1、 Description, Features and Applications/產品特性及應用范圍

       本產品適用于各類電子設備電路初、次級電路板的過流保護，廣泛應用于固態照明、電池充電、消費電子、電子鎮流器、LED AC/DC電源供應、網絡通信、醫療儀器及工業控制器等領域。

The 1245 series fast-acting square Surface Mount fuses are designed for high-end cloud  computing servers, telecom base station power supplies, blockchain servers, and new energy vehicle battery management systems, RoHS compliant, Halogen Free and lead(Pb) exempts of the requirements of RoHS Directive(2002/95/EC), with U.S. (UL/CSA) safety agency approvals. Provide board level primary and secondary circuit protection in a wide variety of applications. With excellent inrush current withstanding capability, excellent reliability for thermal and mechanic shock, also have a high reliability and stable solder ability, end caps are available in gold/silver plated.

Features：

?Fast acting                                               ? Small size(12.5mm*4.5mm)

?High current rating available                    ? Wide operating temperature range( -55°C to 125°C)

?Low temperature de-rating                       ? RoHS compliant, Halogen Free

?Tape and Reel for automatic placement  ? Conflict free metals

Applications：

 ? Telecom base station power supplies  ? Cloud computing ? Block chain server ? Battery Management System

2、 Standards/執行標準

In accordance with UL 248-14.

3、Electrical Characteristics for Series/電氣特性

4、Electrical Specifications by Item/電氣規格

●DC Cold Resistance are measured at <10% of rated current in ambient temperature of 25℃;

●Typical Pre-arching I2t are calculated at 10*In Current or 8ms.

Notes:

1.  Derating depicted in this curve is in addition to the standard derating of 20% for continuous operation.

Example:For continuous operation at 75 degrees celsius, the fuse should be derated as follows:I = (0.80)(0.85)I_RAT= (0.68)I_RAT

5、Soldering Parameters/焊接參數

6、Dimensions and Structure/尺寸及結構

7、Product Characteristics/產品特性 

8、Packaging/包裝

           2000 pcs in 13 inches dia. reel ,24mm wide tape,EIA Standard 481