ds31037 rev. 6 - 2 1 of 3 mmbz5221bw - mmbz5259bw www.diodes.com diodes incorporated mmbz5221bw - mmbz5259bw 200mw surface mount zener diode features planar die construction ultra-small surface mount package general purpose ideally suited for automated assembly processes also available in lead free version case: sot-323, 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: see table on page 2 weight: 0.006 grams (approx.) mechanical data a m j l e d b c h k g characteristic symbol value unit forward voltage @ i f = 10ma v f 0.9 v power dissipation (note 1) p d 200 mw thermal resistance, junction to ambient air (note 1) r ja 625 c/w operating and storage temperature range t j, t stg -65 to +150 c maximum ratings @ t a = 25 c unless otherwise specified sot-323 dim min max a 0.25 0.40 b 1.15 1.35 c 2.00 2.20 d 0.65 nominal e 0.30 0.40 g 1.20 1.40 h 1.80 2.20 j 0.0 0.10 k 0.90 1.00 l 0.25 0.40 m 0.10 0.18 0 8 all dimensions in mm * add ?-7? to the appropriate type number in table 1 from sheet 2 example: 6.2v zener = mmbz5234bw-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. short duration test pulse used to minimize self-heating effect. 3. f = 1khz. 4. 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 a bove. example: mmbz5259bw-7-f. device packaging shipping (type number)-7* sot-323 3000/tape & reel ordering information (note 4)
ds31037 rev. 6 - 2 2 of 3 mmbz5221bw - mmbz5259bw www.diodes.com electrical characteristics table 1 @ t a = 25 c unless otherwise specified notes: 2. short duration test pulse used to minimize self-heating effect. 3. f = 1khz. type number marking code zener voltage range (note 2) test current maximum zener impedance (note 3) 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 mmbz5221bw kc1 2.4 2.28 2.52 20 30 1200 100 1.0 mmbz5223bw kc3 2.7 2.57 2.84 20 30 1300 75 1.0 mmbz5225bw kc5 3.0 2.85 3.15 20 30 1600 50 1.0 mmbz5226bw kg1 3.3 3.14 3.47 20 28 1600 25 1.0 mmbz5227bw kg2 3.6 3.42 3.78 20 24 1700 15 1.0 mmbz5228bw kg3 3.9 3.71 4.10 20 23 1900 10 1.0 mmbz5229bw kg4 4.3 4.09 4.52 20 22 2000 5.0 1.0 mmbz5230bw kg5 4.7 4.47 4.94 20 19 1900 5.0 2.0 mmbz5231bw ke1 5.1 4.85 5.36 20 17 1600 5.0 2.0 mmbz5232bw ke2 5.6 5.32 5.88 20 11 1600 5.0 3.0 mmbz5234bw ke4 6.2 5.89 6.51 20 7.0 1000 5.0 4.0 mmbz5235bw ke5 6.8 6.46 7.14 20 5.0 750 3.0 5.0 mmbz5236bw kf1 7.5 7.13 7.88 20 6.0 500 3.0 6.0 mmbz5237bw kf2 8.2 7.79 8.61 20 8.0 500 3.0 6.5 mmbz5239bw kf4 9.1 8.65 9.56 20 10 600 3.0 7.0 mmbz5240bw kf5 10 9.50 10.50 20 17 600 3.0 8.0 mmbz5241bw kh1 11 10.45 11.55 20 22 600 2.0 8.4 mmbz5242bw kh2 12 11.40 12.60 20 30 600 1.0 9.1 mmbz5243bw kh3 13 12.35 13.65 9.5 13 600 0.5 9.9 mmbz5245bw kh5 15 14.25 15.75 8.5 16 600 0.1 11 mmbz5246bw kj1 16 15.20 16.80 7.8 17 600 0.1 12 mmbz5248bw kj3 18 17.10 18.90 7.0 21 600 0.1 14 mmbz5250bw kj5 20 19.00 21.00 6.2 25 600 0.1 15 mmbz5251bw kk1 22 20.90 23.10 5.6 29 600 0.1 17 mmbz5252bw kk2 24 22.80 25.20 5.2 33 600 0.1 18 MMBZ5254BW kk4 27 25.65 28.35 5.0 41 600 0.1 21 mmbz5255bw kk5 28 26.60 29.40 4.5 44 600 0.1 21 mmbz5256bw km1 30 28.50 31.50 4.2 49 600 0.1 23 mmbz5257bw km2 33 31.35 34.65 3.8 58 700 0.1 25 mmbz5258bw km3 36 34.20 37.80 3.4 70 700 0.1 27 mmbz5259bw km4 39 37.05 40.95 3.2 80 800 0.1 30 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 date code key xxx = product type marking code (see table 1) ym = date code marking y = year ex: n = 2002 m = month ex: 9 = september xxx ym marking information
ds31037 rev. 6 - 2 3 of 3 mmbz5221bw - mmbz5259bw 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=25c j f = 1mhz 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 0 10 20 30 40 50 01 2 3 4 5 6 7 891 0 i , zener c urrent ( ma ) z v , zener voltage (v) z fig. 5 zener breakdown characteristics t = 25c j 5v6 6v8 8v2 te s t c u r r e n t i z 20ma 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 nominal zener voltage 10 12 18 22 27 33 36 15 39 1 10 100 1000 1 10 100 v , nominal zener voltage (v) z fig. 3 zener voltage vs. zener impedence i = 1.0ma z
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