WMSIC Electronic Components

YJYCOIN YSPI0518S-1R0M YSPI0518S

ModelYSPI0518S-1R0M
PackageSMD,5.4x5.2mm
BrandYJYCOIN
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
YJYCOIN YSPI0518S-1R0M
Type
YJYCOIN
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJYCOIN
Electronic Component
YSPI0518S-1R0M
Electronic Component
1
Package
SMD,5.4x5.2mm
Type
Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.402g
Inductor
1uH
Electronic Component
1
Electronic Component
BM0264356857
Current
8A
Resistor(DCR)
17mΩ
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.

YSPI0518S-1R0M 产品概述

一、产品简介

YSPI0518S-1R0M 是 YJYCOIN(益嘉源)推出的一款一体成型贴片电感,面向中高电流开关电源与电源滤波场景设计。该器件以低直流电阻、较高的额定电流和紧凑的SMD封装为特点,适合集成在降压转换器、点对点电源、功率管理模块等空间受限但对传导损耗和温升有一定要求的电路中。

二、主要规格参数

  • 电感值:1.0 μH(公差 ±20%)
  • 额定电流(温升电流):8.0 A
  • 饱和电流(Isat):9.0 A
  • 直流电阻(DCR):17 mΩ Max.
  • 类型:一体成型电感(SMD)
  • 封装尺寸:5.4 × 5.2 mm
  • 品牌:YJYCOIN(益嘉源)

三、关键特性与优势

  • 低DCR:最大17 mΩ 的直流电阻有助于降低导通损耗,提高效率,特别适合高电流的DC–DC转换应用。
  • 较高额定电流:8 A 的温升电流确保在常规工作条件下电感不会因温升而发生性能退化;9 A 的饱和电流在冲击或突发负载下能够保证磁芯不过饱和,维持电感特性。
  • 一体成型结构:机械强度好,适合自动化贴装及回流焊工艺,可靠性高且抗振动性能优秀。
  • 紧凑封装:5.4 × 5.2 mm 的占板面积适合多种中密度布局,兼顾功率密度与散热性能。

四、典型应用场景

  • 开关稳压器:同步降压(Buck)/ 升压(Boost)变换器中的输出滤波或储能元件。
  • 电源管理模块(PMIC):为SoC、FPGA、DSP等器件提供点对点电源。
  • 通信设备与消费电子:路由器、机顶盒、平板、笔记本电源模块等。
  • 工业与嵌入式系统:对体积与效率有要求的工业电源和电机驱动前端滤波。

五、布局与使用建议

  • 电流承载与热管理:在设计时应以温升电流(8 A)作为持续工作电流的参考值,对于长时间高负载或重脉冲场景建议适当降额。避免长期工作在接近饱和电流(9 A)的位置,以免电感量下降影响转换器稳定性。
  • 布局原则:将电感放置于开关器件与输出电容之间,保证开关环路短且阻抗低。引脚间走线尽量短且宽,以降低寄生阻抗与附加温升。
  • 散热建议:在器件附近使用较大的铜箔或地/电源平面以利散热;必要时在封装下方或附近布置过孔连接到内层或底层散热层。
  • 焊接与可靠性:遵循厂商推荐的回流焊温度曲线,避免反复高温循环。贴片后应进行足够的清洁与目视检查,确保焊点完整。

六、封装与可靠性

YSPI0518S-1R0M 采用SMD一体成型封装,尺寸 5.4 × 5.2 mm,便于自动贴装与回流焊接。其机械结构适合抗震动、抗冲击的工业环境。建议在批量使用前进行样品的温升测试、振动和热循环验证,以确认在目标应用下的长期可靠性。

七、选型要点与注意事项

  • 电感值公差 ±20%:在精密滤波或谐振电路中需注意电感容差对频率或滤波特性的影响。
  • 电流降额:为保证长期可靠性,建议持续工作电流低于温升电流的上限,且尽量留有裕量以应对环境温度上升和PCB散热限制。
  • 饱和与瞬态:若系统存在较大启动电流或短时冲击,需验证在冲击下电感不会进入深度饱和导致电流失控。
  • 兼容性检查:在实际设计前,建议获取厂商数据手册或样品,完成电感频率响应、直流电阻、温升曲线等测试,确保满足具体应用的电气与热性能要求。

结语:YSPI0518S-1R0M 以其较低的DCR、较高的电流承载能力和紧凑封装,适合用于中高电流的开关电源与电源管理场景。合理的布局、充分的热管理和适当的电流降额是发挥该器件性能并保证长期可靠性的关键。若需更详细的温升曲线、频率特性或回流焊工艺参数,建议向 YJYCOIN 获取完整数据手册与可靠性报告。

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