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0201WMJ0270TEE是厚声电子(UNI-ROYAL) 推出的通用型厚膜贴片电阻,针对小型化、低功耗电子设备设计,主打“高集成度+宽温适应性”,是消费电子、IoT、工业控制等领域的常规选型料号。厚声作为国内被动元件头部厂商,其贴片电阻产能稳定、品质符合AEC-Q200(汽车级)基础标准,该型号可覆盖商业级至工业级场景需求。
阻值为27Ω±5%,属于E24系列常用阻值(E24是电子电路最广泛使用的阻值序列),实际阻值范围在25.65Ω~28.35Ω之间,无需高精度校准即可满足大多数通用电路的分压、限流、信号匹配需求,可有效降低BOM成本。
额定功率50mW,是0201封装贴片电阻的典型功率承载能力;最大工作电压25V,适配低压直流/交流电路(≤25V),避免高压击穿风险。
温度系数**±200ppm/℃,即温度每变化1℃,阻值变化±27Ω×200ppm=±5.4mΩ;在-55℃~+155℃** 宽温范围内,最大阻值变化约±1.62Ω,可稳定适配寒冷/高温环境(如户外传感器、车载小模块)。
采用0201英寸封装(公制尺寸:0.6mm×0.3mm),是当前贴片电阻小型化的主流封装之一,可大幅节省PCB面积(比0402封装节省约60%空间),适合高密度布局(如智能手机主板、智能手表传感器模块)。
基于厚膜工艺制造:在高纯度氧化铝陶瓷基板上印刷钌基电阻浆料,经高温烧结、电极涂覆(镍/锡镀层)而成,兼具“成本低+稳定性好”的特点,抗机械应力能力优于薄膜电阻。
两端电极采用可焊性优异的金属镀层,兼容回流焊(峰值温度235℃~245℃)、波峰焊等常规贴片工艺,焊接后无虚焊、脱落风险,符合IPC-A-610电子组装标准。
通过湿度循环(85℃/85%RH,1000小时)、温度冲击(-55℃~+155℃,500次) 等测试,阻值变化率≤±1%,符合IEC 60115-1国际标准。
在高温环境下需降额使用:
电路实际功耗需满足:( I ≤ \sqrt{P/R} = \sqrt{50mW/27Ω} ≈ 43mA ),若电路电流超过43mA,需选择更高功率封装(如0402封装1/16W)。
0201WMJ0270TEE以“小封装、宽温、低成本”为核心优势,覆盖了从消费电子到工业控制的多场景需求,是电子工程师在小型化、低功耗设计中的常规选型料号。厚声的稳定供货能力也使其适合批量生产,无需担心断供风险。
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