概要PPTC由高分子有机聚合物搀加导电的碳黑粒子组成。PPTC正常温度下为低阻抗，当有过电流通过或环境温度高于动作温度时，其内部导电链断开，阻抗迅速上升，呈高阻抗状态；当过电流消失或温度降低后，导电链再度结合，***为低阻抗。应用时表现为通过高阻限流作用，对***性的电流过载冲击进行***。产品特点：***D结构适合高密度安装l动作时间短l良好的焊接性能应用：USB、HDMI、IEEE1394接口保护l锂电池、电池组及可充电电池保护l液晶电视、电脑、***等消费类电子设备l通讯、安防及工控行业AgencyFileNumberRegulationStandardE2014312011/65/EUR50099121IEC61249-2-21:2003ELECTRICALCHARACTERISTICS***D0805Series***D0805PartNumberIhold(A)Itrip(A)Vmax(Vdc)Imax(A)Pdmax.(W)MaximumTimeToTripResistanceAgencyApprovalCurrent(A)Time(Sec.)Rmin(Ω)R1max(Ω)***D0805P010TF0.100.30151000.50.501.501.0006.000√√***D0805P020TF0.200.5091000.58.000.020.6503.500√√***D0805P035TF0.350.7561000.58.000.100.2501.200√√***D0805P050TF0.501.0061000.58.000.100.1500.850√√***D0805P075TF0.751.506400.68.000.200.0900.350√√***D0805P100TFT1.001.956400.68.000.300.0600.210√√***D0805P110TF1.102.0061000.88.000.100.0500.160√√)