Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Viking(光颉)CSR0204DTCV1000是一款针对工业级精密电路、消费电子高密度设计开发的小型化金属膜电阻,凭借稳定的电气性能、宽温适应性与紧凑封装,成为电子设计中平衡精度、体积与可靠性的核心元件之一。
该电阻定位于中高精度、宽温工作的小型化应用场景,核心特性可总结为四点:
标准阻值为100Ω(常用电阻值,易与其他元件匹配),±0.5%的精度意味着实际阻值范围在99.5Ω至100.5Ω之间,相比普通碳膜电阻(通常±5%),能更精准地控制电路中的电流、电压分配,避免信号失真。
额定功率250mW,在0204封装下属于合理功率范围(一般0204金属膜电阻功率多在1/8W=125mW至1/4W=250mW之间),可稳定承载小电流电路(如100Ω下最大工作电流约50mA,(I=\sqrt{P/R}=\sqrt{0.25/100}=0.05A)),适配多数低功耗电路。
温度系数(TCR)±25ppm/℃是核心优势:假设环境温度从-55℃升至+155℃(温差210℃),阻值变化量为(210×25=5250μΩ=5.25mΩ),相对100Ω的变化率仅0.00525%,远低于普通电阻的温漂水平,确保极端温度下电路性能稳定。
-55℃至+155℃的温宽符合工业级标准,可应用于户外设备、车载电子、高温工业环境等场景,无需额外散热或温度补偿设计。
0204封装(英制尺寸:0.02英寸×0.04英寸,公制约0.6mm×0.8mm)是小型化电子设备的主流封装,体积仅为1206封装的1/4左右,可显著提升PCB布局密度,适合智能手机、智能穿戴、小型工业模块等对体积敏感的产品。
相比碳膜电阻,金属膜电阻通过真空镀膜+激光调阻工艺制造,具有:
该电阻的性能特点使其广泛适配以下场景:
Viking(光颉)作为全球知名电阻制造商,在精密电阻领域拥有20余年研发与生产经验,CSR0204DTCV1000通过以下品质管控:
总结:Viking CSR0204DTCV1000以高精度、低温漂、宽温可靠、小封装为核心优势,是工业、消费、汽车等领域精密电路设计的高性价比选择,能有效平衡性能与成本,提升产品竞争力。
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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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