稳压二极管

Zener Diodes

DO-204AL (DO-41 Glass)

max. .161 (4.1)min. 1.102 (28.0)min. 1.102 (28.0)Features

• Silicon Planar Power Zener Diodes

• For use in stabilizing and clipping circuits withhigh power rating.

• Standard Zener voltage tolerance is ±10%. Addsuffix “A” for ±5% tolerance. Other Zener voltagesand tolerances are available upon request.

• These diodes are also available in the MELF casewith type designation ZM4728 thru ZM4764

• For bidirectional product, contact local TechnicalSales office.

max.∅0.102 (2.6)Cathode MarkDimensions in inchesand (millimeters)Mechanical Data

Case:DO-41 Glass CaseWeight:approx. 0.35g

Packaging Codes/Options:

D9/5Kper 13” reel (52mm tape), 10K/boxE1/5K per Ammo mag. (52mm tape), 10K/box

max.∅0.034 (0.86)Maximum Ratings & Thermal Characteristics Ratings at 25°C ambient temperature unless otherwise specified.ParameterZener CurrentPower Dissipation at Tamb= 50°CThermal Resistance Junction to Ambient AirJunction TemperatureStorage Temperature RangePtotRΘJATjTSSymbolValueSee Next Page1.0(1) 170(1)200–65 to +200W°C/W°C°CUnitNote:(1) Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature.3/30/00

1N4728 thru 1N4764

Zener Diodes

Electrical Characteristics(T

NominalZenervoltage(3)

atIZTVZ(V)

Testcurrent

A

= 25°C unless otherwise noted). Maximum VF= 1.2V at IF= 200mA

Maximum Zener impedance(1)ZZTat IZT(Ω)

atIZK(mA)

Maximum

reverse leakage currentIR(µA)

at VR(V)

SurgecurrentatTA= 25°CIR(mA)

TypeIZT(mA)

ZZK(Ω)

Maximumregulatorcurrent(2)

atTA= 50°CIZM(mA)

1N47281N47291N47301N47311N47321N47331N47341N47351N47361N47371N47381N47391N47401N47411N47421N47431N47441N47451N47461N47471N47481N47491N47501N47511N47521N47531N47541N47551N47561N47571N47581N47591N47601N47611N47621N47631N47643.33.63.94.34.75.15.66.26.87.58.29.1101112131516182022242730333639434751566268758291100766964585349454137343128252321191715.51412.511.510.59.58.57.57.06.56.05.55.04.54.03.73.33.02.82.510109987523.54.04.55.0789101416202223253540455060708095110125150175200250350400400400400500550600700700700700700700700700700700700750750750750750100010001000100015001500150020002000200020003000300030001.01.01.01.01.01.01.01.01.00.50.50.50.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.2510010050101010101010101010105555555555555555555555551111112345677.68.49.19.911.412.213.715.216.718.220.622.825.127.429.732.735.838.842.647.151.756.062.269.276.013801260119010709708908107306606055505004544143803443042852502252051901701501351251151109590807065605550452762522342171931781621461331211101009183766961575045413834302725232219181614131211109

Notes:

(1) The Zener impedance is derived from the 1KHZAC voltage which results when an AC current having an RMS value equal to 10% of the Zener current (IZTor

IZK) is superimposed on IZTor IZK. 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 at a distance of 10mm from case are kept at ambient temperature(3) Measured under thermal equilibrium and DC test conditions

1N4728 thru 1N4764

Zener Diodes

Ratings and

Characteristic Curves(T

A

= 25°C unless otherwise noted)

1N4728 ... 1N4764