WMSIC Electronic Components

BOURNS SRF0703-100M

ModelSRF0703-100M
PackageSMD-4P,7.6x7.6mm
BrandBOURNS
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
BOURNS SRF0703-100M
Type
BOURNS
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
SRF0703-100M
Electronic Component
1
Package
SMD-4P,7.6x7.6mm
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.803g
Inductor
10uH
Electronic Component
1
Electronic Component
BM0264532932
Current
2.08A
Resistor(DCR)
82.6mΩ
Electronic Component
Electronic Component
Electronic Component
1500
and Current(Isat)
2.47A

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

SRF0703-100M 产品概述

一、产品简介

SRF0703-100M 是 BOURNS 推出的表面贴装功率电感,额定电感值 10 µH(精度 ±20%),适用于中小功率开关电源和电源滤波场合。封装为 SMD-4P,外形尺寸 7.6 × 7.6 mm,结构紧凑,便于自动贴片与回流焊工艺。

二、主要参数

  • 电感值:10 µH,公差 ±20%
  • 额定电流:2.08 A(在规定温升与电感衰减下)
  • 饱和电流(Isat):2.47 A(电感降至初始值的 30% 时)
  • 直流电阻(DCR):82.6 mΩ
  • 封装:SMD-4P,7.6 × 7.6 mm
  • 品牌:BOURNS
  • 类型:功率电感 / 贴片电感

三、性能特点

  • 良好的电流承载能力:额定电流 2.08 A,可满足多数降压/升压转换器输出滤波与储能需求;Isat 2.47 A 表明在短时或浪涌条件下仍能维持较高的电感值。
  • 较低直流电阻:82.6 mΩ 在功率损耗和热量控制方面有利,有助于提高转换效率。
  • 紧凑封装:7.6×7.6 mm 的 SMD-4P 结构兼顾体积与散热,适合自动化生产与高密度布局。

四、典型应用

  • 开关电源(降压/升压/SEPIC)中的能量储存元件
  • 输入/输出电源滤波,减少纹波与电磁干扰
  • 汽车电子、工业控制板、通信设备的电源模块
  • LED 驱动、电池管理系统(BMS)的去耦与滤波

五、选型与设计注意事项

  • 电流裕度:额定电流为 2.08 A,建议根据工作温度与环境留有 20–30% 余量,防止长期热应力导致性能衰减。
  • 饱和与直流偏置:在高直流偏置下电感会下降,若电路中存在大直流分量,应以 Isat 为界,避免工作点进入饱和区。
  • 损耗与温升:依据 DCR 计算 I²R 损耗,评估温升与散热路径;必要时在 PCB 上增加散热铜箔或优化空气流通。
  • 纹波电流:估算纹波电流幅值,确认该电感在交流分量下的损耗与温升是否满足设计要求。

六、布板与测试建议

  • 尽量缩短电感与开关管/电容之间的环路长度,以降低寄生电感与辐射。
  • 采用对称走线与适当地平面以提高散热与降低 EMI。
  • 在样机阶段进行温升、频率响应与饱和测试,验证在最大预期工作电流下电感值与温度变化情况。

七、可靠性与兼容性

BOURNS 元件通常通过工业级可靠性测试。项目导入时应参考官方数据手册的温度曲线、频率响应与寿命试验结果,确保满足汽车或工业等高可靠性场景的具体认证要求。

八、结论

SRF0703-100M(10 µH,±20%)以其适中的电流能力、较低 DCR 和紧凑封装,适合高密度电源模块中的能量储存与滤波应用。选型时需关注实际工作电流、温升与饱和特性,合理留有裕度并优化 PCB 布局,以确保长期稳定运行。若需更详细的频率特性与温升曲线,建议参考 BOURNS 官方数据手册或向供应商索取样品进行验证。

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