WMSIC Electronic Components

SXN SMSD0804-221MT Inductor SMSD0804

ModelSMSD0804-221MT
PackageSMD
BrandSXN
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
SXN SMSD0804-221MT
Type
SXN
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMSD0804-221MT
Electronic Component
1
Package
SMD
Type
Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
1.722g
Inductor
220uH
Electronic Component
1
Electronic Component
BM0265571435
Current
800mA
Resistor(DCR)
610mΩ
Electronic Component
Electronic Component
Electronic Component
1000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SMSD0804-221MT 功率电感产品概述

一、核心参数全面梳理

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

二、典型应用场景

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:

  1. 消费电子电源:手机充电器、充电宝、蓝牙音箱的DC-DC转换模块;
  2. LED驱动电路:小功率LED灯串、台灯背光、显示屏背光的恒流/恒压驱动;
  3. 小型家电控制:豆浆机、加湿器、扫地机器人的电源板滤波与储能;
  4. 物联网节点:低功耗传感器(温湿度、运动传感器)的电源管理模块。

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。

三、关键性能指标解析

3.1 饱和电流(Isat):功率承载的核心阈值

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。

3.2 直流电阻(DCR):损耗与成本的平衡

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。

3.3 非屏蔽设计:成本优先的选择

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。

四、封装与工艺优势

4.1 SMD封装适配自动化生产

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。

4.2 可靠工艺保障稳定性

  • 磁芯采用铁氧体材料(高磁导率,适合功率电感);
  • 绕制工艺稳定,电感值一致性偏差控制在±20%以内;
  • 引脚经抗氧化处理,焊接可靠性高,可通过260℃回流焊温度测试。

五、品牌与品质保障

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:

  • 高低温循环:-40℃~85℃,1000次循环无性能衰减;
  • 湿度测试:85℃/85%RH,500小时无绝缘下降;
  • 振动测试:10-2000Hz,加速度2g,持续1小时无引脚脱落。

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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