z1220c ~ Z1380C silicon zener diodes v z : 220 - 380 volts p d : 1 watt features : * complete voltage range 220 to 380 volts * high peak reverse power dissipation * high reliability * low leakage current * pb / rohs free mechanical data * case : do-41 molded plastic * epoxy : ul94v-o rate flame retardant * lead : axial lead solderable per mil-std-202, method 208 guaranteed * polarity : color band denotes cathode end * mounting position : any * weight : 0.335 gram maximum ratings (rating at 25 c ambient temperature unless otherwise specified) rating symbol value unit dc power dissipation at t l = 50 c (note1) p d 1.0 w maximum forward voltage at i f = 200 ma v f 2.0 v maximum thermal resistance junction to ambient air (note2) r ? ja 170 k / w junction temperature range t j - 55 to + 175 c storage temperature range t stg - 55 to + 175 c electrical characteristics (rating at 25 c ambient temperature unless otherwise specified) nominal zener maximum zener maximum reverse maximum dc maximum voltage impedance leakage current zener current surge current v z @ i zt i zt z zt @ i zt z zk @ i zk i zk i r @ v r i zm i rm (4) (note 3) (v) (ma) ( ? )( ? ) (ma) ( a) (v) (ma) (mapk) z1220c 220 1.00 1600 8000 0.25 5.0 167.2 4.0 20 z1240c 240 0.93 1800 8500 0.25 5.0 182.4 3.8 19 z1250c 250 0.90 2000 9000 0.25 5.0 190 3.6 18 z1270c 270 0.82 2100 9000 0.25 5.0 205 3.3 16 z1300c 300 0.75 2300 9500 0.25 5.0 228 3.0 15 z1330c 330 0.70 2500 9500 0.25 5.0 250 2.8 13 Z1380C 380 0.60 2700 9500 0.25 5.0 288 2.4 12 notes : (1) t l = lead temperature at 3/8 " (9.5mm) from body (2) valid provided that leads are kept at ambient temperature at a distance of 10 mm from case. (3) the type number listed have a standard tolerance on the nominal zener voltage of 2%. no suffix indicates 10% tolerance, suffix "a" indicates 5% tolerance. (4) the revese surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed on i zt per jedec method page 1 of 1 rev. 01 : november 30, 2007 type no. do - 41 dimensions in inches and ( millimeters ) 1.00 (25.4) min. 0.108 (2.74) 0.078 (1.99) 0.205 (5.20) 0.161 (4.10) 1.00 (25.4) min. 0.034 (0.86) 0.028 (0.71) certificate th97/10561qm certificate tw00/17276em
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