MF72功率型热敏电阻
1.产品简介为了避免电子电路中在开机的瞬间产生的浪涌电流,在电源电路中串接一个功率型NTC热敏电阻,能有效地抑制开机时的浪涌电流,并且在完成抑制浪涌电流作用以后,由于通过其电流的持续作用,功率型NTC热敏电阻的电阻值将下降到非常小的程度,它消耗的功率可以忽略不计,不会对正常的工作电流造成影响,所以,在电源回路中使用功率型NTC热敏电阻,是抑制开机时的浪涌,以保证电子设备免遭破坏的最为简便而有效的措施。2.应用范围适用于转换电源、开关电源、UPS电源、各类电加热器、电子节能灯、电子镇流器、各种电子装置电源电路的保护以及彩色显示像管、白炽灯及其它照明灯具的灯丝保护。3.特点:·体积小,功率大,抑制浪涌电流能力强·反应速度快·材料常数(B值)大,残余电阻小·寿命长,可靠性高·系列全,工作范围宽4.产品标志说明5.外型结构和尺寸:(mm)
D+1-2Tmaxd±0.05F 1 ±1F 2 ±1.5直引线弯引线LminL 1 minL 2 ±2MF72-□D56.550.6/0.455/2.532517/58MF72-□D78.550.6532517/58MF72-□D910.55.50.8/0.67.5/55/32517/58MF72-□D1112.55.50.87.5/55/32517/58MF72-□D1314.560.87.552517/58MF72-□D1516.560.810/7.552517/58MF72-□D2021.571.010/7.5/25//MF72-□D2526.581.010/25//备注a、□为额定零功率电阻值b 、17/5其中17表示打弯成型的长引线,5表示打弯成型的短引线说明:若非特别指出,常用外形为Ⅱ型,即:引出线为打弯成型的长引线。6.主要技术参数型号R25最大稳态电流最大电流时近似电阻值耗散系数热时间常数工作温度(Ω)(A)(Ω)(mW/℃)(S)(℃)MF72-5D551.00.353620-55~+200MF72-8D550.80.580620MF72-10D5100.70.771620MF72-16D5160.51.27618MF72-22D5220.51.56618MF72-60D5600.51.87618MF72-100D51000.24.89618MF72-200D52000.16.259618MF72-5D7520.2831030MF72-8D7810.539928MF72-10D71010.616927MF72-12D71210.816927MF72-16D7160.71.003927MF72-22D7220.61.108927MF72-33D7330.51.4851028MF72-200D72000.26.2331128MF72-3D9340.1201135MF72-4D9430.1901135MF72-5D9530.2101134MF72-6D9620.3151134MF72-8D9820.4001132MF72-10D91020.4581132MF72-12D91210.6521132MF72-16D91610.8021131MF72-20D92010.8641130MF72-22D92210.9501130MF72-30D93011.0221130MF72-33D93311.1241130MF72-50D95011.2521130MF72-60D9600.81.5021130MF72-80D9800.82.0101130MF72-100D91000.83.001130MF72-120D91200.83.0151130MF72-200D92000.55.0071132MF72-400D94000.29.8521132MF72-2.5D112.550.0951343MF72-3D11350.1001343MF72-4D11440.1501344MF72-5D11540.1561345MF72-6D11630.2401345MF72-8D11830.2551447MF72-10D111030.2751447MF72-12D111220.4621448MF72-16D111620.4701450MF72-20D112020.5121552MF72-22D112220.5631552MF72-30D11301.50.6671552MF72-33D11331.50.7341552MF72-50D11501.51.0211552MF72-60D11601.51.2151552MF72-80D11801.21.6561552MF72-100D111001.01.8901552MF72-120D111201.02.4061554MF72-1.3D131.370.0621360MF72-1.5D131.570.0731360MF72-2.5D132.560.0881360MF72-3D13360.0921460MF72-4D13450.1201567MF72-5D13550.1251568MF72-6D13640.1701565MF72-7D13740.1881565MF72-8D13840.1941560MF72-10D131040.2061565MF72-12D131230.3161665MF72-15D131530.3351660MF72-16D131630.3381660MF72-20D132030.3721665MF72-30D13302.50.5171665MF72-47D134720.8101765MF72-120D131201.52.1241665MF72-1.3D151.380.0481868MF72-1.5D151.580.0521969MF72-3D15370.0751876MF72-5D15560.1122076MF72-6D15650.1552080MF72-7D15750.1732080MF72-8D1585.50.1782080MF72-10D15105.00.1802075MF72-12D15124.80.2502075MF72-15D15154.50.2682185MF72-16D15164.50.2762170MF72-20D15204.00.2881786MF72-30D15303.50.4381875MF72-47D15473.00.6802186MF72-120D151202.51.6522287MF72-0.7D200.7120.01825112MF72-1D2019.50.02023112MF72-1.3D201.390.03724113MF72-2D2028.20.04025113MF72-3D20380.05524113MF72-5D20570.08723112MF72-6D20660.11325114MF72-8D20860.14225115MF72-10D201060.16224113MF72-12D201250.19524114MF72-16D201650.21225113MF72-0.7D250.7130.01430151MF72-1D251110.02030151MF72-1.5D251.5100.02730152MF72-2D2529.50.02830152MF72-3D2538.50.04432150MF72-4D25480.04732150MF72-5D25580.07032151MF72-6D2567.50.09030151MF72-8D25870.11433151MF72-10D251070.13032150MF72-12D251260.15632150MF72-16D251660.16035152注:若非特别指出,R25的允许偏差为±20%