t4 - lds -0 183, rev . 3 (1 2 0901 ) ?201 2 microsemi corporation page 1 of 6 1n4460 ? 1n4496 and 1n6485 ? 1n6491 available on commercial versions voidless hermetically sealed 1.5 watt glass zener diodes qualified per mil - prf - 19500/4 06 qualified levels : jan, jantx, jantxv and jans descripti on t his zener v oltage r egulator series is military qualified to mil - prf - 19500/406 and is ideal for high - reliability applications where a failure cannot be tolerated. these industry - recognized 1.5 w att zener v oltage r egulators are hermetically sealed wit h void - less glass construction using an internal metallurgical bond. it includes zener selections from 3.3 to 200 volts in standard 5% tolerance . 1% and 2% tolerance versions are also available . microsemi also offers numerous other zener products to meet higher and lower power ratings in both thru - hole and surface mount packages. do - 41 package also available in : d - 5a melf package (surface mount) 1n 4460us ? 1n4496us and 1n64 85us ? 1n6491us important: for the latest information, visit our website http://www.microsemi.com . features ? popular jedec registered series . ? v oid- less hermetically sealed glass package . ? triple - layer passiva tion. ? extremely robust construction. ? internal ?category 1? metallurgical bond s for 1n4462 thru 1n4496 and ? category iii? for 1n6485 thru 1n6491 as well as 1n4460 and 1n4461 . ? jan, jantx, jantxv and jans qualifi cations are avail a ble per mil - prf - 19500/ 4 06 . ? ro hs compliant versions available (commercial grade only) . applications / benefits ? regulates voltage over a broad operating current and temperature range . ? extensive selection from 3.3 to 200 v. ? standard voltage tolerances are plus/minus 5% with no suff ix . ? tight er tolerances available in plus or minus 2% or 1% . ? flexible axial - lead mounting terminals . ? non - sensitive to esd per mil- std -750 m ethod 1020 . ? inherently radiation hard as described in microsemi micronote 050 . maximum ratings @ t a = 25 o c unless otherwise specified msc ? law rence 6 lake street, lawrence, ma 01841 tel: 1 -800- 446- 1158 or (978) 620 - 2600 fax: (978) 689- 0803 msc ? ireland gort road business park, ennis, co. clare, ireland tel: +353 (0) 65 6840044 fax: +353 (0) 65 6822298 website: www.microsemi.com parameters/test conditions symbol value unit junction and storage temperature t j & t stg - 65 to +175 o c steady state power dissipation @ t l = +112 oc l = .375 inch (9.53 mm) p d 1.5 w thermal r esistance junction -to -lead @ .375 inch ( 9.52 mm) from body r ? jl 42 o c /w thermal impedance @ 10 ms 1n4462 ? 1n4496 1n6485 ? 1n6491 1n4460 ? 1n4461 z ? jx figure 3 figure 4 figure 4 oc /w forward voltage @ 200 ma @ 1.0 a v f 1.0 1.5 v solder temperature @ 10 s t sp 260 o c
t4 - lds -0 183, rev . 3 (1 2 0901 ) ?201 2 microsemi corporation page 2 of 6 1n4460 ? 1n4496 and 1n6485 ? 1n6491 mechanical and packaging ? case: hermetically sealed voidless hard glass with t ungsten slugs. ? terminal s: tin/ l ead (sn/pb) or rohs compliant matte/ t in (commercial grade only) over c opper. ? marking: body co ated in blue with part number . ? polarity: cathode indicated by band. ? tape & reel option: standard per eia - 296. consult factory for quantities. ? weight: 340 milligrams. ? see p ackage d imensions on last page. part nomen clature jan 1n 4460 c (e3) reliability level jan = jan level jantx = jantx level jantxv = jantxv level jans = jans level blank = commercial jedec type number (see electrical characteristics table) r ohs compliance e3 = rohs c ompliant ( available on commercial grade only ) blank = non - rohs c ompliant tolerance level blank = 5 % c = 2 % d = 1% symbols & definitions symbol definition v z zener voltage: the z ener voltage the device will exhibit at a specified current (i z ) in its breakdown region. i z , i zt , i zk regulator current: the dc regulator current (i z ), at a specified test point (i zt ), near breakdown knee (i zk ). z zt or z zk dynamic impedance: the small signal impedance of the diode when biased to operate in its breakdown region at a specified rms current modulation (typically 10% of i zt or i zk ) and superimposed on i zt or i zk respectively. v f maximum forward voltage: the maximum forward voltage the device will exhibit at a specified current. i r maximum reverse current: the maximum reverse (leakage) current that will flow at the specified voltage and temperature. i zm maximum regulator (zener) current: the maximum rated dc current for the specified power rating. i zsm maximum zener surge curr ent: the non - repetitive peak value of z ener surge current at a specified wave form.
