voidless-hermetically-sealed surface mount 5 watt glass zener microsemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941-6300, fax: (480) 947-1503 page 1 copyright ? 2007 4-27-2007 rev c www. microsemi . com scottsdale division 1n4954us thru 1n4996us, 1n5968us thru 1n5969us, and 1n6632us thru 1n6637us 1n4954us thru 1n4996us 1n5968us thru 1n5969us 1n6632us thru 1n6637us description appearance t his surface mount zener voltage regulator series is military qualified to mil-prf-19500/356 and is ideal for high-reliability applications where a failure cannot be tolerated. thes e industry-recognized 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 390 volts in standard 5% tolerances as well as tighter tolerances identified by different suffix letters on the part number. they are also available in axial-leaded packages for thru hole mounting by deleting the ?us? suffix (see separate data sheet for 1n4954 thru 1n4996, 1n5968 thru 1n5969, and 1n6632 thru 1n6637). 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 applications / benefits ? popular jedec registered series ? voidless hermetically sealed glass package ? triple-layer passivation ? internal ? category i? metallurgical bonds for 1n4954us thru 1n4996us, and ? category iii? for 1n6632us thru 1n6637us as well as 1n5968us thru 1n5959us ? jan, jantx, jantxv, and jans available per mil- prf-19500/356 ? axial-leaded equivalents (see separate data sheet for 1n4954 thru 1n4996, 1n6632 thru 1n6637 and 1n5968 thru 1n5969) ? regulates voltage over a broad operating current and temperature range ? extensive selection from 3.3 to 390 v ? 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 ? extremely robust construction ? nonsensitive to esd per mil-std-750 method 1020 ? inherently radiation hard as described in microsemi micronote 050 maximum ratings mechanical and packaging ? operating temperature: -65 o c to +175 o c. ? storage temperature: -65 o c to +175 o c. ? power dissipation: 5 watts @ t ec = 125 o c and derate linearly at 0.1 w/ o c above t ec = 125 o c to zero at 175 o c ? thermal resistance: 7 o c/w junction to end cap for 1n4954us thru 1n4996us and 10 o c/w for 1n6632us thru 1n6637us as well as 1n5968us thru 1n5969us ? thermal impedance at 10 ms: 1.8 o c/w for 1n4954us thru 1n4996us, and 3.0 o c/w for both the 1n6632us thru 1n6637us & 1n5968us thru 1n5969us ? forward voltage: 1.50 v at 1.0 a ? case: hermetically sealed voidless hard glass with tungsten slugs ? terminations: end caps are copper with tin/lead (sn/pb) finish. note: pr evious inventory had solid silver end caps with tin/lead (sn/pb) finish. ? marking: none ? polarity: cathode indicated by band ? tape & reel option: standard per eia-481-b ? weight: 539 mg ?e? package (or ?d-5b?)
voidless-hermetically-sealed surface mount 5 watt glass zener microsemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941-6300, fax: (480) 947-1503 page 2 copyright ? 2007 4-27-2007 rev c www. microsemi . com scottsdale division 1n4954us thru 1n4996us, 1n5968us thru 1n5969us, and 1n6632us thru 1n6637us 1n4954us thru 1n4996us 1n5968us thru 1n5969us 1n6632us thru 1n6637us electrical characteristics @ 25 o c maximum dynamic impedance maximum reverse leakage current voltage nominal zener voltage v z @ i zt test current i zt z z @ i zt z zk * @ i zk =1ma voltage regulation (note 1) v z i r v r maximum temperature coeff. vz @ i zt maximum continuous current i zm surge current i zsm type* volts ma ohms ohms volts a volts %/ o c ma amps 1n6632us 1n6633us 1n6634us 1n6635us 1n6636us 1n6637us 3.3 3.6 3.9 4.3 4.7 5.1 380 350 320 290 260 240 3.0 2.5 2.0 2.0 2.0 1.5 500 500 500 500 450 400 0.90 0.80 0.75 0.70 0.60 0.50 300 250 175 25 20 5 1.0 1.0 1.0 1.0 1.0 1.0 -.075 -.070 -.060 -.050 +/-.025 +/-.030 1440 1320 1220 1100 1010 930 20.0 18.7 17.6 16.4 15.3 14.4 1n5968us 1n5969us 1n4954us 1n4955us 1n4956us 5.6 6.2 