WMSIC Electronic Components

Sunlord WPN4012H2R2MT

ModelWPN4012H2R2MT
PackageSMD
BrandSUNLORD
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
Sunlord WPN4012H2R2MT
Type
SUNLORD
Minimum package
4500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SUNLORD
Electronic Component
WPN4012H2R2MT
Electronic Component
1
Package
SMD
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
0.158g
Inductor
2.2uH
Electronic Component
1
Electronic Component
BM0258491109
Current
2.7A
Resistor(DCR)
72mΩ
Electronic Component
Electronic Component
Electronic Component
4500
and Current(Isat)
2.8A

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

WPN4012H2R2MT 产品概述

一、产品简介

WPN4012H2R2MT 是顺络(Sunlord)推出的一款功率电感,封装为 SMD,典型外形尺寸为 4.0 × 4.0 mm,面向开关电源与点式负载供电(POL)场合的电流滤波与储能应用。该器件以较小的占板面积提供 2.2 μH 的电感值,并兼顾较高的额定电流能力,适合高密度电源模组设计。

二、主要参数(核心规格)

  • 电感值:2.2 μH(公差 ±20%)
  • 额定电流:2.7 A(Irated)
  • 饱和电流:2.8 A(Isat,器件开始显著降感的电流点)
  • 直流电阻(DCR):72 mΩ
  • 封装:SMD,4 × 4 mm
  • 品牌:Sunlord(顺络)

三、产品特点

  • 小型化封装,适合高密度 PCB 布局。
  • 较高的额定电流与饱和电流,能胜任中等功率的降压转换器和点负载供电。
  • 低频储能与纹波抑制能力良好,适合作为开关电源的输出滤波电感。
  • 直流电阻较低,有利于降低铜损与发热,提升转换效率。

四、典型应用场景

  • DC-DC 降压模块(同步/非同步)输出侧滤波
  • 主板、通信设备、工业控制与消费电子的点负载供电(POL)
  • 电源模组、充电设备及电源管理子系统

五、布板与可靠性建议

  • 尽量将电感放置在开关器件与输出电容之间的最短路径上,减小环路面积以降低 EMI。
  • 为控制温升,请合理评估 I^2·R 损耗(损耗近似为 I^2 × DCR);在接近额定电流或长期大电流工况下应验证温度上升。
  • 注意电感的饱和特性:当工作电流接近或超过 Isat(2.8 A)时,电感量会显著下降,影响输出纹波与稳定性,应在设计余量范围内选型。
  • 焊接与回流工艺按厂商推荐曲线执行,避免超温或过长时间的回流以保持器件可靠性。

六、选型注意事项与替代建议

  • 由于标称电感公差为 ±20%,在对纹波电流和控制环路要求严格的场合,建议在原型上测量实际感值并调整参数。
  • 若需更高电流能力或更低 DCR,可考虑同系列更大规格或额定电流更高的型号;在空间受限但要求更高电感值时,可对比其他封装或多绕组方案。

WPN4012H2R2MT 在尺寸、载流能力与损耗之间取得平衡,适合对板面空间与效率有一定要求的中功率电源应用。选型时建议结合实际纹波电流、温升测试与系统余量共同评估。

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