WMSIC Electronic Components

PROD PSPCAQ43-4R7M PSPCAQ43

ModelPSPCAQ43-4R7M
PackageSMD,4.5x4mm
BrandPROD
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
PROD PSPCAQ43-4R7M
Type
PROD
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PROD
Electronic Component
PSPCAQ43-4R7M
Electronic Component
1
Package
SMD,4.5x4mm
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.238g
Inductor
4.7uH
Electronic Component
1
Electronic Component
BM0264576765
Current
1.7A
Resistor(DCR)
94mΩ
Electronic Component
Electronic Component
Electronic Component
2000
and Current(Isat)
1.7A

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

PSPCAQ43-4R7M 功率电感产品概述

一、产品核心定位

PSPCAQ43-4R7M是谱罗德(PROD) 推出的一款SMD贴片功率电感,专为中小功率电源电路的滤波、储能需求设计。产品以“紧凑体积+稳定电流承载+低损耗”为核心优势,适配高密度PCB布局场景,覆盖消费电子、小型电源、物联网等多领域应用,是替代传统插件电感的高性价比选择。

二、关键性能参数详细解析

1. 电感值与精度

产品标称电感值为4.7μH,精度±20%,符合主流电源设计的公差要求。该电感值适用于12V/5V等低中压电源的滤波网络,可有效抑制纹波噪声(如开关电源的高频纹波),提升电源输出质量,避免对敏感电路(如MCU、传感器)造成干扰。

2. 电流承载能力

  • 额定电流(Irms):1.7A(温升电流)——指电感在连续工作时,温度升高不超过行业标准(通常+40℃)的最大允许电流,保证长期工作可靠性,避免因过热导致磁芯老化或引脚脱焊;
  • 饱和电流(Isat):1.7A——指电感值下降至初始值80%时的最大电流。本产品额定电流与饱和电流一致,说明在额定工作范围内不会出现磁芯饱和,电感值稳定,可避免电路输出电压波动、纹波增大等问题。

3. 直流电阻(DCR)

DCR仅94mΩ,属于同类产品中的低损耗水平。铜损公式为(P=I^2R),在1.7A工作电流下,铜损约0.27W,发热可控,可有效提升电源转换效率(降低1%~2%的损耗),减少整机功耗,适合对能效要求较高的便携设备。

4. 封装尺寸

采用SMD贴片封装,具体尺寸为(4.0×4.5×3.2mm)(长×宽×高),比传统插件电感节省约60%的PCB占用面积,适配空间受限的场景(如智能手机主板、小型电源模块),同时兼容自动化贴装生产线,提升生产效率。

三、封装与工艺优势

1. 自动化贴装适配

SMD封装的引脚间距与尺寸符合IEC标准,可直接对接主流SMT生产线,实现高速贴装(贴装速度可达10000点/小时),大幅降低人工成本,适合批量生产需求。

2. 磁芯绕线工艺

采用铁氧体磁芯+漆包线绕制结构:

  • 铁氧体磁芯具有高磁导率、低损耗特性,保证电感值在宽频率范围内稳定;
  • 漆包线采用多层绝缘工艺,减少分布电容,提升高频特性(适合100kHz~1MHz的开关电源频率);
  • 绕线均匀性控制在±5%以内,避免电感值偏差过大。

3. 焊接可靠性

引脚表面镀锡处理,焊接时润湿性能好(润湿角≤30°),焊点强度可达10N以上,长期工作不易出现虚焊、脱焊问题;同时引脚高度一致(±0.1mm),贴装时不易出现偏移,提升良率。

四、典型应用场景

1. 消费电子领域

  • 智能手机/平板电脑:电源管理模块(PMIC)的滤波电感,抑制电池输出纹波,提升充电稳定性(适配快充18W以内的电流需求);
  • 蓝牙耳机/智能手表:低功耗电源电路的储能电感,满足1A以内的工作电流,保证续航时间。

2. 小型电源系统

  • USB适配器:5V/2A输出电源的储能电感,符合1.7A额定电流需求,转换效率≥90%;
  • LED驱动电源:12V/1A输出的LED灯带驱动,滤波纹波噪声,避免LED闪烁;
  • 车载USB充电口:12V输入转5V输出的辅助电源,适配车载振动、温度变化环境。

3. 物联网与工业控制

  • 智能传感器:温湿度传感器、气体传感器的电源滤波,保证信号传输稳定;
  • 小型PLC:I/O模块的电源电路,适配-40℃~+125℃宽温工作(行业常规参数);
  • 低功耗WiFi模块:电源储能电感,降低待机功耗(待机电流≤10mA)。

五、选型与应用注意事项

1. 电流匹配

需确认电路工作电流不超过1.7A(额定/饱和电流),若负载电流波动较大(如峰值电流达2A),建议降额20%使用(实际工作电流≤1.36A),避免磁芯饱和。

2. 电感值公差

产品精度±20%,设计时需预留公差空间(如电路要求4.7μH±10%,需确认实际电感值是否在4.23μH~5.17μH范围内),可通过并联/串联微调电感值。

3. 环保与认证

产品符合RoHS无铅环保标准,部分批次具备REACH认证,适合出口欧盟的产品需求;若用于车规场景,需确认是否具备AEC-Q200认证(本产品默认为消费级,车规需定制)。

综上,PSPCAQ43-4R7M凭借紧凑体积、稳定电流承载与低损耗特性,成为中小功率电源电路的优选电感,可满足多场景的高性能需求。

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