metallurgically bonded glass surface mount 500 mw zeners www. microsemi . com scottsdale division 1n5221ur-1 thru 1n5281bur-1,e3 (or mll5221-1 thru mll5281b-1,e3) 1n5221ur thru 1n5281bur description appearance the 1n5221bur-1 thru 1n5281bur-1 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 a metallurgically bonded configuration. they are available with standard 5%, 10%, or 20% tolerances as well as tighter tolerances identified by different suffix letters on the part number. microsemi also offers numerous other zener products to meet higher and lower power applications. do-213aa important: for the most current data, consult microsemi?s website: http://www.microsemi.com features applications / benefits ? surface mount equivalents to the jedec registered 1n5221 thru 1n5281b series ? hermetically sealed surface mount package ? internal metallurgical bond ? options for screening in accordance with mil-prf- 19500 for jan, jantx, jantxv, and jans are available by adding mq, mx, mv, or msp prefixes respectively to part numbers ? rohs compliant devices available by adding ?e3? 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 maximum ratings mechanical and packaging ? operating and storage temperature: -65 o c to +175 o c ? thermal resistance: 100 o c/w junction to end cap and 250 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 < 125 o c or ambient temperature t a < 50 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 a 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941-6300, fax: (480) 947-1503
metallurgically bonded glass surface mount 500 mw zeners www. microsemi . com scottsdale division 1n5221ur-1 thru 1n5281bur-1,e3 (or mll5221-1 thru mll5281b-1,e3) 1n5221ur thru 1n5281bur electrical characteristics* 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-1 1n5222ur-1 1n5223ur-1 1n5224ur-1 1n5225ur-1 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-1 1n5227ur-1 1n5228ur-1 1n5229ur-1 1n5230ur-1 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-1 1n5232ur-1 1n5233ur-1 1n5234ur-1 1n5235ur-1 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-1 1n5237ur-1 1n5238ur-1 1n5239ur-1 1n5240ur-1 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-1 1n5242ur-1 1n5243ur-1 1n5244ur-1 1n5245ur-1 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-1 1n5247ur-1 1n5248ur-1 1n5249ur-1 1n5250ur-1 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-1 1n5252ur-1 1n5253ur-1 1n5254ur-1 1n5255ur-1 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-1 1n5257ur-1 1n5258ur-1 1n5259ur-1 1n5260ur-1 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-1 1n5262ur-1 1n5263ur-1 1n5264ur-1 1n5265ur-1 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-1 1n5267ur-1 1n5268ur-1 1n5269ur-1 1n5270ur-1 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-1 1n5272ur-1 1n5273ur-1 1n5274ur-1 1n5275ur-1 100 110 120 130 140 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-1 1n5277ur-1 1n5278ur-1 1n5279ur-1 1n5280ur-1 150 160 170 180 190 .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-1 200 .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 a 8700 e. thomas rd. po box 1390, scottsdale, az 85252 usa, (480) 941-6300, fax: (480) 947-1503
metallurgically bonded glass surface mount 500 mw zeners www. microsemi . com scottsdale division 1n5221ur-1 thru 1n5281bur-1,e3 (or mll5221-1 thru mll5281b-1,e3) 1n5221ur thru 1n5281bur 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-1 & bur-1 thru 1n5242aur-1 & bur-1) b. i zt = rated i zt , t 1 = 25 o c, t 2 = 125 o c (1n5243aur-1 & bur-1 thru 1n5281aur-1 & bur-1) 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 1n5221ur- 1 thru 1n5281bur-1 or as mll5221- 1 thru mll5281b-1 part numbers. graphs microsemi scottsdale division page 3 copyright ? 2005 8-29-2005 rev a temperature coefficient mv/ o c temperature coefficient %/ o c voltage temperature coefficient %/ o c mw t ec t a - rated power mv change /oc t ec end cap temperature (oc), or nominal zener voltage (volts) t a ambient temperature on fr4 pc board figure 2 figure 1 zener voltage temperature power derating curve coefficient vs. zener voltage package dimensions 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 pad layout 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
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