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
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RK73H2ATTD6801F是日本KOA公司推出的通用型高精度厚膜片式电阻器,采用0805(英制)表面贴装封装,针对工业级温度范围与小功率电路设计,广泛适配消费电子、汽车电子、工业控制等领域的信号调节、分压、限流等基础应用场景。
该电阻属于KOA厚膜电阻系列中的经济型高精度型号,核心定位为:
±1%的精度等级经过批量生产一致性管控,避免因单批阻值偏差导致的电路性能波动,适合需要稳定分压、限流的信号电路。
±100ppm/℃的温度系数在厚膜电阻中属于较高稳定性级别,即使在极端温度(如-40℃低温或150℃高温)下,阻值变化仍在可接受范围内,无需额外温度补偿电路。
250mW额定功率下,厚膜工艺(丝网印刷+烧结)带来的电阻膜层附着力强、热稳定性好,长期工作(1000小时以上)阻值漂移率通常≤0.5%,远优于普通碳膜电阻。
通过KOA标准可靠性测试:
实际使用中建议将功率控制在额定值的50%-70%(即125mW-175mW),避免长期过热导致阻值漂移或失效(尤其是在高温环境下)。
厚膜电阻抗静电能力(通常≥2kV)优于薄膜电阻,但仍需在ESD防护环境下操作,避免静电击穿。
RK73H2ATTD6801F凭借其高性价比、宽温稳定性、通用兼容性,成为电子电路设计中基础电阻的优选型号之一,适用于对精度、可靠性有一定要求但无需超高端性能的多数场景。
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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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