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Contact Person :
Wang Hong
MYG3 10K 420 Metal Oxide Varistor with Silicone Resin Coating and Bidirectional Symmetrical V/I Characteristics for Surge Protection
Product Details
| Application | Surge Protectors | Rated Voltage 0.1mA(V) | 680(612~748) |
|---|---|---|---|
| Operating Temperature Range | -40℃~+85℃ | Demension | D14*H18 |
Product Description
MYG3 10K 420 General Metal Oxide Varistors For Surge Protectors
MYG3 10K 420 General Metal Oxide Varistor Power Source Arrester
A Metal Oxide Varistor or MOV is the blue or orange-colored circular component that you can commonly spot on the AC Input side of any Power Supply Circuit. The Metal Oxide Varistor can be considered as another type of variable resistor that can vary its resistance based on the applied voltage across it. When a high current passes through a MOV, its resistance value decreases and acts as a short circuit. Hence MOVs are normally used in parallel with a fuse, to protect circuits from high voltage spikes. In this article, we will learn more about MOV Working and how to use it in your designs to protect your circuits from voltage spikes. We will also learn about the electrical properties of MOV and how to select a MOV according to your design requirements.
Features
- Silicone Resin Coating
- Low Leakage Current
- Bidirectional and Symmetrical V/ Characteristics
- Operating Temperature Range: Low Temperature: -40℃, High Temperature: +85℃/+105℃
Application
MOV (a.k.a varistors) is commonly used along with fuse in parallel to the circuit that is to be protected. The below image shows how to use MOV in the electronics circuit.
When the voltage is within the rated limits the resistance of the MOV will be very high and hence all the current flows through the circuit and no current flows through the MOV. But when a voltage spike occurs in the main voltage, it appears directly across the MOV since it is placed in parallel to AC mains. This high voltage will decrease the resistance value of the MOV to a very low value making it appear like a short.
This forces a large current to flow through the MOV which would blow the fuse and disconnect the circuit from the mains voltage. During voltage spikes the faulted high voltage will return to normal values very soon, in those cases, the duration of the current flow will not be high enough to blow the fuse and the circuit returns to normal operation when the voltage becomes normal. But, every time a spike is detected the MOV disconnects the circuit momentarily by shorting itself and damaging itself with high current each time. So if you find a MOV damaged in any power circuit it is possibly because the circuit went through many voltage spikes.
Lead Style
| Code | Configuration |
|---|---|
| A | straight long |
| B | Outside Crimped short |
| C | Vertical Crimped |
| D | straight short |
| E | Outside Crimped Long |
| F | Inside Crimped short |
Technical Specifications
| Series | Part No. | Rated Voltage V0.1mA(V) | Max. Allowable Voltage ACr.m.s(V) | Max. Allowable Voltage DC(V) | Max. Clamping Voltage Vc(V) | Max. Peak Current Ip(A) | Rated Wattage (W) | Energy 10/1000 μs (J) | Energy 2ms (J) | Max. Peak Current 1 time (A) | Max. Peak Current 2 time (A) | Capacitance 1kHz (pF) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MYG3 | 10K420+△□ | 680(612~748) | 420 | 560 | 1120 | 63.0 | 0.4 | 11.2 | 8.0 | 2500 | 1250 | 190 |
Note: +=UL 1449 File E321175(S)--Surge Protective Device, □=UL 1449 File E181155(N)--Across-The-Line Application, △=C--UL for CSA C22.2 File E321175(S) Dimension in mm
Dimensions
| Series | Part No. | Dmax | H | A | Wmax |
|---|---|---|---|---|---|
| MYG3 | 10K420 | 7.5 | - | - | - |
Company Overview
Xian Xiwuer Electronic & Info. Co., Ltd. is located in Beiguan, Xi'an city covering an area of 4000 ㎡, with employees of 2300, and about 580 technicians, among them, there are 135 engineers, 21 senior engineers. The company has total assets of 315 million RMB Yuan, fixed assets of 137 million RMB Yuan, which is a large enterprise mainly engaged in producing electronic components. The company has the largest production scale of Varistor, SPD (Surge Protective Device) and HV Ceramic Capacitor in China, with the following main products:
- Varistors & SPD
- HV Ceramic Capacitor
- Capacitive Voltage Divider
- Thermistor
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