ds30267 rev. 5 - 2 1 of 3 mmbz5221bt - mmbz5259bt www.diodes.com diodes incorporated mmbz5221bt - mmbz5259bt 150mw surface mount zener diode features ultra-small surface mount package planar die construction general purpose ideally suited for automated assembly processes also available in lead free version mechanical data a m j l d b c h k g n characteristic symbol value unit zener current (see table on page 2) forward voltage @ i f = 10ma v f 0.9 v power dissipation (note 1) p d 150 mw thermal resistance, junction to ambient (note 1) r ja 833 c/w operating and storage temperature range t j, t stg -65 to +150 c notes: 1. device mounted on fr-4 pc board with recommended pad layout at http://www.diodes.com/datasheets/ap02001.pdf. maximum ratings @ t a = 25 c unless otherwise specified case: sot-523, molded plastic case material - ul flammability rating classification 94v-0 moisture sensitivity: level 1 per j-std-020a terminals: solderable per mil-std-202, method 208 also available in lead free plating (matte tin finish). please see ordering information, note 5, on page 2 polarity: see diagram marking: see table, sheet 2 and below weight: 0.002 grams (approx.) ordering information, see sheet 2 t c u d o r p w e n sot-523 dim min max typ a 0.15 0.30 0.22 b 0.75 0.85 0.80 c 1.45 1.75 1.60 d 0.50 g 0.90 1.10 1.00 h 1.50 1.70 1.60 j 0.00 0.10 0.05 k 0.60 0.80 0.75 l 0.10 0.30 0.22 m 0.10 0.20 0.12 n 0.45 0.65 0.50 0 8 all dimensions in mm month jan feb march apr may jun jul aug sep oct nov dec code 1234567 89 o nd year 2002 2003 2004 2005 2006 2007 2008 2009 code nprst uvw date code key kxx = product type marking code ym = date code marking y = year ex: n = 2002 m = month ex: 9 = september kxxym marking information
ds30267 rev. 5 - 2 2 of 3 mmbz5221bt - mmbz5259bt www.diodes.com electrical characteristics @ t a = 25 c unless otherwise specified type number marking code zener voltage range (note 2) test current maximum zener impedance (note 4) maximum reverse leakage current (note 2) v z @ i zt i zt z zt @ i zt z zk @ i zk = 0.25ma i r @v r nom (v) min (v) max (v) ma a v mmbz5221bt kc1 2.4 2.28 2.52 20 30 1200 100 1.0 mmbz5223bt kc3 2.7 2.57 2.84 20 30 1300 75 1.0 mmbz5225bt kc5 3.0 2.85 3.15 20 30 1600 50 1.0 mmbz5226bt kg1 3.3 3.14 3.47 20 28 1600 25 1.0 mmbz5227bt kg2 3.6 3.42 3.78 20 24 1700 15 1.0 mmbz5228bt kg3 3.9 3.71 4.10 20 23 1900 10 1.0 mmbz5229bt kg4 4.3 4.09 4.52 20 22 2000 5.0 1.0 mmbz5230bt kg5 4.7 4.47 4.94 20 19 1900 5.0 2.0 mmbz5231bt ke1 5.1 4.85 5.36 20 17 1600 5.0 2.0 mmbz5232bt ke2 5.6 5.32 5.88 20 11 1600 5.0 3.0 mmbz5234bt ke4 6.2 5.89 6.51 20 7.0 1000 5.0 4.0 mmbz5235bt ke5 6.8 6.46 7.14 20 5.0 750 3.0 5.0 mmbz5236bt kf1 7.5 7.13 7.88 20 6.0 500 3.0 6.0 mmbz5237bt kf2 8.2 7.79 8.61 20 8.0 500 3.0 6.5 mmbz5239bt kf4 9.1 8.65 9.56 20 10 600 3.0 7.0 mmbz5240bt kf5 10 9.50 10.50 20 17 600 3.0 8.0 mmbz5241bt kh1 11 10.45 11.55 20 22 600 2.0 8.4 mmbz5242bt kh2 12 11.40 12.60 20 30 600 1.0 9.1 mmbz5243bt kh3 13 12.35 13.65 9.5 13 600 0.5 9.9 mmbz5245bt kh5 15 14.25 15.75 8.5 16 600 0.1 11 mmbz5246bt kj1 16 15.20 16.80 7.8 17 600 0.1 12 mmbz5248bt kj3 18 17.10 18.90 7.0 21 600 0.1 14 mmbz5250bt kj5 20 19.00 21.00 6.2 25 600 0.1 15 mmbz5251bt kk1 22 20.90 23.10 5.6 29 600 0.1 17 mmbz5252bt kk2 24 22.80 25.20 5.2 33 600 0.1 18 MMBZ5254BT kk4 27 25.65 28.35 5.0 41 600 0.1 21 mmbz5255bt kk5 28 26.60 29.40 4.5 44 600 0.1 21 mmbz5256bt km1 30 28.50 31.50 4.2 49 600 0.1 23 mmbz5257bt km2 33 31.35 34.65 3.8 58 700 0.1 25 mmbz5258bt km3 36 34.20 37.80 3.4 70 700 0.1 27 mmbz5259bt km4 39 37.05 40.95 3.2 80 800 0.1 30 t c u d o r p w e n table 1 ordering information (note 3) device packaging shipping (type number)-7* sot-523 3000/tape & reel * add ?-7? to the appropriate type number in table 1 above. example: 6.2v zener = mmbz5234bt-7. notes: 2. short duration test pulse used to minimize self-heating effect. 3. for packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. 4. f = 1khz. 5. for lead free version (with lead free terminal finish) part number, please add "-f" suffix to part number a bove. example: mmbz5259bt-7-f.
ds30267 rev. 5 - 2 3 of 3 mmbz5221bt - mmbz5259bt www.diodes.com 0 100 200 300 25 0 50 75 100 125 150 p , power dissipation (mw) d t , ambient temperature ( c) a fi g . 1 power dissipation vs ambient temperature t c u d o r p w e n c , total capacitance (pf) t 10 100 1000 10 100 1 v , nominal zener voltage (v) z fig. 2 total capacitance vs nominal zener voltage t=25c j v=1v r v=2v r 1 10 100 1 10 100 p , peak surge power (w) pk pulse width (ms) fi g . 4 maximum non-repetitive sur g e power 1000 1 10 100 1000 1 10 100 v , nominal zener voltage (v) z fig. 3 zener voltage vs. zener impedence i = 1.0ma z 0 10 20 30 0 i , zener current (ma) z v , zener voltage (v) z fi g . 6 zener breakdown characteristics 10 20 30 40 t = 25c j test current i z 10 12 18 22 27 33 36 15 39 nominal zener voltage 0 10 20 30 40 50 01 2 3 4 5 6 7 8910 i , zener current (ma) z v , zener voltage (v) z fi g . 5 zener breakdown characteristics t = 25c j 5v6 6v8 8v2 test current i z 20ma
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