WMSIC Electronic Components

SXN SMMS1770-101M Inductor SMMS1770

ModelSMMS1770-101M
PackageSMD,17.5x17.15x7mm
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 SMMS1770-101M
Type
SXN
Minimum package
300 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMMS1770-101M
Electronic Component
1
Package
SMD,17.5x17.15x7mm
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
13.44g
Inductor
100uH
Electronic Component
1
Electronic Component
BM0265793622
Current
5.3A
Resistor(DCR)
118mΩ
Electronic Component
Electronic Component
Electronic Component
300

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

SMMS1770-101M 功率电感产品概述

一、产品基本定位

SMMS1770-101M是顺翔诺(SXN)推出的贴片式功率电感,针对中大功率电子电路的储能、滤波需求设计,兼具紧凑尺寸与稳定电气性能,适合自动化贴装生产,广泛覆盖电源、车载、工业控制等领域。产品采用SMD封装,尺寸仅17.5×17.15×7mm,在有限PCB空间内可承载5.3A连续工作电流,能满足多数中功率设备的电源转换场景需求。

二、核心电气参数解析

该电感的关键参数直接决定应用适配性,以下是核心参数的实际意义与价值:

1. 电感值与精度

电感值为100μH(±20%),属于中功率电感常见规格——100微亨的电感量可有效储存电能,满足DC-DC转换器、LED驱动等电路的储能需求;±20%的精度平衡了成本与性能,适合对电感值波动要求不高的通用场景(若需高精度,需结合电路设计额外补偿)。

2. 电流参数(额定电流+饱和电流)

  • 额定电流5.3A:电感连续工作时,自身温度升高不超过标准值(通常≤40℃)的最大电流——设备长期运行需将电流控制在5.3A以内,避免过热影响稳定性;
  • 饱和电流12A:磁芯开始饱和的临界电流(此时电感值下降约30%),是脉冲/过载场景的重要参考(如车载启动瞬间大电流),但需注意:饱和电流并非“长期工作电流”,仅为磁芯饱和的阈值。

3. 直流电阻(DCR)

DCR为118mΩ,即直流下的电阻值。铜损(P=I²×DCR)是功率电感的主要损耗,118毫欧的阻值在同规格中属于中等偏优——5.3A下铜损约3.3W,既控制了损耗,又通过线径设计保证了电流承载能力。

三、物理特性与封装说明

SMMS1770-101M采用SMD贴片封装,具体尺寸为:长17.5mm×宽17.15mm×高7mm,优势在于:

  1. 贴装效率高:无引脚设计,适合回流焊、波峰焊等自动化工艺,可直接集成到PCB表面,无需额外插件操作;
  2. 散热合理:紧凑尺寸下,优化磁芯与线圈接触面积,配合PCB焊盘散热设计,可有效散发热量;
  3. 空间适配性强:平面尺寸小,在电源模块PCB布局中无需占用过多空间,适合小型化设备设计。

四、典型应用场景

结合参数特性,该电感的适配场景包括:

1. 开关电源电路

  • AC-DC转换器(笔记本电源、充电器)的输出滤波电感;
  • DC-DC升压/降压电路(LED驱动、路由器电源)的储能电感;

2. 车载电子设备

  • 车载充电器(12V/24V转5V/9V)的电源模块;
  • 汽车LED车灯驱动电路(电流范围匹配车灯功率需求);

3. 工业控制领域

  • PLC(可编程逻辑控制器)的电源模块;
  • 小型电机驱动电路的辅助滤波;

4. 消费电子

  • 智能家电(机顶盒、智能音箱)的电源转换部分;
  • 便携式设备备用电源(移动电源升压模块)。

五、选型与使用注意事项

为保证长期稳定工作,需注意:

  1. 电流控制:连续电流≤5.3A,脉冲峰值不超12A(避免磁芯饱和导致电路异常);
  2. 散热设计:PCB预留≥10mm²散热铜箔,高温环境下可加散热片;
  3. 精度适配:若电路需更高精度(如精密滤波),需换用±10%或更高精度电感;
  4. 焊接工艺:回流焊峰值温度≤260℃,回流时间≤30秒(符合SXN官方要求);
  5. 环境要求:工作温度范围-40℃~+85℃(参考规格书),避免极端温度。

SMMS1770-101M凭借紧凑尺寸、稳定电流承载能力,成为中功率电源电路的高性价比选择,适配多数通用电子设备的电源模块设计需求。

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