WMSIC Electronic Components

VISHAY WSLP12062L000FEA

ModelWSLP12062L000FEA
Package1206
BrandVISHAY
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
VISHAY WSLP12062L000FEA
Type
VISHAY
Minimum package
4000 圆盘

Technical parameters

Power
1W
Electronic Component
Electronic Component
Electronic Component
VISHAY
Electronic Component
WSLP12062L000FEA
Electronic Component
1
Package
1206
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.036g
Electronic Component
2mΩ
Electronic Component
1
Electronic Component
BM0229251429
Operating Temperature
65℃~+170℃
Electronic Component
±275ppm/℃
Electronic Component
Electronic Component
Electronic Component
4000

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

WSLP12062L000FEA 产品概述

一、主要参数

WSLP12062L000FEA 为 VISHAY(威世)生产的贴片低阻值取样电阻(1206 封装),主要参数如下:

  • 阻值:2 mΩ
  • 精度:±1%
  • 额定功率:1 W(具体散热依赖 PCB 设计)
  • 温度系数(TCR):±275 ppm/℃
  • 工作温度范围:-65 ℃ ~ +170 ℃
  • 封装:1206(SMD)

二、产品定位与优势

该器件定位为电流检测/取样用低阻贴片电阻。2 mΩ 的极低阻值在不影响电路工作电压的情况下可实现高电流测量,1 W 的功率密度在 1206 小体积中兼顾了空间与散热能力;±1% 精度适合多数电源管理与测量场景。TCR ±275 ppm/℃ 表示随温度变化阻值有一定漂移,需在高精度场合配套温度补偿或选择差分测量方案。

三、典型应用

  • 电池管理系统(BMS)、充放电电流监测
  • DC-DC 转换器与电源模块的电流检测
  • 电机驱动与功率放大器过流保护
  • 电源分配与能耗统计测量

四、热与电气计算(参考)

理论最大直流电流 I = sqrt(P/R) ≈ sqrt(1 W / 0.002 Ω) ≈ 22.4 A(此值为热平衡理论值,实际允许电流受 PCB 铜箔面积、焊盘散热及环境温度影响,应按 PCB 工程师的热仿真与降额曲线取用)。由于 TCR 为 ±275 ppm/℃,温升 100 ℃ 会引起约 2.75% 的阻值漂移,显著高于 ±1% 初始公差,测量精度受温度影响需预先评估。

五、布局与安装建议

  • 推荐使用宽铜大焊盘并扩展散热铜箔以降低结温,提高持续电流能力。
  • 对于高精度电流测量,建议采用四端(Kelvin)测量方式或将取样电阻与测量端分开布局,避免引脚/焊盘压降影响测量。
  • 焊接时避免对元件施加机械应力,遵循厂商推荐的回流焊工艺参数。

六、可靠性与合规

VISHAY 品牌产品通常经过工业级可靠性验证,适用于宽温应用。产品通常满足无铅/RoHS 要求;具体合规证书请在选型阶段向供应商索取最新数据表与认证文件。

七、选型与注意事项

  • 若在高精度随温漂移敏感场合,考虑选用更低 TCR 或温度补偿方案;或采用并联多支以分担功率并降低单元温升(需计算并联不均流影响)。
  • 订购时以完整料号 WSLP12062L000FEA 下单,并与供应商确认最新库存、封装图与回流焊工艺规范。

总结:WSLP12062L000FEA 适合在空间受限但要求高电流检测的场景使用,需重视 PCB 散热设计与温度对测量精度的影响,配合合理的测量方法可获得稳定可靠的取样结果。

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