PRODUCT
High Voltage HEL ZOV Blue Radial Leaded 20mm Disc VDR Varistor 20D471K 470V 10% 4.5KA High Surge Type 350J Available
Product Attributes :
Specifications
Technology: Metal Oxide
Varistor Voltage (V): 470
Maximum AC Voltage Rating (V): 300
Maximum DC Voltage Rating (V): 385
Clamping Voltage (V): 775
Tolerance Voltage: 10%
Clamping Current (A): 100
Maximum Surge Current (A): 6500
Diameter: 20mm
Pitch: 10mm
Highlight:
zinc oxide varistor
,varistor surge protection
Product Description
Product Description
High Voltage HEL ZOV Blue Radial Leaded 20mm Disc VDR Varistor 20D471K 470V 10% 4.5KA High Surge Type 350J Available
General Information
The MOV-20DxxxK Series of 20 mm radial leaded varistor devices protects against overvoltage transients such as lightning, power contact and power induction. The metal oxide varistors offer a choice of varistor voltages from 18 V to 1800 V and Vrms voltages from 11 V to 1100 V.
The devices have a high current handling, high energy absorption capability and fast response times to protect against transient faults up to rated limits.
Absolute Maximum Ratings (@ TA = 25 °C Unless Otherwise Noted)
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
| Operating Temperature | TOPR | -40 | 25 | +105 | ˚C |
| Storage Temperature | TSTG | -40 | 25 | +125 | ˚C |
| Rated Wattage | Pw | 1.00 | Watt | ||
| Varistor Voltage Temperature Coefficient | VTC | 0 | 0.1 | 0.05 | % / ˚C |
| Response Time | Tr | 10 | 25 | ns | |
| Varistor Voltage Tolerance | Vtol | -10 | 0 | 10 | % |
Size (mm)
|
Dmax
|
23
|
|
Hmax
|
25
|
|
Lmin
|
25
|
|
A±1
|
10
|
|
±0.02
|
1
|
Thickness (mm)
| 180K--680K | 5 | 621K--681K | 7 |
| 820K--201K | 5 | 751K--821K | 7.5 |
| 221K--331K | 5.5 | 102K--122K | 8 |
| 361K--471K | 6 | 142K--162K | 10 |
| 511K--561K | 6.5 | 182K | 12 |
Part Numbering
| Part Number |
Vac (V) |
Vdc (V) |
V1mA (V) |
Ip (A) |
Vac (V) |
I(A) Standard |
I(A) High Surge |
(J) Standard |
(J) High Surge |
Rated power(W) |
C@ 1KHz (pf) |
| 20D180K(J) | 11 | 14 | 18(15-21.6) | 20 | 36 | 2000 | 3000 | 11 | 13 | 0.2 | 28500 |
| 20D220K(J) | 14 | 18 | 22(19.5-26) | 20 | 43 | 2000 | 3000 | 14 | 16 | 0.2 | 18500 |
| 20D270K(J) | 17 | 22 | 27(24-31) | 20 | 53 | 2000 | 3000 | 16 | 19 | 0.2 | 13000 |
| 20D330K(J) | 20 | 26 | 33(29.5-36.5) | 20 | 65 | 2000 | 3000 | 23 | 24 | 0.2 | 11500 |
| 20D390K(J) | 25 | 31 | 39(35-43) | 20 | 77 | 2000 | 3000 | 26 | 28 | 0.2 | 8500 |
| 20D470K(J) | 30 | 38 | 47(42-52) | 20 | 93 | 2000 | 3000 | 30 | 34 | 0.2 | 7400 |
| 20D560K(J) | 35 | 45 | 56(50-62) | 20 | 110 | 2000 | 3000 | 41 | 41 | 0.2 | 6500 |
| 20D680K(J) | 40 | 56 | 68(61-75) | 20 | 135 | 2000 | 3000 | 46 | 49 | 0.2 | 5800 |
| 20D820K(J) | 50 | 65 | 82(74-90) | 100 | 135 | 6500 | 10000 | 38 | 56 | 1.0 | 4900 |
