WMSIC Electronic Components

Sunlord SPH4018H3R3MT

ModelSPH4018H3R3MT
PackageSMD
BrandSUNLORD
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
Sunlord SPH4018H3R3MT
Type
SUNLORD
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SUNLORD
Electronic Component
SPH4018H3R3MT
Electronic Component
1
Package
SMD
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.008g
Inductor
3.3uH
Electronic Component
1
Electronic Component
BM0264536322
Current
2A
Resistor(DCR)
66mΩ
Electronic Component
Electronic Component
Electronic Component
3000
and Current(Isat)
2.3A

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

SPH4018H3R3MT 功率电感产品概述

一、产品定位与品牌背景

SPH4018H3R3MT是国内被动元件龙头厂商顺络电子(Sunlord) 推出的一款表面贴装(SMD)功率电感,核心面向小型化、高集成度电子设备的电源管理系统。顺络电子深耕电感领域20余年,产品覆盖消费电子、汽车电子、工业控制等多领域,以高可靠性、性能一致性著称;这款电感针对“小封装承载大电流”场景优化,是中低端到中端电子设备的高性价比选型。

二、核心电气参数解析

该电感的关键参数直接决定适用场景,具体解析如下:

  1. 电感值与精度:标称电感值为3.3μH,精度±20%——满足大多数DC-DC转换器、滤波电路的常规精度需求,无需额外校准;
  2. 电流特性:
    • 额定电流(Irms):2A(持续工作电流上限,超此值可能导致长期性能衰减);
    • 饱和电流(Isat):2.3A(电感值下降30%时的峰值电流,设计时需控制峰值电流在此范围内,避免输出电压波动);
  3. 直流电阻(DCR):仅66mΩ——低DCR意味着直流损耗小,可提升电源转换效率(减少发热);
  4. 封装规格:4×4mm SMD贴片封装,体积紧凑,适配小型化设备的PCB布局。

三、封装与物理特性

  1. 尺寸与形态:4mm×4mm方形贴片封装,常规高度约1.8mm(顺络同系列典型值),属于“微型功率电感”范畴,可节省50%以上的PCB空间;
  2. 焊接兼容性:支持回流焊工艺,引脚采用镀锡设计,适配自动化贴装流程,虚焊风险低;
  3. 温度适应性:工作温度范围为**-40℃至125℃**(顺络电感常规宽温特性),可适应消费电子的日常环境(如手机充电时的高温),甚至部分工业级场景;
  4. 可靠性设计:采用“磁芯+线圈一体化”结构,抗振动(符合IEC 60068-2-6标准)、耐冲击性能优异,适合量产应用。

四、典型应用场景

该电感的性能特点使其广泛适用于以下场景:

  1. 消费电子电源管理:手机、平板、智能手表的DC-DC降压/升压转换器(为CPU、内存供电);
  2. 便携式设备:移动电源、蓝牙耳机、智能手环的充电电路与供电模块(小体积+大电流需求);
  3. 智能家居:智能音箱、摄像头、温控器的电源滤波/稳压电路;
  4. 小型工业控制:小型PLC、传感器模块的辅助电源部分(紧凑布局需求)。

五、产品优势

  1. 小封装与高电流平衡:4×4mm封装实现2A额定电流,在同类微型电感中表现突出,解决了“小型化设备电流供给不足”的痛点;
  2. 低损耗高效率:66mΩ的低DCR减少了直流功率损耗(如2A工作时损耗仅0.264W),提升电源转换效率5%以上;
  3. 性能一致性:顺络自动化生产工艺保证参数偏差控制在±20%以内,批次差异小,降低终端产品良率风险;
  4. 成本效益:性能均衡且性价比高,无需为过剩性能支付额外成本,适合中低端电子设备的量产需求。

六、选型与使用注意事项

  1. 电流匹配:电路持续电流≤2A,峰值电流≤2.3A(若需更高电流,需选更大封装或更高额定电流的型号,如顺络SPH5020系列);
  2. 精度适配:±20%精度仅适合常规功率电路,若需高精度(如±10%),需选择顺络“高精度系列”电感;
  3. 焊接工艺:回流焊峰值温度≤245℃(顺络推荐),避免过温导致磁芯开裂;
  4. 散热设计:大电流工作时,需在电感周围预留散热空间(或采用铜箔铺地),避免局部过热;
  5. 存储条件:存储于常温干燥环境(25℃±5℃,湿度≤60%),避免受潮影响焊接性能。

综上,SPH4018H3R3MT是一款“小封装、高电流、低损耗”的高性价比功率电感,适配多类小型化电子设备的电源管理需求,是顺络电子的经典微型电感型号之一。

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