力特符合UL贴片保险丝,044301.5DR

Littelfuse 443 系列 - NANO2®延时超小型表面贴装保险丝

型号：044301.5DR

电流：1.5A

电压：250V

功能与特色：

额定电压250伏
额定电流:0.50A - 5.0A
延时型
符合RoHS标准
与无铅合金焊料完全兼容，无铅组件的温度曲线更高

熔断器是根据电流超过规定值一段时间后，以其自身产生的热量使熔体熔化，从而使电路断开；

运用这种原理制成的一种电流保护器。熔断器广泛应用于高低压配电系统和控制系统以及用电设

备中，作为短路和过电流的保护器，是应用最普遍的保护器件之一。

保险丝(fuse)也被称为电流保险丝，IEC127标准将它定义为"熔断体（fuse-link)"。其主要是起过载保护作用。电路中正确安置保险丝，保险丝就会在电流异常升高到一定的高度和热度的时候，自身熔断切断电流，保护了电路安全运行。 

Fuse is also known as current fuse, and IEC127 standard defines it as "fuse-link". It mainly plays the 

role of overload protection. When the fuse is properly placed in the circuit, the fuse will cut off the 

current when the current is raised to a certain height and heat, and the safety of the circuit will be 

protected. More than 100 years ago, the fuse invented by Edison was used to protect the expensive 

incandescent lamps. With the development of the times, the fuse protected the power equipment 

from the damage caused by the overheating of the electric current, and avoided the serious damage 

caused by the internal failure of the electronic equipment.