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P6SMB36A是一款单向瞬态抑制二极管(TVS),由国内半导体品牌富芯森美(FUXINSEMI)研发生产,采用DO-214AA(SMB)表面贴装封装。作为电路过压保护的核心器件,其核心作用是在遭遇瞬态浪涌(如雷击感应、静电放电、电快速瞬变脉冲群)时,快速导通并钳位电压至安全范围,避免后端敏感元件(MCU、传感器、通信芯片等)被击穿损坏。
该器件的参数针对中低压系统过压保护优化,核心参数及应用意义如下:
指器件正常工作时可承受的最大反向电压,漏电流极小。此参数适配24V直流系统(如汽车辅助电源、工业控制模块)——24V系统正常电压波动通常在21.6~26.4V(±10%),远低于30.8V,可避免因系统电压波动触发误保护。
是器件从反向截止态进入导通态的阈值电压。当电路电压超过37.8V时,TVS快速击穿导通,将浪涌电流分流至地,限制后端电压上升,确保浪涌到来时及时响应。
指峰值脉冲电流下器件两端的最大电压,是保护效果的核心指标。当12A峰值脉冲通过时,TVS将电压钳位至49.9V以内,远低于多数敏感元件的击穿电压(如MCU IO口耐压多为3.3~5V,高压芯片也多在60V以下),有效保护后端电路。
Vrwm电压下的漏电流仅5μA(0.005mA),远低于同类器件平均水平。低漏电流可降低器件自身功耗,适合低功耗电路(如便携式设备、电池供电系统),不影响系统待机时间。
覆盖汽车级(AEC-Q101)及工业级环境:
P6SMB36A采用DO-214AA(SMB)表面贴装封装,具备三大优势:
结合参数特性,该器件广泛应用于以下领域:
富芯森美(FUXINSEMI)作为国内功率半导体厂商,P6SMB36A经过严格可靠性测试:
该器件凭借高可靠性、宽温适配性及小体积优势,成为中低压过压保护场景的高性价比选择。
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