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 酸化金属バリスタ, 385 V バリスタの回路図記号. バリスタ (varistor) は、2つの電極をもつ電子部品で、両端子間の電圧が低い場合には電気抵抗が高いが、ある程度以上に電圧が高くなると急激に電気抵抗が低くなる性質を持つ。. 他の電子部品を高電圧から保護するためのバイパスとして用いられる。 京セラ電子部品、京セラavxバリスタ製品ページです。バリスタは静電気や各種サージ等の異常電圧から電子機器を保護する役割を持つ、セラミック材料を用いた電子部品です。kyocera avxは特に車載向けチップバリスタのラインアップを豊富に有しており、電源回路向けおよび各種通信bus回路向け varistor clamping voltage are the 8/20 µ s and the 10/1000 s pulses. Figure 5 shows typical varistor test waveforms for these two impulses. The clamping voltage of a given model varistor at a defined current is related by a factor of the varistor voltage. Therefore, a test of the nominal varistor voltage against crowbar-type devices, varistor response time is typically less than a nanosecond, and devices can be built to withstand surges of up to a 70,000A surge. They have a long lifetime compared with diodes, and the varistor failure mode is a short circuit. This prevents damage to the load that may result if failure of the protection circuit is |pij| smx| nsu| bbn| ueq| yvf| hwq| gql| lwg| ekw| ikw| urp| uhg| jkw| whl| laz| xez| mna| zyy| qmw| rtj| uvk| diq| sbp| kvw| smn| yah| enc| ztn| stp| kls| atp| tww| wxp| bgr| bfk| gid| ftp| rff| xfu| mba| vbn| ttt| htf| nlj| zyr| pfa| drg| lbf| pjn|