ds18011 rev. 8 - 2 1 of 3 mmbz5221b - mmbz5259b www.diodes.com diodes incorporated mmbz5221b - mmbz5259b 350mw surface mount zener diode planar die construction 350mw power dissipation on fr-4 pcb general purpose, medium current ideally suited for automated assembly processes also available in lead free version maximum ratings @ t a = 25 c unless otherwise specified characteristic symbol value unit forward voltage @ i f = 10ma v f 0.9 v power dissipation (note 1) p d 350 mw thermal resistance, junction to ambient air (note 1) r ja 357 c/w operating and storage temperature range t j, t stg -65 to +150 c case: sot-23, 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 1 polarity: see diagram marking: marking code (see table on page 2) weight: 0.008 grams (approx.) mechanical data a e j l m b c h g d k sot-23 dim min max a 0.37 0.51 b 1.20 1.40 c 2.30 2.50 d 0.89 1.03 e 0.45 0.60 g 1.78 2.05 h 2.80 3.00 j 0.013 0.10 k 0.903 1.10 l 0.45 0.61 m 0.085 0.180 0 8 all dimensions in mm * add ?-7? to the appropriate type number in table, sheet 2 example: 6.2v zener = mmbz5234b-7. notes: 1. mounted on fr4 pc board with recommended pad layout which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. 2. for packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. 5. for lead free version (with lead free terminal finish) part number, please add "-f" suffix to part number ab ove. example: mmbz5259b-7-f. device packaging shipping (type number)-7* sot-23 3000/tape & reel (note 2) ordering information features
ds18011 rev. 8 - 2 2 of 3 mmbz5221b - mmbz5259b www.diodes.com type number type code zener voltage range (note 3) maximum zener impedance (note 4) maximum reverse leakage current (note 3) 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 mmbz5221b kc1 2.4 2.28 2.52 20 30 1200 100 1.0 mmbz5223b kc3 2.7 2.57 2.84 20 30 1300 75 1.0 mmbz5225b kc5 3.0 2.85 3.15 20 30 1600 50 1.0 mmbz5226b kg1 3.3 3.14 3.47 20 28 1600 25 1.0 mmbz5227b kg2 3.6 3.42 3.78 20 24 1700 15 1.0 mmbz5228b kg3 3.9 3.71 4.10 20 23 1900 10 1.0 mmbz5229b kg4 4.3 4.09 4.52 20 22 2000 5.0 1.0 mmbz5230b kg5/8e 4.7 4.4 7 4.94 20 19 1900 5.0 2.0 mmbz5231b ke1 5.1 4.85 5.36 20 17 1600 5.0 2.0 mmbz5232b ke2 5.6 5.32 5.88 20 11 1600 5.0 3.0 mmbz5233b ke3 6.0 5.70 6.30 20 7 1600 5.0 3.5 mmbz5234b ke4 6.2 5.89 6.51 20 7 1000 5.0 4.0 mmbz5235b ke5 6.8 6.46 7.14 20 5 750 3.0 5.0 mmbz5236b kf1/8l 7.5 7.13 7.88 20 6 500 3.0 6.0 mmbz5237b kf2 8.2 7.79 8.61 20 8 500 3.0 6.5 mmbz5238b kf3 8.7 8.27 9.14 20 8 600 3.0 6.5 mmbz5239b kf4 9.1 8.65 9.56 20 10 600 3.0 7.0 mmbz5240b kf5 10 9.50 10.50 20 17 600 3.0 8.0 mmbz5241b kh1 11 10.45 11.55 20 22 600 2.0 8.4 mmbz5242b kh2/8s 12 11.40 12.60 20 30 600 1.0 9.1 mmbz5243b kh3 13 12.35 13.65 9.5 13 600 0.5 9.9 mmbz5245b kh5 15 14.25 15.75 8.5 16 600 0.1 11 mmbz5246b kj1 16 15.20 16.80 7.8 17 600 0.1 12 mmbz5248b kj3 18 17.10 18.90 7.0 21 600 0.1 14 mmbz5250b kj5 20 19.00 21.00 6.2 25 600 0.1 15 mmbz5251b kk1 22 20.90 23.10 5.6 29 600 0.1 17 mmbz5252b kk2 24 22.80 25.20 5.2 33 600 0.1 18 mmbz5254b kk4 27 25.65 28.35 5.0 41 600 0.1 21 mmbz5255b kk5 28 26.60 29.40 4.5 44 600 0.1 21 mmbz5256b km1 30 28.50 31.50 4.2 49 600 0.1 23 mmbz5257b km2 33 31.35 34.65 3.8 58 700 0.1 25 MMBZ5258B km3 36 34.20 37.80 3.4 70 700 0.1 27 mmbz5259b km4 39 37.05 40.95 3.2 80 800 0.1 30 electrical characteristics @ t a = 25 c unless otherwise specified notes: 3. short duration test pulse used to minimize self-heating effect. 4. f = 1khz. date code key xxx = product type marking code ym = date code marking y = year ex: n = 2002 m = month ex: 9 = september xxx ym marking information month jan feb march apr may jun jul aug sep oct nov dec code 1234567 89 o nd year 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 code jklmnpr st u vw
ds18011 rev. 8 - 2 3 of 3 mmbz5221b - mmbz5259b www.diodes.com 0 0.1 0.2 0.3 0.4 25 0 50 75 100 125 150 p,p o wer dissipati o n(w) d t , ambient temperature ( c) a fig. 1 power dissipation vs ambient temperature 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= 25 c j v = 1v r v = 2v r 1 10 100 1 10 100 p , peak surge p o wer (w) pk pulse width (ms) fig. 4 maximum non-repetitive surge 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 fig. 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 c urrent ( ma ) z v , zener voltage (v) z fig. 5 zener breakdown characteristics t = 25c j 5v6 6v8 8v2 test current i z 20ma
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