t4 - lds -0 183, rev . 3 (1 2 0901 ) ?201 2 microsemi corporation page 3 of 6 1n4460 ? 1n4496 and 1n6485 ? 1n6491 electrical characteristics @ 25 oc case temperature type nominal zener voltage v z test current i zt maximum dynamic impedance z zt @ i zt maximum knee impedance z zk @ i zk maximum reverse current i r @ v r maximum continuous current i zm (note 1) surge current @ 8.3 ms sq u are wave i zsm v olts ma o hms o hms ma a v olts ma a mps 1n4460 1n4461 1n4462 1n4463 6.2 6.8 7.5 8.2 40.0 37.0 34.0 31.0 4 2.5 2.5 3 200 200 400 400 1.0 1.0 .5 .5 10.0 5.0 1.0 .50 3.72 4.08 4.50 4.92 230 210 191 174 2.3 2.1 1.9 1.7 1n4464 1n4465 1n4466 1n4467 9.1 10.0 11.0 12.0 28.0 25.0 23.0 21.0 4 5 6 7 500 500 550 550 .5 .25 .25 .25 .30 .30 .30 .20 5.46 8.00 8.80 9.60 157 143 130 119 1.6 1.4 1.3 1.2 1n4468 1n4469 1n4470 1n4471 13.0 15.0 16.0 18.0 19.0 17.0 15.5 14.0 8 9 10 11 550 600 600 650 .25 .25 .25 .25 .05 .05 .05 .05 10.4 12.0 12.8 14.4 110 95 90 79 1.1 .95 .90 .79 1n4472 1n4473 1n4474 1n4475 20.0 22.0 24.0 27.0 12.5 11.5 10.5 9.5 12 14 16 18 6 50 650 700 700 .25 .25 .25 .25 .05 .05 .05 .05 16.0 17.6 19.2 21.6 71 65 60 53 .71 .65 .60 .53 1n4476 1n4477 1n4478 1n4479 30.0 33.0 36.0 39.0 8.5 7.5 7.0 6.5 20 25 27 30 750 800 850 900 .25 .25 .25 .25 .05 .05 .05 .05 24.0 26.4 28.8 31.2 48 43 40 37 .48 .43 .40 .37 1n4480 1n4481 1n4482 1n4483 43.0 47.0 51.0 56.0 6.0 5.5 5.0 4.5 40 50 60 70 950 1000 1100 1300 .25 .25 .25 .25 .05 .05 .05 .25 34.4 37.6 40.8 44.8 33 30 28 26 .33 .30 .28 .26 1n4484 1n4485 1n4486 1n4487 62.0 68.0 75.0 82.0 4.0 3.7 3.3 3.0 80 100 130 160 1500 1700 2000 2500 .25 .25 .25 .25 .25 .25 .25 .25 49.6 54.4 60. 0 65.6 23 21 19 17 .23 .21 .19 .17 1n4488 1n4489 1n4490 1n4491 91.0 100.0 110.0 120.0 2.8 2.5 2. 3 2.0 200 250 300 400 3000 3100 4000 4500 .25 .25 .25 .25 .25 .25 .25 .25 72.8 80. 0 88.0 96.0 16 14 13 12 .16 .14 .13 .12 1n4492 1n4493 1n4494 1n4495 130.0 150.0 160.0 180.0 1.9 1.7 1.6 1.4 500 700 1000 1300 5000 6000 6500 7000 .25 .25 .25 .25 .25 .25 .25 .25 104.0 120.0 128.0 144.0 11 9.5 8.9 7.9 .11 .095 .089 .079 1n4496 200.0 1.2 1 500 8000 .25 .25 160.0 7.2 .072 1n6485 1n6486 1n6487 1n6488 3.3 3.6 3.9 4.3 76.0 69.0 64.0 58.0 10 10 9 9 400 400 400 400 1.0 1.0 1.0 1.0 50 50 35 5.0 1.0 1.0 1.0 1.0 433 397 366 332 4.2 3.9 3.6 3.3 1n6489 1n6490 1n6491 4.7 5.1 5.6 53.0 49.0 45.0 8 7 5 5 00 500 600 1.0 1.0 1.0 4.0 1.0 0.5 1.0 1.0 2.0 304 280 255 3.0 2.7 2.5 note : 1. see ? maximum ratings ? for p d temperature conditions for leaded package where i zm is applicable .
t4 - lds -0 183, rev . 3 (1 2 0901 ) ?201 2 microsemi corporation page 4 of 6 1n4460 ? 1n4496 and 1n6485 ? 1n6491 graphs temperature coeffic ient (%/c) figure 1 temperature coefficient characteristics t l (c) (leads) figure 2 t emperature - p ower derating curve zener voltage dc operation maximum rating (w)
t4 - lds -0 183, rev . 3 (1 2 0901 ) ?201 2 microsemi corporation page 5 of 6 1n4460 ? 1n4496 and 1n6485 ? 1n6491 graphs (continued) t h (heating time) ms figure 3 thermal impedance curve for 1n4462 through 1n4496 t h (heating time) ms figure 4 thermal impedance curv e for 1n6485 through 1n6491 and 1n4460 through 1n4461 z jx - (c/w) z jx - (c/w)
t4 - lds -0 183, rev . 3 (1 2 0901 ) ?201 2 microsemi corporation page 6 of 6 1n4460 ? 1n4496 and 1n6485 ? 1n6491 package dimensions notes: 1. dimensions are in inches. 2. millimeters are given for general information only. 3. package contour optional with bd and length bl. heat slugs, if any, shall be included wi thin this cylinder length but shall not be subject to minimum limit of bd . 4. the specified lead diameters apply in the zone between .050 inch (1.27 mm) from the diode body and the end of the lead . 5. in accordance with asme y14.5m, diameters are equivalent to x symbology. dimensions ltr inch millimeters notes min max min max bd .060 .085 1.52 2.16 3 bl .106 .160 2.69 4.06 3 ld .028 .032 0.71 0.81 ll .800 1.300 20.32 33.02 lu .050 1.27 4
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