500 mw glass surface mount zener diodes www. microsemi . com scottsdale division 1n5221ur thru 1N5281BUR, e3 (or mll5221 thru mll5281b, e3) 1n5221ur thru 1N5281BUR descri pt i on appearan ce the 1n5221bur thru 1N5281BUR series of 0.5 watt zener voltage regulators provides a surface mount equivalent to the popular jedec registered 1n5221b to 1n5281b for 2.4 to 200 volts in standard 5% tolerances as well as tighter tolerances identified by different suffix letters on the part number. these are also available with an internal-metallurgical- bond option by adding a -1 suffix (see separate data sheet). microsemi also offers numerous other zener products to meet higher and lower power applications. do-213aa important: for the most current data, consult microsemis website: http://www.microsemi.com feat u res appli cat i on s / ben efi t s ? surface mount equivalents to the jedec registered 1n5221 thru 1n5281b series ? hermetically sealed surface mount package ? rohs compliant devices available by adding e3 suffix ? internal metallurgical bond option available by adding a -1 suffix (see separate data sheet for same part numbers with -1 suffix) ? do-7 or do-35 glass body axial-leaded zener equivalents also available per jedec registration (see separate data sheet for part numbers 1n5221 thru 1n5281b series ? regulates voltage over a broad operating current and temperature range ? selection from 2.4 to 200 v ? standard voltage tolerances are plus/minus 5% with b suffix identification and 10 % with a suffix ? tight tolerances available in plus or minus 2% or 1% with c or d suffix respectively ? nonsensitive to esd per mil-std-750 method 1020 ? minimal capacitance (see figure 3) ? inherently radiation hard as described in microsemi micronote 050 m ax i m u m rat i n gs m ech an i cal an d pack agi n g ? operating and storage temperature: -65 o c to +175 o c ? thermal resistance: 150 o c/w junction to end cap and 300 o c/w junction to ambient when mounted on fr4 pc board (1 oz cu) with recommended footprint (see last page) ? steady-state power: 0.5 watts at end cap temperature t ec < 100 o c or ambient temperature t a < 25 o c when mounted on fr4 pc board as described for thermal resistance above (see figure 2 for derating) ? forward voltage @200 ma: 1.1 volts (maximum) ? solder temperatures: 260 o c for 10 seconds (max) ? case: hermetically sealed glass do-213aa (sod80 or mll34) melf style package ? finish: end caps tin-lead or rohs compliant annealed matte-tin plating solderable per mil-std- 750, method 2026 ? polarity: cathode indicated by band where diode is to be operated with the banded end positive with respect to the opposite end for zener regulation ? marking: cathode band only ? tape & reel option: standard per eia-481-b with 12 mm tape, 2000 per 7 inch reel or 5000 per 13 inch reel (add tr suffix to part number) ? weight: 0.04 grams ? see package dimensions on last page microsemi scottsdale division page 1 copyright ? 2005 8-29-2005 rev b 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941-6300, fax: (480) 947-1503 downloaded from: http:///
500 mw glass surface mount zener diodes www. microsemi . com scottsdale division 1n5221ur thru 1N5281BUR, e3 (or mll5221 thru mll5281b, e3) 1n5221ur thru 1N5281BUR elect ri cal ch aract eri st i cs* max reverse leakage current nominal zener voltage v z @ i zt (note 2) test current i zt max zener impedance a and b suffix only a and b suffix only non-suffix max zener voltage temperature coeff. (a and b suffix only) (note 3) @ v r volts industry part number (notes 1 & 4) volts ma z zt @ i zt ohms z zk @ i zk = 0.25ma ohms i r a a b i r @ v r used for suffix a a vz (%/ o c) 1n5221ur 1n5222ur 1n5223ur 1n5224ur 1n5225ur 2.4 2.5 2.7 2.8 3.0 20 20 20 20 20 30 30 30 30 29 1200 1250 1300 1400 1600 100 100 75 75 50 0.95 0.95 0.95 0.95 0.95 1.0 1.0 1.0 1.0 1.0 200 200 150 150 100 -0.085 -0.085 -0.080 -0.080 -0.075 1n5226ur 1n5227ur 1n5228ur 1n5229ur 1n5230ur 3.3 3.6 3.9 4.3 4.7 20 20 20 20 20 28 24 23 22 19 1600 1700 1900 2000 1900 25 15 10 5.0 5.0 0.95 0.95 0.95 0.95 1.9 1.0 1.0 1.0 1.0 2.0 100 100 75 50 50 -0.070 -0.065 -0.060 +/-0.055 +/-0.030 1n5231ur 1n5232ur 1n5233ur 1n5234ur 1n5235ur 5.1 5.6 6.0 6.2 6.8 20 20 20 20 20 17 11 7.0 7.0 5.0 1600 1600 1600 1000 750 5.0 5.0 5.0 5.0 3.0 1.9 2.9 3.3 3.8 4.8 2.0 3.0 3.5 4.0 5.0 50 50 50 50 30 +/-0.030 +0.038 +0.038 +0.045 +0.050 1n5236ur 