471KD20

Metal Oxide Varistors 20D Series Features        Wide operating voltage (V1mA) range from 18V to 1800V Fast responding to transient over-voltage Large absorbing transient energy capability Low clamping ratio and no follow-on current Meets MSL level1, per J-STD-020 Operating temperature: -40℃ ~ +85℃ Storage Temperature：-40℃ ~ +125℃ Applications      Transistor, diode, IC, SCR or SCR 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 and Marking Code www.liownsemi.com 掌握芯技术Core Technology （V2） Metal Oxide Varistors 20D Series Dimensions Item D H H1 L L1 d P T Dimension (mm) 20.0~23.0 21.0~26.0 24.0~28.0 ≥20.0 ≥15.0 1.0±0.05 10.0±1.0 W Refer to the following table Model T W Model T W Model T W 180K 2.1~4.3 1.7±0.8 201K 2.5~4.7 2.2±0.8 681K 4.1~7.1 4.4±0.8 220K 2.2~4.4 1.8±0.8 221K 2.6~4.8 2.3±0.8 751K 4.4~7.5 4.5±0.8 270K 2.2~4.6 2.0±0.8 241K 2.7~4.9 2.4±0.8 781K 4.5~7.7 4.6±0.8 330K 2.3~4.8 1.9±0.8 271K 2.7~5.0 2.6±0.8 821K 4.7~7.9 4.8±0.8 390K 2.2~4.5 2.0±0.8 301K 2.8~5.0 2.7±0.8 911K 4.9~8.1 5.2±0.8 470K 2.3~4.7 2.1±0.8 331K 2.8~5.2 2.7±0.8 102K 5.5~8.6 5.2±0.8 560K 2.4~5.0 2.3±0.8 361K 3.0~5.4 2.9±0.8 112K 5.9~9.1 5.6±0.8 680K 2.5~5.3 2.6±0.8 391K 3.1~5.5 3.0±0.8 122K 6.0~9.7 6.0±0.8 820K 2.2~4.5 2.0±0.8 431K 3.3~5.7 3.2±0.8 142K 7.0~11.2 6.8±0.8 101K 2.5~4.6 2.2±0.8 471K 3.4~6.0 3.4±0.8 162K 7.5~11.8 7.6±0.8 121K 2.5~4.8 2.4±0.8 511K 3.5~6.2 3.6±0.8 182K 7.7~12.8 8.4±0.8 151K 2.3~4.5 2.0±0.8 561K 3.7~6.5 3.8±0.8 181K 2.4~4.6 2.1±0.8 621K 3.9~6.8 4.1±0.8 www.liownsemi.com 掌握芯技术Core Technology （V2） Metal Oxide Varistors 20D Series Electrical Characteristics Model Varistor Voltage Maximum Allowable Voltage Maximum Clamping Voltage Surge Current Maximum Energy (10/1000μs) Maximum Leakage Current @83% of V1mA Rated Power Typical Capacitance (Reference) V1mA (V) VAC (V) VDC (V) IP (A) VC (V) I (A) E (J) IR (μA) P (W) @1KHz (pF) 180KD20 18(15~21.6) 11 14 20 36 2000 11 50 0.2 28500 180KD20J 18(15~21.6) 11 14 20 36 3000 13 50 0.2 28500 220KD20 22(19.5~26) 14 18 20 43 2000 14 50 0.2 18500 220KD20J 22(19.5~26) 14 18 20 43 3000 16 50 0.2 18500 270KD20 27(24~31) 17 22 20 53 2000 16 50 0.2 13000 270KD20J 27(24~31) 17 22 20 53 3000 19 50 0.2 13000 330KD20 33(29.5~36.5) 20 26 20 65 2000 23 50 0.2 11500 330KD20J 33(29.5~36.5) 20 26 20 65 3000 24 50 0.2 11500 390KD20 39(35~43) 25 31 20 77 2000 26 50 0.2 8500 390KD20J 39(35~43) 25 31 20 77 3000 28 50 0.2 8500 470KD20 47(42~52) 30 38 20 93 2000 30 50 0.2 7400 470KD20J 47(42~52) 30 38 20 93 3000 34 50 0.2 7400 560KD20 56(50~62) 35 45 20 110 2000 38 50 0.2 6500 560KD20J 56(50~62) 35 45 20 110 3000 44 50 0.2 6500 680KD20 68(61~75) 40 56 20 135 2000 41 50 0.2 5800 680KD20J 68(61~75) 40 56 20 135 3000 49 50 0.2 5800 