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SDFL1005QR82KTF是顺络电子(Sunlord)推出的一款高频小功率贴片电感,采用0402英制封装(对应公制1005尺寸),专为小型化、低功耗射频及数字电路设计,核心参数覆盖820nH电感值、±10%精度、15mA额定电流等,可满足多数中低频段电子设备的滤波、匹配及储能需求。
该电感属于顺络常规贴片电感系列,型号命名规则清晰:
产品采用无铅环保封装,符合RoHS及REACH标准,适配主流SMT生产线,无需额外工艺调整。
电感标称值为820nH(0.82μH),精度±10%,实际值范围738nH~902nH。该值属于中高频段常用电感量,适配射频匹配、滤波及小功率DC-DC电路的储能需求,精度满足一般消费电子、工业控制电路的设计要求(高精度场景需搭配校准或选更高精度型号)。
最大连续额定电流15mA,指常温(25℃)下长期稳定工作的最大电流。若电流超15mA,磁芯会逐渐饱和,电感值下降10%以上,同时DCR损耗增加,可能导致电路性能波动或元件过热。
DCR为900mΩ(0.9Ω),是线圈直流阻抗,直接影响功耗:15mA电流下损耗仅≈0.02mW,属于低功耗设计,适合电池供电的便携设备。
Q值20@10MHz,是电感储能与损耗的比值(Q=ωL/R)。10MHz频段高Q值(20)使电感适合射频前端信号匹配、滤波,可减少信号衰减,提升电路信噪比。
自谐振频率65MHz,是电感寄生电容与自身电感的谐振频率。工作频率需控制在SRF的1/3以下(即22MHz以内),避免谐振导致参数剧变。
采用0402英制贴片封装(尺寸:长1.0mm±0.1mm,宽0.5mm±0.1mm,高0.5mm±0.1mm),体积小巧,适合高密度PCB布局(如智能手机、智能穿戴主板)。无引线设计使寄生电容、电感极小,进一步降低高频损耗。
结合参数特性,该电感主要应用于:
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