p age:p 3 - p 1 glass - encapsulate diodes guangdong hottech industrial co,. ltd. zener diodes mechanical dat a cas e:do - 41, glass case terminals : solderable per mil - std - 20 2, method 208 polarity: cathode band marking: type number approx. weight: 0.35 grams absolute maximum ratings (ta=25 unless otherwise noted) parameter s ym bol v alue u nit p o w e r d i s s i pa t i o n @ t a m b 50 p d i s s 1 . 0 1) w z - c u rr ent i z p v / v z ma j un c t i o n te m pe r a t u r e t j 2 0 0 s t o r ag e te m pe r atu r e r ange t s - 5 5 --- + 2 0 0 j un c t i o n a m b i en t i = 9.5 mm ( 3/ 8 ) , t l = c on s tant r t h ja 1 0 0 k / w 1)valid provided that leads at a distance of 8 mm from case are kept at ambient temperature. electrical characteristics (tamb=25 unless otherwise specified) parameter s y m b o l m in t yp m ax u nit f o r w a r d v o l t ag e a t i f = 200 m a v f 1 . 2 v 1n4728-1n4764 fe a tures for use in stabilizing and clipping circuits with high power rating. standard zener voltage tolerance is 10%. add suffix "a" for 5% tolerance. 25.4 min 25.4 min 4.2 max 0.7 max 2.8 max do-41 dimensions in millimeters
p age:p 3 - p 2 glass - encapsulate diodes guangdong hottech industrial co,. ltd. 1n4728-1n4764 t y p e nominal zener voltage t est c u r r e n t m a x i m u m dynamic impedance maximum reverse leakage current m a x s u r g e c u r r e n t 8 . 3 m s max imum regulator current v z @ i zt i zt z zt @ i zt z z k @ i zk i zk i r @ v r i r @ t a m b = 2 5 i z m @ t a m b = 5 0 ( v ) ( m a ) ( ) ( ) ( m a ) ( ua ) ( v ) ( m a ) ( m a ) 1 n 4 7 28 3 . 3 7 6 1 0 4 00 1 .0 1 0 0 1 1 3 80 2 7 6 1 n 4 7 29 3 . 6 6 9 1 0 4 00 1 .0 1 0 0 1 1 2 60 2 5 2 1 n 4 7 3 0 3 .9 64 9 4 0 0 1 .0 50 1 1 1 90 2 3 4 1 n 4 7 3 1 4 .3 58 9 4 0 0 1 .0 10 1 1 0 70 2 1 7 1 n 4 7 3 2 4 .7 53 8 5 0 0 1 .0 10 1 9 7 0 1 9 3 1 n 4 7 3 3 5 .1 49 7 5 5 0 1 .0 10 1 8 9 0 1 7 8 1 n 4 7 3 4 5 .6 45 5 6 0 0 1 .0 10 2 8 1 0 4 6 2 1 n 4 7 3 5 6 .2 41 2 7 0 0 1 .0 10 3 7 3 0 1 4 6 1 n 4 7 3 6 6 .8 37 3 .5 7 0 0 1 .0 10 4 6 6 0 1 3 3 1 n 4 7 3 7 7 .5 34 4 .0 7 0 0 0 .5 10 5 6 0 5 1 2 1 1 n 4 7 3 8 8 .2 31 4 .5 7 0 0 0 .5 10 6 5 5 0 1 1 0 1 n 4 7 3 9 9 .1 28 5 .0 7 0 0 0 .5 10 7 5 0 0 1 0 0 1 n 4 7 4 0 10 25 7 7 0 0 0 . 25 10 7 .6 4 5 4 91 1 n 4 7 4 1 11 23 8 7 0 0 0 . 25 5 8 . 4 4 1 4 83 1 n 4 7 4 2 12 21 9 7 0 0 0 . 25 5 9 . 1 3 8 0 7 6 1 n 4 7 4 3 13 19 10 7 0 0 0 . 25 5 9 .9 3 4 4 69 1 n 4 7 4 4 15 17 14 7 0 0 0 . 25 5 1 1 . 4 3 0 4 61 1 n 4 7 4 5 16 1 5 . 5 16 7 0 0 0 . 25 5 1 2 . 2 2 8 5 57 1 n 4 7 4 6 18 14 20 7 5 0 0 . 2 5 5 1 3 . 7 2 5 0 50 1 n 4 7 4 7 20 1 2 . 5 22 7 5 0 0 . 25 5 1 5 . 2 2 2 5 45 1 n 4 7 4 8 22 1 1 . 5 23 7 5 0 0 . 