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PK0810-471MB是顺翔诺(SXN)品牌推出的一款非屏蔽插件功率电感,采用径向引线封装,专为中小功率电路的滤波、储能及EMI抑制设计,凭借经济实用的特性,广泛应用于消费电子、小家电等领域。
该电感型号为PK0810-471MB,其中“PK0810”隐含外形尺寸(约8mm直径×10mm高度,具体以厂家规格为准),“471MB”标识电感标称值及精度(470uH±20%)。品牌为顺翔诺(SXN),属于国内成熟元器件厂商,产品质量稳定可靠。
从类型上看,PK0810-471MB属于非屏蔽插件功率电感:非屏蔽结构降低了成本,径向引线设计支持传统通孔焊接,无需贴装设备,适用于中小批量生产或原型开发,安装便捷性突出。
电感的电气参数直接决定适用场景,PK0810-471MB的关键参数如下:
标称电感值为470uH,精度±20%,实际值范围在376uH~564uH之间。该精度属于功率电感常规水平,能满足多数对电感偏差不苛刻的电路需求(如简单滤波、储能),无需额外校准。
额定电流为420mA,是电感允许连续通过的最大直流电流。若电流超过此值,磁芯会饱和,导致电感值急剧下降,甚至线圈过热损坏。设计时需确保负载电流峰值不超420mA,建议预留10%~20%余量(实际工作电流≤350mA),避免性能失效。
直流电阻为800mΩ(0.8Ω),是线圈本身的电阻值。在额定电流420mA下,损耗约0.14W,属于低损耗水平,适合对功耗敏感的低功率电路。
PK0810-471MB的结构设计兼顾成本与实用性:
无金属屏蔽罩,相比屏蔽电感成本更低、体积更紧凑,但存在一定电磁辐射(EMI)。因此不适用于EMI要求严格的场景(如医疗设备、通信基站),但适合普通消费电子、小家电等对EMI不敏感的领域。
采用径向引线(引脚从主体两端垂直引出),支持通孔焊接,无需特殊贴装设备,适合手工焊接或传统插件生产线。引脚间距符合常规PCB规范,兼容性良好。
外形尺寸小巧(约8mm×10mm),能节省PCB空间,适合紧凑型电路设计(如小型LED驱动、微型电源模块)。
PK0810-471MB的参数特性决定了其适用于以下场景:
如小型风扇、加湿器、电热毯的电源滤波回路,工作电流通常100mA~300mA,符合额定电流要求;470uH电感可有效抑制电源纹波,提升电路稳定性。
1~3W小功率LED驱动电源中,电感用于储能与滤波,470uH配合420mA额定电流,能满足储能需求,成本优势明显。
如手机充电器次级滤波、蓝牙耳机电源模块(低功率部分),800mΩ的DCR损耗可控,适合低功耗设计;非屏蔽结构的EMI可通过电容滤波弥补。
遥控玩具电机驱动滤波、电子贺卡电源电路,对成本敏感且电流需求低,PK0810-471MB性价比突出。
PK0810-471MB作为经济实用的非屏蔽插件功率电感,以470uH电感值、420mA额定电流及800mΩ低DCR为核心优势,适用于多种中小功率消费电子与小家电场景。其径向引线封装支持便捷焊接,小型化设计节省PCB空间,是低成本功率电感选型的优质选项。
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