WMSIC Electronic Components

PROD PSTMAA4030-4R7MB PSTMAA4030

ModelPSTMAA4030-4R7MB
PackageSMD,4.1x4.1mm
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 PSTMAA4030-4R7MB
Type
PROD
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PROD
Electronic Component
PSTMAA4030-4R7MB
Electronic Component
1
Package
SMD,4.1x4.1mm
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.462g
Inductor
4.7uH
Electronic Component
1
Electronic Component
BM0265279711
Current
6A
Resistor(DCR)
42mΩ
Electronic Component
Electronic Component
Electronic Component
2000

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

PSTMAA4030-4R7MB 一体成型扁平线电感产品概述

一、产品基本信息

PSTMAA4030-4R7MB是PROD谱罗德推出的一款中功率贴片电感,采用扁平线绕制+一体成型磁芯的复合结构,封装规格为SMD 4.1×4.1mm,专为高密度PCB布局和高效电源转换场景设计,兼顾小型化与高电流承载能力。

二、核心技术特性

  1. 一体成型磁芯:采用磁粉芯压制工艺,磁芯与线圈紧密结合,相比传统绕线电感,具有低EMI(电磁干扰)、低损耗、高抗振性三大优势——可有效抑制电路电磁辐射,适配敏感电子设备;减少磁芯损耗,提升电源效率;避免磁芯松动,满足运输与使用中的振动要求。
  2. 扁平线设计:摒弃传统圆线,采用扁平铜线绕制,显著提升导线表面积,降低集肤效应(高频下电流集中在导体表面)的影响,同时减少直流电阻(DCR),强化电流承载能力。
  3. 小型化封装:4.1×4.1mm的贴片封装体积紧凑,可在有限PCB空间内实现多电感并联或高密度布局,完美适配便携设备的轻薄化需求。

三、关键性能参数详解

参数名称 规格参数 实际设计价值 电感值 4.7uH ±20% 常用中功率电感值,适配DC-DC降压/升压转换、电源滤波等核心场景 额定电流(Ir) 6A 工作温度范围内,电感值变化≤10%的最大允许电流,满足典型中功率设备的供电需求 饱和电流(Isat) 7.8A 磁芯饱和临界电流(电感值下降至额定值的30%),提供30%左右的安全裕量,避免过载失效 直流电阻(DCR) 42mΩ(典型值) 低铜损设计,每1A电流仅损耗0.042W,减少设备发热,提升电源转换效率1%-2% 封装尺寸 SMD 4.1×4.1mm(长×宽) 兼容主流PCB设计(如Altium、KiCad),适配回流焊工艺,无需特殊制程要求

四、典型应用场景

PSTMAA4030-4R7MB的性能参数与结构特性,使其广泛覆盖以下场景:

  1. 便携电子设备:智能手机、平板电脑、智能手表的主板电源模块(DC-DC降压转换器),满足电池供电下的中功率需求(如CPU、显示屏供电)。
  2. 移动电源/快充:快充电路中的电感滤波与储能,低DCR可提升充电效率,小型化封装适配产品轻薄化设计。
  3. IoT与智能家居:智能音箱、路由器、传感器节点的电源管理电路,低EMI特性避免对无线信号的干扰,保障通信稳定性。
  4. 小型工业控制:微型PLC、电机驱动模块的电源滤波,高抗振性适配工业环境的振动与冲击要求。

五、设计优势与价值

  1. 效率提升:42mΩ的低DCR可显著降低铜损,相比同尺寸圆线电感,电源转换效率提升1%-2%,减少设备发热,延长电池续航时间(以5A工作电流为例,年损耗减少约1.8kWh)。
  2. 裕量充足:额定电流6A、饱和电流7.8A,实际工作电流控制在5A以内即可满足安全要求,避免磁芯饱和导致的电感值骤降,保障电路稳定性。
  3. 可靠性高:一体成型结构无磁芯松动风险,抗振性达到IEC 60068-2-6标准(振动频率10-2000Hz,加速度98m/s²),适合运输与使用中的复杂环境。
  4. 兼容性强:SMD封装兼容主流PCB设计软件,回流焊工艺与常规贴片元件一致(峰值温度245℃±5℃,时间≤10s),降低生产工艺复杂度。

六、选型与使用注意事项

  1. 电流匹配:实际工作电流需低于额定电流(建议≤5A),避免长期过载导致电感性能衰减。
  2. 精度适配:±20%的精度适用于大多数电源场景,若需高精度滤波(如射频电路),需确认是否符合设计要求。
  3. 温度范围:产品工作温度为-40℃~125℃,若设备工作环境温度超过125℃,需额外散热设计。
  4. 焊接工艺:需遵循谱罗德官方推荐的回流焊参数,避免高温损坏电感线圈与磁芯。

综上,PSTMAA4030-4R7MB凭借小型化、低损耗、高电流承载的特性,成为便携电子、IoT等领域中功率电源设计的优选电感方案。

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