25 5 1 6 . 7 2 0 5 41 1 n 4 7 4 9 24 1 0 . 5 25 7 5 0 0 . 25 5 1 8 . 2 1 9 0 38 1 n 4 7 5 0 27 9 .5 35 7 5 0 0 . 25 5 2 0 . 6 1 7 0 34 1 n 4 7 5 1 30 8 .5 40 1 0 00 0 . 25 5 2 2 . 8 1 5 0 30 1 n 4 7 5 2 33 7 .5 45 1 0 00 0 . 25 5 2 5 . 1 1 3 5 27 1 n 4 7 5 3 36 7 .0 50 1 0 00 0 . 25 5 2 7 . 4 1 2 5 25 1 n 4 7 5 4 39 6 .5 60 1 0 00 0 . 25 5 2 9 . 7 1 1 5 23 1 n 4 7 5 5 43 6 .0 70 1 5 00 0 . 25 5 3 2 . 7 1 1 0 22 1 n 4 7 5 6 47 5 .5 80 1 5 00 0 . 25 5 3 5 . 8 95 19 1 n 4 7 5 7 51 5 .0 95 1 5 00 0 . 25 5 3 8 . 8 90 18 1 n 4 7 5 8 56 4 .5 1 1 0 2 0 00 0 . 25 5 4 2 . 6 8 0 16 1 n 4 7 5 9 62 4 .0 1 2 5 2 0 00 0 . 25 5 4 7 . 1 70 14 1 n 4 7 6 0 68 3 .7 1 5 0 2 0 00 0 . 25 5 5 1 . 7 65 13 1 n 4 7 6 1 75 3 .3 1 7 5 2 0 00 0 . 25 5 5 6 . 0 60 12 1 n 4 7 6 2 82 3 .0 2 0 0 3 0 00 0 . 25 5 6 2 . 2 55 11 1 n 4 7 6 3 91 2 .8 2 5 0 3 0 00 0 . 25 5 6 9 . 2 50 10 1 n 4 7 6 4 1 0 0 2 .5 3 5 0 3 0 00 0 . 25 5 7 9. 0 45 9 the zener impedance is derived from the 60 hz ac voltage which results when an ac current having an rms value equal , to 10% of the zener current (izt or izk) is superimposed on izt or izk. zener impedance is measured at two points to insure , a sharp knee on the breakdown curve and to eliminate unstable units.
p age:p 3 - p 3 glass - encapsulate diodes guangdong hottech industrial co,. ltd. typical characteristics i n 4 7 5 8 i n 4 7 4 4 i n 4 7 4 3 0 0 10 10 ma iz 20 30 40 50 i n 4 7 4 2 20 30 40 50 i n 4 7 5 3 i n 4 7 5 1 i n 4 7 5 0 i n 4 7 5 2 i n 4 7 4 9 i n 4 7 4 8 i n 4 7 4 7 i n 4 7 4 5 i n 4 7 4 6 i n 4 7 5 5 i n 4 7 5 4 i n 4 7 5 7 i n 4 7 5 6 10 0 0 1 30 20 50 40 iz 100 70 60 90 80 ma 234 5 i n 4 7 2 8 i n 4 7 2 7 i n 4 7 3 1 i n 4 7 2 9 i n 4 7 3 0 i n 4 7 3 2 i n 4 7 3 3 i n 4 7 6 3 i n 4 7 6 2 i n 4 7 6 1 i n 4 7 6 0 i n 4 7 5 9 vz 60 70 80 90 i n 4 7 6 4 100 110 120 in... t j =25 c o i n 4 7 4 0 vz 6 7 i n 4 7 3 6 i n 4 7 3 7 89 i n 4 7 3 8 i n 4 7 3 9 i n 4 7 3 5 i n 4 7 3 4 10 11 i n 4 7 4 1 12 in... t j =25 c o 100 0 0 0.2 0.4 0.8 0.6 1.0 2 00 t a , ambient temperature fig. 1 power dissipation vs ambient temperature p d . total power dissipation (w) r ja thermal resistance junction to ambient (c/w) i, lead length (mm) fig. 2 typical thermal resistance vs. lead length 0 05 1015 50 100 150 30 20 25 200 250 v r =30v v r =20v v r =5v v r =2v v r =0v f=1mhz t a =25c 50 vz, zener voltage (v) fig. 3 junction capacitance vs zener voltage c j , diode capacitance (pf) 100 1 010203040 10 1000 differential zener impedance ( ) 100 2ma vz, zener voltage (v) fig. 4 typical zener impedance vs. zener voltage 60 1 1 10ma 20ma 10 5ma 10 100 iz=1ma 1000 1n4728-1n4764
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