* ALL JUNCTIONS COMPLETELY PROTECTED WITH SILICON DIOXIDE CD3154 thru * 8.4 VOLT NOMINAL ZENER VOLTAGE + 5% CD3156 * MONOLITHIC TEMPERATURE COMPENSATED ZENER REFERENCE CHIPS * ELECTRICALLY SIMILAR TO 1N3154 THRU 1N3156 * COMPATIBLE WITH ALL WIRE BONDING AND DIE ATTACH TECHNIQUES, WITH THE EXCEPTION OF SOLDER REFLOW 38 MILS 23 MILS 38 MILS 10 MILS MAXIMUM RATINGS 11 MILS 23 MILS Operating Temperature: -65C to +175C Storage Temperature: -65C to +175C FIGURE 1 ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise specified. JEDEC TYPE NUMBER ZENER VOLTAGE MAXIMUM MAXIMUM VOLTAGE TEMPERATURE ZENER TEMPERATURE RANGE IMPEDANCE STABILITY ZZT V ZT MAXIMUM V @I ZT ZT ZENER TEST CURRENT I ZT VOLTS mA OHMS mV CD3154 8.00-8.80 10 25 130 -55 to + 100 0.01 CD3155 8.00-8.80 10 25 65 -55 to + 100 0.005 CD3156 8.00-8.80 10 25 26 -55 to + 100 0.002 (Note 1) EFFECTIVE TEMPERATURE COEFFICIENT (Note 2) C % / C 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 1 Zener impedance is derived by superimposing on lZT @ 60Hz rms a.c. current equal to 10% of lZT. NOTE 2 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. 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 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 CD3154 CD3156 600 Pd, Rated Power Dissipation (mW) thru 500 400 300 200 100 0 0 25 50 75 100 125 150 TL, Ambient temperature (C) 100 FIGURE 2 50 10 5 1 8 9 10 11 12 13 OPERATING CURRENT lZT (mA) FIGURE 3 ZENER IMPEDANCE VS. OPERATING CURRENT +.0015 CHANGE IN TEMPERATURE COEFFICIENT ( %/C) ZENER IMPEDANCE ZZT (OHMS) POWER DERATING CURVE +.0010 +.0005 0 -.0005 -.0010 -.0015 6 8 10 12 OPERATING CURRENT lZT (mA) 14 FIGURE 4 TYPICAL CHANGE OF TEMPERATURE COEFFICIENT WITH CHANGE IN OPERATING CURRENT 175