【选型】国产陶瓷快熔保险丝CC213A003用于自行车计速码表，最大额定工作电压63Vdc

时间： 2022-09-15 来源：世强

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自行车计速码表一般从主电源的12Vdc或24Vdc可充电电池上取电，经过适配器电路输出5V/2A给自行车计速码表上的可充锂电池充电，为避免因负载短路或过充异常造成燃烧或爆炸风险，建议在主电源母线输出加一颗快熔断保险丝做过流保护设计，选型因素参考如下：

1、额定工作电压：为兼容12Vdc或24Vdc电池供电，以2倍过压考量，建议选择耐压至少48Vdc保险丝；

2、额定工作电流：与负载功率大小相关，考虑到速码表充电电流2A，以1.5倍过流考量，建议选3A快熔断保险丝更合适些；

3、考虑空间结构限制，建议选择小尺寸表贴封装保险丝设计；

针对如上的设计需求，推荐选择电安科技（DA Technology）陶瓷快熔保险丝 CC213A003，0603表贴封装，最大额定工作电压63Vdc，额定工作电流3A，分断电流能力达50A@63VDC，工作温度范围-50℃~125℃，典型电性参数参考如下图1所示。

图1：电安科技（DA Technology）陶瓷快熔保险丝CC213A003典型电性参数

推荐理由如下：

1、宽工作温度范围：-50~125℃，具有出色的高低温环境下过流防护能力；

2、采用0603表贴封装，满足小型化设计需求；

3、分断电流能力50A，具有出色的高安全切断电流能力；

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【选型】电安科技自恢复保险丝PPTC选型指南

目录- 自恢复保险丝PPTC

型号- 1812L1700/6A000,2920L2110/16A000,1812N1150/13B000,1206N0120/30D000,1812N1150/16A000,1812L1400/12B000,1812L,2920L1600/24B000,1812N,0805N0750/6E000,2920L2110/24A000,1206N0750/16D000,2920N1300/6B000,1206L1350/6F000,0603L0750/9F000,0805N0200/9F000,1206L1260/12F000,1206L1450/6D000,1210L1600/6C000,1210L1260/6E000,1812L1550/6B000,2920N1500/16A000,1210L1200/6E000,2920L1900/16A000,1206N0050/60D000,0805L1125/6F000,1812L1400/6B000,1206L1650/12D000,1206L1350/12F000,0805N0100/24F000,1812L1700/12A000,1812L1650/6A000,0805L1300/12E000,1210N1110/16E000,1812N0500/24B000,1812N1150/24A000,0603L0750/6F000,0805L1500/12F000,1206L1750/6D000,1210N0750/24E000,1206L1450/12D000,1210L1750/12C000,1210N0050/60E000,0603L11750/6E000,0603L1300/6E000,1812N1300/8A000,1206L1260/6F000,2920N1500/12A000,1210L1380/12E000,0603N,1210L1450/6E000,1206L1380/6D000,0603L,1812L1750/12A000,0805L1350/6E000,1812N0500/16B000,2920N1260/16B000,0805L1350/12E000,2920L1900/24A000,0603L1260/9E000,1210L1300/12E000,0805N0100/16F000,0805L1260/12E000,2920L1600/16B000,0805N0500/6F000,1206N1110/16D000,2920L1800/24B000,1812N0750/24B000,1210L,1812N1160/8B000,1210N,2920N1400/12A000,1206L1650/6D000,1206N0350/24F000,1812N1110/33A000,1210L1450/12E000,0805L1750/6F000,1812N1110/8B000,1206L1600/6D000,1210N0750/6E000,0603L1200/6E000,0603N0040/24F000,0603N0350/6F000,0805L1750/12F000,1210L1380/6E000,1206N0100/30D000,0603L1100/9F000,1210L1650/12C000,2920L1800/16B000,1210L1175/12E000,1206N0250/24F000,0603L1300/9E000,2920N1250/16B000,1812N0750/33A000,1812N1125/8B000,0603L0500/9F000,0805N1000/6E000,2920N0750/33B000,1812L1450/12B000,1206N0500/6F000,1812N1260/16A000,2920N1300/24A000,1812N0200/30A000,1206N0160/30F000,2920L2120/16A000,0805L1200/12F000