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PESD24VL2BT是固得沃克(GOODWORK)推出的双路双向ESD防护器件,专为敏感电子电路的瞬态过压防护设计,核心用途是抵御静电放电(ESD)、电快速瞬变脉冲群(EFT)等干扰,避免后端元件(如MCU、传感器、通信接口芯片)因过压损坏。其采用小型化SOT-23封装,兼具高密度集成与宽温适应性,可满足消费类、工业级等多场景的防护需求,是电子设备EMC设计的高性价比选择。
器件为双向导通,可同时防护正负瞬态脉冲,适配单电源/双电源线路;反向截止电压(Vrwm)24V,确保在24V电源/信号线路中稳定工作(无漏电流或微小漏电流);击穿电压典型值26.7V,比截止电压略高,避免正常工作时误触发;钳位电压45V(峰值脉冲下),可将过压限制在后端元件的耐受阈值内(通常半导体元件耐受电压≤50V),实现有效防护。
峰值脉冲电流(Ipp)3.5A,峰值脉冲功率(Ppp)420W,可承受强瞬态脉冲冲击(如人体直接接触设备产生的ESD);反向漏电流(Ir)仅500nA,低泄漏特性确保正常工作时不影响线路功耗与信号完整性,尤其适合低功耗设备。
结电容(Cj)典型值13pF,对于低速至中速信号(如USB2.0、UART、I2C、SPI等),不会造成明显的信号衰减或相位偏移,可直接并联在信号线路上,无需额外匹配补偿电路,简化系统设计。
器件采用SOT-23封装,尺寸小巧(通常为2.9×1.6×1.1mm),属于表面贴装式(SMD),可通过自动化贴装提高生产效率;内置双路防护通道,可同时防护两条独立的电源或信号线路,相比单路器件节省PCB空间(约30%),降低系统设计复杂度,适合高密度集成的便携式设备。
PESD24VL2BT严格符合IEC 61000-4-2(ESD防护) 和IEC 61000-4-4(EFT防护) 国际标准:
工作温度范围覆盖**-55℃~+125℃**,属于宽温级器件,可适应极端环境:
PESD24VL2BT的核心优势在于:双路集成节省空间、双向防护适配正负脉冲、低电容兼容信号传输、宽温范围适应多场景、符合国际防护标准,可有效提升电子设备的可靠性与使用寿命,是中低端电子设备ESD防护的优选器件。
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