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| 20 SERIES www..com DATA SHEET ZINC OXIDE VARISTOR - 20 SERIES FEATURES Wide operating voltage (V1mA) range from 8V to 1800V. Fast responding to transient over-voltage. Large absorbing transient energy capability. Low clamping ratio and no following-on current. APPLICATION Transistor, diode, IC, thyristor or triac semiconductor protection. Surge protection in consumer electronics. Surge protection in industrial electronics. Surge protection in electronic home appliances, gas and petroleum appliances. Relay and electromagnetic valve surge absorption. PART NUMBER CODE BK Brand Name Tolerance K:10% L: 15% M: 20% Type D: Disk S: Square Element Diameter Varistor Voltage www.brightking.com 20 SERIES PACKAGE DIMENSIONS unit :mm www..com Part Code 182K 152K 112K 102K 911K 821K 781K 751K 681K 621K 561K 511K 471K 431K 391K 361K 331K 301K 271K 241K 221K 201K 181K 151K 121K 101K 820K 680K 560K 470K 390K T Max. 15.6 13.2 10.1 9.5 9.0 8.5 8.4 8.2 7.8 7.5 7.0 6.8 6.6 6.4 6.2 6.2 5.9 5.7 5.6 5.4 5.3 5.0 5.0 5.6 5.3 5.1 4.9 5.8 5.7 5.6 5.5 L Min. 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 D Max. 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 H Max. 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 d 0.05 E 0.8 0.8/1.0 7.5/10 www.brightking.com 20 SERIES ELECTRICAL RATINGS Item Varistor Voltage Maximum Allowable Voltage www..com Test Condition/Description The voltage between two terminals with the specified measuring current 1mA.DC applied is call Vb. The recommended maximum sine wave voltage (RMS) or the maximum DC voltage can be applied continuously. The maximum voltage between two terminals with the specification standard impulse current. Applied waveform: 8/20sec. Requirement Maximum Clamping Voltage To meet the specified value Rated Wattage Energy Withstanding Surge Current Varistor Voltage Temp. Coefficient The maximum average power that can be applied within the specified ambient temperature. The maximum energy within the varistor voltage change of 10% when one impulse of 10/1000sec. or 2 msec. is applied. The maximum current within the varistor voltage change of 10% with the standard impulse current (8/20sec.) applied one time. Vb at 20 - Vb at 70 1 x x 100 (% ) Vb at 20 50 The change of Vb shall be measured after the impulse listed below is applied 10,000 times continuously with the interval of ten seconds at room temperature. 5 series 180L to 680K 820K to 751K 180L to 680K 820K to 821K 180L to 680K 820K to 182K 180L to 680K 820K to 182K 180L to 680K 820K to 182K 10A ( 8/20sec.) 20A ( 8/20sec.) 25A ( 8/20sec.) 50A ( 8/20sec.) 50A ( 8/20sec.) 100A ( 8/20sec.) 75A ( 8/20sec.) 150A ( 8/20sec.) 100A ( 8/20sec.) 200A ( 8/20sec.) +0.05% / max 7 series Surge Life 10 series Vb 10% Vb 14 series 20 series www.brightking.com 20 SERIES ELECTRIACL CHARACTERISTIC Part Number 182KD20 152KD20 112KD20 102KD20 911KD20 821KD20 781KD20 751KD20 681KD20 621KD20 561KD20 511KD20 471KD20 431KD20 391KD20 361KD20 331KD20 301KD20 271KD20 241KD20 221KD20 201KD20 181KD20 151KD20 121KD20 101KD20 820KD20 680KD20 560KD20 470KD20 390KD20 330KD20 270KD20 220KD20 180KD20 www..com Maximum Allowable Voltage 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 10 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 Maximum Energy 10/1000s (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 8/20s 1 time 2 times (A) Rated Wattage (W) Varistor 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) Maximum Clamping Voltage 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 Certification 6500 4000 1.0 430(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) 2000 1000 0.2 * 680K-180L Max. Clamping Voltage testing current 25A. www.brightking.com |
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