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TDD A7是台冠电子(TDD)推出的独立式高压整流二极管,针对小功率高压应用场景设计,核心覆盖「1A连续整流+1kV反向耐压」的性能区间,是替代传统高压硅堆、满足高密度PCB设计的优选器件。其定位清晰:兼顾低损耗、高可靠性与小型化封装,适配工业控制、消费电子、电源模块等多领域的高压整流/保护需求。
A7的核心参数围绕「高压、小电流、低损耗」优化,关键指标如下:
正向压降(Vf)为1.1V@1A,在1A连续工作电流下,单管正向损耗仅1.1W(功率=Vf×电流),远低于同电流等级普通硅整流管的损耗水平(部分同类产品Vf达1.3V以上)。该参数可有效降低系统发热,减少散热设计成本,适合对效率敏感的电源类应用。
额定整流电流(IF)为1A,支持连续工作在1A负载下,峰值电流(IFSM)可承受10A(25℃下),适配多数小功率电源、驱动电路的峰值负载场景。
A7采用SOD-123FL表面贴装封装,兼具「小型化」与「高可靠性」:
SOD-123FL封装尺寸约为2.9mm×1.6mm×1.0mm,比传统DO-41插件封装小70%以上,可大幅节省PCB空间,适合便携式设备、小型模块电源等对体积敏感的应用。
A7的参数特性使其适配以下核心场景:
如手机/平板适配器、LED驱动电源的高压整流环节(AC220V整流后直流电压约310V,A7的1kV耐压提供2倍以上裕量),低漏电流可降低待机功耗,符合节能标准。
如小型臭氧发生器、高压离子发生器的整流电路,1kV耐压可应对模块内部的高压尖峰,稳定输出直流高压。
(若满足车规级要求,可拓展至)车载胎压监测、倒车雷达的高压隔离环节,耐温范围覆盖汽车工作环境。
台冠电子(TDD)是国内专注于半导体分立器件的制造商,拥有10余年二极管研发生产经验,产品覆盖整流、快恢复、肖特基等全系列。A7经过严格可靠性测试:
综上,TDD A7以「高压、低损耗、小型化」为核心优势,是小功率高压应用场景中替代传统器件的高性价比选择,可有效提升系统效率与可靠性。
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