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is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.1N4728A - 1N4758A Zener Diodes
April 2009
1N4728A - 1N4758A
Zener Diodes
Tolerance = 5%
DO-41 Glass case
COLOR BAND DENOTES CATHODE
Absolute Maximum Ratings * T = 25C unless otherwise noted
a
Symbol Parameter Value Units
P Power Dissipation 1.0 W
D
@ TL 50C, Lead Length = 3/8
Derate above 50 C 6.67 mW/ C
T , T Operating and Storage Temperature Range -65 to +200 C
J STG
* These ratings are limiting values above which the serviceability of the diode may be impaired.
Electrical Characteristics T = 25C unless otherwise noted
a
Leakage
Non-Repetitive
V (V) @ I (Note 1) Max. Zener Impedance
Z Z
Current
Test Current
Peak Reverse
Device
I (mA) Current
Z Z @ I Z @ I I V
Z Z ZK ZK R R
Min. Typ. Max.
() I ( ) (mA) (A) (V) I (mA) (Note 2)
ZK
ZSM
1N4728A 3.135 3.3 3.465 76 10 400 1 100 1 1380
1N4729A 3.42 3.6 3.78 69 10 400 1 100 1 1260
1N4730A 3.705 3.9 4.095 64 9 400 1 50 1 1190
1N4731A 4.085 4.3 4.515 58 9 400 1 10 1 1070
1N4732A 4.465 4.7 4.935 53 8 500 1 10 1 970
1N4733A 4.845 5.1 5.355 49 7 550 1 10 1 890
1N4734A 5.32 5.6 5.88 45 5 600 1 10 2 810
1N4735A 5.89 6.2 6.51 41 2 700 1 10 3 730
1N4736A 6.46 6.8 7.14 37 3.5 700 1 10 4 660
1N4737A 7.125 7.5 7.875 34 4 700 0.5 10 5 605
1N4738A 7.79 8.2 8.61 31 4.5 700 0.5 10 6 550
1N4739A 8.645 9.1 9.555 28 5 700 0.5 10 7 500
1N4740A 9.5 10 10.5 25 7 700 0.25 10 7.6 454
1N4741A 10.45 11 11.55 23 8 700 0.25 5 8.4 414
1N4742A 11.4 12 12.6 21 9 700 0.25 5 9.1 380
2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
1N4728A - 1N4758A Rev. H3 1