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SMF60CA是晶导微电子针对敏感电子电路浪涌防护需求开发的双向瞬态抑制二极管(TVS),采用SOD-123FL小型表面贴装封装,兼具高脉冲功率容量、宽温度适应性与双向防护特性,可有效抑制静电放电(ESD)、雷电浪涌及瞬态过压对后级电路的冲击,广泛适配工业控制、通信设备、消费电子等多领域应用场景。
SOD-123FL封装尺寸紧凑(典型尺寸约2.4mm×1.6mm×1.0mm),适合高密度PCB布局;双向导通特性无需区分正负极,简化电路设计与焊接工艺,提升生产效率。
SMF60CA的关键参数围绕“浪涌防护能力”与“正常工作可靠性”设计,核心参数及意义如下:
表示正常工作状态下,器件可承受的最大反向直流电压(或峰值交流电压),当电路电压未超过60V时,TVS处于截止状态,仅存在极小漏电流,不影响电路正常运行。
当电路电压超过此值时,TVS进入雪崩击穿状态,迅速导通并分流浪涌电流,是“从截止到保护”的临界电压,其值略高于V₍rwm₎可避免误触发。
击穿后,TVS可将浪涌电压钳位在该值,是保护后级电路的核心参数——后级敏感元件(如MCU、传感器)的最大耐受电压需高于96.8V,确保浪涌被有效抑制。
10/1000μs为国际标准浪涌波形(前沿10μs升至峰值,半峰值持续1000μs),表示该波形下TVS可承受的最大峰值浪涌电流,反映器件的电流耐受能力。
对应同一浪涌波形的最大脉冲功率,直接体现TVS的浪涌能量吸收能力,200W功率在SOD-123FL封装中属于高功率密度设计。
正常工作时(V≤V₍rwm₎)的反向漏电流,仅1μA的低漏电流可避免器件自身功耗对电路的影响,尤其适合低功耗应用场景。
覆盖工业级温度标准(-40℃+85℃)及部分汽车级需求(-55℃+125℃),可稳定工作于高低温极端环境,如户外通信设备、工业烤箱等场景。
SOD-123FL封装具备以下优势:
SMF60CA的双向防护、宽温及高功率特性,使其适配多类场景:
相较于同封装、同电压等级的TVS器件,SMF60CA具备以下核心优势:
SMF60CA作为一款高性价比的双向TVS二极管,通过紧凑封装、宽温特性与双向防护能力,有效解决了敏感电路的浪涌防护问题。其在工业控制、通信、消费电子等领域的广泛适用性,使其成为工程师设计过压保护电路的理想选择,可显著提升电路的抗干扰性与可靠性,降低浪涌导致的设备损坏风险。
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