【选型】国产快熔保险丝用于网络交换工控机48VDC电源输入过流防护设计，分断电流能力达100A
网络交换工控机电源供电一般为24VDC、48VDC，高温一般超过70℃，低于85℃，为避免电源输入因负载短路异常造成燃烧风险，建议在电源输入母线上加入一颗快熔保险丝做过流保护设计，其电流选择一般与负载功率相关，一般为6A左右，市面上一般选择125VDC/10A的快熔保险丝设计，满足高温70℃降额下（10%降额，70℃温度下保险丝额定工作电流为9A），仍有1.5倍过流防护能力。
针对如上的设计需求，推荐选择电安科技（DA TECHNOLOGY）方形保险丝SF301A010，2410封装，最大额定工作电压125VDC，额定工作电流10A，高温70℃条件下，降额不足10%，分断电流能力高达100A@125VDC，工作温度范围-55℃~125℃，典型电性参数及温度降额曲线参考如下图1所示。
图1：电安科技（DA TECHNOLOGY）快熔保险丝SF301A010典型电性参数及温度降额曲线示意图
推荐理由如下：
1、常温25℃条件下的正常冷却阻值为0.006Ω，自损耗很小；
2、市面上有成熟应用，产品性能得到验证；
3、具有良好的供货交期，可以快速支持样品和量产服务。
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为避免制氧机气体检测模块电源输入因负载短路异常造成燃烧风险，建议在电源输入母线上加入一颗快熔保险丝做过流保护设计，市面上一般选用250VAC，5A快熔保险丝设计，电安科技玻璃管快熔保险丝CA421A005，封装5x20mm，不带引线，分断电流能力达100A@250VAC。
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为避免燃气表测温模块220VAC交流电源输入因负载短路异常造成燃烧风险，建议在电源输入母线上加入一颗慢熔保险丝做过流保护设计，市面上一般选择250VAC,1A的保险丝设计，推荐选择电安科技慢熔断保险丝SF303A001，最大额定工作电压250VAC，额定工作电流10A。
电安科技FUSE保险丝选型表
电安科技提供了FUSE保险丝系列产品，种类齐全。产品可用在汽车电子、工业，通讯、新能源等领域。
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产品型号
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品类
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Voltage Rating(V)
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Current Rating(A)
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IR(A)
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Fast/Slow Acting
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AECQ Qualification
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Remark
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Package
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CC201A.250
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陶瓷贴片保险丝
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72VDC
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0.25A
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50A@72V
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Fast
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AEC-Q200
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/
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1206
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选型表 - 电安科技 立即选型
电安科技 产品及应用介绍
描述- 电安科技 产品及应用介绍
型号- AZ5B25-01F,5.0SMD,SMBJ,MF551,SLVU2.8-4,CQ06PF,MF551A050X,SP1003-01,SLVU2.8-8,SD05-36,TPAU10L-3,TPAU10L-2,TPAU10L-1,CA501,SD05-36C,SF331A040,RCLAMP7538,SMAJ,F0603FA,CC12H,MF551A063X,CQ12LH,SF331,SMF,SF332,SP0502BAHTG,10KPA,TPA323HL,SEF,CQ12LV,AF2 2410,ABC-V,SP3012,F0402 