820KD20 82(74~90) 50 65 100 135 6500 45 25 1.0 4900 820KD20J 82(74~90) 50 65 100 135 10000 56 25 1.0 4900 101KD20 100(90~110) 60 85 100 165 6500 50 25 1.0 4000 101KD20J 100(90~110) 60 85 100 165 10000 70 25 1.0 4000 121KD20 120(108~132) 75 100 100 200 6500 55 25 1.0 3300 121KD20J 120(108~132) 75 100 100 200 10000 85 25 1.0 3300 151KD20 150(135~165) 95 125 100 250 6500 70 25 1.0 2700 151KD20J 150(135~165) 95 125 100 250 10000 106 25 1.0 2700 181KD20 180(162~198) 115 150 100 300 6500 85 25 1.0 2200 181KD20J 180(162~198) 115 150 100 300 10000 130 25 1.0 2200 201KD20 200(180~220) 130 170 100 340 6500 95 25 1.0 2000 201KD20J 200(180~220) 130 170 100 340 10000 140 25 1.0 2000 221KD20 220(198~242) 140 180 100 360 6500 100 25 1.0 1800 221KD20J 220(198~242) 140 180 100 360 10000 155 25 1.0 1800 241KD20 240(216~264) 150 200 100 395 6500 108 25 1.0 1650 241KD20J 240(216~264) 150 200 100 395 10000 168 25 1.0 1650 271KD20 270(243~297) 175 225 100 455 6500 127 25 1.0 1500 271KD20J 270(243~297) 175 225 100 455 10000 190 25 1.0 1500 301KD20 300(270~330) 190 250 100 500 6500 136 25 1.0 1300 301KD20J 300(270~330) 190 250 100 500 10000 210 25 1.0 1300 331KD20 330(297~363) 210 275 100 550 6500 150 25 1.0 1200 www.liownsemi.com 掌握芯技术Core Technology （V2） Metal Oxide Varistors 20D Series Electrical Characteristics Model Varistor Voltage Maximum Allowable Voltage Maximum Clamping Voltage Surge Current Maximum Energy (10/1000μs) Maximum Leakage Current @83% of V1mA Rated Power Typical Capacitance (Reference) V1mA (V) VAC (V) VDC (V) IP (A) VC (V) I (A) E (J) IR (μA) P (W) @1KHz (pF) 331KD20J 330(297~363) 210 275 100 550 10000 228 25 1.0 1200 361KD20 360(324~396) 230 300 100 595 6500 163 25 1.0 1100 361KD20J 360(324~396) 230 300 100 595 10000 255 25 1.0 1100 391KD20 390(351~429) 250 320 100 650 6500 180 25 1.0 1000 391KD20J 390(351~429) 250 320 100 650 10000 275 25 1.0 1000 431KD20 430(387~473) 275 350 100 710 6500 190 25 1.0 930 431KD20J 430(387~473) 275 350 100 710 10000 305 25 1.0 930 471KD20 470(423~517) 300 385 100 775 6500 204 25 1.0 850 471KD20J 470(423~517) 300 385 100 775 10000 350 25 1.0 850 511KD20 510(459~561) 320 415 100 845 6500 210 25 1.0 780 511KD20J 510(459~561) 320 415 100 845 10000 360 25 1.0 780 561KD20 560(504~616) 350 460 100 925 6500 215 25 1.0 710 561KD20J 560(504~616) 350 460 100 925 10000 380 25 1.0 710 621KD20 620(558~682) 385 505 100 1025 6500 224 25 1.0 650 621KD20J 620(558~682) 385 505 100 1025 10000 390 25 1.0 650 681KD20 680(612~748) 420 560 100 1120 6500 230 25 1.0 600 681KD20J 680(612~748) 420 560 100 1120 10000 400 25 1.0 600 751KD20 750(675~825) 460 615 100 1240 6500 255 25 1.0 530 751KD20J 750(675~825) 460 615 100 1240 10000 420 25 1.0 530 781KD20 