20D Series Varistor Type MYG Type MYG Varistors are made of semiconductor ceramic materials composed mainly of zinc oxide. They have non-linear resistance that changes as a function of applied voltage. It has small size, high current capacity, and high protection level. Features > > > > Wide Varistor voltage range (18V～１８００V) Excellent non-linearity and protection level Large withstanding surge current Fast response（≤20ns） Recommended Applications > ＞> > > Protection of semiconductors Surge protection of consumer equipment Surge protection of communication, measuring or controller instrument Relay or electromagnetic Valve surge absorption Explanation of Part Numbers D Element Size 20 20mm Varistor Voltage The first two digits are Significant figures and the third one denotes number of zeros following Voltage Tolerance K:±10% Dimension Range of voltage (V) D max 18 - 68 82 - 1800 REV.2015.02.01 23.0 23.5 Dimensions(mm) T max L min d±0.1 4.1~5.5 25 4.8~15.5 25 1.0 1.0 D1±1.0 10.0 10.0 01 | www.spsemi.cn 20D Series Specification and Electrical Characteristics Part Number Maximum Allowable Maximum Voltage Energy 20D182K 20D152K 20D112K 20D102K 20D911K 20D821K 20D781K 20D751K 20D681K 20D621K 20D561K 20D511K * 20D471K 20D431K 20D391K 20D361K 20D331K 20D301K * 20D271K 20D241K 20D221K 20D201K 20D181K 20D151K 20D121K 20D101K * 20D820K 20D680K 20D560K * 20D470K 20D390K 20D330K 20D270K 20D220K 20D180K Acrms (V) 1000 750 680 625 550 510 485 460 420 385 350 320 300 275 250 230 210 190 175 150 140 130 115 95 75 60 50 40 35 30 25 20 17 14 11 DC (V) 1465 1300 895 825 745 670 640 615 560 505 460 415 385 350 320 300 275 250 225 200 180 170 150 125 100 85 65 56 45 38 31 26 22 18 14 10/100μS (J) 560.0 420.0 280.0 280.0 280.0 266.0 266.0 266.0 224.0 224.0 210.0 210.0 210.0 196.0 182.0 168.0 140.0 133.0 126.0 112.0 105.0 98.0 84.0 70.0 56.0 42.0 37.8 23.8 19.6 16.8 13.2 11.2 9.1 7.4 6.1 Withstanding Surge Current 8/20μs 1 time Rated Wattage 2times (W) (A) 6500 4000 1.0 2000 1000 0.2 Varistor Voltage Maximum Clamping Voltage V1mA (V) 1800(1620-1980) 1500(1350-1650) 1100(990-1210) 1000(900-1100) 910(819-1001) 820(738-902) 780(702-858) 750(675-825) 680(612-748) 620(558-682) 560(504-616) 510(459-561) 470(423-517) 430(387-473) 390(351-429) 360(324-396) 330(297-363) 300(270-330) 270(243-297) 240(216-264) 220(198-242) 200(180-220) 180(162-198) 150(135-165) 120(108-132) 100(90-110) 82(74-90) 68(61-75) 56(50-62) 47(42-52) 39(35-43) 33(30-36) 27(24-30) 22(20-24) 18(15-21) V100A (V) 2970 2475 1815 1650 1500 1355 1290 1240 1120 1025 920 845 775 710 650 595 550 505 455 395 360 330 300 250 200 165 135 *135 *110 *93 *77 *65 *53 *43 *38 Note：1、* Stand for commonly used models 2、Varistor voltage is measured at 0.1 mA for 05D, and at 1 mA for 07D, 10D, 14D, 20D, respectively. 3、Operating Temperature Range: －40℃～+85℃ Storage Temperature Range: －40℃～+125℃ REV.2015.02.01 02 | www.spsemi.cn