FA,ESD7104,SF331A030,ABC,BP3610A50,ESD8011-D,SP40XX-C,SET,ABE,SMDJ,SF331A025,NSPM2251,SESD1004Q4,BP,FLU,ABP,12KP,SM24CANA-HTG,12CF,SLVU2.8-4BTG,F1206SB,5KP,3216FF,ASM,SF331A020,CC221,TPA23C,TPA323H,5.0SMDJ,BP3610A60,SF331A015,ESD8451,SMCJ,TPA323H-C,UCLAMP3381,SP3030,TM10-621,AZ3028-01S,AZ5A45-01F,SP3022-01ETG,1KSMB,ESD7004,429,AZ3028-04,F1206 HB,ADA,F1206 HA,TF101,TF102,BP3610A30,ESD9XXXST5G-D,TPA23,TPA3810-8L,SPF,MDA,SP1007-01,CQ06LF,MDA-V,TPA1006,SM6S,SF331A080,TPA5235U,TPA323,435,6125FA,314,CA422,437,CC204,438,CC203,CC202,CA421,CC201,8KP,TF111,TF112,BP3610A40,TM10-175,CQ12PF,SRV05-4,TPA1006L1,RCLAMP0524,440,AZ5325-01F,443,324,CA435,325,326,CA433,CA434,AZ5425-04F,CA431,CC213,CA432,CC212,606,CC211,F1206FA,6125TD,TPA0603L,TPA0603G,TM10-320,AZ4007-02,MF551A040X,AZ5015-01F,SM8T,SF331A060,451,452,453,SM8S,TPASRV05-4,SLD8S,454,TPA1006G,TPA23C-24,456,SF331A100,TPA1006H,458,216,SLVU2.8-8BTG,TPA2231H,MF501,BP3610A20,S505,TPAU10L,S501,SP3022-01WTG,3216TD,TPA1006L,SF302,SF303,APA,SF301,466,SF304,501,ESD5581-D,TPA0603,TM10-820,504,505,TPA1255,0603FA,SF331A050,06CF
Square Surface Mount Fuse SF302
型号- SF302A.800,SF302A03.5,SF302A.700,SF302A01.6,SF302A02.5,SF302A06.3,SF302A07.5,SF302A030,SF302A.400,SF302A.300,SF302A.600,SF302A01.5,SF302A.500,SF302A016,SF302A015,SF302A1.25,SF302A012,SF302A.250,SF302A010,SF302A018,SF302A.315,SF302A020,SF302A.750,SF302A.375,SF302A.630,SF302,SF302A006,SF302A005,SF302A004,SF302A003,SF302A025,SF302A002,SF302A001,SF302A3.15,SF302A008,SF302A007
SF331 Square Surface Mount Fuse
型号- SF331A008,SF331A006,SF331A015,SF331A025,SF331,SF331A060,SF331A070,SF331A080,SF331A100,SF331A010,SF331A020,SF331A030,SF331A040,SF331A050
SF334E Square Surface Mount Fuse
型号- SF334A.630E,SF334E,SF334A07.5E,SF334A001E,SF334A003E,SF334A025E,SF334A005E,SF334A.500E,SF334A015E,SF334A03.5E,SF334A006E,SF334A.750E,SF334A008E,SF334A010E,SF334A.800E,SF334A020E,SF334A.600E,SF334A002E,SF334A004E,SF334A050E,SF334A060E,SF334A030E,SF334A02.5E,SF334A06.3E,SF334A040E
Square Surface Mount Fuse SF331E
型号- SF331A080E,SF331A025E,SF331E,SF331A015E,SF331A006E,SF331A008E,SF331A070E,SF331A060E,SF331A050E,SF331A040E,SF331A030E,SF331A020E,SF331A010E,SF331A100E
电安科技（DA TECHNOLOGY）方形贴片保险丝选型指南
型号- SF301A3.15,SF304A.062,SF303A2.50,SF302A.600,SF304A003,SF304A002,SF301A020,SF304A001,SF304A007,SF304A006,SF303A.600,SF304A005,SF303A.200,SF304A.050,SF301A.050,SF301A.200,SF304A.200,SF304A.600,SF303A.315,SF301A.600,SF302A03.5,SF301A008,SF303A1.25,SF302A07.5,SF301A001,SF304A3.15,SF301A003,SF301A002,SF301A005,SF301A004,SF301A007,SF301A006,SF302A.500,SF304A.315,SF302A1.25,SF301A.375,SF303A.500,SF303A.100,SF303A3.15,SF303A003,SF303A002,SF303A005,SF303A004,SF303A001,SF301A012,SF304A.150,SF301A.150,SF302A.750,SF303A007,SF301A015,SF302A.630,SF303A006,SF304A.300,SF301A.300,SF304A.700,SF301A010,SF304A01.