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SMSD0804-221MT是一款非屏蔽贴片功率电感,核心参数清晰明确,可满足通用中小功率电路需求:
参数项 规格值 关键说明 电感值 220uH 标识为“221”(22×10¹) 精度 ±20% 通用电路偏差要求的合理范围 饱和电流(Isat) 1A 电感值下降≤30%的最大直流电流 直流电阻(DCR) 610mΩ 线圈直流电阻,影响铜损性能 产品类型 非屏蔽功率电感 无磁屏蔽罩,成本更具优势 封装形式 SMD 表面贴装,适配自动化生产 生产品牌 SXN(顺翔诺) 专业电感制造厂商该电感定位为中小功率电源电路的通用元件,适用于对成本敏感、电磁干扰(EMI)要求不苛刻的场景,主要应用包括:
其1A饱和电流可覆盖上述场景的中等功率需求,避免电感饱和导致的电路效率下降。
Isat=1A是功率电感的核心指标,指电感值下降不超过30%时的最大直流电流。当电路电流超过1A时,磁芯会进入饱和状态,电感值骤降,导致纹波增大、效率降低,甚至损坏开关管。1A的Isat平衡了电感尺寸与功率承载能力,适合中小功率应用。
DCR=610mΩ是线圈的直流电阻,直接影响铜损(损耗功率=I²×DCR)。在1A电流下,铜损约0.61W,属于同规格电感的中等水平——既避免了高DCR带来的大损耗,又通过优化绕制工艺控制了成本,适合对损耗要求不极端的通用场景。
非屏蔽电感无磁屏蔽罩,相比屏蔽电感成本降低15%-20%,且电感量一致性更好。但需注意:非屏蔽电感工作时会产生轻微EMI,因此不建议用于医疗设备、通信基站等对EMI要求严格的高端领域,更适合消费电子等大众市场。
采用0804封装(英寸制:0.08"×0.04",公制约2.0mm×1.0mm),体积小巧,引脚间距符合行业标准,可通过回流焊、波峰焊实现自动化贴片,大幅提升生产效率,降低人工成本。
SXN(顺翔诺)是国内专注电感研发生产的厂商,产品覆盖功率电感、贴片电感等多个系列,广泛应用于消费电子、工业控制等领域。SMSD0804-221MT经过严格可靠性测试:
同时符合RoHS环保标准,不含铅、镉等有害物质,满足市场环保要求。
该产品凭借成本优势、稳定性能,成为中小功率电源电路的高性价比选择。
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