The 20D varistor plug-in series produced by Ruilongyuan Electronics is a semiconductor voltage-limiting surge device made of zinc monoxide as a raw material at high temperature. It is widely used for its excellent nonlinear characteristics and strong surge absorption capacity. Overvoltage protection in electronic circuits, voltage range: 18 ~ 1800V, can withstand surge energy of 2.0～20.0kA.
| Type Number | VaristorVoltage | Max. AllowableVoltage | Max. Energy(10/1000μs) |
Max. ClampingVoltage (8/20μs) |
Withstanding Surge Current |
||
|---|---|---|---|---|---|---|---|
| V1mA(V) | VAC(V) | VDC(V) | (J) | IP(A) | VC(V) | I(A) | |
| 20D180K | 16~20 | 11 | 14 | 5.4 | 25 | 38 | 2000 |
| 20D220K | 20~24 | 14 | 18 | 6.6 | 25 | 43 | 2000 |
| 20D270K | 24.3~31.1 | 17 | 22 | 8.1 | 25 | 53 | 2000 |
| 20D330K | 29.7~37.9 | 20 | 26 | 9.9 | 25 | 65 | 2000 |
| 20D390K | 35.2~44.8 | 25 | 31 | 11.7 | 25 | 77 | 2000 |
| 20D470K | 43~53 | 30 | 38 | 14.1 | 25 | 93 | 2000 |
| 20D560K | 51~63 | 35 | 45 | 16.8 | 25 | 110 | 2000 |
| 20D680K | 62~76 | 40 | 56 | 20.4 | 25 | 135 | 2000 |
| 20D820K | 74~90 | 50 | 65 | 24.6 | 100 | 135 | 6500 |
| 20D820KJ | 74~90 | 50 | 65 | 30.8 | 100 | 135 | 10000 |
| 20D101K | 90~110 | 60 | 85 | 30.0 | 100 | 165 | 6500 |
| 20D101KJ | 90~110 | 60 | 85 | 37.5 | 100 | 165 | 10000 |
| 20D121K | 108~132 | 75 | 100 | 36.0 | 100 | 200 | 6500 |
| 20D121KJ | 108~132 | 75 | 100 | 45.0 | 100 | 200 | 10000 |
| 20D151K | 135~165 | 95 | 125 | 45.0 | 100 | 250 | 6500 |
| 20D151KJ | 135~165 | 95 | 125 | 56.3 | 100 | 250 | 10000 |
| 20D181K | 162~198 | 115 | 150 | 54.0 | 100 | 300 | 6500 |
| 20D181KJ | 162~198 | 115 | 150 | 67.5 | 100 | 300 | 10000 |
| 20D201K | 185~225 | 130 | 170 | 60.0 | 100 | 340 | 6500 |
| 20D201KJ | 185~225 | 130 | 170 | 75.0 | 100 | 340 | 10000 |
| 20D221K | 198~242 | 140 | 180 | 66.0 | 100 | 360 | 6500 |
| 20D221KJ | 198~242 | 140 | 180 | 82.5 | 100 | 360 | 10000 |
| 20D241K | 216~264 | 150 | 200 | 72.0 | 100 | 395 | 6500 |
| 20D241KJ | 216~264 | 150 | 200 | 90.0 | 100 | 395 | 10000 |
| 20D271K | 243~297 | 175 | 225 | 81.0 | 100 | 455 | 6500 |
| 20D271KJ | 243~297 | 175 | 225 | 101.3 | 100 | 455 | 10000 |
| 20D301K | 270~330 | 195 | 250 | 90.0 | 100 | 505 | 6500 |
| 20D301KJ | 270~330 | 195 | 250 | 112.5 | 100 | 505 | 10000 |
| 20D331K | 297~363 | 210 | 275 | 99.0 | 100 | 550 | 6500 |
| 20D331KJ | 297~363 | 210 | 275 | 123.8 | 100 | 550 | 10000 |
| 20D361K | 324~396 | 230 | 300 | 108.0 | 100 | 595 | 6500 |
