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.
该产品为松下电子推出的薄膜贴片电阻,属于ERA3AEB系列高精度型号。采用0603英制贴片封装(对应公制尺寸1.6mm×0.8mm×0.45mm),产品代码“ERA3AEB5491V”中:
额定阻值5.49kΩ,精度等级±0.1%——属于精密电阻范畴,无需额外校准即可满足信号调理、分压网络等场景的准确控制需求。
25℃环境下额定功率100mW,是0603封装贴片电阻的典型功率规格,适配低功耗电路(如传感器前端、小型控制器)的单电阻功耗要求。
±25ppm/℃,即温度每变化1℃,阻值变化量约为±0.137Ω(5.49kΩ×25×10⁻⁶)。相比厚膜电阻(通常50~100ppm/℃),温漂稳定性提升一倍以上,可适应温度波动较大的环境。
-55℃至+155℃,覆盖工业级宽温标准,可稳定工作于户外设备、高温车间等极端温度场景。
采用真空溅射技术制备电阻膜,相比厚膜印刷工艺:
符合RoHS 2.0、REACH等环保指令,无铅无卤,适配绿色电子产品设计要求。
该产品以“高精度、宽温稳、小体积”为核心优势,是工业控制、通信、医疗等领域精密电路设计的常用元件。
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.
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