1812L190SLPR电路保护的PTC可复位保险丝规格书PDF中文资料

1812L190SLPR属于电路保护的PTC可复位保险丝。由力特公司制造生产的1812L190SLPRPTC 可复位保险丝PTC 可复位保险丝可在电流超过一定限值时用于阻断电流（过流保护）。保险丝的工作原理是：其温度会因电流增大而升高，导致电阻变大。跳闸电流为 14 mA 至 50 A，跳闸时间为 8 ms 至 90 s。PTC = 正温度系数。

描述 Description

Littelfuse LoRho™ Surface Mount PPTC (Polymer Positive Temperature Coefficient) devices provide overcurrent protection for applications where ultra low internal resistance, ultra low voltage drop and automatic resettable protection are desired. This new series allows a higher hold current device in a smaller factor and lower profile as compared to a standard PPTC. It offers ultra low internal resistance while maintaining the high level electrical characteristics and performances of standard PPTC products. All devices are UL and TUV recognized and have maximum fault current of 50A. They are available in 0402 to 2920 sizes while the hold current ranges from 100mA to 7A. Littelfuse 0402 size LoRho™ SMD PPTC is the smallest size surface mounted PPTC device available in the market.

特性 Features

● Ultra low internal resistance

● Very thin profile

● Miniature size saves board space

● Allows a higher hold current dvice in a smaller factor and

lower profile as compared to a standard PPTC

● Fast response to fault currents

● 0402 size available - the smallest PPTC in the marketCompatible

with high temperature solders

● Broadest range of Hold Current ratings (100mA to 7A)

● RoHS compliant, Lead Free and Halogen Free

● UL and TUV recognized

● 0603L150SL ideal for USB 3.0

Applications

● USB peripherals including new USB 3.0 / 2.0 ports

● Li-ion / Li-Polymer battery packs

● Smart phones

● Tablet and Notebook PCs

● E-readers

● LCD / LED HDTV

● Computer periperals

● Digital cameras and video cameras

● Hard disk drives

● Game consoles