? semiconductor components industries, llc, 2002 june, 2002 rev. 3 1 publication order number: 3ez4.3d5/d 3ez4.3d5 series 3 watt do-41 surmetic 30 zener voltage regulators this is a complete series of 3 watt zener diodes with limits and excellent operating characteristics that reflect the superior capabilities of siliconoxide passivated junctions. all this in an axiallead, transfermolded plastic package that offers protection in all common environmental conditions. specification features: ? zener voltage range 4.3 v to 330 v ? esd rating of class 3 (>16 kv) per human body model ? surge rating of 98 w @ 1 ms ? maximum limits guaranteed on up to six electrical parameters ? package no larger than the conventional 1 watt package mechanical characteristics: case: void free, transfermolded, thermosetting plastic finish: all external surfaces are corrosion resistant and leads are readily solderable maximum lead temperature for soldering purposes: 230 c, 1/16 from the case for 10 seconds polarity: cathode indicated by polarity band mounting position: any maximum ratings rating symbol value unit max. steady state power dissipation @ t l = 75 c, lead length = 3/8 derate above 75 c p d 3 24 w mw/ c steady state power dissipation @ t a = 50 c derate above 50 c p d 1 6.67 w mw/ c operating and storage temperature range t j , t stg 65 to +200 c device package shipping ordering information 3ezxxxd5 axial lead 2000 units/box 3ezxxxd5rl* axial lead axial lead case 59 plastic 6000/tape & reel cathode anode 2polarity band up with cathode lead off first polarity band down with cathode lead off first l 3ezx xxd5 yyww l = assembly location 3ezxxxd5 = device code = (see table next page) yy = year ww = work week marking diagram 3ezxxxd5rr1 axial lead 2000/tape & reel 3ezxxxd5rr2 axial lead 2000/tape & reel http://onsemi.com *3ez8.2d5 and 3ez220d5 not available in 6000/tape & reel
zener voltage regulator i f v i i r i zt v r v z v f 3ez4.3d5 series http://onsemi.com 2 electrical characteristics (t a = 25 c unless otherwise noted, v f = 1.5 v max @ i f = 200 ma for all types) symbol parameter v z reverse zener voltage @ i zt i zt reverse current z zt maximum zener impedance @ i zt i zk reverse current z zk maximum zener impedance @ i zk i r reverse leakage current @ v r v r breakdown voltage i f forward current v f forward voltage @ i f i zm maximum dc zener current i r surge current @ t a = 25 c
3ez4.3d5 series http://onsemi.com 3 electrical characteristics (t a = 25 c unless otherwise noted, v f = 1.5 v max @ i f = 200 ma for all types) zener voltage (note 2) zener impedance (note 3) leakage current i r device device v z (volts) @ i zt z zt @ i zt z zk @ i zk i r @ v r i zm i r (note 4) d ev i ce (note 1) d ev i ce marking min nom max ma ma a max volts ma ma 3ez4.3d5 3ez4.3d5 4.09 4.3 4.52 174 4.5 400 1 30 1 590 4.1 3ez6.2d5 3ez6.2d5 5.89 6.2 6.51 121 1.5 700 1 5 3 435 3.1 3ez8.2d5* 3ez8.2d5* 7.79 8.2 8.61 91 2.3 700 0.5 5 6 330 2.44 3ez10d5 3ez10d5 9.50 10 10.5 75 3.5 700 0.25 3 7.6 270 2.0 3ez13d5 3ez13d5 12.35 13 13.65 58 4.5 700 0.25 0.5 9.9 208 1.54 3ez15d5 3ez15d5 14.25 15 15.75 50 5.5 700 0.25 0.5 11.4 180 1.33 3ez16d5 3ez16d5 15.2 16 16.8 47 5.5 700 0.25 0.5 12.2 169 1.25 3ez18d5 3ez18d5 17.1 18 18.9 42 6.0 750 0.25 0.5 13.7 150 1.11 3ez24d5 3ez24d5 22.8 24 25.2 31 9.0 750 0.25 0.5 18.2 112 0.83 3ez36d5 3ez36d5 34.2 36 37.8 21 22 1000 0.25 0.5 27.4 75 0.56 3ez39d5 3ez39d5 37.05 39 40.95 19 28 1000 0.25 0.5 29.7 69 0.51 3ez220d5* 3ez220d5* 209 220 231 3.4 1600 9000 0.25 1 167 12 0.09 3ez240d5 3ez240d5 228 240 252 3.1 1700 9000 0.25 1 182 11 0.09 3ez330d5 3ez330d5 313.5 330 346.5 2.3 2200 9000 0.25 1 251 8 0.06 1. tolerance and type number designation tolerance designation device tolerance of 5% are indicated by a a5o suffix. 