ZM4728 データシートの表示（PDF） - Kingtronics International Company
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ZM4728 Datasheet PDF : 4 Pages
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ZM4728 THRU ZM4761
Characteristics at Ta = 25℃
Type
Zener Voltage 3) Dynamic Resistance 1)
VZnom at lZT
ZZT
ZZK
at IZK
Reverse Current
IR
at VR
Maximum Surge Current 4)
at Ta = 25 ℃
Maximum Regulator Current 2)
(V) (mA) Max.(Ω) Max.(Ω) (mA) Max.(μA) (V)
IZSM (mA)
IZM (mA)
ZM4756 47
5.5
80
1500 0.25
5
35.8
95
19
ZM4757 51
5
95
1500 0.25
5
38.8
90
18
ZM4758 56
4.5
110
2000 0.25
5
42.6
80
16
ZM4759 62
4
125
2000 0.25
5
47.1
70
14
ZM4760 68
3.7
150
2000 0.25
5
51.7
65
13
ZM4761 75
3.3
175
2000 0.25
5
56
60
12
1) The dynamic resistance is derived from the 60 Hz AC voltage which results when an AC current having an RMS value equal to 10% of
the Zener Current (IZT or IZK) is superimposed on IZT or IZK. Dynamic resistance 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) Tested with pulses tp = 20 ms.
4) The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square wave or
equivalent sine wave pulse of 1/120 second duration superimposed on the test current IZT.
Breakdowm characteristics
Tj=constant (pulsed)
3
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