WMSIC Electronic Components

SXN SM5845-101KT Inductor SM5845

ModelSM5845-101KT
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+

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Technical data

Product details

19 specifications

Core information

Product name
SXN SM5845-101KT
Type
SXN
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SM5845-101KT
Electronic Component
1
Package
SMD
Type
Display Inductor
Electronic Component
Power Inductor
Electronic Component
±10%
Electronic Component
0.616g
Inductor
100uH
Electronic Component
1
Electronic Component
BM0264911260
Current
520mA
Resistor(DCR)
700mΩ
Electronic Component
Electronic Component
Electronic Component
1500

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

SM5845-101KT 功率电感产品概述

SM5845-101KT是顺翔诺(SXN)品牌推出的一款非屏蔽表面贴装功率电感,针对中等功率需求的电子电路设计,兼具成本优势与紧凑尺寸,适用于多种消费电子及小型设备的电源管理场景。

一、产品基本定位与品牌背景

顺翔诺(SXN)作为国内电感研发生产厂商,其产品线覆盖功率电感、贴片电感等品类。SM5845-101KT属于该品牌经济型非屏蔽功率电感,定位为“中等电流、小尺寸、低成本”的电源储能/滤波元件,适配对电磁干扰(EMI)要求不高的电路设计。

二、核心电气参数深度解析

SM5845-101KT的电气参数经过标准化设计,关键指标及意义如下:

1. 电感值与精度

电感标称值为100uH,精度**±10%**(命名“101”对应“10×10¹=100uH”,符合行业规则)。该精度满足绝大多数电源滤波、DC-DC转换的储能需求,无需额外校准即可稳定工作。

2. 电流规格

  • 额定电流(Irms):520mA:电感可长期稳定工作的最大电流,通过该电流时电感值、温度变化均在允许范围内,无性能衰减。
  • 饱和电流(Isat):560mA:电感值下降至标称值80%(行业通用标准)时的电流。若电路峰值电流超过该值,电感储能能力骤降,可能导致电源纹波增大、效率降低。

3. 直流电阻(DCR)

直流电阻为700mΩ,直接影响电感功耗(P=I²×R)。在额定电流520mA下,功耗约0.19W,属于中等水平,需注意电路布局散热,避免局部过热。

三、封装尺寸与机械特性

SM5845-101KT采用表面贴装(SMD)封装,尺寸为5.8mm×5.2mm(长×宽),高度约2.0mm(行业常规),属于紧凑型贴片电感,适配自动化贴装生产线,可集成于高密度PCB设计中。

作为非屏蔽电感,其结构简单、成本较低,但需注意:非屏蔽设计会产生电磁辐射,若电路对EMI要求较高(如高频通信模块),需搭配屏蔽罩或选择屏蔽电感。

四、典型应用场景

SM5845-101KT的参数特性使其适用于以下场景:

1. 电源管理电路

  • DC-DC降压/升压转换器(如5V转3.3V、3.3V转1.8V低功耗模块);
  • 线性电源输出滤波,抑制纹波噪声;
  • 电池供电设备的电源储能,提升续航稳定性。

2. 消费电子与小型设备

  • 智能手机、平板电脑的电源管理单元(PMU);
  • 便携式医疗设备(血糖仪、血压计)的电源模块;
  • 智能家居控制器(智能插座、温湿度传感器)的电源滤波。

3. 低功耗通信模块

  • 蓝牙、WiFi、LoRa等无线模块的电源滤波,满足中等电流需求。

五、选型与使用注意事项

为确保稳定工作,需注意以下几点:

1. 电流匹配

  • 工作电流需低于520mA,峰值电流不得超过560mA,避免电感饱和失效。

2. EMI防护

  • 对EMI敏感的电路,需在电感周围加屏蔽罩,或与敏感元件保持≥5mm距离。

3. 散热设计

  • 确保PCB电感焊盘散热面积足够,避免密闭空间密集布局。

4. 精度要求

  • 若需更高精度(如精密滤波),需选择±5%或更高精度的电感型号。

六、总结

SM5845-101KT作为顺翔诺经济型非屏蔽功率电感,以100uH±10%电感值、520mA额定电流、紧凑SMD封装为核心优势,兼顾成本与性能,适用于中等功率、低EMI要求的电路。在电源管理、消费电子等领域具有广泛应用前景,是小型化设备设计的实用选择。

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