Dongguan Linkun Electronic Technology Co., Ltd. |
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Non-Polarity MOV-10D Metal Oxide Varistor For Voltage Spike
Protection
How to use a metal oxide varistor in a circuit?
When the voltage is within the rated limits, the resistance of the
MOV will be very high, so all the current flows through the circuit
and no current flows through the MOV.
But when there is a voltage spike on the mains it will appear
directly on the MOV since it is in parallel with the AC mains. This
high voltage will reduce the resistance value of the MOV to a very
low value, making it look like a short circuit.
This forces a high current through the MOV, which will cause the
fuse to flow and disconnect the circuit from the supply voltage.
During voltage spikes, the fault's high voltage will quickly return
to normal values, in those cases the current will not last long
enough to blow the fuse and the circuit returns to normal operation
when the voltage becomes normal. However, every time a spike is
detected, the MOV breaks the circuit by shorting out, damaging
itself each time with the high current. So if you find MOVs damaged
in any power circuit, it's probably because the circuit experienced
many voltage spikes.
Model Number | 14D 20D 181K 390K 431K 470K 471K 511K 561K 680K 681K 821K 102K |
Package | Varistors |
D/C | Newest |
Condition | New & Original |
Lead time | Within 1 day |
Unit Price | Contact us for latest price |
More details | Please contact us |
Applications:
Varistors may be used in many applications, including:
• Computers
• Timers
• Amplifiers
• Oscilloscopes
• Medical analysis equipment
• Street lighting
• Tuners
Competitive Advantage:
Model | Maximum continuous working voltage | Varistor voltage | maximum limit Voltage | flow capacity(8/20u s) | maximum energy (J) | rated power | capacitance | ||||
AC(V) | DC(V) | V0.1mA | Vp(V) | lp(A) | 1次(A) | 2次(A) | 10/ 1000us | 2ms | (W) | 1KH Z (pF) | |
MYG-32D391K | 250 | 320 | 390(351-429) | 650 | 200 | 25000 | 20000 | 330 | 3200 | ||
MYG-32D431K | 275 | 350 | 430(387-473) | 710 | 200 | 25000 | 20000 | 360 | 3100 | ||
MYG-32D471K | 300 | 385 | 470(423-517) | 775 | 200 | 25000 | 20000 | 380 | 2800 | ||
MYG-32D511K | 320 | 415 | 510(459-561) | 845 | 200 | 25000 | 20000 | 430 | 2700 | ||
MYG-32D621K | 385 | 505 | 620(558-682) | 1025 | 200 | 25000 | 20000 | 470 | 2400 | ||
MYG-32D681K | 420 | 560 | 680(612-748) | 1120 | 200 | 25000 | 20000 | 495 | 2200 | ||
MYG-32D751K | 460 | 615 | 750(657-825) | 1240 | 200 | 25000 | 20000 | 520 | 2000 | ||
MYG-32D781K | 485 | 640 | 780(702-858) | 1290 | 200 | 25000 | 20000 | 550 | 1900 | ||
MYG-32D821K | 510 | 670 | 820(738-902) | 1355 | 200 | 25000 | 20000 | 580 | 1800 | ||
MYG-32D911K | 550 | 745 | 910(819-1001) | 1500 | 200 | 25000 | 20000 | 620 | 1300 | ||
MYG-32D951K | 575 | 765 | 950(855-1045) | 1570 | 200 | 25000 | 20000 | 650 | 1200 | ||
MYG-32D102K | 625 | 825 | 1000(900-1100) | 1650 | 200 | 25000 | 20000 | 685 | 1100 | ||
MYG-32D112K | 680 | 895 | 1100(990-1210) | 1815 | 200 | 25000 | 20000 | 750 | 1000 | ||
MYG-40D210K | 130 | 170 | 200(185-225) | 395 | 250 | 40000 | 25000 | 310 | 8400 | ||
MYG-40D241K | 150 | 200 | 240(216-264) | 455 | 250 | 40000 | 25000 | 360 | 8000 | ||
MYG-40D271K | 175 | 225 | 270(243-297) | 550 | 250 | 40000 | 25000 | 390 | 7600 | ||
MYG-40D331K | 210 | 275 | 330(297-363) | 595 | 250 | 40000 | 25000 | 460 | 6700 | ||
MYG-40D361K | 230 | 300 | 360(324-396) | 650 | 250 | 40000 | 25000 | 475 | 6200 | ||
MYG-40D391K | 250 | 320 | 390(351-429) | 710 | 250 | 40000 | 25000 | 490 | 5100 | ||
MYG-40D431K | 275 | 350 | 430(387-473) | 775 | 250 | 40000 | 25000 | 550 | 4900 | ||
MYG-40D471K | 300 | 385 | 470(423-517) | 845 | 250 | 40000 | 25000 | 600 | 4300 | ||
MYG-40D511K | 320 | 415 | 510(459-561) | 1025 | 250 | 40000 | 25000 | 640 | 4200 | ||
MYG-40D621K | 385 | 505 | 620(558-682) | 1120 | 250 | 40000 | 25000 | 720 | 3800 | ||
MYG-40D681K | 420 | 560 | 680(612-748) | 1240 | 250 | 40000 | 25000 | 750 | 3500 | ||
MYG-40D751K | 460 | 615 | 750(675-825) | 1290 | 250 | 40000 | 25000 | 780 | 3200 | ||
MYG-40D781K | 485 | 640 | 780(702-858) | 1355 | 250 | 40000 | 25000 | 820 | 3000 | ||
MYG-40D821K | 510 | 670 | 820(738-902) | 1500 | 250 | 40000 | 25000 | 900 | 2900 |
Production Process / Quality Control
Application
1. Varistor voltage: refers to the voltage value across the
varistor at a specified temperature and DC (generally 1mA or
0.1mA). Recorded as V1mA or V0.1mAo
2. Maximum continuous voltage: refers to the maximum effective
value of sinusoidal AC voltage or the maximum DC voltage value that
can be continuously applied to both ends of the varistor for a long
time under the specified ambient temperature
3. Limiting voltage: refers to the maximum peak voltage at both
ends of the varistor when a specified surge current (8,20μs) passes
through it.
4. Rated power: refers to the maximum average impact power that can
be applied to the varistor under the specified ambient temperature.
5. Maximum energy: the maximum impact energy that can be applied to
the varistor under the condition that the varistor voltage does not
change more than ±10% and the impulse current waveform is 10,
1000μs or 2ms.
6. Current capacity (maximum inrush current)