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| * 8.5 VOLT NOMINAL ZENER VOLTAGE + 5% * TEMPERATURE COMPENSATED ZENER REFERENCE DIODES * LOW CURRENT RANGE: 0.5 AND 1.0 mA * METALLURGICALLY BONDED * DOUBLE PLUG CONSTRUCTION 1N4775 thru 1N4784A MAXIMUM RATINGS Operating Temperature: -65C to +175C Storage Temperature: -65C to +175C DC Power Dissipation: 500mW @ +50C Power Derating: 4 mW / C above +50C REVERSE LEAKAGE CURRENT lR = 10 A @ 25C & VR = 6 Vdc ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise speci1/2ed. JEDEC TYPE NUMBER ZENER VOLTAGE vz @ I ZT ZENER TEST CURRENT I ZT MAXIMUM DYNAMIC IMPEDANCE ZZT (Note 1) VOLTAGE TEMPERATURE TEMPERATURE RANGE STABILITY V ZT (Note 2) mV 64 132 32 66 13 26 6.4 13 3.2 6.6 64 132 32 66 13 26 6.4 13 3.2 6.6 C 0 to + 75 -55 to +100 0 to + 75 -55 to +100 0 to + 75 -55 to +100 0 to + 75 -55 to +100 0 to + 75 -55 to +100 0 to + 75 -55 to +100 0 to + 75 -55 to +100 0 to + 75 -55 to +100 0 to + 75 -55 to +100 0 to + 75 -55 to +100 EFFECTIVE TEMPERATURE COEFFICIENT (Note 3) VOLTS 1N4775 1N4775A 1N4776 1N4776A 1N4777 1N4777A 1N4778 1N4778A 1N4779 1N4779A 1N4780 1N4780A 1N4781 1N4781A 1N4782 1N4782A 1N4783 1N4783A 1N4784 1N4784A 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 mA 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 OHMS 200 200 200 200 200 200 200 200 200 200 100 100 100 100 100 100 100 100 100 100 % / C 0.01 0.01 0.005 0.005 0.002 0.002 0.001 0.001 0.0005 0.0005 0.01 0.01 0.005 0.005 0.002 0.002 0.001 0.001 0.0005 0.0005 FIGURE 1 DESIGN DATA CASE: Hermetically sealed glass case. DO - 35 outline. LEAD MATERIAL: Copper clad steel. LEAD FINISH: Tin / Lead POLARITY: Diode to be operated with the banded (cathode) end positive. MOUNTING POSITION: ANY. NOTE 1 Zener impedance is derived by superimposing on lZT A 60Hz rms a.c. current equal to 10% of lZT. The maximum allowable change observed over the entire temperature range i.e., the diode voltage will not exceed the speci1/2ed mV at any discrete temperature between the established limits, per JEDEC standard No.5. Zener voltage range equals 8.5 volts + 5%. NOTE 2 NOTE 3 6 LAKE STREET, LAWRENCE, MASSACHUSETTS 01841 PHONE (978) 620-2600 FAX (978) 689-0803 WEBSITE: http://www.microsemi.com 51 1N4775 thru 1N4784A Pd, Rated Power Dissipation (mW) 600 500 400 300 200 100 0 0 25 50 75 100 125 150 175 TL, Lead temperature (C) 3/8" from body FIGURE 2 POWER DERATING CURVE +.0015 CHANGE IN TEMPERATURE COEFFICIENT ( %/C) +.0010 +.0005 0 -.0005 -.0010 -.0015 0.5 1.0 1.5 OPERATING CURRENT lZT (mA) 2.0 FIGURE 4 TYPICAL CHANGE OF TEMPERATURE COEFFICIENT WITH CHANGE IN OPERATING CURRENT 52 This datasheet has been download from: www..com Datasheets for electronics components. |
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