Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
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:
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。
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。
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。
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。
Request for quote
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products