| 20D361KJ | 324~396 | 230 | 300 | 135.0 | 100 | 595 | 10000 |
| 20D391K | 351~429 | 250 | 320 | 117.0 | 100 | 650 | 6500 |
| 20D391KJ | 351~429 | 250 | 320 | 146.3 | 100 | 650 | 10000 |
| 20D431K | 387~473 | 275 | 350 | 129.0 | 100 | 710 | 6500 |
| 20D431KJ | 387~473 | 275 | 350 | 161.3 | 100 | 710 | 10000 |
| 20D471K | 423~517 | 300 | 385 | 141.0 | 100 | 775 | 6500 |
| 20D471KJ | 423~517 | 300 | 385 | 176.3 | 100 | 775 | 10000 |
| 20D511K | 459~561 | 320 | 418 | 153.0 | 100 | 842 | 6500 |
| 20D511KJ | 459~561 | 320 | 418 | 191.3 | 100 | 842 | 10000 |
| 20D561K | 504~616 | 350 | 460 | 168.0 | 100 | 920 | 6500 |
| 20D561KJ | 504~616 | 350 | 460 | 210.0 | 100 | 920 | 10000 |
| 20D621K | 558~682 | 385 | 505 | 186.0 | 100 | 1025 | 6500 |
| 20D621KJ | 558~682 | 385 | 505 | 232.5 | 100 | 1025 | 10000 |
| 20D681K | 612~748 | 420 | 560 | 186.0 | 100 | 1120 | 6500 |
| 20D681KJ | 612~748 | 420 | 560 | 232.5 | 100 | 1120 | 10000 |
| 20D751K | 675~825 | 460 | 615 | 186.0 | 100 | 1240 | 6500 |
| 20D751KJ | 675~825 | 460 | 615 | 232.5 | 100 | 1240 | 10000 |
| 20D781K | 702~858 | 485 | 640 | 187.2 | 100 | 1290 | 6500 |
| 20D781KJ | 702~858 | 485 | 640 | 234.0 | 100 | 1290 | 10000 |
| 20D821K | 738~902 | 510 | 670 | 196.8 | 100 | 1355 | 6500 |
| 20D821KJ | 738~902 | 510 | 670 | 246.0 | 100 | 1355 | 10000 |
| 20D911K | 819~1001 | 550 | 745 | 218.4 | 100 | 1500 | 6500 |
| 20D911KJ | 819~1001 | 550 | 745 | 273.0 | 100 | 1500 | 10000 |
| 20D951K | 855~1045 | 580 | 780 | 228.0 | 100 | 1570 | 6500 |
| 20D951KJ | 855~1045 | 580 | 780 | 285.0 | 100 | 1570 | 10000 |
| 20D102K | 900~1100 | 625 | 825 | 240.0 | 100 | 1650 | 6500 |
| 20D102KJ | 900~1100 | 625 | 825 | 300.0 | 100 | 1650 | 10000 |
| 20D112K | 990~1210 | 680 | 895 | 264.0 | 100 | 1815 | 6500 |
| 20D112KJ | 990~1210 | 680 | 895 | 330.0 | 100 | 1815 | 10000 |
| 20D122K | 1080~1320 | 740 | 975 | 288.0 | 100 | 2010 | 6500 |
| 20D122KJ | 1080~1320 | 740 | 975 | 360.0 | 100 | 2010 | 10000 |
| 20D142K | 1260~1540 | 870 | 1150 | 262.0 | 100 | 2310 | 6500 |
| 20D142KJ | 1260~1540 | 870 | 1150 | 413.5 | 100 | 2310 | 10000 |
| 20D152K | 1260~1540 | 900 | 1220 | 359.0 | 100 | 2475 | 6500 |
| 20D152KJ | 1260~1540 | 900 | 1220 | 449.0 | 100 | 2475 | 10000 |
| 20D182K | 1620~1980 | 1000 | 1465 | 432.0 | 100 | 2970 | 6500 |
| 20D182KJ | 1620~1980 | 1000 | 1465 | 540.0 | 100 | 2970 | 10000 |
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