WMSIC Electronic Components

TAIYO YUDEN NRS4018T4R7MDGJV Inductor NRS4018T4R7MDGJV

ModelNRS4018T4R7MDGJV
PackageSMD,4x4mm
BrandTAIYO YUDEN
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TAIYO YUDEN NRS4018T4R7MDGJV
Type
TAIYO YUDEN
Minimum package
3500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TAIYO YUDEN
Electronic Component
NRS4018T4R7MDGJV
Electronic Component
1
Package
SMD,4x4mm
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.015g
Inductor
4.7uH
Electronic Component
1
Electronic Component
BM0231139242
Electronic Component
AEC-Q200
Current
1.7A
Resistor(DCR)
84mΩ
Electronic Component
Electronic Component
Electronic Component
3500

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

NRS4018T4R7MDGJV 产品概述

一、产品简介

NRS4018T4R7MDGJV 是太陽誘電(Taiyo Yuden)出品的一款片式功率电感,规格为 4.7 μH,公差 ±20%,额定电流(Idc)1.7 A,饱和电流(Isat)2.0 A,直流电阻(DCR)84 mΩ,车规等级 AEC‑Q200,封装为 SMD,尺寸 4 × 4 mm。该器件针对开关电源及功率滤波应用优化,兼顾高电流能力与体积紧凑的特性。

二、主要特性

  • 电感值:4.7 μH,公差 ±20%,适合中小功率环路的能量储存与滤波需求。
  • 电流能力:额定电流 1.7 A,饱和电流 2.0 A,在靠近饱和区前能维持较稳定的电感量。
  • 低损耗:DCR 约 84 mΩ,有助于降低铜损,提高转换效率。
  • 车规可靠性:满足 AEC‑Q200 要求,适用于汽车电子及高可靠性场合。
  • 封装优势:SMD 封装、4 × 4 mm 小尺寸,便于 PCB 高密度布局与自动化贴装。

三、典型应用场景

  • 汽车电子中的降压(buck)与升压(boost)DC‑DC 转换器;
  • 工业与通信设备中的开关电源、点‑对‑点供电模块;
  • 电源滤波与输入/输出去耦,抑制高频干扰;
  • 便携设备或模块化电源中要求体积小、可靠性高的功率磁件。

四、使用注意事项与布局建议

  • 电流裕量:建议在选型时使实际工作电流显著低于额定电流(例如留 20–30% 余量),以避免在纹波或瞬态时进入饱和区。
  • DC 偏置影响:在较大直流偏置下,电感量会下降。对精确电感值有要求的设计请在实际工作电流下验证电感值或参考厂方曲线。
  • 布局:将电感尽量靠近开关 MOSFET 与电容,缩短信号回路面积,减小 EMI;输入/输出电容应紧邻电感以降低纹波。
  • 散热与焊接:虽然为 SMD 封装,长时间大电流会产生热量,必要时采用加大铜箔、通孔散热或热垫设计;遵循制造商推荐的回流焊温度曲线进行贴装。

五、可靠性、封装与储存

  • AEC‑Q200 认证表明器件通过了包括热循环、湿热、机械应力等汽车级可靠性验证,适合严苛环境使用。
  • SMD 4×4 mm 封装适合自动贴装与回流焊工艺,常见按带装(tape & reel)供应,便于量产。
  • 储存与处理应遵守一般无铅回流与潮湿敏感元件(MSL)规范,避免长时间暴露在高湿环境以防焊接缺陷。

六、选型建议

  • 若系统工作电流长期接近或超过 1.7 A,应考虑选择额定电流和 Isat 更高的型号以提高可靠性与余量。
  • 对效率要求高的系统,可比较同尺寸下不同品牌/系列的 DCR 与磁芯材料,选择损耗更低的方案。
  • 在车规或工业级场合优先使用具有 AEC‑Q200 认证的器件,以满足长期可靠性需求。

总结:NRS4018T4R7MDGJV 以其 4.7 μH 的电感值、1.7 A 的额定电流、2.0 A 的饱和电流及 AEC‑Q200 车规等级,适合小型化、高可靠性的电源与滤波应用。在实际设计中应关注 DC 偏置对电感的影响、工作电流裕量以及合理的 PCB 布局与热管理,以获得最佳性能与长期可靠性。

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