vishay sml4728 to sml4764a document number 85782 rev. 2, 25-mar-03 vishay semiconductors www.vishay.com 1 15811 surface mount zener diodes \ features ? plastic package has underwriters laboratory flammability classification 94 v-0 for surface mounted applications low zener impedance low regulation factor high temperature soldering guaranteed: 260 c/10 seconds at terminals standard voltage tolerance is 10 %, suffix a 5 %. mechanical data case: jedec do-214ac molded plastic over passivated junction terminals: solder plated, solderable per mil-std- 750, method 2026 polarity: color band denotes positive end (cathode) mounting position: any weight: 0.002 ounce, 64 mg packaging codes - options (antistatic): sml4728 - sml4737a: 2p - 1.8k per 7" plastic reel (12mm tape), 36k/carton 2q - 7.5k per 13" plastic reel (12mm tape), 75k/carton sml4738 - sml4764a: 61 - 1.8k per 7" plastic reel (12mm tape), 36k/carton 5a - 7.5k per 13" plastic reel (12mm tape), 75k/carton absolute maximum ratings t amb = 25 c, unless otherwise specified maximum thermal resistance t amb = 25 c, unless otherwise specified parameter te s t c o n d i t i o n symbol va lu e unit power dissipation t l = 75 c p tot 1.0 w parameter tes t co nd iti on symbol value unit maximum junction temperature t j 150 c storage temperature range t s - 65 to + 150 c
www.vishay.com 2 document number 85782 rev. 2, 25-mar-03 vishay sml4728 to sml4764a vishay semiconductors electrical characteristics 1) based on dc- measurement at thermal equilibrium 2) surge current is a non-repetitive, 8.3 ms pulse width square wave or equivalent sine-wave superimposed on i zt per jedec method partnumber device marking code nominal zener voltage te s t current maximum dynamic impedanceresistance maximum dc reverse leakage current maximum surge current v z 1) @ i zt i zt z zt @ i zt z zk @ i zk i zk i r v r i rm 2) v ma ? ma a v mapk sml4728 3p3 3.3 76 10 400 1 100 1 1380 sml4729 3p6 3.6 69 10 400 1 100 1 1260 sml4730 3p9 3.9 64 9 400 1 50 1 1190 sml4731 4p3 4.3 58 9 400 1 10 1 1070 sml4732 4p7 4.7 53 8 500 1 10 1 970 sml4733 5p1 5.1 49 7 550 1 10 1 890 sml4734 5p6 5.6 45 5 600 1 10 2 810 sml4735 6p2 6.2 41 2 700 1 10 3 730 sml4736 6p8 6.8 37 3.5 700 1 10 4 660 sml4737 7p5 7.5 34 4 700 0.5 10 5 605 sml4738 8p2 8.2 31 4.5 700 0.5 10 6 550 sml4739 9p1 9.1 28 5 700 0.5 10 7 500 sml4740 10 10 25 7 700 0.25 10 7.6 454 sml4741 11 11 23 8 700 0.25 5 8.4 414 sml4742 12 12 21 9 700 0.25 5 9.1 380 sml4743 13 13 19 10 700 0.25 5 9.9 344 sml4744 15 15 17 14 700 0.25 5 11.4 305 sml4745 16 16 15.5 16 700 0.25 5 12.2 285 sml4746 18 18 14 20 750 0.25 5 13.7 250 sml4747 20 20 12.5 22 750 0.25 5 15.2 225 sml4748 22 22 11.5 23 750 0.25 5 16.7 205 sml4749 24 24 10.5 25 750 0.25 5 18.2 190 sml4750 27 27 9.5 35 750 0.25 5 20.6 170 sml4751 30 30 8.5 40 1000 0.25 5 22.8 150 sml4752 33 33 7.5 45 1000 0.25 5 25.1 135 sml4753 36 36 7 50 1000 0.25 5 27.4 125 sml4754 39 39 6.5 60 1000 0.25 5 29.7 115 sml4755 43 43 6 70 1500 0.25 5 32.7 110 sml4756 47 47 5.5 80 1500 0.25 5 35.8 95 sml4757 51 51 5 95 1500 0.25 5 38.8 90 sml4758 56 56 4.5 110 2000 0.25 5 42.6 80 sml4759 62 62 4 125 2000 0.25 5 47.1 70 sml4760 68 68 3.7 150 2000 0.25 5 51.7 65 sml4761 75 75 3.3 175 2000 0.25 5 56 60 sml4762 82 82 3 200 3000 0.25 5 62.2 55 sml4763 91 91 2.8 250 3000 0.25 5 69.2 50 sml4764 100 100 2.5 350 3000 0.25 5 76 45