5,SF301A.700,SF301A01.5,SF302A.800,SF303A.250,SF302A02.5,SF302A06.3,SF301A.080,SF301A.750,SF301A.630,SF304A.375,SF301A1.25,SF303A.800,SF303A06.3,SF303A.400,SF303A.080,SF302A020,SF301A.250,SF304A.250,SF304A.125,SF304A.400,SF301A.125,SF301A.400,SF304A.800,SF304A02.5,SF304A06.3,SF301A02.5,SF301A.800,SF301A06.3,SF303A.630,SF303A.750,SF302A.700,SF304A.080,SF301A.062,SF302A01.5,SF304A.630,SF302A015,SF304A.750,SF303A3.50,SF302A012,SF302A010,SF303A.700,SF303A.300,SF303A1.50,SF304A1.25,SF302,SF302A006,SF302A005,SF303,SF302A004,SF304A.100,SF301,SF301A.500,SF302A003,SF302A002,SF304A03.5,SF302A001,SF302A3.15,SF304,SF304A.500,SF301A.100,SF301A07.5,SF303A.375,SF302A008,SF301A03.5,SF302A007
Square Surface Mount Fuse SF308
型号- SF308A.050,SF308A.160,SF308A001,SF308A.080,SF308A.500,SF308,SF308A.100,SF309,SF308A.250
SF301 Square Surface Mount Fuse
型号- SF301A008,SF301A001,SF301A3.15,SF301A003,SF301A002,SF301A005,SF301A004,SF301A007,SF301A006,SF301A.750,SF301A.630,SF301A1.25,SF301A.375,SF301A020,SF301A.315,SF301A012,SF301A.250,SF301A016,SF301A015,SF301A018,SF301A.200,SF301A.300,SF301A.400,SF301,SF301A.500,SF301A010,SF301A07.5,SF301A.600,SF301A01.6,SF301A02.5,SF301A.700,SF301A01.5,SF301A.800,SF301A06.3,SF301A03.5
Square Surface Mount Fuse SF302E
型号- SF302A018E,SF302A.315E,SF302A008E,SF302A.800E,SF302A1.25E,SF302A016E,SF302A.600E,SF302A006E,SF302A01.6E,SF302A02.5E,SF302A06.3E,SF302E,SF302A.750E,SF302A.300E,SF302A004E,SF302A012E,SF302A002E,SF302A3.15E,SF302A010E,SF302A030E,SF302A020E,SF302A.700E,SF302A007E,SF302A.500E,SF302A005E,SF302A03.5E,SF302A01.5E,SF302A07.5E,SF302A.250E,SF302A.400E,SF302A.630E,SF302A003E,SF302A025E,SF302A015E,SF302A001E,SF302A.375E
电安科技-LITTELFUSE/BUSSMANN/AEM/SKYGATE等FUSE对照表
描述- 电安科技与国际知名厂牌保险丝系列对照，其中包括LittelFuse, Bussmann,SKYGATE,AEM,Conquer,BetterFuse,ASTM。电安科技在价格和供应上比较有优势。在汽车BMS、汽车电子、电源、LED驱动、工业设备、通讯等市场有较多应用。
型号- MF551,CQ06PF,477,HV610,F0603FA,CC12H,CQ12LH,SF331,241,244,245,246,SEF,247,525,CQ12LV,ABC-V,ABC,SET,FLU,PB03,PB05,12CF,F1206SB,24110,3216FF,HV110,CC221,UBM,25H,HV640,429,1206FT,SPF,MDA,F1206HA,CQ06LF,MDA-V,F1206HB,UDA,435,314,6125FA,1206FA,437,CA422,CC204,438,CC203,CC202,CA421,CC201,HV650,CQ12PF,440,682,441,683,443,324,325,CA435,326,CA433,CA434,SEF(G),CC213,CA432,CC212,606,HV660,CC211,F1206FA,6125TD,ADA/APA,AF22410,691,692,451,452,453,454,456,215,458,216,F0402FA,614,0402FT-V,HV670,MF501,S505,S501,3216TD,SF302,SF303,SF301,ABE/ABP,466,501,SF304,504,505,506,0603FA,HV680
对照表 - 电安科技
电子商城
授权代理品牌：集成电路
授权代理品牌：分立元件
授权代理品牌：接插件及结构件
授权代理品牌：部件、组件及配件
授权代理品牌：电源及模块
授权代理品牌：电子材料
授权代理品牌：仪器仪表及测试配组件
授权代理品牌：电工工具及材料
授权代理品牌：机械电子元件
授权代理品牌：加工与定制
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