2. zener voltage (v z ) measurement on semiconductor guarantees the zener voltage when measured at 40 ms 10 ms, 3/8 from the diode body. and an ambient temperature of 25 c (+8 c, 2 c) 3. zener impedance (z z ) derivation the zener impedance is derived from 60 seconds ac voltage, which results when an ac current having an rms value equal to 10% of the dc zener current (i zt or i zk ) is superimposed on i zt or i zk . 4. surge current (i r ) nonrepetitive the rating listed in the electrical characteristics table is maximum peak, nonrepetitive, reverse surge current of 1/2 square wave or equivalent sine wave pulse of 1/120 second duration superimposed on the test current, i zt , per jedec standards. however, actual device capability is as described in figure 3 of the general data sheet for surmetic 30s. *not available in the 6000/tape & reel. figure 1. power temperature derating curve t l , lead temperature ( c) 0 20 40 60 200 80 100 120 140 160 180 0 1 2 3 4 5 l = 1/8 l = 3/8 l = 1 l = lead length to heat sink p d , steady state power dissipation (watts)
3ez4.3d5 series http://onsemi.com 4 t, time (seconds) 0.0001 0.0002 0.0005 0.001 0.002 0.005 0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 10 0.3 0.5 0.7 1 2 3 5 7 10 20 30 d =0.5 0.2 0.1 0.05 0.01 d = 0 duty cycle, d =t 1 /t 2 q jl (t, d) transient thermal resistance junctiontolead ( c/w) p pk t 1 note: below 0.1 second, thermal response curve is applicable to any lead length (l). single pulse t jl = jl (t)p pk repetitive pulses t jl = jl (t,d)p pk t 2 0.02 10 20 30 50 100 200 300 500 1k 0.1 0.2 0.3 0.5 1 2 3 5 10 20 30 50 100 pw, pulse width (ms) p , peak surge power (watts) pk 1 2 5 10 20 50 100 200 400 1000 0.0003 0.0005 0.001 0.002 0.005 0.01 0.02 0.05 0.1 0.2 0.5 1 2 3 t a = 125 c t a = 125 c nominal v z (volts) as specified in elec. char. table figure 2. typical thermal response l, lead length = 3/8 inch figure 3. maximum surge power figure 4. typical reverse leakage i r , reverse leakage ( m adc) @ v r rectangular nonrepetitive waveform t j =25 c prior to initial pulse
3ez4.3d5 series http://onsemi.com 5 application note since the actual voltage available from a given zener diode is temperature dependent, it is necessary to determine junction temperature under any set of operating conditions in order to calculate its value. the following procedure is recommended: lead temperature, t l , should be determined from: t l = la p d + t a la is the lead-to-ambient thermal resistance ( c/w) and p d is the power dissipation. the value for la will vary and depends on the device mounting method. la is generally 3040 c/w for the various clips and tie points in common use and for printed circuit board wiring. the temperature of the lead can also be measured using a thermocouple placed on the lead as close as possible to the tie point. the thermal mass connected to the tie point is normally large enough so that it will not significantly respond to heat surges generated in the diode as a result of pulsed operation once steady-state conditions are achieved. using the measured value of t l , the junction temperature may be determined by: t j = t l + t jl t jl is the increase in junction temperature above the lead temperature and may be found from figure 2 for a train of power pulses (l = 3/8 inch) or from figure 10 for dc power. t jl = jl p d for worst-case design, using expected limits of i z , limits of p d and the extremes of t j ( t j ) may be estimated. changes in voltage, v z , can then be found from: v = vz t j vz , the zener voltage temperature coefficient, is found from figures 5 and 6. under high power-pulse operation, the zener voltage will vary with time and may also be affected significantly by the zener resistance. for best regulation, keep current excursions as low as possible. data of figure 2 should not be used to compute surge capability. surge limitations are given in figure 3. they are lower than would be expected by considering only junction temperature, as current crowding effects cause temperatures to be extremely high in small spots resulting in device degradation should the limits of figure 3 be exceeded.