780(702~858) 485 640 100 1290 6500 265 25 1.0 510 781KD20J 780(702~858) 485 640 100 1290 10000 440 25 1.0 510 821KD20 820(738~902) 510 670 100 1355 6500 282 25 1.0 500 821KD20J 820(738~902) 510 670 100 1355 10000 460 25 1.0 500 911KD20 910(819~1001) 550 745 100 1500 6500 310 25 1.0 440 911KD20J 910(819~1001) 550 745 100 1500 10000 510 25 1.0 440 102KD20 1000(900~1100) 625 825 100 1650 6500 342 25 1.0 400 102KD20J 1000(900~1100) 625 825 100 1650 10000 565 25 1.0 400 112KD20 1100(990~1210) 680 895 100 1815 6500 383 25 1.0 360 112KD20J 1100(990~1210) 680 895 100 1815 10000 620 25 1.0 360 122KD20 1200(1080~1320) 750 990 100 1980 6500 408 25 1.0 350 122KD20J 1200(1080~1320) 750 990 100 1980 10000 660 25 1.0 350 142KD20 1400(1260~1540) 880 1140 100 2310 6500 532 25 1.0 340 142KD20J 1400(1260~1540) 880 1140 100 2310 10000 784 25 1.0 340 162KD20 1600(1440~1760) 1000 1280 100 2640 6500 606 25 1.0 330 162KD20J 1600(1440~1760) 1000 1280 100 2640 10000 896 25 1.0 330 182KD20 1800(1620~1980) 1100 1465 100 2970 6500 625 25 1.0 320 182KD20J 1800(1620~1980) 1100 1465 100 2970 10000 990 25 1.0 320 www.liownsemi.com 掌握芯技术Core Technology （V2） Metal Oxide Varistors 20D Series Electrical Ratings Items Varistor Voltage Test Condition/Description Requirement The voltage between two terminals with the specified measuring current 1mA.DC applied is called Vb. Maximum Allowable Voltage The recommended maximum sine wave voltage (RMS) or the Maximum DC voltage can be applied continuously. Maximum Clamping Voltage The maximum voltage between two terminals with the specification standard impulse current. Applied waveform: 8/20μs Surge Current The maximum current within the varistor voltage change of ±10% with the standard impulse current (8/20μs) applied one time. Energy The maximum energy within the varistor voltage change of ±10% when one impulse of 10/1000μs is applied. Leakage Current The current through the varistor when 0.83V1mA is applied to both end. Rated Power The maximum average power that can be applied within the specified ambient temperature. Varistor Voltage Temp. Coefficient Surge Life ≤0.05%/℃ The change of V1mA shall be measured after the impulse listed below which is applied 10,000 times continuously with the interval of ten seconds at room temperature. 20D series www.liownsemi.com To meet the Specified value 180K to 680K 100A (8/20μs) 820K to 182K 200A (8/20μs) 掌握芯技术Core Technology |ΔV1mA/V1mA |≤10% （V2） Metal Oxide Varistors 20D Series Mechanical Characteristics and Reliability Items Test conditions / Methods Specifications Gradually applying the force specified and keeping the unit fixed for 10±1 sec. Tensile Strength of Terminals Terminal diameter (mm) Force (kg) 0.5