number: db-207 dec. 2009 release, revision a page 1 tak cheong ? semiconductor 500mw sod-123 surface mount flat lead surface mount plastic package zener voltage regulators green product absolute maximum ratings t a = 25c unless otherwise noted symbol parameter value units p d power dissipation 500 mw t stg storage temperature range -65 to +150 c t opr operating temperature range -65 to +150 c these ratings are limiting values above which the serviceability of the diode may be impaired. specification features: ? wide zener voltage range selection, 4.3v to 75v ? vz tolerance selection of 2% ? flat lead sod-123 plastic package ? surface device type mounting ? rohs compliant ? green emc ? matte tin(sn) lead finish ? band indicates cathode electrical characteristics t a = 25c unless otherwise noted v z @ i zt (volts) device type device marking min nom max i zt (ma) z zt @ i zt ( ) max z zk @ i zk = 0.25ma ( ) max i r @ v r ( a) max v r (volts) mmsz5229cw 229c 4.214 4.3 4.386 20 22 2000 5 1 mmsz5230cw 230c 4.606 4.7 4.794 20 19 1900 5 2 mmsz5231cw 231c 4.998 5.1 5.202 20 17 1600 5 2 MMSZ5232CW 232c 5.488 5.6 5.712 20 11 1600 5 3 mmsz5233cw 233c 5.88 6.0 6.12 20 7 1600 5 3.5 mmsz5234cw 234c 6.076 6.2 6.324 20 7 1000 5 4 mmsz5235cw 235c 6.664 6.8 6.936 20 5 750 3 5 mmsz5236cw 236c 7.35 7.5 7.65 20 6 500 3 6 mmsz5237cw 237c 8.036 8.2 8.364 20 8 500 3 6.5 mmsz5238cw 238c 8.526 8.7 8.874 20 8 600 3 6.5 mmsz5239cw 239c 8.918 9.1 9.282 20 10 600 3 7 mmsz5240cw 240c 9.8 10 10.2 20 17 600 3 8 mmsz5241cw 241c 10.78 11 11.22 20 22 600 2 8.4 mmsz5242cw 242c 11.76 12 12.24 20 30 600 1 9.1 mmsz5243cw 243c 12.74 13 13.26 9.5 13 600 0.5 9.9 mmsz5244cw 244c 13.72 14 14.28 9 15 600 0.1 10 mmsz5245cw 245c 14.7 15 15.3 8.5 16 600 0.1 11 mmsz5246cw 246c 15.68 16 16.32 7.8 17 600 0.1 12 mmsz5247cw 247c 16.66 17 17.34 7.4 19 600 0.1 13 mmsz5248cw 248c 17.64 18 18.36 7 21 600 0.1 14 mmsz5249cw 249c 18.62 19 19.38 6.6 23 600 0.1 14 mmsz5250cw 250c 19.6 20 20.4 6.2 25 600 0.1 15 electrical symbol mmsz5221cw through mmsz5267cw cathode anode sod-123 flat lead
number: db-207 dec. 2009 release, revision a page 2 tak cheong ? semiconductor electrical characteristics t a = 25c unless otherwise noted v z @ i zt (volts) device type device marking min nom max i zt (ma) z zt @ i zt ( ) max z zk @ i zk = 0.25ma ( ) max i r @ v r ( a) max v r (volts) mmsz5251cw 251c 21.56 22 22.44 5.6 29 600 0.1 17 mmsz5252cw 252c 23.52 24 24.48 5.2 33 600 0.1 18 mmsz5253cw 253c 24.5 25 25.5 5 35 600 0.1 19 mmsz5254cw 254c 26.46 27 27.54 4.6 41 600 0.1 21 mmsz5255cw 255c 27.44 28 28.56 4.5 44 600 0.1 21 mmsz5256cw 256c 29.4 30 30.6 4.2 49 600 0.1 23 mmsz5257cw 257c 32.34 33 33.66 3.8 58 700 0.1 25 mmsz5258cw 258c 35.28 36 36.72 3.4 70 700 0.1 27 mmsz5259cw 259c 38.22 39 39.78 3.2 80 800 0.1 30 mmsz5260cw 260c 42.14 43 43.86 3 93 900 0.1 33 mmsz5261cw 261c 46.06 47 47.94 2.7 105 1000 0.1 36 mmsz5262cw 262c 49.98 51 52.02 2.5 125 1100 0.1 39 mmsz5263cw 263c 54.88 56 57.12 2.2 150 1300 0.1 43 mmsz5264cw 264c 58.8 60 61.2 2.1 170 1400 0.1 46 mmsz5265cw 265c 60.76 62 63.24 2.0 185 1400 0.1 47 mmsz5266cw 266c 66.64 68 69.36 1.8 230 1600 0.1 52 mmsz5267cw 267c 73.5 75 76.5 1.7 270 1700 0.1 56 v f forward voltage = 900mv maximum @ i f = 10 ma for all types notes: 1. the zener voltage ( v z ) is tested under pulse condition of 1ms. 2. the device numcers listed have a standard tolerance on the nominal zener voltage of 2%. 3. the zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an rms value equal to 10% of the dc zener current ( i zt or i zk ) is superimposed to i zt or i zk. 4. for detailed information on price, availacility and delivery of nominal zener voltages cetween the voltages shown and tighte r voltage tolerances, contact your nearest tak cheong electronics representative.
number: db-207 dec. 2009 release, revision a page 3 tak cheong ? semiconductor typical characteristic curves fig.1 typical forward voltage fig.2 effect of zener voltage on zener impedance fig.4 typical capacitance fig.5 zener breakdown characteristics fig.6 zener breakdown characteristics 0 100 200 300 400 500 600 0 25 50 75 100 125 150 175 200 temperature [ ] power passipation, mw fig.3 power dissipation vs. ambient temp.
number: db-207 dec. 2009 release, revision a page 4 tak cheong ? semiconductor flat lead sod-123 package outline note: dimensions are exclusive of currs, mold flash & tie car extrusions. fig.7 typical leakge current
number: db-100 april 14, 2008 / a disclaimer notice tak cheong ? notice the information presented in this document is for reference only. tak cheong reserves the right to make changes without notice for the specification of the products displayed herein. the product listed herein is designed to be used with ordinary electronic equipment or devices, and not designed to be used with equipment or devices which require high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controlle rs and other safety devices), tak cheong semiconductor co., ltd., or anyone on its behalf, assumes no responsi bility or liability for any damagers resulting from such improper use of sale. this publication supersedes & replaces all information reviously supplied. for additional information, please visit our website http://www.takcheong.com , or consult your nearest tak cheong?s sales office for further assistance.
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