 1N4735A 1N4736A 1N4737A
1N4738A 1N4739A 1N4740A 1N4741A 1N4742A
VZ (V) @ IZ (Note 1)
Min. Typ. Max.
3.135 3.3 3.465 3.42 3.6 3.78 3.705 3.9 4.095 4.085 4.3 4.515 4.465 4.7 4.935
Max. Zener Impedance Test Current
IZ (mA)
ZZ @ IZ ZZK @ IZK () IZK () (mA)
76
10 400
1
69
10 400
1
64 9 400 1
58 9 400 1
53 8 500 1
4.845 5.1 5.355 5.32 5.6 5.88 5.89 6.2 6.51 6.46 6.8 7.14 7.125 7.5 7.875
49 45 41 37 34
7 550 1
5 600 1
2 700 1
3.5 700
1
4 700 0.5
7.79 8.2 8.61 8.645 9.1 9.555
9.5 10 10.5 10.45 11 11.55 11.4 12 12.6
31 28 25 23 21
4.5 700 0.5 5 700 0.5 7 700 0.25 8 700 0.25 9 700 0.25
Leakage Current
IR VR (A) (V)
100 1 100 1 50 1 10 1 10 1
10 1 10 2 10 3 10 4 10 5
10 6 10 7 10 7.6 5 8.4 5 9.1
Non-Repetitive Peak Reverse
Current
IZSM (mA) (Note 2)
1380 1260 1190 1070 970
890 810 730 660 605
550 500 454 414 380
© 2009 Fairchild Semiconductor Corporation 1N4728A - 1N4758A Rev. H3
1
www.fairchildsemi.com
1N4728A - 1N4758A — Zener Diodes
Device
1N4743A 1N4744A 1N4745A 1N4746A 1N4747A
1N4748A 1N4749A 1N4750A 1N4751A 1N4752A
1N4753A 1N4754A 1N4755A 1N4756A 1N4757A
1N4758A
VZ (V) @ IZ (Note 1)
Min. Typ. Max.
12.35 13 13.65 14.25 15 15.75 15.2 16 16.8 17.1 18 18.9
19 20 21
Max. Zener Impedance Test Current
IZ (mA)
ZZ @ IZ ZZK @ IZK () IZK () (mA)
19 10 700 0.25 17 14 700 0.25 15.5 16 700 0.25 14 20 750 0.25 12.5 22 750 0.25
20.9 22 23.1 22.8 24 25.2 25.65 27 28.35 28.5 30 31.5 31.35 33 34.65
34.2 36 37.8 37.05 39 40.95 40.85 43 45.15 44.65 47 49.35 48.45 51 53.55
53.2 56 58.8
11.5 10.5 9.5 8.5 7.5
7 6.5 6 5.5 5
4.5
23 750 0.25
25 750 0.25
35 750 0.25
40
1000
0.25
45
1000
0.25
50
1000
0.25
60
1000
0.25
70
1500
0.25
80
1500
0.25
95
1500
0.25
110 2000 0.25
Leakage Current
IR VR (A) (V)
5 9.9 5 11.4 5 12.2 5 13.7 5 15.2
5 16.7 5 18.2 5 20.6 5 22.8 5 25.1
5 27.4 5 29.7 5 32.7 5 35.8 5 38.8
5 42.6
Non-Repetitive Peak Reverse
Current
IZSM (mA) (Note 2)
344 304 285 250 225
205 190 170 150 135
125 115 110 95 90
80
Notes:
1. Zener Voltage (VZ) The zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (TL) at 30C ± 1C and 3/8” lead length.
2. 2 Square wave Reverse Surge at 8.3 msec soak time.
Top Mark Information
Device
1N4728A 1N4729A 1N4730A 1N4731A 1N4732A
1N4733A 1N4734A 1N4735A 1N4736A 1N4737A
1N4738A 1N4739A 1N4740A 1N4741A 1N4742A
1N4743A 1N4744A 1N4745A 1N4746A 1N4747A
1N4748A 1N4749A 1N4750A 1N4751A 1N4752A
1N4753A 1N4754A 1N4755A 1N4756A 1N4757A
1N4758A
Line 1
LOGO LOGO LOGO LOGO LOGO
LOGO LOGO LOGO LOGO LOGO
LOGO LOGO LOGO LOGO LOGO
LOGO LOGO LOGO LOGO LOGO
LOGO LOGO LOGO LOGO LOGO
LOGO LOGO LOGO LOGO LOGO
LOGO
Line 2
47 47 47 47 47
47 47 47 47 47
47 47 47 47 47
47 47 47 47 47
47 47 47 47 47
47 47 47 47 47
47
Line 3
28 29 30 31 32
33 34 35 36 37
38 39 40 41 42
43 44 45 46 47
48 49 50 51 52
53 54 55 56 57
58
Line 4
A A A A A
A A A A A
A A A A A
A A A A A
A A A A A
A A A A A
A
Line 5
XY XY XY XY XY
XY XY XY XY XY
XY XY XY XY XY
XY XY XY XY XY
XY XY XY XY XY
XY XY XY XY XY
XY
© 2009 Fairchild Semiconductor Corporation 1N4728A - 1N4758A Rev. H3
2
www.fairchildsemi.com
1N4728A - 1N4758A — Zener Diodes
Top Mark Information (Continued)
F 1st line: F - Fairchild Logo
47 2nd line: Device Name - 3rd to 4th characters of device name for 1Nxx series
or 4th to 6th characters for BZXyy series
36 3rd line: Device Name - 5th to 6th characters of device name for 1Nxx series A or Voltage rating for BZXyy series
4th line: Device Name - 7th to 8th characters of device name for 1Nxx series or Large Die identification only for BZXyy series
XY 5th line: Date Code - Two Digit - Six Weeks Date Code
F
General Requirements:
1.0 Cathode Band 2.0 First Line: F - Fairchild Logo 3.0 Second Line: Device name - For 1Nxx series: 3rd to 4th characters of the device name.
For BZxx series: 4th to 6th characters of the device name. 4.0 Third Line: Device name - For 1Nxx series: 5th to 6th characters of the device name.
For BZXyy series: Voltage rating 5.0 Third Line: Device name - For 1Nxx series: 7th to 8th characters of the device name.
(the 8th character is the large die identification) For BZXyy series: Large Die Identification character 6.0 Fourth Line: Date Code - Two Digit - Six Weeks Date Code Where: X represents the last digit of the calendar year Y represents the Six weeks numeric code 7.0 Devices shall be marked as requir.