5d-11-NTC功率型热敏电阻

YUEMIN南京越敏电子科技有限公司NTCTHERMISTORNTCTHERMISTORNTCTHERMISTORNTCTHERMISTOR负温热敏电阻器8MF71POWERTHERMISTOR抑制浪涌电流工作原理抑制浪涌电流工作原理抑制浪涌电流工作原理抑制浪涌电流工作原理Inrushcurrentlimitingtheory开关电源、电机、变压器等设备，开机瞬间具有很高的浪涌电流，部分元器件可能因此而损伤甚至失效，在电路中串入MF71型NTC热敏电阻器，可就以用很低的成本有效抑制浪涌电流。开机瞬间，热敏电阻处于“冷”态具有较高的阻值，对浪涌电流进行有效抑制。随后由于负载电流的作用使热敏电阻自身发热，阻值骤降10～100倍，消耗功率减少。当下次开机时，热敏电阻器又自恢复成“冷态”，重复上述过程。Manyitemsofequipmentlikeswitch-modepowersupplies,electricmotorsortransformersexhibitexcessiveinrushcurrentswhentheyareturnedon,meaningthatothercomponentsmaybedamagedorfusesmaybetripped.WithNTCthermistorsitispossibletoeffectivelylimitthesecurrents,atattractivecost,byconnectingathermistorinserieswiththeload.TheNTCthermistorsspeciallydevelopedforthisapplicationlimitthecurrentatturn-onbytheirrelativelyhighcoldresistance.Asaresultofthecurrentloadheatsupandreducesitsresistancebyafactorof10to100;thepoweritdrawsreducesaccordingly.itsresistancebecomeshighwhenturnedoffandthenrepeatsthecoursewhenturnedonagain.BasiccircuitdiagramfordiodeprotectionTypicalexampleofaninrushprotectioncircuit:Typicalcurrent-timecurve
特点特点特点特点FEATRUE：：：：抑制浪涌电流能力强、稳态功耗低、残余电阻值小阻值范围和电流范围宽广，系列全stronginrushcurrentlimiting,smallsteadystatepower,smallresidualresistance,widerangeofresistanceandcurrent.
应用范围应用范围应用范围应用范围APPLICATION:转换电源、开关电源、UPS电源、加热器、电子节能灯、电子整流器电源电路、彩色显像管、白炽灯、卤素灯其它照明灯具的灯丝保护。Inrushcurrentlimitinginswitchpowersupplies,UPSpowersupplies,allkindofheater,electronicenergy-savinglamp,electronicimplementofscotchcurrentpowercircuit,colorkinescope,fluorescent,projectorandhalogenlamp，rotationalspeedlimitinginkitchenmachines,softstartofmotorsetc.YUEMIN南京越敏电子科技有限公司NTCTHERMISTORNTCTHERMISTORNTCTHERMISTORNTCTHERMISTOR负温热敏电阻器9
外形尺寸外形尺寸外形尺寸外形尺寸DIMENSION:（UNIT：mm）
典型典型典型典型R-T、、、、V-I特性特性特性特性TYPICALRESISTANCE-TEMPERATRUEVOITAGE-CURRENTCHARACTERISTICSV-ICHARACTERISTICSCURVE0.0010.010.11100.0010.010.1110I(A)V(V)尺寸规格DmaxF±1Tmaxd±0.05D-56.5550.6/0.5D-78.5550.6/0.5D-99.57.5/550.8/0.6D-1111.57.5/550.8D-1314.57.560.8D-1517.57.580.8D-2022.57.5/1080.8/1.047D-1510D-95D-112R5D-201R3D-130R7D-20R-TCHARACTERISTICSCURVE0.010.11101001000-30-101030507090110130150RESISTANCE-OHM47D-1510D-95D-112R5D-201R3D-130R7D-20Temperature(℃)YUEMIN南京越敏电子科技有限公司NTCTCTCTCTHERMISTORTHERMISTORTHERMISTORTHERMISTOR负温热敏电阻器主要技术参数主要技术参数主要技术参数主要技术参数SPECIFICATION额定阻值RatedResistanceat25℃最大稳态电流Max.StateCurrent残余电阻值ResistanceatImax.（Approx）耗散系数ThermalDissipationConstant热时间常数ThermalTimeConstantR25ImaxRIδτ型号规格PartNo.（MF71/NTC）（Ω）（A）（Ω）（mW/℃）（SEC）MF71-5D-5510.330620MF71-10D-5100.70.728620MF71-60D-5600.51.840620Φ5MF71-200D-52000.16.018620MF71-5D-7520.255830MF71-10D-71010.554830MF71-16D-7160.71.020830MF71-22D-7220.61.028830Φ7MF71-200D-72000.26.030830MF71-3D-9330.1251135MF71-4D-9430.1661135MF71-5D-9530.2001135MF71-6D-9630.2111135MF71-8D-9820.3441235MF71-10D-91020.4311236MF71-16D-91620.4591235Φ9MF71-22D-92220.7201240MF71-2R5D-112.550.0841345MF71-3D-11340.1211345MF71-4D-11440.1321345MF71-5D-11540.1391345MF71-6D-11630.2211345MF71-8D-11830.2401345MF71-10D-111030.2511450MF71-12D-111220.3431450MF71-16D-111620.5121450MF71-20D-112020.5461453MF71-22D-112220.5611453MF71-50D-115020.6341453MF71-80D-118011.9891453Φ11MF71-120D-1112012.221453YUEMIN南京越敏电子科技有限公司NTCTHERMISTORNTCTHERMISTORNTCTHERMISTORNTCTHERMISTOR负温热敏电阻器11注：可制作Φ5～25mm，R25为0.5～220Ω，Imax为0.1～20A的产品Note:Size:Φ5～25mm,ratedresistancerange:0.5～220Ω,Imaxrange:0.1~20A额定阻值RatedResistanceat25℃最大稳态电流Max.StateCurrent残余电阻值ResistanceatImax（Approx）耗散系数ThermalDissipationConstant热时间常数ThermalTimeConstantR25ImaxRIδτ型号规格PartNo.（MF71/NTC）（Ω）（A）（Ω）（mW/℃）（SEC.）MF71-1R3D-131.370.0431365MF71-2R5D-132.560.0651365MF71-3D-13360.0891365MF71-4D-13450.0981568MF71-５D-13550.1071568MF71-６D-13650.1131568MF71-8D-13840.1691568MF71-10D-131040.1801568MF71-12D-131230.2861568MF71-16D-131630.3171668MF71-20D-132030.3111665Φ13MF71-25D-13252.50.4321665MF71-1R3D-151.380.0461868MF71-2R5D-152.580.0501870MF71-3D-15370.0631876MF71-4D-15460.0861876MF71-5D-15560.0982076MF71-6D-15650.1352080MF71-8D-15850.1462080MF71-10D-151050.1552080MF71-12D-151240.2252082MF71-16D-151640.2172078MF71-20D-152040.2302080MF71-25D-152530.3792082MF71-47D-154730.4942385MF71-80D-15802.50.6052078MF71-120D-1512020.9852081Φ15MF71-220D-1522013.1502090MF71-0R7D-200.7120.0272598MF71-1R3D-201.3100.04124104MF71-2R5D-202.5100.04424105MF71-2R5D-202.5120.0322598MF71-5D-20570.09024112MF71-8D-20860.1152498MF71-10D-201060.12224100MF71-12D-201260.12824100Φ20MF71-120D-2012021.07624103