planar die construction 500mw power dissipation general purpose, medium current ideally suited for automated assembly processes case: sod-123, plastic ul flammability classification rating 94v-0 polarity: cathode band weight: 0.01grams (approx.) maximum ratings characteristic symbol value unit forward voltage (note 2) @ i f = 10ma v f 0.9 v power dissipation (note 1) p d 500 mw thermal resistance, junction to ambient air (note 1) r ja 350 c/w operating and storage temperature range t j, t stg -65 to +150 c notes: 1. device mounted on ceramic pcb; 7.6 mm x 9.4 mm x 0.87 mm with pad areas 25 mm 2 . 2. short duration test pulse used to minimize self-heating effect. mmsz 52 21b - mmsz5259b 500mw surface mount zener diode maximum ratings and electrical characteristics rating at 25 o c ambient temperature unle ss otherwise specified. ? ? ? ? ? ? ? ? features mechanical data sod-123 dimensions in inches and (millimeters) 0.053(1.35) max. 0.006(0.15) typ. min. 0.010(0.25) min. 0.004(0.10) max. 0.067(1.70) 0.055(1.40) 0.022(0.55) typ. min. 0.152(3.85) 0.140(3.55) 0.112(2.85) 0.100(2.55) http://www.luguang.cn mail:lge@luguang.cn
type number type 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 mmsz5221b c1 2.4 2.28 2.52 20 30 1200 100 1.0 mmsz5223b c3 2.7 2.57 2.84 20 30 1300 75 1.0 mmsz5225b c5 3.0 2.85 3.15 20 30 1600 50 1.0 mmsz5226b g1 3.3 3.14 3.47 20 28 1600 25 1.0 mmsz5227b g2 3.6 3.42 3.78 20 24 1700 15 1.0 mmsz5228b g3 3.9 3.71 4.10 20 23 1900 10 1.0 mmsz5229b g4 4.3 4.09 4.52 20 22 2000 5.0 1.0 mmsz5230b g5 4.7 4.4 7 4.94 20 19 1900 5.0 2.0 mmsz5231b e1 5.1 4.85 5.36 20 17 1600 5.0 2.0 mmsz5232b e2 5.6 5.32 5.88 20 11 1600 5.0 3.0 mmsz5233b e3 6.0 5.70 6.30 20 7 1600 5.0 3.5 mmsz5234b e4 6.2 5.89 6.51 20 7 1000 5.0 4.0 mmsz5235b e5 6.8 6.46 7.14 20 5 750 3.0 5.0 mmsz5236b f1 7.5 7.13 7.88 20 6 500 3.0 6.0 mmsz5237b f2 8.2 7.79 8.61 20 8 500 3.0 6.5 mmsz5238b f3 8.7 8.27 9.14 20 8 600 3.0 6.5 mmsz5239b f4 9.1 8.65 9.56 20 10 600 3.0 7.0 mmsz5240b f5 10 9.50 10.50 20 17 600 3.0 8.0 mmsz5241b h1 11 10.45 11.55 20 22 600 2.0 8.4 mmsz5242b h2 12 11.40 12.60 20 30 600 1.0 9.1 mmsz5243b h3 13 12.35 13.65 9.5 13 600 0.5 9.9 mmsz5245b h5 15 14.25 15.75 8.5 16 600 0.1 11 mmsz5246b j1 16 15.20 16.80 7.8 17 600 0.1 12 MMSZ5248B j3 18 17.10 18.90 7.0 21 600 0.1 14 mmsz5250b j5 20 19.00 21.00 6.2 25 600 0.1 15 mmsz5251b k1 22 20.90 23.10 5.6 29 600 0.1 17 mmsz5252b k2 24 22.80 25.20 5.2 33 600 0.1 18 mmsz5254b k4 27 25.65 28.35 5.0 41 600 0.1 21 mmsz5255b k5 28 26.60 29.40 4.5 44 600 0.1 21 mmsz5256b m1 30 28.50 31.50 4.2 49 600 0.1 23 mmsz5257b m2 33 31.35 34.65 3.8 58 700 0.1 25 mmsz5258b m3 36 34.20 37.80 3.4 70 700 0.1 27 mmsz5259b m4 39 37.05 40.95 3.2 80 800 0.1 30 electrical characteristics notes: 1. device mounted on ceramic pcb; 7.6 mm x 9.4 mm x 0.87 mm with pad areas 25 mm 2 . 2. short duration test pulse used to minimize self-heating effect. 3. f = 1khz. mmsz 52 21b - mmsz5259b 500mw surface mount zener diode http://www.luguang.cn mail:lge@luguang.cn
0 0.1 0.2 0.3 0.4 0.5 25 05 0 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 0.6 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 0 0.1 0.2 0.3 0.4 0.5 25 05 0 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 0.6 1 10 100 1000 11 01 0 0 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 fig. 5 zener breakdown characteristics t = 25c j 5v6 6v8 8v2 test current i z 20ma mmsz 52 21b - mmsz5259b 500mw surface mount zener diode
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