,0805L0750/12F000,1210L1400/12E000,1812L1260/12B000,1206N1110/8F000,1812N0100/60A000,1812L1900/12A000,0805L1200/6F000,1812L1600/12A000,1210L1600/12C000,2920L1700/24B000,1210N1150/6E000,1210N0500/16E000,0805L1260/6E000,1812N0750/13B000,2920N1185/33A000,1206L1400/12D000,0805L1110/12F000,1206L1200/6F000,1812L1500/6B000,0603N0500/6E000,1210L1700/6C000,1812L1300/12B000,2920N,2920N0300/60B000,1210L1150/12E000,2920N1200/16B000,2920L,1812L1750/6A000,1206L1200/12F000,0805L1400/6E000,1812L1650/12A000,1206N0200/24F000,0805L13800/12E000,1812L1800/12A000,1206L1750/6F000,0805N0050/24F000,2920N1125/33B000,0805L1400/12E000,1812N1110/24A000,1206L1300/6F000,0805L1500/6F000,1210N1200/6C000,1206L1400/6D000,1210N1175/6C000,1812L1350/12B000,1206L1550/12D000,2920L1500/24B000,1206L1700/12D000,1812N1200/13B000,1812L1500/12B000,1812N1260/8A000,0805L1110/6F000,0603N0200/9F000,0805L1300/6E000,0603L1125/6F000,1206N0500/13F000,0805L1380/6E000,2920N1400/16A000,1812L1800/6A000,2920L2100/16A000,2920L2120/24A000,1812N0300/30A000,1206N0500/24D000,0603L1100/6F000,1206L1700/6D000,1812N1125/24A000,1210N0100/30E000,1812N1200/8B000,0603L0350/6F000,1206L1750/12D000,1210L1300/6E000,1206N1200/6D000,0805N,0805L,2920N1100/33B000,1210L1500/6C000,0805N0250/6F000,1812N1200/16A000,1210L1650/6C000,1812L1450/6B000,1206L1150/6F000,0805N1100/6E000,1812N1260/13A000,1206L1500/12D000,1812L1300/6B000,0805N0050/16F000,1812N1125/16A000,1206N0350/16F000,1812N1160/13B000,1210N0350/16E000,1210L1500/12C000,2920N0500/60B000,1206L1150/12F000,1206L1750/12F000,1210N0200/30E000,1210L1260/12E000,1206L1300/12F000,1812N1150/8B000,1812L1550/12B000,1812L1900/6A000,1206L,1206N0500/16F000,1206N,1206N0750/13F000,1210L1700/12C000,1206N1150/6D000,0603L1260/6E000,1210L1350/6E000,1210L1400/6E000,1206N1110/13D000,1812L1350/6B000,1210L1350/12E000,1210L1800/12C000,2920N1260/24B000,1210L1800/6C000,1206L1380/12D000,1812N1110/16B000,2920N1200/24A000,1206N0050/30D000,0603N0100/16F000,1812L1850/6A000,0805N0350/6F000,0603L11750/9E000,1206L1600/12D000,1206N1100/8F000,1812L1600/6A000,1206N0100/60D000,1812N0140/60A000,1812N0500/30B000,1206N0750/8F000,2920L2100/24A000,1812N1160/16A000,2920N1150/33B000,1206L1500/6D000,0805L1125/12F000,1206L1550/6D000,1210L1550/6C000,2920L1700/16B000,0603L0500/6F000,1206N0250/16F000,1210N1110/6E000,0603N0250/9F000,1812N1250/16A000,2920N1300/16A000,0805N0300/6F000,0603L1200/9E000,1812L1850/12A000,1210L1200/12E000,0603L0350/9F000

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