TRM055

POLYMER PTC RESETTABLE FUSE Product: Resettable Fuse Revision: D Date: 2022-8-1 Page No.: 1 OF 1 电路保护元器件专业制造商 Web: http://www.tlcet.com.cn Part Number:TRM055 1、Physical Dimensions Part Number TRM055 A B C D E Lead Max Max TYP Min Max Φ 19.8 24.9 5.1 7.6 4.5 0.80 M055 XX IT (A) TRM055 0.55 1.25 M 055 Holding Current Max.Interrupt voltage XX Lot No. C Vmax IH (A) Logo B D 2、Electrical Characteristics Part Number E A Unit:mm OP Vdc 240 I max (A) 7.0 Ttrip (Max time to trip) Vmax Interrupt Vrms 265 Current(A) 2.75 Time(S) 26.0 IH: Holding Current: maximum current at which the device will not trip in 25℃ still air. IT: Tripping Current minimum current at which the device will trip in 25℃ still air. Vmax: Maximum voltage device can withstand without damage at rated current. I max: Maximum fault current device can withstand without damage at rated voltage. T trip: Maximum time to trip(s) at assigned current. Pd typ: Rated working power. R min: Minimum resistance of device prior to trip at 25℃. R max: Maximum resistance of device prior to trip at 25℃. R1 max: Maximum resistance of device is measured one hours post reflow at 25℃. Pd typ （W） R min (Ω) R max (Ω) R1max (Ω) 3.4 0.45 0.84 1.45 3、Thermal Derating Part Number TRM055 Ambient Operating Temperature -40℃ -20℃ 0℃ 25℃ 40℃ 50℃ 60℃ 70℃ 85℃ 0.87 0.76 0.65 0.55 0.44 0.39 0.33 0.28 0.21 4、Wave Soldering Parameters Profile Feature Condition Average Ramp-Up Rate (Tsmax to TP) 4ºC/second max. Preheat -Temperature Min (Tsmin) -Temperature Max (Tsmax) -Time (Tsmin to Tsmax) 100ºC 125ºC 60-180 seconds Peak Temperature (TP) 265ºC Max Time at Peak Temperature (tP) 5 seconds Ramp-Down Rate 6 ºC /second max. Time 25ºC to Peak Temperature 5 minutes max. Storage Condition 0ºC ~35ºC, ≦70%RH, 2 Years 5、Package Information Packing quantity:500pcs/bag 6、Agency Recognition：TUV Caution:Operation beyond the rated voltage or current may result in rupture electrical arcing or flame.Specifications are subject to change without notice. TEL: 86-0769-3892 0554 FAX: 86-0769-8793 2077 E-mail:sales@tlcet.com.cn Address:No.18,5th GaoLi Road,TangXia Town,DongGuan,GuangDong,P.R China 523710