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RM04JTN472是大毅科技(Tai-Yi Technology) 推出的0402封装表面贴装(SMD)厚膜电阻,专为小型化、高密度贴装的电子设备设计。产品采用无铅厚膜工艺制造,符合RoHS 2.0、REACH等全球环保标准,兼顾成本与可靠性,是消费电子、IoT终端等领域的基础电阻优选方案。
0402封装为行业通用小型化规格,具体尺寸如下:
该封装支持高速贴装,可大幅提升PCB板的元件密度,适合手机、可穿戴设备等对体积敏感的产品。
标称阻值为4.7kΩ(标识代码“472”,即47×10²Ω),精度±5%(E24系列阻值公差,对应“J”档)。批量生产中阻值一致性优于标称精度,可减少电路调试复杂度。
温度系数为**±200ppm/℃**,表示在-55℃~+125℃范围内,阻值随温度变化的速率为每摄氏度±0.02%。举例:
-55℃~+125℃,覆盖消费电子(如户外IoT终端)、工业级基础应用(如车载辅助电路)的温度场景。
RM04JTN472的小封装、低功耗特性,使其适配以下场景:
大毅科技作为专业被动元器件制造商,RM04JTN472具备:
RM04JTN472凭借小封装、稳定的电气性能及高可靠性,成为小型化电子设备中基础电阻的高性价比选择,尤其适合对体积、成本敏感的电路设计。
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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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