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| * MONOLITHIC TEMPERATURE COMPENSATED ZENER REFERENCE CHIPS * ALL JUNCTIONS COMPLETELY PROTECTED WITH SILICON DIOXIDE * 9.0 VOLT NOMINAL ZENER VOLTAGE + 5% * ELECTRICALLY SIMILAR TO 1N935 THRU 1N937A * COMPATIBLE WITH ALL WIRE BONDING AND DIE ATTACH TECHNIQUES, WITH THE EXCEPTION OF SOLDER REFLOW CD935 thru CD937A 38 MILS MAXIMUM RATINGS Operating Temperature: -65C to +175C Storage Temperature: -65C to +175C 38 MILS 23 MILS 23 MILS ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise specified. MAXIMUM MAXIMUM VOLTAGE ZENER TEMPERATURE IMPEDANCE STABILITY ZZT V ZT (Note 1) mA 7.5 7.5 7.5 7.5 7.5 7.5 OHMS 30 30 30 30 30 30 (Note 2) mV 67 139 34 70 13 28 C 0 to + 75 -55 to + 100 0 to + 75 -55 to + 100 0 to + 75 -55 to + 100 % / C 0.01 0.01 0.005 0.005 0.002 0.002 FIGURE 1 TYPE NUMBER ZENER VOLTAGE V ZT @I ZT ZENER TEST CURRENT I ZT TEMPERATURE EFFECTIVE RANGE TEMPERATURE COEFFICIENT DESIGN DATA METALLIZATION: Top: C (Cathode) .................Al A (Anode) .....................Al Back: .....................................Au AL THICKNESS.......25,000 A Min GOLD THICKNESS ...4,000 A Min CHIP THICKNESS .............10 Mils (Note 3) VOLTS CD935 CD935A CD936 CD936A CD937 CD937A 9.0 9.0 9.0 9.0 9.0 9.0 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 specified mV at any discrete temperature between the established limits, per JEDEC standard No.5. Zener voltage range equals 9.0 volts + 5%. NOTE 2 CIRCUIT LAYOUT DATA: Backside must be electrically isolated. Backside is not cathode. For Zener operation cathode must be operated positive with respect to anode. TOLERANCES: ALL Dimensions + 2 mils NOTE 3 22 COREY STREET, MELROSE, MASSACHUSETTS 02176 PHONE (781) 665-1071 FAX (781) 665-7379 WEBSITE: http://www.cdi-diodes.com E-mail: mail@cdi-diodes.com 8 MILS 10 MILS CD935 1000 500 ZENER IMPEDANCE ZZT (OHMS) thru CD937A 200 100 50 20 10 5 6 7 8 OPERATING CURRENT lZT (mA) 9 10 FIGURE 2 ZENER IMPEDANCE VS. OPERATING CURRENT +.0015 CHANGE IN TEMPERATURE COEFFICIENT ( %/C) +.0010 +.0005 0 -.0005 -.0010 -.0015 5 6 7 8 OPERATING CURRENT lZT (mA) 9 10 FIGURE 3 TYPICAL CHANGE OF TEMPERATURE COEFFICIENT WITH CHANGE IN OPERATING CURRENT |
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