stabilizing clipping circuits with high power rating. Standard Zener v
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4728.ZM 4764 SILICON PLANAR POWER ZENER DIODES
stabilizing clipping circuits with high power rating. Standard Zener voltage tolerance ±10%. suffix tolerance suffix tolerance. Other tolerances available upon request. LL-41
These diodes also available DO-41 case with type designation 1N4728.1N4764
Symbol Zener Current Table "Characteristics" Power Dissipation Junction Temperature Storage Temperature Range
Value
Unit
Ptot
+175
Valid provided that electrodes kept ambient temperature.
Characteristics Tamb 25oC
Symbol Thermal Resistance Junction Ambient Forward Voltage 200mA
Min.
Typ.
Max. 1701)
Unit
RthA
Valid provided that electrodes kept ambient temperature.
SEMTECH ELECTRONICS LTD.
(Subsidiary Sino-Tech International Holdings Limited, company listed Hong Kong Stock Exchange, Stock Code: 724)
Dated 10/05/2005
4728.ZM 4764
Nominal Zener voltage3) TYPE
ZM4728 ZM4729 ZM4730 ZM4731 ZM4732 ZM4733 ZM4734 ZM4735 ZM4736 ZM4737 ZM4738 ZM4739 ZM4740 ZM4741 ZM4742 ZM4743 ZM4744 ZM4745 ZM4746 ZM4747 ZM4748 ZM4749 ZM4750 ZM4751 ZM4752 ZM4753 ZM4754 ZM4755 ZM4756 ZM4757 ZM4758 ZM4759 ZM4760 ZM4761 ZM4762 ZM4763 ZM4764
Test current
Maximum Zener Impedance1)
Maximum reverse leakage current
Surge current
Maximum regulator current2)
IZTmA
15.5 12.5 11.5 10.5
1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 3000 3000 3000
IZKmA
0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8 42.6 47.1 51.7 56.0 62.2 69.2
25oC
1375 1260 1190 1070
IZMmA
Zener Impedance derived from voltage which results when current having value equal Zener current (IZT superimposed Zener Impedance measured points insure sharp knee breakdown curve eliminate unstable units. Valid provided that electrodes kept ambient temperature. Measured under thermal equilibrium test conditions.
SEMTECH ELECTRONICS LTD.
(Subsidiary Sino-Tech International Holdings Limited, company listed Hong Kong Stock Exchange, Stock Code: 724)
Dated 10/05/2005
Tested with pulses
4728.ZM 4764
Admissible power dissipation versus ambient temperature
Valid provided that electrodes kept ambient temperature
ZM4728.
Tamb
SEMTECH ELECTRONICS LTD.
(Subsidiary Sino-Tech International Holdings Limited, company listed Hong Kong Stock Exchange, Stock Code: 724)
Dated 10/05/2005
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