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RK73H1ETTP1000F是日本KOA公司推出的一款小型化高精度厚膜贴片电阻,针对高密度电路设计与宽温环境可靠性需求优化,兼顾成本与性能,广泛适配消费电子、工业控制等多领域应用场景。以下从产品定位、参数解析、设计特点、应用场景及使用注意事项展开详细说明。
KOA作为全球被动元器件领域的资深厂商,拥有数十年电阻研发与生产经验,其厚膜电阻产品以稳定性强、一致性好著称。RK73H1ETTP1000F定位于高集成度、宽温通用型贴片电阻,可替代同规格薄膜电阻降低设计成本,同时满足工业级应用的可靠性要求,是平衡性能与经济性的优选方案。
该产品核心参数经过严格测试验证,直接决定其应用边界:
阻值为100Ω,精度±1%——此精度级别可满足大多数电路的分压、限流、信号调理需求,无需额外校准即可实现稳定输出,尤其适合对阻值一致性要求较高的批量生产场景。
额定功率100mW,最大工作电压75V——从功率与电压的关系((P=V^2/R))计算,75V电压下实际功耗约56.25mW,远低于额定功率,确保长期工作无过热风险;电压限制避免了绝缘层击穿问题,提升安全可靠性。
温度系数为±100ppm/℃——该指标表示温度每变化1℃,阻值变化百万分之一。以典型工作温度范围(-55℃~+155℃)为例,阻值最大变化量仅为(100Ω×130℃×1e-6=0.013Ω),远小于±1%的精度范围,宽温下仍能保持阻值稳定。
工作温度范围覆盖-55℃~+155℃,封装为0402英寸(行业标准封装,实际尺寸约0.4mm×0.2mm)——宽温区适配工业环境(如户外传感器、车载辅助电路),小封装则支持PCB板高密度布线,符合消费电子小型化趋势。
KOA针对该产品的厚膜工艺与封装设计,重点优化了可靠性与一致性:
RK73H1ETTP1000F因参数均衡,可覆盖多领域应用:
为保障产品性能与寿命,使用时需注意以下要点:
RK73H1ETTP1000F凭借小封装、高精度、宽温稳定的核心优势,成为众多电路设计的优选被动元器件,可有效降低设计复杂度与成本,同时保障系统可靠性。
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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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