1、 Description, Features and Applications/产品特性及应用范围
本产品适用于各类电子设备电路初、次级电路板的过流保护，广泛应用于固态照明、电池充电、消费电子、电子镇流器、LED AC/DC电源供应、网络通信、医疗仪器及工业控制器等领域。
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/执行标准
In accordance with UL 248-14.
3、Electrical Characteristics for Series/电气特性
% of Ampere rating | OpeningTime |
100% | 4 hours, Minimum |
200% | 60 sec., Max. |
4、Electrical Specifications by Item/电气规格
●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)IRAT= (0.68)IRAT
5、Soldering Parameters/焊接参数
6、Dimensions and Structure/尺寸及结构
7、Product Characteristics/产品特性 
8、Packaging/包装
2000 pcs in 13 inches dia. reel ,24mm wide tape,EIA Standard 481
<
<
<
客服1 
客服2