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WR04X222JTL是华新科(Walsin) 推出的0402封装厚膜片式电阻,属于小型化、高可靠性的被动元件,主要面向高密度电路设计场景。其核心特性可总结为:
产品参数经过严格测试验证,核心指标如下:
标称阻值为2.2kΩ(标识代码“222”,对应22×10²),精度±5%。该精度等级可满足多数民用(如消费电子)、工业常规电路的分压、限流、信号匹配需求,无需额外高精度筛选,降低设计成本。
最大额定功率为62.5mW(即1/16W),适合小功率信号调理(如音频电路分压)、低功耗模块(如物联网终端)等场景,避免功率冗余带来的体积浪费。
最大工作电压为50V,适用于低压直流/交流电路(如3.3V、5V、12V系统),电压裕量充足,可有效降低过压击穿风险。
阻值温度系数为**±100ppm/℃**,表示温度每变化1℃,阻值变化±0.01%。在宽温范围内(-55℃~+155℃),该稳定性可保障电路性能的一致性,避免因温度波动导致功能异常。
覆盖**-55℃+155℃**,不仅满足工业级(-40℃+85℃)环境需求,还可适配部分汽车级(-55℃~+125℃)场景,适应高低温交替的恶劣工况。
WR04X222JTL采用0402英寸封装(公制尺寸:长1.0±0.1mm,宽0.5±0.1mm,厚0.3±0.1mm),是当前小型化电路的主流封装之一,可显著提升PCB布局密度。
封装结构采用厚膜工艺:以陶瓷基片为载体,通过丝网印刷厚膜电阻浆料(如钌系浆料)形成电阻层,表面覆盖玻璃釉保护层,端电极采用镍/锡合金(无铅环保),适配回流焊、波峰焊等SMT工艺,焊接可靠性高。
结合参数与封装特性,该电阻广泛应用于以下领域:
华新科(Walsin)是全球知名被动元件厂商,专注电阻、电容研发生产30余年,产品通过ISO 9001、IATF 16949(汽车级)等质量体系认证,广泛应用于苹果、华为、博世等客户的量产项目。
WR04X222JTL采用自动化生产工艺,阻值一致性控制在±5%以内,供货周期稳定(标准料7~15天),适合中小批量及大规模量产需求。
综上,WR04X222JTL凭借小封装、宽温稳定、成本可控等优势,成为消费电子、工业控制等领域的高性价比片式电阻选择。
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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.
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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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