| 20D101K(J) | 60 | 85 | 100(90-110) | 100 | 165 | 6500 | 10000 | 45 | 70 | 1.0 | 4000 |
| 20D121K(J) | 75 | 100 | 120(108-132) | 100 | 200 | 6500 | 10000 | 55 | 85 | 1.0 | 3300 |
| 20D151K(J) | 95 | 125 | 150(135-165) | 100 | 250 | 6500 | 10000 | 70 | 106 | 1.0 | 2700 |
| 20D181K(J) | 115 | 150 | 180(162-198) | 100 | 300 | 6500 | 10000 | 85 | 130 | 1.0 | 2200 |
| 20D201K(J) | 130 | 170 | 200(180-220) | 100 | 340 | 6500 | 10000 | 95 | 140 | 1.0 | 2000 |
| 20D221K(J) | 140 | 180 | 220(198-242) | 100 | 360 | 6500 | 10000 | 100 | 155 | 1.0 | 1800 |
| 20D241K(J) | 150 | 200 | 240(216-264) | 100 | 395 | 6500 | 10000 | 108 | 168 | 1.0 | 1650 |
| 20D271K(J) | 175 | 225 | 270(243-297) | 100 | 455 | 6500 | 10000 | 127 | 190 | 1.0 | 1500 |
| 20D301K(J) | 190 | 250 | 300(270-330) | 100 | 500 | 6500 | 10000 | 136 | 210 | 1.0 | 1300 |
| 20D331K(J) | 210 | 275 | 330(297-363) | 100 | 550 | 6500 | 10000 | 150 | 228 | 1.0 | 1200 |
| 20D361K(J) | 230 | 300 | 360(324-396) | 100 | 595 | 6500 | 10000 | 163 | 255 | 1.0 | 1100 |
| 20D391K(J) | 250 | 320 | 390(351-429) | 100 | 650 | 6500 | 10000 | 180 | 275 | 1.0 | 1000 |
| 20D431K(J) | 275 | 350 | 430(387-473) | 100 | 710 | 6500 | 10000 | 190 | 305 | 1.0 | 930 |
| 20D471K(J) | 300 | 385 | 470(423-517) | 100 | 775 | 6500 | 10000 | 220 | 350 | 1.0 | 850 |
| 20D511K(J) | 320 | 415 | 510(459-561) | 100 | 845 | 6500 | 10000 | 220 | 360 | 1.0 | 780 |
| 20D561K(J) | 350 | 460 | 560(504-616) | 100 | 925 | 6500 | 10000 | 220 | 380 | 1.0 | 710 |
| 20D621K(J) | 385 | 505 | 620(558-682) | 100 | 1025 | 6500 | 10000 | 220 | 390 | 1.0 | 650 |
| 20D681K(J) | 420 | 560 | 680(612-748) | 100 | 1120 | 6500 | 10000 | 230 | 400 | 1.0 | 600 |
| 20D751K(J) | 460 | 615 | 750(675-825) | 100 | 1240 | 6500 | 10000 | 255 | 420 | 1.0 | 530 |
| 20D781K(J) | 485 | 640 | 780(702-858) | 100 | 1290 | 6500 | 10000 | 265 | 440 | 1.0 | 510 |
| 20D821K(J) | 510 | 670 | 820(738-902) | 100 | 1355 | 6500 | 10000 | 282 | 460 | 1.0 | 500 |
| 20D911K(J) | 550 | 745 | 910(819-1001) | 100 | 1500 | 6500 | 10000 | 310 | 510 | 1.0 | 440 |
| 20D102K(J) | 625 | 825 | 1000(900-1100) | 100 | 1650 | 6500 | 10000 | 342 | 565 | 1.0 | 400 |
| 20D112K(J) | 680 | 895 | 1100(990-1210) | 100 | 1815 | 6500 | 10000 | 383 | 620 | 1.0 | 360 |
| 20D122K(J) | 750 | 990 | 1200(1080-1320) | 100 | 1980 | 6500 | 10000 | 408 | 660 | 1.0 | 350 |
| 20D142K(J) | 880 | 1140 | 1400(1260-1540) | 100 | 2310 | 6500 | 10000 | 532 | 784 | 1.0 | 340 |
| 20D162K(J) | 1000 | 1280 | 1600(1440-1760) | 100 | 2640 | 6500 | 10000 | 606 | 896 | 1.0 | 330 |
| 20D182K(J) | 1100 | 1465 | 1800(1620-1980) | 100 | 2970 | 6500 | 10000 | 625 | 990 | 1.0 | 320 |
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