6.8 7.5 8.2 220 220 175 175 150 1.0 1.0 1.0 1.5 1.5 400 1000 1000 800 600 0.4 0.5 0.7 0.7 0.7 5000 1000 150 100 50 4.28 4.74 5.2 5.7 6.2 .04 .04 .05 .06 .06 865 765 700 630 580 20 20 29.3 26.4 24 1n4957us 1n4958us 1n4959us 1n4960us 1n4961us 9.1 10.0 11 12 13 150 125 125 100 100 2.0 2.0 2.5 2.5 3.0 400 125 130 140 145 0.7 0.8 0.8 0.8 0.9 25 25 10 10 10 6.9 7.6 8.4 9.1 9.9 .06 .07 .07 .07 .08 520 475 430 395 365 22 20 19 18 16 1n4962us 1n4963us 1n4964us 1n4965us 1n4966us 15 16 18 20 22 75 75 65 65 50 3.5 3.5 4.0 4.5 5.0 150 155 160 165 170 1.0 1.1 1.2 1.5 1.8 5 5 5 2 2 11.4 12.2 13.7 15.2 16.7 .08 .08 .085 .085 .085 315 294 264 237 216 12 10 9.0 8.0 7.0 1n4967us 1n4968us 1n4969us 1n4970us 1n4971us 24 27 30 33 36 50 50 40 40 30 5.0 6.0 8 10 11 175 180 190 200 220 2.0 2.0 2.5 2.8 3.0 2 2 2 2 2 18.2 20.6 22.8 25.1 27.4 .090 .090 .090 .095 .095 198 176 158 144 132 6.5 6.0 5.5 5.0 4.5 1n4972us 1n4973us 1n4974us 1n4975us 1n4976us 39 43 47 51 56 30 30 25 25 20 14 20 25 27 35 230 240 250 270 320 3.0 3.3 3.5 4.0 4.4 2 2 2 2 2 29.7 32.7 35.8 38.8 42.6 .095 .095 .095 .095 .095 122 110 100 92 84 4.0 3.5 3.2 3.0 2.8 1n4977us 1n4978us 1n4979us 1n4980us 1n4981us 62 68 75 82 91 20 20 20 15 15 42 50 55 80 90 400 500 620 720 760 5.0 5.5 6.0 6.6 7.5 2 2 2 2 2 47.1 51.7 56.0 62.2 69.2 .100 .100 .100 .100 .100 76 70 63.0 58.0 52.5 2.5 2.2 2.0 1.8 1.6 1n4982us 1n4983us 1n4984us 1n4985us 1n4986us 100 110 120 130 150 12 12 10 10 8 110 125 170 190 330 800 1000 1150 1250 1500 8.0 9.0 10 11 13 2 2 2 2 2 76.0 83.6 91.2 98.8 114.0 .100 .100 .100 .105 .105 47.5 43.0 39.5 36.6 31.6 1.4 1.2 1.00 0.80 0.75 1n4987us 1n4988us 1n4989us 1n4990us 1n4991us 160 180 200 220 240 8 5 5 5 5 350 450 500 550 650 1650 1750 1850 2000 2050 14 16 18 19 22 2 2 2 2 2 121.6 136.8 152 167 182 .105 .110 .110 .115 .115 29.4 26.4 23.6 21.6 19.8 0.70 0.60 0.50 0.50 0.40 1n4992us 1n4993us 1n4994us 1n4995us 1n4996us 270 300 330 360 390 5 4 4 3 3 800 950 1175 1400 1800 2100 2150 2200 2300 2500 25 28 32 35 40 2 2 2 2 2 206 228 251 274 297 .120 .120 .120 .120 .120 17.5 15.6 14.4 13.0 12.0 0.35 0.30 0.25 0.22 0.20 *i zk = 5 ma for 1n5968 note 1: maximum voltage change v z between 10% of i zm and 50% of i zm
voidless-hermetically-sealed surface mount 5 watt glass zener microsemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941-6300, fax: (480) 947-1503 page 3 copyright ? 2007 4-27-2007 rev c www. microsemi . com scottsdale division 1n4954us thru 1n4996us, 1n5968us thru 1n5969us, and 1n6632us thru 1n6637us 1n4954us thru 1n4996us 1n5968us thru 1n5969us 1n6632us thru 1n6637us 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 ), or near breakdown knee (i zk ). z zt or z zk dynamic impedance: the small signal impedance of t he diode when biased to operate in its breakdown region at a specified rms current m odulation (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 volt age 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 current: the nonrepetitive peak va lue of zener surge current at a specified wave form. graphs figure 1 surge power vs. surge duration figure 2 typical zener impedance vs. zener current
voidless-hermetically-sealed surface mount 5 watt glass zener microsemi scottsdale division 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941-6300, fax: (480) 947-1503 page 4 copyright ? 2007 4-27-2007 rev c www. microsemi . com scottsdale division 1n4954us thru 1n4996us, 1n5968us thru 1n5969us, and 1n6632us thru 1n6637us 1n4954us thru 1n4996us 1n5968us thru 1n5969us 1n6632us thru 1n6637us package dimensions and pad layout this package outline has also previously been identified as ?d-5b? note: if mounting requires adhesive separate from the solder, an additional 0.080 inch diameter contact may be placed in the center between the pads as an optional spot for cement as shown in the pad layout.
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