TLC-LSMD185/28

POLYMER PTC RESETTABLE FUSE Product: Resettable Fuse Revision: A Date: 2019-2-27 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:TLC-LSMD185/28 1、Physical Dimensions(size of 2920) Unit:mm A Part Number TLC-LSMD185/28 B C D Min Max Min Max Min Max Min 6.73 7.98 4.80 5.44 0.90 1.30 0.30 Top and Bottom View Marking Marking T185 IH (A) IT (A) Vmax (V) I max (A) Ttrip (Max time to trip) Current(A) Time(S) TLC-LSMD185/28 1.85 3.70 28 40 8.0 2.0 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℃. R1 max: Maximum resistance of device is measured one hours post reflow at 25℃. Noted: All electrical function test is conducted after PCB mounted. C B D 2、Electrical Characteristics Part Number Side View A Pd typ （W） R min (Ω) R1max (Ω) 1.5 0.030 0.150 3、Thermal Derating TLC-LSMD185/28 Hold Current(A) Trip Current(A) Maximum ambient operating temperature -40℃ -20℃ 0℃ 25℃ 40℃ 50℃ 60℃ 70℃ 85℃ 2.80 2.47 2.17 1.85 1.54 1.39 1.22 1.07 0.85 5.60 4.94 4.34 3.70 3.08 2.78 2.44 2.14 1.70 4、Solder Reflow Recommendations 20-40s 260℃ Critlcal Zone Ramp-up Temperature 217℃ Recommended Pad Layout(mm) 2.0±0.5 2.0±0.5 60-150s 200℃ 5.3±0.1 Ramp-down Preheat 150℃ 25℃ 60-180s 8 minutes max Average Ramp-Up Rate:3 ℃ /second max 4.6±0.1 Time Ramp-Down Rate:6 ℃ /second max Notes:If reflow temperatures exceed the recommended profile,devices may not meet the performance requirements. 5、Package Information Packing quantity:1000PCS/Reel Note:Reel packaging per EIA-481-1 standard 6、Agency Recognition： 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