Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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RK73H1JTTD4702F是日本KOA公司推出的0603封装厚膜贴片电阻,针对消费电子、工业控制、通信设备等领域的通用电路设计,兼顾小体积、稳定性能与宽温适应性,是中精度电阻应用的典型选型。
KOA作为全球知名被动元器件制造商,专注电阻研发70余年,以工艺稳定性、参数一致性著称,产品覆盖汽车、工业、消费电子等严苛场景。RK73H1JTTD4702F继承了KOA的厚膜电阻工艺优势,批量生产阻值偏差控制精准。
该电阻采用0603英寸封装(公制1608,即1.6mm×0.8mm),属于小型贴片封装,适配主流自动化贴装设备,可有效缩小PCB面积,尤其适合便携式设备(如智能手机、智能穿戴)的高密度布局,封装厚度约0.45mm,满足薄型化设计需求。
RK73H1JTTD4702F的参数平衡了精度、功率与体积,核心指标如下:
RK73H1JTTD4702F适配多领域通用电路:
工作温度**-55℃+155℃**,远超民用电阻(-40℃+85℃),适应寒冷地区、高温环境(靠近CPU/电源模块)。
采用厚膜烧结工艺,电阻膜层与陶瓷基板结合牢固,抗振动/冲击能力强(符合JIS C 5102标准),长期阻值漂移<0.1%/1000小时。
符合RoHS 2.0及无铅工艺,适配欧盟、中国市场环保产品设计,兼容回流焊/波峰焊工艺。
需同时满足:0603封装、47kΩ阻值、≤±1%精度、≥100mW功率、≤±100ppm/℃温系。推荐同品牌替代型号RK73H1JTTD4702G(±0.5%精度)。
回流焊峰值温度245℃±5℃,时间≤10秒,避免过温损坏膜层。
RK73H1JTTD4702F以均衡性能、稳定可靠性,成为中精度小体积电阻的高性价比选型,覆盖多领域通用电路需求。
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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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