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CN34JTN474是大毅科技推出的一款0603×4封装集成排阻,内部集成4个独立电阻,专为高密度、小型化电子设计场景优化。其核心参数清晰明确:
470kΩ属于中高阻值范畴,广泛用于信号分压、上拉/下拉、滤波等电路。±5%的精度覆盖了绝大多数消费电子、工业控制的通用需求,同时避免了手工焊接多个电阻带来的一致性偏差,提升电路可靠性。
单电阻62.5mW的功率容量,结合470kΩ阻值可计算出最大连续工作电流约为367μA(公式:(I=\sqrt{P/R}=\sqrt{62.5e-3/470e3}))。实际使用需注意降额设计:环境温度每升高10℃,功率需降额5%左右,避免过热损坏。
±200ppm/℃的温度系数意味着,温度每变化1℃,阻值变化0.02%。以常见的-55℃至125℃工作范围计算,最大阻值变化约3.6%,叠加±5%精度误差,总波动在8.6%以内,满足非高精度场景的稳定需求。
0603×4封装将4个0603电阻集成,相比分散焊接4个0603电阻,可节省约70%的PCB面积,同时减少焊接点数量,提升生产效率与电路可靠性。
CN34JTN474采用贴片式0603×4封装,符合国际电子封装标准,总尺寸适配小型化PCB设计。引脚配置为8脚,通常采用“一端4脚、另一端4脚”的对称布局,便于电路等距布线,兼容常规SMT(表面贴装)设备,支持回流焊、波峰焊工艺。
需注意焊接参数:回流焊峰值温度≤245℃(时间≤30秒),手工焊接烙铁温度≤350℃(时间≤3秒),避免过热导致电阻性能下降。
该产品由大毅科技(Taiyo Technology) 生产,大毅科技是全球知名被动元件制造商,专注电阻、电容、电感研发,产品覆盖消费电子、工业控制、汽车电子等领域。CN34JTN474符合RoHS 6项环保标准(无铅、无镉、无汞等),通过高温老化、湿度循环、振动测试等可靠性验证,品质一致性可靠,适用于量产型设备。
综上,CN34JTN474排阻以高集成度、稳定性能、环保合规为核心优势,是小型化电子设备的高性价比选择。
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