薄膜片式[物理]电阻器结构及应用(风华高科).pdf

薄膜片式电阻器结构及应用 Thin Film Components and application 先进的高性能解决方案 High performance solutions for advanced applications 广东风华高新科技股份有限公司 开发部 邓进甫 0758-2865479 FENGHUA Devoting to becoming the world-class chip component combine Suppliers. FENGHUA Devoting to becoming the world-class chip component combine Suppliers. 1 薄膜片式电阻结构的优势 ◎ 高稳定性，低的噪音和极好的高频率性能 ◎ 高阻值精度 ◎ 较薄的电阻膜层 ◎ 较小的分布面积,降低成本 FENGHUA Devoting to becoming the world-class chip component combine Suppliers. FENGHUA Devoting to becoming the world-class chip component combine Suppliers. 2 1 薄膜电阻与厚膜电阻比较 薄膜电阻 厚膜电阻 ◎ 溅射薄膜 ◎ 丝网印刷 ◎ 均匀的薄膜层 ◎ 浆料中的颗粒分布不均匀 ◎ 电阻体稳定性高,损耗少 ◎ 电阻体执行标准膜厚 ◎ 低寄生效应 ◎ 高寄生效应 ◎ 稳定的高频性能,低噪音 ◎ 并联谐振 ◎ 较薄的膜层 0.03~1um ◎ 较厚有膜层10~15um ◎ 较小的公差±0.01%~±0.5% ◎ 标准公差±1%~±5% ◎ 优良的综合性能 ◎ 有限的综合性 FENGHUA Devoting to becoming the world-class chip component combine Suppliers. FENGHUA Devoting to becoming the world-class chip component combine Suppliers. 3 阻值、公差精度和温度系数关系 最大工作电 最大过负荷 电阻温度系数 型号 额定功率 阻值误差精度 阻值范围 压 电压 (PPM/℃) 50 Ω~5K Ω ±5 ±0.05~ ±0.5% 0402 1/16W 25V 50V 50 Ω~10K Ω ±10、±15 ±0.10~ ±1.0% 10 Ω~100K Ω ±25、±50