ZM4728A to ZM4764A
www.vishay.com
Vishay Semiconductors
Rev. 1.5, 17-Oct-12
2
Document Number: 85786
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Notes
(1)
The Zener impedance is derived from the 1 kHz AC voltage which results when an AC current having an RMS value equal to 10 % of the
zener current (I
ZT1
or I
ZT2
) is superimposed on I
ZT1
or I
ZT2
. Zener impedance is measured at two points to insure a sharp knee on the
breakdown curve and to eliminate unstable units
(2)
Valid provided that electrodes are kept at ambient temperature
(3)
Measured under thermal equilibrium and DC test conditions
(4)
Width of the test pulse is 8.3 ms
ELECTRICAL CHARACTERISTICS (T
amb
= 25 °C, unless otherwise specified)
PART NUMBER
ZENER
VOLTAGE
RANGE
(3)
TEST
CURRENT
REVERSE
LEAKAGE
CURRENT
DYNAMIC
RESISTANCE
(1)
f = 1 kHz
SURGE
CURRENT
(4)
REGULATOR
CURRENT
(2)
V
Z
at I
ZT1
I
ZT1
I
ZT2
I
R
at V
R
Z
Z
at I
ZT1
Z
ZK
at I
ZT2
I
ZSM
I
ZM
V mA μA V mA mA
NOM. MAX. MAX. MAX. MAX.
ZM4728A 3.3 76 1 100 1 10 400 1380 276
ZM4729A 3.6 69 1 100 1 10 400 1260 252
ZM4730A 3.9 64 1 50 1 9 400 1190 234
ZM4731A 4.3 58 1 10 1 9 400 1070 217
ZM4732A 4.7 53 1 10 1 8 500 970 193
ZM4733A 5.1 49 1 10 1 7 550 890 178
ZM4734A 5.6 45 1 10 2 5 600 810 162
ZM4735A 6.2 41 1 10 3 2 700 730 146
ZM4736A 6.8 37 1 10 4 3.5 700 660 133
ZM4737A 7.5 34 0.5 10 5 4 700 605 121
ZM4738A 8.2 31 0.5 10 6 4.5 700 550 110
ZM4739A 9.1 28 0.5 10 7 5 700 500 100
ZM4740A 10 25 0.25 10 7.6 7 700 454 91
ZM4741A 11 23 0.25 5 8.4 8 700 414 83
ZM4742A 12 21 0.25 5 9.1 9 700 380 76
ZM4743A 13 19 0.25 5 9.9 10 700 344 69
ZM4744A 15 17 0.25 5 11.4 14 700 304 61
ZM4745A 16 15.5 0.25 5 12.2 16 700 285 57
ZM4746A 18 14 0.25 5 13.7 20 750 250 50
ZM4747A 20 12.5 0.25 5 15.2 22 750 225 45
ZM4748A 22 11.5 0.25 5 16.7 23 750 205 41
ZM4749A 24 10.5 0.25 5 18.2 25 750 190 38
ZM4750A 27 9.5 0.25 5 20.6 35 750 170 34
ZM4751A 30 8.5 0.25 5 22.8 40 1000 150 30
ZM4752A 33 7.5 0.25 5 25.1 45 1000 135 27
ZM4753A 36 7 0.25 5 27.4 50 1000 125 25
ZM4754A 39 6.5 0.25 5 29.7 60 1000 115 23
ZM4755A 43 6 0.25 5 32.7 70 1500 110 22
ZM4756A 47 5.5 0.25 5 35.8 80 1500 95 19
ZM4757A 51 5 0.25 5 38.8 95 1500 90 18
ZM4758A 56 4.5 0.25 5 42.6 110 2000 80 16
ZM4759A 62 4 0.25 5 47.1 125 2000 70 14
ZM4760A 68 3.7 0.25 5 51.7 150 2000 65 13
ZM4761A 75 3.3 0.25 5 56 175 2000 60 12
ZM4762A 82 3 0.25 5 62.2 200 3000 55 11
ZM4763A 91 2.8 0.25 5 69.2 250 3000 50 10
ZM4764A 100 2.5 0.25 5 76 350 3000 45 9
