technical data sheet 6 lake street, lawrence, ma 01841 gort road business park, ennis, co. clare, ireland 1-800-446-1158 / (978) 620-2600 / fax: (978) 689-0803 tel: +353 (0) 65 6840044 fax: +353 (0) 65 6822298 website: http://www.microsemi.com voidless-hermetically-sealed 1.5 watt glass zener diode qualified per mil-prf-19500/406 t4-lds-0183 rev. 1 (101686) page 1 of 5 devices levels 1n4460 thru 1n4496 & c / d / us jan 1n6485 thru 1n6491 & c / d / us jantx jantxv jans description do-41 this zener voltage regulator series is milita ry qualified to mil-prf-19500/406 and is ideal for high-reliability applications where a fa ilure cannot be tolerated. these industry- recognized 1.5 watt zener voltage regulators are hermetically sealed with voidless-glass construction using an internal metallurgical bond. it includes zener selections from 3.3 to 200 volts in standard 5% tolerances as well as ti ghter tolerances identified by different suffix letters on the part number. they are also av ailable in surface-mount packages (see separate data sheet for 1n4460us thru 1n4496us and 1n 6485us thru 1n6491us). microsemi also offers numerous other zener products to meet higher and lower power ratings in both thru- hole and surface mount packages. important: for the most current data, consult microsemi?s website: http://www.microsemi.com features ? popular jedec registered series ? voidless hermetically sealed glass package ? extremely robust construction ? triple-layer passivation ? internal ? category i? metallurgical bonds for 1n4462 thru 1n4496 and ? category iii? for 1n6485 thru 1n6491 as well as 1n4460 and 1n4461. ? jan, jantx, jantxv, and jans available per mil-prf-19500/406 ? surface mount equivalents also available in a square end-cap melf configuration with a ?us? suffix (see separate data sheet for 1n4460us thru 1n44 96us and 1n6485us thru 1n6491us)
technical data sheet 6 lake street, lawrence, ma 01841 gort road business park, ennis, co. clare, ireland 1-800-446-1158 / (978) 620-2600 / fax: (978) 689-0803 tel: +353 (0) 65 6840044 fax: +353 (0) 65 6822298 website: http://www.microsemi.com t4-lds-0183 rev. 1 (101686) page 2 of 5 applications / benefits ? regulates voltage over a broad operatin g current and temperature range ? extensive selection from 3.3 to 200v ? standard voltage tolerances are plus/minus 5% with no suffix ? tight tolerances available in plus or minus 2% or 1% with c or d suffix respectively ? flexible axial-lead mounting terminals ? nonsensitive to esd per mil-std-750 method 1020 ? inherently radiation hard as d escribed in microsemi micronote 050 maximum ratings ? operating temperature: -65 o c to +175 o c. ? storage temperature: -65 o c to +200 o c. ? power dissipation: 1.5 watts @ t a = 25 o c ? thermal resistance: 42 o c/w junction to lead at 3/8 inch (10 mm) from body ? thermal impedance: 4.5 o c/w (1n4462 thru 1n4496) and 7.5 o c/w (1n6485 thru 1n6491 as well as 1n4460 and 1n4461) at 10 ms ? forward voltage: 1.00 v at 200 ma and 1.5 v at 1.0 a mechanical and packaging ? case: hermetically sealed voidless hard glass with tungsten slugs ? terminations: axial-leads are ti n/lead (sn/pb) over copper ? marking: body painted and part number, etc. ? polarity: cathode indicated by band ? tape & reel option: standard per eia-296 ? weight: 340 mg
technical data sheet 6 lake street, lawrence, ma 01841 gort road business park, ennis, co. clare, ireland 1-800-446-1158 / (978) 620-2600 / fax: (978) 689-0803 tel: +353 (0) 65 6840044 fax: +353 (0) 65 6822298 website: http://www.microsemi.com t4-lds-0183 rev. 1 (101686) page 3 of 5 electrical characteristics @ 25c 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 surge current @ 8.3 ms sq. wave i zsm volts ma ohms ohms ma a volts ma amps 1n6485 1n6486 1n6487 1n6488 1n6489 1n6490 1n6491 3.3 3.6 3.9 4.3 4.7 5.1 5.6 76.0 69.0 64.0 58.0 53.0 49.0 45.0 10 10 9 9 8 7 5 400 400 400 400 500 500 600 1.0 1.0 1.0 1.0 1.0 1.0 1.0 50 50 35 5.0 4.0 1.0 0.5 1.0 1.0 1.0 1.0 1.0 1.0 2.0 433 397 366 332 304 280 255 4.2 3.9 3.6 3.3 3.0 2.7 2.5 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 10.40 12.00 12.80 14.40 110 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 18 650 650 700 700 .25 .25 .25 .25 .05 .05 .05 .05 16.00 17.60 19.20 21.60 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 24.00 26.40 28.80 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 60.4 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 2.0 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 1500 8000 .25 .25 160.0 7.2 .072
technical data sheet 6 lake street, lawrence, ma 01841 gort road business park, ennis, co. clare, ireland 1-800-446-1158 / (978) 620-2600 / fax: (978) 689-0803 tel: +353 (0) 65 6840044 fax: +353 (0) 65 6822298 website: http://www.microsemi.com t4-lds-0183 rev. 1 (101686) page 4 of 5 symbols & definitions symbol definition v z zener voltage: the zener voltage the devi ce 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 (leak age) 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 current: the nonrepetitive p eak value of zener surge current at a specified wave form. graphs figure 1 typical temperature coefficient characteristics figure 2 power temperature derating curve
technical data sheet 6 lake street, lawrence, ma 01841 gort road business park, ennis, co. clare, ireland 1-800-446-1158 / (978) 620-2600 / fax: (978) 689-0803 tel: +353 (0) 65 6840044 fax: +353 (0) 65 6822298 website: http://www.microsemi.com t4-lds-0183 rev. 1 (101686) page 5 of 5 package dimensions note: dimensions 1. dimensions are in inches. ltr inches millimeters notes 2. millimeters are given for general info rmation only. min max min max 3. package contour optional with bd and length bl. heat bl .106 .160 2.69 4.06 3 slugs, if any, shall be included within this cylinder length but bd .060 .085 1.52 2.16 3 shall not be subject to minimum limit of bd. ll .800 1.300 20.32 33.02 4. the specified lead diameters apply in the zone between .050 ld .028 .032 0.71 0.81 inch (1.27 mm) from the diode body and the end of the lead. lu .050 1.27 4 5. in accordance with asme y14.5m, diameters are equivalent to x symbology. figure 1. physical dimensions of nons urface mount device (similar to do-41) note: ltr dimensions 1. dimensions are in inches. inches millimeters 2. millimeters are given for general in formation only. min max min max 3. in accordance with asme y14.5m, diameters ar e equivalent bl .168 .200 4.28 5.08 to x symbology. ect .019 .028 0.48 0.71 4. dimensions are pre-solder dip. s .003 0.08 bd .091 .103 2.31 2.62 figure 2. physical dimensions of surface mount device, us(d5a) .
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