vishay sml4728 to sml4764a document number 85782 rev. 2, 25-mar-03 vishay semiconductors www.vishay.com 3 typical characteristics (t amb = 25 c unless otherwise specified) figure 1. maximum continuous power dissipation figure 2. typical zener impedance figure 3. typical temperature coefficients 25 50 75 100 125 150 175 0 0.25 0.5 0.75 1.0 terminals temperature ( c) p m(av) , average power dissipation (w) 60 h z resistive or inductive load p.c.b. mounted on 0.31 x 0.31 x 0.08" ( 8x8x 2mm) copper areas pads 17923 0.5 10 100 500 1 10 100 1,000 i zt , zener test current (ma) z z , dynamic zener impedance ( ? ) t j =25c v z = 91v v z = 56v v z = 30v v z = 6.2v 17925 0 10 20 30 40 50 60 70 80 90 100 0 10 30 50 70 90 110 v z , zener voltage (v) v z , temperature coefficient (mv/ c) tested at rated i zt 17927 figure 4. typical instantaneous forward characteristics for sml4763 figure 5. typical reverse characteristics 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.01 0.1 1 10 instantaneous forward voltage (v) instantaneous forward current (a) pulse width = 300s 1% duty cycle t j =25c 17924 0 20 40 60 80 100 0.01 0.1 1 10 percent of rated zener voltage (%) instantaneous reverse current ( a) t j =25c t j = 100c 17926
www.vishay.com 4 document number 85782 rev. 2, 25-mar-03 vishay sml4728 to sml4764a vishay semiconductors package dimensions in mm mounting pad layout 14275 0.094 max. (2.38 max.) 0.220 (5.58) ref 0.066 min. (1.68 min.) 0.052 min. (1.32 min.) 17922
vishay sml4728 to sml4764a document number 85782 rev. 2, 25-mar-03 vishay semiconductors www.vishay.com 5 ozone depleting substances policy statement it is the policy of vishay semiconductor gmbh to 1. meet all present and future national and international statutory requirements. 2. regularly and continuously improve the performance of our products, processes, distribution and operatingsystems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. it is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (odss). the montreal protocol (1987) and its london amendments (1990) intend to severely restrict the use of odss and forbid their use within the next ten years. various national and international initiatives are pressing for an earlier ban on these substances. vishay semiconductor gmbh has been able to use its policy of continuous improvements to eliminate the use of odss listed in the following documents. 1. annex a, b and list of transitional substances of the montreal protocol and the london amendments respectively 2. class i and ii ozone depleting substances in the clean air act amendments of 1990 by the environmental protection agency (epa) in the usa 3. council decision 88/540/eec and 91/690/eec annex a, b and c (transitional substances) respectively. vishay semiconductor gmbh can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. we reserve the right to make changes to improve technical design and may do so without further notice. parameters can vary in different applications. all operating parameters must be validated for each customer application by the customer. should the buyer use vishay semiconductors products for any unintended or unauthorized application, the buyer shall indemnify vishay semiconductors against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. vishay semiconductor gmbh, p.o.b. 3535, d-74025 heilbronn, germany telephone: 49 (0)7131 67 2831, fax number: 49 (0)7131 67 2423
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