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Lightning 420V Metal Oxide Varistor Surge Protection High Energy MOV 20D681K
Product Details:
| Place of Origin: | Dongguan,Guangdong,China |
| Brand Name: | AMPFORT |
| Certification: | UL,CQC,VDE |
| Model Number: | 20D681K |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1000 Pieces |
|---|---|
| Price: | To be advised |
| Packaging Details: | Bulk,250pcs per bag |
| Delivery Time: | 7-10 Workdays |
| Payment Terms: | T/T, Western Union, MoneyGram |
| Supply Ability: | 85,000,000 Pieces Per Month |
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Detail Information |
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| Product Name: | Lightning Protection Metal Oxide Varistor 20D681K | Clamping Voltage: | 1120V |
|---|---|---|---|
| Diameter: | 20 Mm | Peak Surge Current: | 6500A |
| Tolerance: | 10% | Current Rating: | 100A |
| Unit Weight: | 3g | Termination Style: | Radial |
| Mounting Style: | PCB Mount | Voltage Rating DC: | 680 VDC |
| High Light: | Lightning metal oxide varistor surge protection,420V metal oxide varistor surge protection,20D681K high energy mov |
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Product Description
Lightning Protection Metal Oxide Varistor 20D681K 20mm 420VAC For Charging Pile
Function Of The Lightning Protection Metal Oxide Varistor 20D681K
Varistors are used as control or compensation elements in circuits either to provide optimal operating conditions or to protect against excessive transient voltages. When used as protection devices, they shunt the current created by the excessive voltage away from sensitive components when triggered.
Specifications Of 20D Series Metal Oxide Varistor
Put “J” in free Code Stands For High Surge Series
| Part Number |
Vac (V) |
Vdc (V) |
V1mA (V) |
Ip (A) |
Vac (V) |
I(A) Stand ard |
I(A) High Surge |
(J) Stand ard |
(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 |
Dimension Of The Lightning Protection Metal Oxide Varistor 20D681K(Unit:mm)
| Series | MAX. |
d ±0.05 |
F |
C ±0.4 |
||
| D | H | H0 | ||||
| 05D | 7.5 | 10.5 | 13 | 0.6 | 5±0.08 | 1.2 |
| 07D | 9 | 12 | 13.5 | 0.6 | 5±0.8 | |
| 10D | 12.5 | 16.5 | 17.5 | 0.8 | 7.5±0.8 | 1.4 |
| 14D | 16.5 | 20 | 21 | 0.8/1.0 | 7.5±0.8 | |
| 20D | 23 | 26.5 | 28 | 0.8/1.0 | 7.5±0.8 / 10±1.0 | 1.4/1.6 |
| 25D | 28 | 32 | 34 | 1.0 | 10±1.0 / 12.7±1.0 | 1.6 |
Max Thickness Of The Lightning Protection Metal Oxide Varistor 20D681K
| Part code | 05D | 07D | 10D | 14D | 20D | 25D | Part code | 05D | 07D | 10D | 14D | 20D | 25D |
| 180L | 4.5 | 4.5 | 4.6 | 4.6 | 4.8 | 4.8 | 331K | 5.1 | 5.1 | 5.8 | 5.8 | 6.0 | 6.1 |
| 220K | 4.6 | 4.6 | 4.7 | 4.7 | 4.9 | 4.9 | 361K | 5.2 | 5.2 | 6.0 | 6.0 | 6.2 | 6.4 |
| 270K | 4.7 | 4.7 | 4.8 | 4.8 | 5.0 | 5.0 | 391K | 5.4 | 5.4 | 6.2 | 6.2 | 6.4 | 6.6 |
| 330K | 4.9 | 4.9 | 5.0 | 5.0 | 5.2 | 5.2 | 431K | 5.7 | 5.7 | 6.5 | 6.5 | 6.7 | 6.9 |
| 390K | 4.8 | 4.8 | 5.3 | 5.3 | 5.5 | 5.5 | 471K | 6.0 | 6.0 | 6.7 | 6.7 | 6.9 | 7.1 |
| 470K | 4.9 | 4.9 | 5.4 | 5.4 | 5.6 | 5.6 | 511K | 6.2 | 6.2 | 6.8 | 6.8 | 7.0 | 7.2 |
| 560K | 5.0 | 5.0 | 5.6 | 5.6 | 5.8 | 5.8 | 561K | 6.5 | 6.5 | 7.0 | 7.0 | 7.2 | 7.4 |
| 680K | 5.2 | 5.2 | 5.6 | 5.6 | 5.8 | 5.8 | 621K | - | 7.1 | 7.3 | 7.3 | 7.5 | 7.7 |
| 820K | 4.1 | 4.1 | 4.7 | 4.7 | 4.9 | 4.9 | 681K | - | 7.3 | 7.6 | 7.6 | 7.8 | 8.0 |
