高潮无遮挡毛片高清_国产草莓视频在线观看免费_美女扒开腿做爽爽视频_亚洲αv无码中文_日韩一区二区三区在线观看网址_丁香婷婷中文字幕亚洲精品_成人免费一级_美女黄网站人色视频免费国产_热久久大综合吧_日本天天日噜噜噜

hot key wordsCeramic capacitors、Varistor、Film capacitors
Advanced Search:

Contact Us

Contact Us

Contact Person:
Mr.Tan:13712551659
Mr.Xie:13827288395
Mr.Zou:13713246532
Mr.Liu:13580807193

Phone:0769-88878072/81835816

Fax:0769-81835815/21666190

Website:hbyoubipme.cn

Add:Dongguan City, Guangdong Province, the town of the town under the third village industrial zone 1

Technical Support

Circuit design need to understand the parameters

Source: Time:2017-05-08 16:09:07 views:

Varistor is often connected in parallel in the circuit, when the resistance voltage changes at both ends of the resistor short-circuit current fuse fuse to protect the entire circuit. The role of varistor power supply overvoltage protection and regulation, today Xiaobian to share the work of the use of varistors in some of the experience and methods ...
Varistor is often connected in parallel in the circuit, when the resistance voltage changes at both ends of the resistor short-circuit current fuse fuse to protect the entire circuit. The role of varistor power supply overvoltage protection and regulation, today Xiaobian to share the work of the use of varistors in some of the experience and methods.

1, the voltage-sensitive voltage UN (U1mA): usually in the varistor through the 1mA DC current when the voltage is to indicate whether it is conductive, this voltage is called the varistor UN. The varistor voltage is also commonly used as the symbol U1mA. The error range of the varistor is typically ± 10%. In the test and the actual use, usually the voltage drop from the normal value of 10% as a varistor failure criteria.
2, the maximum continuous operating voltage UC: refers to the varistor can withstand long-term maximum AC voltage (RMS) Uac or maximum DC voltage Udc. General Uac ≈ 0.64U1mA, Udc ≈ 0.83U1mA.
3, the maximum clamping voltage (limit voltage) VC: the maximum clamping voltage value refers to the varistor applied to the specified 8 / 20μs wave current 9 (A) when the varistor voltage.
4, leakage current Il: to the varistor applied when the maximum DC voltage Udc current flow. When measuring leakage current, usually to the varistor plus Udc = 0.83U1mA voltage (sometimes with 0.75U1mA). Generally require static leakage current Il ≤ 20μA (also required ≤ 10μA). In actual use, the more concerned is not the magnitude of the static leakage current value itself, but its stability, that is, the rate of change after the impact test or under high temperature conditions. After the impact test or under high temperature conditions, the rate of change does not exceed one fold, that is considered stable.
keys: 
Home   |  About Us   |  Product   |  Plant   |  ISO   |  News   |  Recruitment   | 
  • Message
  • Title:
  • Tel:
  • Content:

Contact:

Mr.Tan:13712551659
Mr.Xie:13827288395
Mr.Zou:13713246532
Mr.Liu:13580807193

Tel:0769-88878072/81835816 

Fax:0769-81835815/21666190 

E-mail:3001880762@qq.com 

Add:Guangdong Province, Dongguan City, high-Po Town, the third floor of the third village industrial zone on the fourth floor.

備案號:粵ICP備19111532號    Copyright© 東莞市勤宏電子科技有限公司    Allrights Reserved