6 lake street, lawrence, massachusetts 01841 phone (978) 620-2600 fax (978) 689-0803 website: http://www.microsemi.com 131 cdi zenner zener maximum voltage temperature effective type voltage test dynamic temperature range temperature number current impedance stability coefficient vz @ i zt i zt z zt 3 v zt maximum (note 3) (note 1) (note 2) volts ma ohms mv c % / c cdll4775 8.5 0.5 200 64 0 to + 75 0.01 cdll4775a 8.5 0.5 200 132 -55 to + 100 0.01 cdll4776 8.5 0.5 200 32 0 to + 75 0.005 cdll4776a 8.5 0.5 200 66 -55 to + 100 0.005 cdll4777 8.5 0.5 200 13 0 to + 75 0.002 cdll4777a 8.5 0.5 200 26 -55 to + 100 0.002 cdll4778 8.5 0.5 200 6.4 0 to + 75 0.001 cdll4778a 8.5 0.5 200 13 -55 to + 100 0.001 cdll4779 8.5 0.5 200 3.2 0 to + 75 0.0005 cdll4779a 8.5 0.5 200 6.6 -55 to + 100 0.0005 cdll4780 8.5 1.0 100 64 0 to + 75 0.01 cdll4780a 8.5 1.0 100 132 -55 to + 100 0.01 cdll4781 8.5 1.0 100 32 0 to + 75 0.005 cdll4781a 8.5 1.0 100 66 -55 to + 100 0.005 cdll4782 8.5 1.0 100 13 0 to + 75 0.002 cdll4782a 8.5 1.0 100 26 -55 to + 100 0.002 CDLL4783 8.5 1.0 100 6.4 0 to + 75 0.01 CDLL4783a 8.5 1.0 100 13 -55 to + 100 0.01 cdll4784 8.5 1.0 100 3.2 0 to + 75 0.0005 cdll4784a 8.5 1.0 100 6.6 -55 to + 100 0.0005 note 1 zener impedance is derived by superimposing on l zt a 60hz rms a.c. current equal to 10% of l zt . note 2 the maximum allowable change observed over the entire temperature range i.e., the diode voltage will not exceed the speci?ed mv at any discrete temperature between the established limits, per jedec standard no.5. . note 3 zener voltage range equals 8.5 volts + 5% 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 l r = 10 a @ 25c & v r = 6vdc electrical characteristics @ 25c, unless otherwise specified. ? temperature compensated zener reference diodes ? leadless package for surface mount ? 8.5 volt nominal zener voltage + 5% ? low current range: 0.5 to 1.0 ma ? metallurgically bonded ? double plug construction cdll4775 thru cdll4784a millimeters inches dim min max min max d 1.60 1.70 0.063 0.067 f 0.41 0.55 0.016 0.022 g 3.30 3.70 .130 .146 g1 2.54 ref. .100 ref. s 0.03 min. .001 min. figure 1 design data case: do-213aa , hermetically sealed glass case. (melf, sod-80, ll34) lead finish: tin / lead polarity: diode to be operated with the banded (cathode) end positive. mounting position: any. mounting surface selection: the axial coefficient of expansion (coe) of this device is approximately +6ppm/c. the coe of the mounting surface system should be selected to provide a suitable match with this device.
132 cdll4775 thru cdll4784a 0.5 1.0 1.5 2.0 operating current l zt (ma) figure 3 typical change of temperature coefficient with change in operating current +.0015 +.0010 +.0005 0 -.0005 -.0010 -.0015 0 25 50 75 100 125 150 175 t l , ambient temperature (c) figure 2 power derating curve 600 500 400 300 200 100 0 pd, rated power dissipation (mw) change in temperature coefficient ( %/c)
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