| 101K | 4.3 | 4.3 | 4.9 | 4.9 | 5.1 | 5.1 | 751K | - | - | 8.0 | 8.0 | 8.2 | 8.4 |
| 121K | 4.5 | 4.5 | 5.1 | 5.1 | 5.3 | 5.3 | 781K | - | - | 8.1 | 8.1 | 8.3 | 8.5 |
| 151K | 4.8 | 4.8 | 5.4 | 5.4 | 5.6 | 5.6 | 821K | - | - | 8.3 | 8.3 | 8.5 | 8.7 |
| 181K | 4.3 | 4.3 | 4.8 | 4.8 | 5.0 | 5.2 | 911K | - | - | 8.8 | 8.8 | 9.0 | 9.2 |
| 201K | 4.4 | 4.4 | 5.0 | 5.0 | 5.2 | 5.4 | 102K | - | - | 9.3 | 9.3 | 9.5 | 9.7 |
| 221K | 4.5 | 4.5 | 5.1 | 5.1 | 5.3 | 5.5 | 112K | - | - | 9.9 | 9.9 | 10.1 | 10.3 |
| 241K | 4.6 | 4.6 | 5.2 | 5.2 | 5.4 | 5.6 | 122K | - | - | - | 10.4 | 10.6 | 10.8 |
| 271K | 4.9 | 4.9 | 5.4 | 5.4 | 5.6 | 5.8 | 182K | - | - | - | - | 13.2 | - |
| 301K | 5.0 | 5.0 | 5.5 | 5.5 | 5.7 | 5.9 |
Application Example Of The Lightning Protection Metal Oxide Varistor 20D681K
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Model Number Φ5mm
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Model Number Φ5mm
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Model Number Φ5mm
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Model Number Φ5mm
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Model Number Φ5mm
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Recommended Applications |
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05D180L 05D220K 05D270K 05D330K 05D390K 05D470K 05D560K 05D680K |
07D180L 07D220K 07D270K 07D330K 07D390K 07D470K 07D560K 07D680K |
10D180L 10D220K 10D270K 10D330K 10D390K 10D470K 10D560K 10D680K |
14D180L 14D220K 14D270K 14D330K 14D390K 14D470K 14D560K 14D680K |
20D180L 20D220K 20D270K 20D330K 20D390K 20D470K 20D560K 20D680K |
Protection of various kinds of semiconductors Protection of automobile equipment Absorption of switching surge from various kinds of relays and electro-magnetic valves (DC below 48V) Protection of electronic equipment from electrostatic discharge Cellular phone |
|
05D820K 05D101K 05D121K 05D151K |
07D820K 07D101K 07D121K 07D151K |
10D820K 10D101K 10D121K 10D151K |
14D820K 14D101K 14D121K 14D151K |
20D820K 20D101K 20D121K 20D151K |
Telephone.Communication line (DC 48V) |
|
05D181K 05D201K 05D221K |
07D181K 07D201K 07D221K |
10D181K 10D201K 10D221K |
14D181K 14D201K 14D221K |
20D181K 20D201K 20D221K |
AC 100V Line-Line Applications(Japan) |
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05D241K 05D271K 05D301K |
07D241K 07D271K 07D301K |
10D241K 10D271K 10D301K |
14D241K 14D271K 14D301K |
20D241K 20D271K 20D301K |
AC 100V to 120V,Line-Line Applications (Japan.,U.S.,Canada) |
|
05D331K 05D361K 05D391K |
07D331K 07D361K 07D391K |
10D331K 10D361K 10D391K |
14D331K 14D361K 14D391K |
20D331K 20D361K 20D391K |
Telephone Line Application (250V insulation Resistance Test Applicable) |
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05D431K 05D471K |
07D431K 07D471K |
10D431K 10D471K |
14D431K 14D471K |
20D431K 20D471K |
AC200/220V Line-Line Applications AC100V to 220V.Line-Ground Applications |
| 05D561K |
07D561K 07D621K 07D681K |
10D561K 10D621K 10D681K |
14D561K 14D621K 14D681K |
20D561K 20D621K 20D681K |
AC 240V Line-Line Applications (U.K.,Australia,Middle East Countries) |
|
10D751K 10D781K 10D821K |
14D751K 10D781K 10D821K |
20D751K 20D781K 20D821K |
AC 380V,Line-Line and Line-Ground Applications |
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| 10D911K | 14D911K | 20D911K |
AC 415V,Line-Line and Line-Ground Applications |
