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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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RMS12FT3301是大毅科技推出的一款1206封装厚膜贴片电阻,专为中小功率电子电路设计,具备阻值稳定、精度适中、宽温适应性强等特点,广泛应用于工业控制、消费电子、汽车电子等领域。
该电阻属于常规功率型贴片电阻系列,型号命名对应核心参数:
阻值固定为3.3kΩ,精度等级±1%,满足多数工业级电路的阻抗匹配、分压限流需求(如传感器信号调理、电源反馈网络等),无需额外校准即可保证基本性能稳定。
额定功率250mW,是1206封装的主流功率等级,适配中小信号电路(如单片机I/O口限流、模拟电路偏置);额定工作电压200V,但实际工作需结合功率限制:( U \leq \sqrt{P \times R} \approx 28.7V ),避免过载损坏。
温度系数**±100ppm/℃**,即温度每变化1℃,阻值变化±0.01%。在-55℃~+155℃宽温范围内,阻值漂移控制在可接受范围(如155℃时相对于25℃的阻值变化约±1.3%),适合户外、车载等温度波动场景。
覆盖**-55℃+155℃**,符合工业级(-40℃+85℃扩展)和汽车电子(部分宽温需求)的环境要求,可在极端温度下稳定工作。
1206封装尺寸紧凑,便于高密度PCB布局,同时保留足够的功率承载能力,平衡了电路集成度与性能,适合批量生产中的自动化组装。
采用丝网印刷、高温烧结工艺制备电阻层,相比薄膜电阻成本更低,抗脉冲能力更强;端子采用镀锡/镀镍材料,可焊性优异,无铅焊接兼容性好,减少焊接缺陷(如虚焊、冷焊)。
大毅科技对该产品实施严格的质量管控:
该产品可批量供应,封装形式为卷盘装(通常10000pcs/盘),适配主流SMT贴片机;若需更高功率(如500mW)或精度(如±0.1%)需求,可参考大毅科技同系列其他型号(如1210封装、RMS12FT3301F等)。
RMS12FT3301凭借平衡的性能与成本优势,成为多数电子设计中常用的基础电阻元件,适合各类中小功率电路的快速选型与应用。
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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.
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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.
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The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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