5.3? 0.2 0.4 ? 0.1 |?2.4?0.15 cathode indification silicon planar power zener diodes for use in stabilizing and clipping circuits with high power rating. standard zener voltage tolerance is 10%. add case:melf, glass case terminals: solderable per mil-std-202, method 208 polarity: cathode band marking: type number approx. weight: 0.25 grams. forw ard voltage at i f =200ma ratings at 25 ambient temperature unless otherwise specified. z-current i z p v /v z unit value symbol suffix "a" for 5% tolerance. other zener voltage and tolerances are available upon request. power dissipation: 1.0 w melf w zener current (see table "characteristics") junction temperature t j 175 1) symbol v f unit max ty p min 1.2 v storage temperature range t s -55---+175 pow er dissipation @ t amb 50 p diss 1.0 1) maximum ratings and electrical characteristics k/w 170 r thja junction ambient i=9.5mm(3/8 ), t l =constant ma 1)valid provided that electrodes re kept at ambient temperature. dimensions in millimeters DL4728-dl4764 zener diode s features mechanical data http://www.luguang.cn mail:lge@luguang.cn
nominal zener voltage 1) tes t current vz@i zt i zt i zt @z zt z zk @i zk (v) (ma) ( )( ) DL4728 3.3 76 10 400 dl4729 3.6 69 10 400 dl4730 3.9 64 9 400 dl4731 4.3 58 9 400 dl4732 4.7 53 8 500 dl4733 5.1 49 7 550 dl4734 5.6 45 5 600 dl4735 6.2 41 2 700 dl4736 6.8 37 3.5 700 dl4737 7.5 34 4.0 700 dl4738 8.2 31 4.5 700 dl4739 9.1 28 5.0 700 dl4740 10 25 7 700 dl4741 11 23 8 700 dl4742 12 21 9 700 dl4743 13 19 10 700 dl4744 15 17 14 700 dl4745 16 15.5 16 700 dl4746 18 14 20 750 dl4747 20 12.5 22 750 dl4748 22 11.5 23 750 dl4749 24 10.5 25 750 dl4750 27 9.5 35 750 dl4751 30 8.5 40 1000 dl4752 33 7.5 45 1000 dl4753 36 7.0 50 1000 dl4754 39 6.5 60 1000 dl4755 43 6.0 70 1500 dl4756 47 5.5 80 1500 dl4757 51 5.0 95 1500 dl4758 56 4.5 110 2000 dl4759 62 4.0 125 2000 dl4760 68 3.7 150 2000 dl4761 75 3.3 175 2000 dl4762 82 3.0 200 3000 dl4763 91 2.8 250 3000 dl4764 100 2.5 350 3000 45 41 27.4 125 22.8 170 1)based on dc_measurement at theral equilibrium while maitaining the lead temperature (t l ) at 30 +1 ,9.5mm(3/8")f rom the diode body . 2)valid prov ided that electrodes at a distance of 10 mm f orm case kept at ambient temperature. *)additionnal measurement of v oltage gruup 9v 1 to 75 at 95% v zmin 35na at t j 25 0.5 1.0 1.0 1.0 1.0 0.5 0.5 i zk (ma) 1.0 100 515.2 5 5 57 0.25 5 13.7 250 50 0.25 5 12.2 285 61 0.25 5 9.9 344 69 0.25 5 304 11.4 83 59.1380 76 58.4414 29.7 115 95 19 32.7 110 35.8 0.25 5 0.25 5 0.25 5 5 25.1 135 150 225 16.7 205 20.6 18.2 730 660 970 4 890 2 3 1 810 1260 1190 1070 1 1 1 1380 1 1.0 1.0 1.0 100 50 10 10 10 10 10 10 10 10 38 34 30 10 605 190 1 550 500 454 27 25 23 22 121 110 100 91 234 133 217 193 178 462 146 electrical characteristics (ta=25 ) type max s ur ge current 8.3ms max imum regulator current 2) i zm @t amb =50 i r @t amb =25 1.0 0.25 0.25 0.25 0.25 0.25 0.25 0.25 10 252 max imum dy namic impedanc e i r ( a) @v r (ma) (ma) max imum r ev er s e leakage current 276 (v) 0.25 0.25 5 0.25 5 5 6 7 7.6 5 18 0.25 5 42.6 80 16 0.25 5 38.8 90 14 0.25 5 51.7 65 13 0.25 5 47.1 70 12 0.25 5 62.2 55 11 0.25 5 56.0 60 0.25 5 69.2 50 0.25 5 79.0 45 10 9 DL4728-dl4764 zener diode s
fi g. 1 -- breakdown characteri sti cs fi g. 2 -- admi ssi ble power di ssi pati on versus ambi ent temperature w 1.0 0.8 0.6 0.2 0.4 0 0 100 200 ?? p tot t amb ma 0 51 0 i z 20 15 30 v 25 v z 20 40 60 80 100 DL4728 dl4731 dl4732 dl4733 dl 4735 dl 4739 dl 4741 dl 4742 dl 4744 dl 4747 dl 4748 dl 4749 dl 4750 DL4728-dl4764 zener diode s ratings and charactieristic curves http://www.luguang.cn mail:lge@luguang.cn
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