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SMBJ24CAQ是扬杰科技(YANGJIE)推出的表面贴装瞬态抑制二极管(TVS),属于SMB封装系列的核心防护型号。其核心定位是为电子系统提供快速、精准的过压防护,针对瞬态脉冲(如雷击浪涌、静电放电、开关尖峰等)实现可靠钳位,避免后端敏感元器件(IC、传感器、电容等)因过压损坏。作为一款高性价比的国产TVS器件,它可覆盖民用、工业等多场景的过压防护需求。
SMBJ24CAQ的参数设计围绕“防护可靠性”与“场景适配性”展开,核心参数的实际意义需结合应用理解:
反向截止电压(Vrwm:24V)
这是设备正常工作状态下可承受的最大反向直流电压。当电路静态电压不超过24V时,SMBJ24CAQ处于截止态,反向漏电流仅5uA,不会影响电路正常功耗或信号传输。
击穿电压(Vbr:29.5V)
当反向电压突破24V并达到29.5V时,器件开始从截止向导通切换,是过压防护的“启动阈值”——确保只有真实过压脉冲才会触发防护,避免误动作。
钳位电压(Vc:38.9V)
过压脉冲发生时,TVS能将后端电压钳位到的最大值(测试条件为10/1000us脉冲波形)。例如,若前端出现50V浪涌,SMBJ24CAQ可快速将后端电压限制在38.9V以内,远低于多数敏感IC的耐压极限(30-50V),有效保护后端元件。
峰值脉冲能力(Ipp:15.4A@10/1000us;Ppp:600W)
宽温工作范围(-55℃~+150℃)
远超普通TVS的-40~+85℃范围,能适应极端环境(如北方户外通信设备、高温工业车间),高低温下参数稳定性好,无性能衰减。
SMBJ24CAQ采用DO-214AA(SMB)表面贴装封装,具备三大优势:
扬杰科技作为国内功率半导体龙头企业,SMBJ24CAQ的品质管控具备以下特点:
结合参数特点,SMBJ24CAQ的核心应用场景包括:
SMBJ24CAQ凭借宽温范围、可靠钳位能力、小型化封装及高性价比,成为多领域过压防护的优选TVS器件,可有效提升电子系统的抗干扰能力与可靠性。
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