• 1N962B THRU 1N986B AVAILABLE IN JANHC AND JANKC PER MIL-PRF-19500/117 CD957B thru • ZENER DIODE CHIPS CD986B • 0.5 WATT CAPABILITY WITH PROPER HEAT SINKING • ALL JUNCTIONS COMPLETELY PROTECTED WITH SILICON DIOXIDE • COMPATIBLE WITH ALL WIRE BONDING AND DIE ATTACH TECHNIQUES, WITH THE EXCEPTION OF SOLDER REFLOW 23 MILS 15 MILS MAXIMUM RATINGS 15 MILS 23 MILS Operating Temperature: -65°C to +175°C Storage Temperature: -65°C to +175°C Forward Voltage @ 200mA: 1.5 volts maximum ELECTRICAL CHARACTERISTICS @ 25°C CDI TYPE NUMBER NOMINAL ZENER VOLTAGE VZ (NOTE 1) (NOTE 2) ZENER TEST CURRENT l ZT MAXIMUM ZENER IMPEDANCE (NOTE 3) ZZT @ l ZT MAX. DC ZENER CURRENT l ZM MAX. REVERSE LEAKAGE CURRENT lR @ VR Backside is Cathode ZZK @ l ZK VOLTS mA OHMS OHMS mA µA VOLTS CD957B CD958B CD959B CD960B CD961B 6.8 7.5 8.2 9.1 10 18.5 16.5 15.0 14.0 12.5 4.5 5.5 6.5 7.5 8.5 700 700 700 700 700 1.0 .5 .5 .5 .25 55 50 45 41 38 5.0 5.0 5.0 5.0 2.0 5.2 5.7 6.2 6.9 7.6 CD962B CD963B CD964B CD965B CD966B 11 12 13 15 16 11.5 10.5 9.5 8.5 7.8 9.5 11.5 13 16 17 700 700 700 700 700 .25 .25 .25 .25 .25 32 31 28 25 24 1.0 1.0 0.5 0.5 0.5 8.4 9.1 9.9 11 12 CD967B CD968B CD969B CD970B CD971B 18 20 22 24 27 7.0 6.2 5.6 5.2 4.6 21 25 29 33 41 750 750 750 750 750 .25 .25 .25 .25 .25 20 18 16 15 13 0.5 0.5 0.5 0.5 0.5 14 15 17 18 21 METALLIZATION: Top: (Anode) .....................Al Back: (Cathode) ...............Au CD972B CD973B CD974B CD975B CD976B 30 33 36 39 43 4.2 3.8 3.4 3.2 3.0 49 58 70 90 93 1000 1000 1000 1000 1500 .25 .25 .25 .25 .25 12 11 10 9.5 8.8 0.5 0.5 0.5 0.5 0.5 23 25 27 30 33 AL THICKNESS. ..........25,000 Å Min CD977B CD978B CD979B CD980B CD981B 47 51 56 62 68 2.7 2.5 2.2 2.0 1.8 105 125 150 185 230 1500 1500 2000 2000 2000 .25 .25 .25 .25 .25 7.9 7.4 6.8 6.0 5.5 0.5 0.5 0.5 0.5 0.5 36 39 43 47 52 CD982B CD983B CD984B CD985B CD986B 75 82 91 100 110 1.7 1.5 1.4 1.3 1.1 270 330 400 500 750 2000 3000 3000 3000 4000 .25 .25 .25 .25 .25 5.0 4.6 4.1 3.7 3.3 0.5 0.5 0.5 0.5 0.5 56 62 69 76 84 mA NOTE 1 Zener voltage range equals nominal voltage + 5% for “B” Suffix. “A” Suffix denotes + 10%, No Suffix denotes + 20%. "C" suffix = + 2% and "D" suffix = + 1%. NOTE 2 Zener voltage is read using a pulse measurement, 10 milliseconds maximum. NOTE 3 Zener impedance is derived by superimposing on 1ZT A 60Hz rms a.c. current equal to 10% of 1ZT FIGURE 1 DESIGN DATA GOLD THICKNESS. ......4,000 Å Min CHIP THICKNESS. ................10 Mils CIRCUIT LAYOUT DATA: 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: [email protected] CD957B thru CD986B 1000 500 400 300 3. 3 VO LT 27 100 VO LT 1 5. LT VO ZENER IMPEDANCE ZZT (OHMS) 200 50 40 30 11 20 VO LT 10 6.2 VO LT 5 4 3 2 1 .1 .2 .3 .4 .5 1 2 5 10 20 OPERATING CURRENT lZT (mA) 30 40 50 100 FIGURE 3 ZENER IMPEDANCE VS. OPERATING CURRENT