3ez4.3d5 series http://onsemi.com 6 figure 5. units to 12 volts figure 6. units 10 to 400 volts figure 7. v z = 3.3 thru 10 volts figure 8. v z = 12 thru 82 volts figure 9. v z = 100 thru 400 volts figure 10. typical thermal resistance zener voltage versus zener current (figures 7, 8 and 9) temperature coefficient ranges (90% of the units are in the ranges indicated) v z , zener voltage @ i zt (volts) 34 5 6 789101112 10 8 6 4 2 0 -2 -4 range , temperature coefficient (mv/ c) @ i zt vz q 1000 500 200 100 50 20 10 10 20 50 100 200 400 1000 v z , zener voltage @ i zt (volts) , temperature coefficient (mv/ c) @ i zt vz q 01 234 56 7 8910 100 50 30 20 10 1 0.5 0.3 0.2 0.1 v z , zener voltage (volts) i , zener current (ma) z 2 5 3 0102030405060708090100 v z , zener voltage (volts) i , zener current (ma) z 100 50 30 20 10 1 0.5 0.3 0.2 0.1 2 5 3 100 200 300 400 250 350 150 10 1 0.5 0.2 0.1 v z , zener voltage (volts) 2 5 i , zener current (ma) z 0 10 20 30 40 50 60 70 80 l, lead length to heat sink (inch) primary path of conduction is through the cathode lead 0 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1 t l jl , junctiontolead thermal resistance q l l ( c/w)
3ez4.3d5 series http://onsemi.com 7 outline dimensions 3 watt do41 surmetic 30 zener voltage regulators axial leaded plastic do41 case 5910 issue s b d k k f f a dim min max min max millimeters inches a 4.10 5.20 0.161 0.205 b 2.00 2.70 0.079 0.106 d 0.71 0.86 0.028 0.034 f --- 1.27 --- 0.050 k 25.40 --- 1.000 --- notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. 3. 59-04 obsolete, new standard 59-09. 4. 59-03 obsolete, new standard 59-10. 5. all rules and notes associated with jedec do-41 outline shall apply 6. polarity denoted by cathode band. 7. lead diameter not controlled within f dimension.
3ez4.3d5 series http://onsemi.com 8 on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and s pecifically disclaims any and all liability, including without limitation special, consequential or incidental damages. atypicalo parameters which may be provided in scillc data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including atypicalso must be validated for each customer application by customer's technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body , or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indem nify and hold scillc and its of ficers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and re asonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized u se, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employ er. publication ordering information japan : on semiconductor, japan customer focus center 4321 nishigotanda, shinagawaku, tokyo, japan 1410031 phone : 81357402700 email : r14525@onsemi.com on semiconductor website : http://onsemi.com for additional information, please contact your local sales representative. 3ez4.3d5/d surmetic is a trademark of semiconductor components industries, llc. literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 3036752175 or 8003443860 toll free usa/canada fax : 3036752176 or 8003443867 toll free usa/canada email : onlit@hibbertco.com n. american technical support : 8002829855 toll free usa/canada
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