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CRCW0805200KFKEA是VISHAY(威世) 旗下CRCW系列的核心厚膜贴片电阻,专为工业、通信、消费电子等领域的稳定信号处理与功率应用设计。其结合了0805封装的紧凑性、1%精度的可靠性及宽温工作范围,成为中低端电子电路的优选被动元件。
该电阻属于厚膜电阻范畴,通过丝网印刷将电阻浆料烧结在陶瓷基底上,兼具成本优势与性能稳定性。型号字符含义清晰:
标称阻值200kΩ,±1%精度满足工业级电路的信号分压、反馈调节需求(如PLC模拟量输入模块、电源电压反馈环路)。批量生产中阻值偏差控制严格,一致性优于普通碳膜电阻。
额定功率1/8W(125mW),是0805封装厚膜电阻的常规等级。实际应用需降额:环境温度超70℃时,155℃时需降额至30%(37.5mW),避免过热失效。
±100ppm/℃,即温度每变1℃,阻值变化0.01%。例如25℃→155℃(变130℃),阻值最大变1.3kΩ,仍在1%精度内,适配高低温交替场景。
-55℃+155℃,远超商业级(0℃70℃),可适应户外设备、汽车辅助系统(如温度传感器电路)等极端环境。
0805封装(公制2012),体积紧凑(2.0mm×1.27mm×0.5mm),适配常规SMT生产线,适合高密度PCB设计(如智能手机主板、路由器模块)。
CRCW0805200KFKEA的参数特性使其广泛应用于:
VISHAY作为全球被动元件龙头,该电阻具备:
调整阻值可选CRCW0805系列(如199kΩ=CRCW0805199KFKEA、201kΩ=CRCW0805201KFKEA),封装/功率/精度一致。
替换需注意:端电极材质(无铅)、焊接兼容性、可靠性认证(汽车级需AEC-Q200)。
该电阻凭借性能与成本的平衡,成为电子设计中高频选用的被动元件,适用于对精度、温宽有基本要求但无需高端薄膜电阻的场景。
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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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