source:Industry News Popular:adapter release time:2022-05-09 10:53:47 Article author:yu
The main features of the varistor are the wide operating voltage range (6~3000V, divided into several grades), fast response to overvoltage pulses (nanosecond level), strong impulse current resistance (100~2000A), and small leakage current ( Microampere level), small resistance temperature coefficient, high performance and low price, small size, it is an ideal protection component, which can constitute an overvoltage protection circuit, a noise elimination circuit, a spark elimination circuit, and an absorption circuit. When the overvoltage pulse is superimposed on the power supply network, after connecting the varistor, the overvoltage peak waveform is flattened and limited to a certain range. When the load circuit with inductive and capacitive load is turned on or off, there will be switching spikes in the DC waveform, and the varistor can absorb this back electric potential in the circuit, thereby effectively protecting the switching circuit from damage.
The commonly used varistors include silicon carbide varistors and zinc oxide varistors. Among them, zinc oxide varistors are more widely used. It uses zinc oxide as the main raw material and adds a variety of trace metal oxides. A new type of ideal overvoltage protection device assembled by sintering, its conductivity value changes nonlinearly with the change of the applied voltage, it is called a varistor or a surge absorber.
Read recommendations:
72-200W Switching Power Supply
MKS-1401700H Switching Power Supply
How to choose the power adapter?
What are the differences between ordinary transformers and isolation transformers
Popular recommended products
200-500W Switching Power Supply
2020-08-2924-65W Switching Power Supply
2020-08-2912V2ASwitching Power Supply
2020-08-28MKD-571202000 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28MKA-571652420 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28EI-66 ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-28EI-57 ADAPTER LINEAR ADAPTOR Linear Power Adapter Switching Power Adapter INTERCHANGEABLE ADAPTOR Li
2020-08-28EI-48 ADAPTER LINEAR ADAPTOR Switching Power Adapter INTERCHANGEABLE ADAPTOR Linear Adapter
2020-08-28EI-41 ADAPTER AC ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Adapter
2020-08-28EI-35 ADAPTER AC ADAPTER SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-28ER42 High Frequency Transformer
2020-08-2712-36W POE POWER SUPPLY
2020-08-27Transformer,Power Transformer,Ring Power Transformer
2020-08-27Transformer，High Frequency Transformer，Frequency Transformer
2020-08-2712-24W Medical Switching Power Supply
2020-08-273-12W Medical Switching Power Supply 3W Switching Power Supply 12W Power Supply
2020-08-2745W PD Charger,45W Charger,PD Charger
2020-08-2736-90W Charger,36W Charger,90W Charger,40W Charger,50W Charger
2020-08-2724W USB Charger,24W Charger,USB Charger
2020-08-2724W 2USB Charger,24W Charger ,2USB Charger
2020-08-2710-24W Charger,24W Charger,10W Charger
2020-08-2730-500W LED Power Supply 30-500W Power Supply
2020-08-27Related Information
What are the conditions of use and maintenance methods for switching power supplies?
2022-05-21Some Frequently Asked Questions about Power Adapters
2022-05-20How to deal with the electromagnetic interference of switching power supply which is difficult in EM
2022-05-19Six situations and solutions that cause the whistling of switching power supplies.power supply price
2022-05-18Lightning Surge Test Method for Switching Power Adapters.adapter factory
2022-05-17Two common power adapter output overload protection methods.ADAPTOR price
2022-05-16Common fault maintenance skills of switching power supply
2022-05-14How should we choose the charger?
2022-05-13Power adapter expertise.CE ADAPTOR
2022-05-12How to solve the high temperature rise of switching power supply transformer?
2022-05-11The role of varistor in switching power supply
2022-05-10Structural characteristics and working principle of varistor
2022-05-09The role of varistor in switching power supply
2022-05-09What are the main components of switching power supply
2022-05-07Two ways for MOS devices to dissipate in high-power power supplies,CE ADAPTOR Processing
2022-05-06Several common insulation protection technologies for power adapters
2022-05-05What are the unique advantages of high frequency switching power adapter
2022-04-27What are the main components of switching power supply.China cnc plastic cutting
2022-04-26Troubleshooting method of switching power supply,CE ADAPTOR wholesale
2022-04-25How to use the power adapter correctly
2022-04-23What is the comparison between a charger and an adapter?
2022-04-23The optimal solution of drone power management solution!
2022-04-22Several common insulation protection technologies for power adapters
2022-04-21What are the unique advantages of high frequency switching power adapter
2022-04-20General Mechanism Analysis of Switching Power Adapter.ac power adapter wholesaler
2022-04-19Suppression method of low frequency ripple of switching power supply
2022-04-16Why is the power adapter making noise?
2022-04-15When the power adapter is in normal use, what is the normal temperature?
2022-04-1490% of people use the car charger incorrectly, are you using it right?CAR POWER SUPPLY sales
2022-04-13The difference between a power adapter and a voltage regulator
2022-04-12Popular recommended products
18-25W Switching Power Supply
2020-08-283-8W Charger,3W Charger,8W Charger,4W Charger,5W Charger,6W Charger,7W Charger
2020-08-27Inductance & Coil
2020-08-2724W 2USB Charger,24W Charger ,2USB Charger
2020-08-27500W Charger,Charger
2020-08-2812W CAR CHARGER,12W USB CAR CHARGER,CAR CHARGER,12W CHARGER
2020-08-2724-65W Switching Power Supply
2020-08-2912-36W POE POWER SUPPLY
2020-08-27EI-35 ADAPTER AC ADAPTER SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-2824-65W Medical Switching Power Supply
2020-08-2730-500W LED Power Supply 30-500W Power Supply
2020-08-27Transformer，High Frequency Transformer，Frequency Transformer
2020-08-2712V2ASwitching Power Supply
2020-08-2860W 6USB Charger,60W Charger,6USB Charger,Charger
2020-08-27200-500W Switching Power Supply
2020-08-2912-24W Medical Switching Power Supply
2020-08-27EI-48 ADAPTER LINEAR ADAPTOR Switching Power Adapter INTERCHANGEABLE ADAPTOR Linear Adapter
2020-08-28MKS-120200BS-36 Switching Power Supply
2020-08-2972-200W Switching Power Supply
2020-08-29EI-41 ADAPTER AC ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Adapter
2020-08-2824V1.5A 36W Switching Power Supply
2020-08-29Transformer,Power Transformer,Ring Power Transformer
2020-08-2719V2A 36W Switching Power Supply
2020-08-2812W POWER SUPPLY,12W CAR POWER SUPPLY,POWER SUPPLY,CAR POWER SUPPLY
2020-08-2730W PD Charger,30W Charger,PD Charger
2020-08-2736-65W Switching Power Supply
2020-08-2924V21A LED Power Supply 24V Power Supply 21A Power Supply
2020-08-27MKS-1201250HEU Switching Power Supply
2020-08-2924W USB Charger,24W Charger,USB Charger
2020-08-2712W 2USB Charger,2USB Charger,12W Charger,USB Charger
2020-08-27