ee american AMERICAN POWER DEVICES Hevices ZENER DIODES MELF PACKAGED earl Zener mCi ELECTRICAL CHARACTERISTICS Correll M@ 0737135 ooooos;0 8 am T=-1)-l] ZENER DIODES: A summary These are devices with sharp reverse breakdown regions. They are designed to be operated at their breakdown voltage as constant voltage elements for control circuitry, where the current is limited solely by the external circuit resistance. Zener diodes, also known as avalanche diodes and regulator diodes, are used in voltage regulator circuits, most commonly in power supplies, and in clipping, shunting and coupling applications. 17VOLT + f Pr eMtirs eT T un aN eee BCDC Uc) Voltage Impedance Coefficient Vz @ IzT Izt Zzt @ Izt i Tc mA are 7 %/C ALL 5226 3.3 28 .070 ALL 5227 3.6 24 065 ALL 5228 3.9 20 23 .060 ALL 5229 4.3 22 + .055 ALL 5230 4.7 19 + .030 ALL 5231 5.1 17 +.030 F300 ALL 5232 5.6 - 20 W +.038 ALL 6233 6.0 7 .038 ALL 5234 6.2 7 .045 Lapoma ALL 5235 6.8 5 .050 ALL 5236 7.5 6 .058 saa . ALL 5237 8.2 20 8 062 The characteristic curve of a zener diode ALL 5238 8.7 8 .065 ALL 5239 9.1 10 .068 7 ~ - 7 LEADLESS DIODE CONSTRUCTION ALL S241 i 20.0 22 076 1 > - ALL 5242 12 20.0 30 077 500 mW LL34 ALL 5243 13 9.5 13 .079 ALL 5244 4 9.0 15 -082 ALL 6245 15 8.5 16 082 - ALL 5246 16 7.8 17 .083 HEADED - ALL 5247 17 74 19 .084 HEADED / ALL 5248 18 7.0 24 085 BUMPED . ALL 5249 19 6.6 23 .086 a GLASS SLEEVE - ALL 5260 20 6.2 25 086 seen ALL 5251 22 5.6 29 087 hoe ALL 5252 24 5.2 33 .088 = | ALL 5253 25 5.0 35 ,089 . ALL 5254 27 4.6 41 .090 a es % is r aa ALL 5257 33 3.8 58 092 uo aR ALL 5258 36 3.4 70 .093 ALL 5259 39 3.2 80 .094 ALL 5260 43 3.0 93 .095 . ALL 5261 47 2.7 105 .095 WY ALL 5262 51 2.5 425 ,096 ALL 5268 - 56 2.2 150 .096 ALL 5264 60 24 170 .097 Millimeters Inches ALL 5265 62 2.0 185 .097 Dim. ALL 5266 68 1.8 230 .097 Min. Max. Min. Max. Standard tolerance of + 10%. A suffix is + 10% tolerance and 'B suffix is +5% tolerance. A 3.30 3.70 0.130 0.146 +Zener impedance is derived from the 1kHz voltage created when AC current with RMS value of 10% of DC B 1.60 1.70 0.063 0.067 zener test current is superimposed on the test current. R 2.49 2.59 0.098 0.102 U 0.41 0.55 0.016 0.022 isky 09. 4340 | A american power devices A Fenwal Electronics, Inc. Company 7 andover street, andover, massachusetts 01810 tel. (508) 475-4074 fax (508) 475-8997