1n5237ur 1n5238ur 1n5239ur 1n5240ur 7.5 8.2 8.7 9.1 10 20 20 20 20 20 6.0 8.0 8.0 10 17 500 500 600 600 600 3.0 3.0 3.0 3.0 3.0 5.7 6.2 6.2 6.7 7.6 6.0 6.5 6.5 7.0 8.0 30 30 30 30 30 +0.058 +0.062 +0.065 +0.068 +0.075 1n5241ur 1n5242ur 1n5243ur 1n5244ur 1n5245ur 11 12 13 14 15 20 20 9.5 9.0 8.5 22 30 13 15 16 600 600 600 600 600 2.0 1.0 0.5 0.1 0.1 8.0 8.7 9.4 9.5 10.5 8.4 9.1 9.9 10 11 30 10 10 10 10 +0.076 +0.077 +0.079 +0.082 +0.082 1n5246ur 1n5247ur 1n5248ur 1n5249ur 1n5250ur 16 17 18 19 20 7.8 7.4 7.0 6.6 6.2 17 19 21 23 25 600 600 600 600 600 0.1 0.1 0.1 0.1 0.1 11.4 12.4 13.3 13.3 14.3 12 13 14 14 15 10 10 10 10 10 +0.083 +0.084 +0.085 +0.086 +0.086 1n5251ur 1n5252ur 1n5253ur 1n5254ur 1n5255ur 22 24 25 27 28 5.6 5.2 5.0 4.6 4.5 29 33 35 41 44 600 600 600 600 600 0.1 0.1 0.1 0.1 0.1 16.2 17.1 18.1 20 20 17 18 19 21 21 10 10 10 10 10 +0.087 +0.088 +0.089 +0.090 +0.091 1n5256ur 1n5257ur 1n5258ur 1n5259ur 1n5260ur 30 33 36 39 43 4.2 3.8 3.4 3.2 3.0 49 58 70 80 93 600 700 700 800 900 0.1 0.1 0.1 0.1 0.1 22 24 26 29 31 23 25 27 30 33 10 10 10 10 10 +0.091 +0.092 +0.093 +0.094 +0.095 1n5261ur 1n5262ur 1n5263ur 1n5264ur 1n5265ur 47 51 56 60 62 2.7 2.5 2.2 2.1 2.0 105 125 150 170 185 1000 1100 1300 1400 1400 0.1 0.1 0.1 0.1 0.1 34 37 41 44 45 36 39 43 46 47 10 10 10 10 10 +0.095 +0.096 +0.096 +0.097 +0.097 1n5266ur 1n5267ur 1n5268ur 1n5269ur 1n5270ur 68 75 82 87 91 1.8 1.7 1.5 1.4 1.4 230 270 330 370 400 1600 1700 2000 2200 2300 0.1 0.1 0.1 0.1 0.1 49 53 59 65 66 52 56 62 68 69 10 10 10 10 10 +0.097 +0.098 +0.098 +0.099 +0.099 1n5271ur 1n5272ur 1n5273ur 1n5274ur 1n5275ur 100 110 120 130 140 1.3 1.1 1.0 .95 .90 500 750 900 1100 1300 2600 3000 4000 4500 4500 0.1 0.1 0.1 0.1 0.1 72 80 86 94 101 76 84 91 99 106 10 10 10 10 10 +0.0110 +0.0110 +0.0110 +0.0110 +0.0110 1n5276ur 1n5277ur 1n5278ur 1n5279ur 1n5280ur 150 160 170 180 190 .85 .80 .74 .68 .66 1500 1700 1900 2200 2400 5000 5500 5500 6000 6500 0.1 0.1 0.1 0.1 0.1 108 116 123 130 137 114 122 129 137 144 10 10 10 10 10 +0.0110 +0.0110 +0.0110 +0.0110 +0.0110 1n5281ur 200 .65 2500 7000 0.1 144 152 10 +0.0110 microsemi scottsdale division page 2 * t a = 25 o c unless otherwise noted. based on dc measurements at t hermal equilibrium; case temperature maintained at 30 +/- 2 o c. v f = 1.1v max @ i f = 200 ma for all types. see further notes on following page. copyright ? 2005 8-29-2005 rev b 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941-6300, fax: (480) 947-1503 downloaded from: http:///
500 mw glass surface mount zener diodes www. microsemi . com scottsdale division 1n5221ur thru 1N5281BUR, e3 (or mll5221 thru mll5281b, e3) 1n5221ur thru 1n5281 r note 1: table as shown lists type numbers, which indicate a tolerance of +/-20% with guaranteed limits on only v z , i r , and v f . devices with guaranteed limits on all six parameters are indicated by suffix a for +/-10%, b for +/-5%, c for +/-2%, and d for +/-1 % tolerance. note 2: the electrical characteristics are measured afte r allowing the device to stabilize for 20 seconds. note 3: temperature coefficient ( vz ). test conditions for temperat ure coefficient are as follows: a. i zt = 7.5 ma, t 1 = 25 o c, t 2 = 125 o c (1n5221aur & bur thru 1n5242aur & bur) b. i zt = rated i zt , t 1 = 25 o c, t 2 = 125 o c (1n5243aur & bur thru 1n5281aur & bur) device to be temperature stabilized with current applied pr ior to reading breakdown voltage at the specified ambient temperat ure. note 4: these devices may be ordered as either 1n52 21ur thru 1N5281BUR or as mll5221 thru mll5281b part numbers. graph s microsemi scottsdale division page 3 copyright ? 2005 8-29-2005 rev b bu t ec C end cap temperature ( o c), or temperature coefficient %/ o c rated power dissipation t a ambient temperature on fr4 pc board nominal zener voltage (volts) temperature coefficient mv/ o c voltage temperature coefficient %/ o c t ec t a mv change /oc figure 1 figure 2 power derating curve zener voltage temperature coefficient vs. zener voltage pack age di m en si on s pad layout inches millimeters dim min max min max a 0.063 0.067 1.60 1.70 b 0.130 0.146 3.30 3.70 c 0.016 0.022 0.41 0.55 inches mm a .200 5.08 b .055 1.40 c .080 2.03 figure 3 capacitance vs. zener voltage (typical) 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941-6300, fax: (480) 947-1503 downloaded from: http:///
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