23 mils 15 mils 15 mils 23 mils 209 design data metallization: top: (anode)......................al back: (cathode)............ ...au al thickness ............25,000 ? min gold thickness ... .....4,000 ? 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, except anode pad where tolerance is + 0.1 mils. ? 1n5518b thru 1n5546b available in janhc and jankc per mil-prf-19500/437 ? zener diode chips ? all junctions completely protected with silicon dioxide ? electrically equivalent to 1n5518b thru 1n5546b ? 0.5 watt capability with proper heat sinking ? compatible with all wire bonding and die attach techniques, with the exception of solder reflow cd5518b thru cd5546b maximum ratings operating temperature: -65c to +175c storage temperature: -65c to +175c forward voltage @ 200 ma: 1.5 volts maximum electrical characteristics @ 25c, unless otherwise speci?ed nominal max. reverse jedec zener max. zener leakage current regulation low type voltage test impedance factor v z number v z @ l zt current z zt @ l zt l r v r 3v z current volts l z t ohms adc volts l zl (note 1) madc (note 2) volts (note 3) madc cd5518b 3.3 20 26 5.0 1.0 0.90 2.0 cd5519b 3.6 20 24 3.0 1.0 0.90 2.0 cd5520b 3.9 20 22 1.0 1.0 0.90 2.0 cd5521b 4.3 20 18 3.0 1.5 0.75 2.0 cd5522b 4.7 10 22 2.0 2.0 0.60 1.0 cd5523b 5.1 5.0 26 2.0 2.5 0.65 0.25 cd5524b 5.6 3.0 30 2.0 3.5 0.30 0.25 cd5525b 6.2 1.0 30 1.0 5.0 0.20 0.01 cd5526b 6.8 1.0 30 1.0 6.2 0.10 0.01 cd5527b 7.5 1.0 35 0.5 6.8 0.05 0.01 cd5528b 8.2 1.0 40 0.5 7.5 0.05 0.01 cd5529b 9.1 1.0 45 0.1 8.2 0.05 0.01 cd5530b 10.0 1.0 60 0.05 9.1 0.10 0.01 cd5531b 11.0 1.0 80 0.05 9.9 0.20 0.01 cd5532b 12.0 1.0 90 0.05 10.8 0.20 0.01 cd5533b 13.0 1.0 90 0.01 11.7 0.20 0.01 cd5534b 14.0 1.0 100 0.01 12.6 0.20 0.01 cd5535b 15.0 1.0 100 0.01 13.5 0.20 0.01 cd5536b 16.0 1.0 100 0.01 14.4 0.20 0.01 cd5537b 17.0 1.0 100 0.01 15.3 0.20 0.10 cd5538b 18.0 1.0 100 0.01 16.2 0.20 0.01 cd5539b 19.0 1.0 100 0.01 17.1 0.20 0.01 cd5540b 20.0 1.0 100 0.01 18.0 0.20 0.01 cd5541b 22.0 1.0 100 0.01 19.8 0.25 0.01 cd5542b 24.0 1.0 100 0.01 21.6 0.30 0.01 CD5543B 25.0 1.0 100 0.01 22.4 0.35 0.01 cd5544b 28.0 1.0 100 0.01 25.2 0.40 0.01 cd5545b 30.0 1.0 100 0.01 27.0 0.45 0.01 cd5546b 33.0 1.0 100 0.01 29.7 0.50 0.01 note 1 suffix ?b? voltage range equals nominal zener voltage + 5%. suffix ?a? equals + 10%. no suffix equals + 20%. zener voltage is read using a pulse measurement, 10 milliseconds maximum. "c" suffix = + 2% and "d" suffix = + 1%. note 2 zener impedance is derived by superimposing on l zt a 60hz rms a.c. current equal to 10% of l zt . note 3 3vz is the maximum difference between v z @ 1 zt and v z at 1 zl measured with the device junction in thermal equilibrium at an ambient temperature of +25 + 3c. backside is cathode 6 lake street, lawrence, massachusetts 01841 phone (978) 620-2600 fax (978) 689-0803 website: http://www.microsemi.com
210 cd5518b thru cd5546b .1 .2 .3 .4 .5 1 2 5 10 20 30 40 50 100 operating current l zt (ma) figure 3 zener impedance vs. operating current 1000 500 400 300 200 100 50 40 30 20 10 5 4 3 2 1 zener impedance z zt (ohms) 3.3 volt 5.1 volt 27 volt 11 volt 6.2 volt
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