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RTT024300FTH是台湾旺诠(RALEC)推出的0402封装厚膜贴片电阻,专为高密度、小体积电子电路设计,属于高精度小功率电阻范畴。该型号以稳定的电气性能、紧凑的物理尺寸,适配消费电子、工业控制、通信设备等领域的常规信号调理、匹配网络及小信号放大场景,是批量生产中替代同规格电阻的可靠选择。
核心阻值为430Ω,精度等级为**±1%**——该精度可满足多数模拟电路(如运放反馈网络、传感器信号放大)对阻值稳定性的要求,避免因阻值偏差导致的信号失真或功能异常。
额定功率为1/16W(62.5mW),最大工作电压为50V。需注意:实际工作时功耗不得超过额定功率(62.5mW),因此最大允许电流为( I_{max} = \sqrt{P_{rated}/R} ≈ 12.1mA );50V为绝压上限(电阻可承受的最高电压,不代表长期工作电压),实际应用需结合电路电流计算实际功耗,避免过载。
温度系数(TCR)为**±100ppm/℃**,表示温度每变化1℃,阻值变化±0.01%。以25℃为基准,155℃时阻值变化约±1.3Ω,-55℃时变化约±0.8Ω,性能波动在多数场景可接受。
工作温度覆盖**-55℃至+155℃**,符合工业级与部分车载辅助电路的环境要求,可适应高低温交替工况。
采用英制0402封装(公制1005,尺寸约1.0mm×0.5mm×0.3mm),体积紧凑,适配高密度PCB布局,尤其适合便携设备(如智能手机、智能手环)的小型化设计。
厚膜印刷工艺赋予产品以下特性:
RALEC(旺诠)是全球知名被动元件制造商,专注电阻研发超30年,产品以一致性好、故障率低著称。RTT024300FTH通过高温老化、温度循环、湿度测试等多项可靠性验证,批量产品的阻值偏差、TCR波动均控制在规格书范围内,满足OEM/ODM量产要求。
该产品以高性价比、稳定性能成为同规格电阻主流选择,适合对体积、精度有要求的中小功率电路设计。
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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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