WMSIC Electronic Components

SXN SMMS252010-2R2M Inductor SMMS252010

ModelSMMS252010-2R2M
Package1008
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 SMMS252010-2R2M
Type
SXN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SXN
Electronic Component
SMMS252010-2R2M
Electronic Component
1
Package
1008
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.058g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0265818005
Current
2.1A
Resistor(DCR)
70mΩ
Electronic Component
Electronic Component
Electronic Component
3000

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

SMMS252010-2R2M 功率电感产品概述

SMMS252010-2R2M是顺翔诺(SXN)推出的一款贴片式功率电感,专为小型化电子设备的电源管理电路设计,兼具小体积、合理电流承载能力与高效能特性,广泛适配消费电子、物联网终端等领域的中低功率场景。

一、产品标识与基本定位

该电感型号遵循行业通用命名规则:SMMS代表顺翔诺贴片功率电感系列;252010对应封装尺寸(结合产品描述为2×2.5mm贴片封装);2R2表示标称电感值为2.2微亨(μH);M为精度代码,对应±20%误差范围。作为一款SMD-2(双引脚贴片)电感,其核心定位是满足小型化设备的DC-DC转换、滤波等电源电路需求,平衡体积与性能。

二、核心电气参数详解

1. 电感值与精度

标称电感值为2.2μH,精度±20%,即实际电感值范围为1.76μH~2.64μH。该精度范围符合大多数电源电路的设计容差要求,无需额外高精度补偿,降低电路设计复杂度。

2. 电流特性

  • 额定电流(Is):2.1A:指电感在工作温度范围内,电感值下降不超过初始值30%时的最大连续电流,是电路设计中需重点匹配的负载电流上限。
  • 饱和电流(Isat):3A:指电感磁芯饱和时(电感值下降至初始值50%)的最大电流,可作为电路瞬间过载的安全阈值参考,避免磁芯饱和导致电路性能突变。

3. 直流电阻(DCR)

直流电阻为70mΩ,属于同体积功率电感中的低阻水平。低DCR可显著减少铜损(功率损耗P=I²·R),提升电源转换效率,尤其在小电流场景下(如1A负载),铜损仅约70mW,对设备续航影响极小。

4. 频率特性

基于功率电感的典型特性,SMMS252010-2R2M适配100kHz~5MHz的工作频率范围,可满足常见DC-DC降压转换器(如Buck电路)的频率需求。

三、封装与物理特性

1. 封装规格

采用SMD-2双引脚贴片封装,尺寸为2mm(长)×2.5mm(宽),厚度符合功率电感的常规设计(结合型号252010推测为1mm左右)。小体积设计使其可集成于0402(英制)或1005(公制)等小型贴片元件的布局中,适配高密度PCB设计。

2. 焊接兼容性

支持回流焊、波峰焊等自动化贴装工艺,焊接温度需遵循厂商规范(一般回流焊峰值温度≤245℃,时间≤10秒),确保封装与引脚的可靠性。

四、典型应用场景

SMMS252010-2R2M的参数与封装特性,使其广泛应用于以下场景:

  1. 便携式消费电子:智能手机、智能手表、蓝牙耳机的DC-DC降压电路(如5V转3.3V/1.5A);
  2. 物联网(IoT)终端:传感器节点、智能门锁的电源管理模块,满足低功耗与小体积需求;
  3. 小型电源模块:10W以内的开关电源(如USB-C充电器的辅助电源电路);
  4. 车载小型设备:车载蓝牙、行车记录仪的低功率电源电路(适配宽温度范围)。

五、产品优势总结

  1. 小体积高密度:2×2.5mm封装实现了电流承载与体积的平衡,适配当前电子设备的小型化趋势;
  2. 高效能低损耗:70mΩ低DCR减少铜损,提升电源转换效率,延长设备续航;
  3. 电流特性可靠:2.1A额定电流与3A饱和电流,满足中低功率负载的连续工作与瞬间过载需求;
  4. 易集成易生产:贴片封装支持自动化贴装,降低生产工艺难度,适合批量制造;
  5. 成本可控:±20%精度与常规封装,在保证性能的前提下控制了成本,适合中低端电子设备的性价比需求。

六、选型与使用注意事项

  1. 电流匹配:电路设计时,负载连续电流需≤2.1A,避免电感值下降影响输出电压稳定性;
  2. 温度考量:功率电感工作时会产生热量,需确保PCB布局预留散热空间,工作环境温度范围一般为-40℃~+85℃;
  3. 电感值容差:设计电路时需预留±20%的电感值变化空间,避免因电感值偏差导致电路纹波过大;
  4. 焊接规范:严格遵循厂商的焊接温度曲线,避免过热导致磁芯或引脚损坏。

综上,SMMS252010-2R2M是一款性能均衡、适配性强的贴片功率电感,可满足多数小型化电子设备的电源管理需求,是性价比与可靠性兼具的选型方案。

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