Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CRCW040239R0FKED是VISHAY(威世) 推出的一款高精度厚膜贴片电阻,属于0402封装系列,专为小功率、高密度PCB设计场景打造。该电阻采用成熟的厚膜工艺制造,兼顾成本优势与性能稳定性,广泛应用于工业控制、消费电子、汽车电子等领域。
额定阻值为39Ω,精度等级达**±1%**,可满足大多数电路对阻值偏差的严格要求——无需额外校准即可实现信号放大、滤波等功能的稳定输出,避免因阻值偏差导致的电路性能波动。
该电阻采用0402封装(英制尺寸,对应公制1005),物理尺寸为1.0mm×0.5mm,具有以下优势:
结合性能参数,CRCW040239R0FKED适用于以下场景:
VISHAY作为全球知名电子元器件厂商,CRCW040239R0FKED具备以下可靠性优势:
实际应用中建议将电阻功率限制在额定值的80%以内(即≤50mW),避免长期过载导致阻值漂移或失效。
厚膜贴片电阻对静电敏感,操作时需佩戴防静电手环,使用防静电工作台与包装,避免静电放电击穿电阻。
未焊接电阻应存储在温度1535℃、相对湿度40%60%的干燥环境中,存储周期不超过12个月;开封后建议1个月内使用完毕,避免受潮影响性能。
综上,CRCW040239R0FKED凭借高精度、宽温范围、小体积等优势,成为小功率电路设计的理想选择,可满足多领域对稳定可靠电阻元件的需求。
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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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