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本型号为三环(CCTC)品牌的多层陶瓷贴片电容(MLCC),核心参数经行业标准规范定义,具体如下:
参数项 规格值 关键说明 容值 2.2nF(222K) 22×10²pF,精度±10%(K级) 额定电压 2kV(DC) 直流额定工作电压,支持中高压场景 温度系数 X7R 温度范围-55℃~+125℃,容值变化≤±15% 封装尺寸 1206(英制) 公制对应3216(3.2mm×1.6mm) 厚度 1.6mm 适配常规SMT工艺的标准厚度 介质类型 多层陶瓷(MLCC) 高绝缘性+耐高压的叠层结构 环保认证 RoHS 2.0、无铅(Pb-free) 符合欧盟环保要求封装适配性
采用1206标准贴片封装,尺寸紧凑(3.2mm长×1.6mm宽),厚度1.6mm,兼容绝大多数SMT生产线的贴装、焊接工艺,无需特殊工装调整,可直接集成于小型化PCB设计中。
多层陶瓷结构
介质层采用X7R陶瓷材料,通过多层叠层工艺制成,电极采用镍基合金,兼具高绝缘性与耐高压特性,有效避免高压下的介质击穿风险;端电极采用“镍层+锡层”三层结构,焊接兼容性好,焊点可靠性高。
机械稳定性
产品经过振动、跌落等可靠性测试,可承受常规工业环境下的机械应力,长期使用不易出现开裂、脱落问题。
宽温稳定特性
X7R温度系数确保电容在-55℃至+125℃的宽温范围内,容值变化控制在±15%以内,无需额外温度补偿电路,满足工业级、车载(部分场景)等环境的应用需求。
高压耐受力
额定电压2kV(DC),结合多层陶瓷的绝缘设计,可稳定工作于中高压直流电路;同时具备一定过压耐受能力(需遵循降额原则),降低电路故障风险。
性价比优势
容值精度±10%(K级),在满足大多数中低精度电路需求的前提下,成本低于高精度(±5%、±1%)型号,适合批量应用场景的成本控制。
品牌可靠性
三环(CCTC)作为国内MLCC主流品牌,产品经过高温老化、湿度循环等严格测试,一致性好、可追溯性强,批量应用不良率低。
本型号因高压特性与宽温稳定性,广泛应用于以下领域:
本型号电容兼顾高压性能、宽温稳定性与成本优势,是中高压电路设计的高性价比选择。
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