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SMAJ26A是瑞隆源(RUILON)推出的单向表面贴装瞬态抑制二极管(TVS),采用DO-214AC(SMA)封装,专为电子电路的瞬态过压防护设计,可有效抑制静电放电(ESD)、电快速瞬变脉冲群(EFT)及雷击浪涌等干扰,广泛应用于消费电子、工业控制、通信设备等领域。
SMAJ26A的电气参数经过严格测试,满足实际防护场景的精准需求,核心参数及意义如下:
参数名称 典型值/规格 应用说明 反向截止电压(Vrwm) 26V 电路正常工作时可长期承受的最大反向电压,无击穿/漏电流过大风险 击穿电压(Vbr) 33.2V 反向过压时的导通起始电压,比Vrwm高27%,避免电路波动导致的误触发 钳位电压(Vc) 42.1V 10/1000μs脉冲波形下的最大钳位电压,需匹配后端器件的耐压上限 峰值脉冲电流(Ipp) 9.5A 上述脉冲下可承受的最大峰值电流,确保过压能量快速泄放 峰值脉冲功率(Ppp) 400W 10/1000μs波形下的最大防护功率,适配小功率电路的浪涌需求 反向漏电流(Ir) 1μA 截止状态下的漏电流,数值极小,不影响电路正常工作及功耗核心特性:
SMAJ26A采用DO-214AC(SMA)封装,是电子领域常用的小尺寸表面贴装封装,具有以下优势:
结合参数及防护认证,SMAJ26A的典型应用场景包括:
SMAJ26A符合国际EMC标准,确保防护可靠性:
为保障防护效果,使用时需注意:
SMAJ26A作为高性价比单向TVS,凭借紧凑封装、精准钳位及EMC认证防护能力,成为消费电子、工业控制、通信设备等领域小功率过压防护的理想选择。其低漏电流、ns级响应及重复使用性,可有效降低后端敏感元器件损坏风险,提升电路可靠性。
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