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10D102K 10D112K |
14D102K 14D112K |
20D102K 20D112K |
AC 480V,Line-Line and Line-Ground Applications |
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| 14D182K | 20D182K |
Line-Ground Applications (For AC 1200V Withstanding Test) |
Package Of The Lightning Protection Metal Oxide Varistor 20D681K
| Model | Specifications | Quantity per carton | Gross weight |
| (K) | (Kg) | ||
| 5D | 180K-821K | 24 | 8-11 |
| 7D | 180K-471K | 18 | 8-12 |
| 511K-821K | 12 | 10-11 | |
| 10D | 180K-561K | 9 | 8-15 |
| 681K-821K | 6 | 11-16 | |
| 14D | 180K-681K | 6 | 10-18 |
| 751K-122K | 3 | 10-13 | |
| 20D | 180K-471K | 3 | 8-14 |
| 561K-122K | 1.5 | 8-11 | |
| Remarks | Special requirements can be packed at the request of clients | ||
| -- 05D Series Metal Oxide Varistor |
| -- 07D Series Metal Oxide Varistor |
| -- 10D Series Metal Oxide Varistor |
| -- 14D Series Metal Oxide Varistor |
| -- 20D Series Metal Oxide Varistor |
| -- 25D Series Metal Oxide Varistor |
| -- 32D Series Metal Oxide Varistor |
| -- 34S Series Metal Oxide Varistor |
| -- 40D Series Metal Oxide Varistor |
| -- 53D Series Metal Oxide Varistor |
| Pls contact our sales to get furthermore info....................... |
Selections of Varistors
When selecting a varistor, the specific conditions of the circuit must be considered. Generally, the following principles should be followed.
1 Selection of Varistor Voltage V1mA
According to the power supply voltage, the power supply voltage continuously applied across the varistor cannot exceed the “maximum continuous operating voltage” value listed in the specification. That is, the maximum DC working voltage of the varistor must be greater than the DC working voltage VIN of the power line (signal line) which is VDC ≥ VIN; for the varistor selection of the 220V AC power supply, it is necessary to give full consideration to the fluctuation range of the working voltage of the power grid, and to select the varistor voltage value of the varistor, there should be enough allowance for the selection of the varistor. The general fluctuation of the domestic power grid is 25%. A varistor with the voltage of 470V to 620V should be selected. Selecting a varistor with a higher voltage can reduce the failure rate and prolong the service life, but the residual voltage is slightly increased.
2 Selection of Flow Rate
The nominal discharge current of the varistor should be greater than the surge current required to withstand or the maximum surge current that may occur during operation of the equipment. The nominal discharge current should be calculated according to the value of more than 10 shocks in the surge life curve of varistor, which is about 30% (0.3IP) of the maximum impulse flow rate.
3 Selection of Clamping Voltage
The clamp voltage of the varistor must be smaller than the maximum voltage (safe voltage) that the protected component or device can withstand.
4 Selection of CP
For high frequency transmission signals, the Cp should be smaller, and vice versa.
5 Resistance Match
The relationship between the internal resistance R(R≥2Ω) of the protected component (circuit) and the transient internal resistance Rv of varistor: R≥5R. For protected components with small internal resistance, use large-capacitance varistor as much as possible without affecting the signal transmission rate.