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SMCJ16CA-AT/TR13是台湾君耀(Brightking)推出的一款双向瞬态抑制二极管(TVS),专为电子线路的瞬态过压防护设计,兼具小体积、宽温范围与高浪涌耐受能力,适配多种工业、消费及汽车电子场景的防护需求。
该器件属于SMC封装(DO-214AB) 表面贴装TVS,核心定位为双向过压防护元件——可同时抑制正、负方向的瞬态浪涌脉冲,无需区分极性安装,简化电路设计与生产工艺。其核心功能是在电路遭遇雷击、静电放电(ESD)或开关浪涌时,快速导通并钳位电压至安全范围,保护后端敏感元器件(如MCU、传感器、通信芯片等)免受损坏。
SMCJ16CA-AT/TR13的电气参数经过优化,平衡了正常工作可靠性与浪涌防护能力,核心参数如下:
反向截止电压(Vrwm):16V
指器件在正常工作状态下可承受的最大反向电压,无明显漏电流(反向漏电流Ir≤1μA),确保线路正常信号/电源传输不受干扰。
击穿电压(Vbr):17.8V
当电压超过此值时,器件开始从截止态转为导通态,是过压防护的“启动阈值”,避免电压持续上升损坏后端器件。
钳位电压(Vc):26V
指在10/1000μs浪涌波形下,器件导通后能将电压钳位至的最大峰值电压(计算逻辑:Vc = Ppp / Ipp = 1500W / 57.7A ≈26V),确保后端器件电压不超过其耐受力极限。
峰值脉冲电流(Ipp):57.7A
对应1.5kW峰值脉冲功率(Ppp)的浪涌电流能力,可耐受多次重复浪涌冲击(符合TVS器件的浪涌耐受特性),满足常见工业/消费场景的浪涌防护需求。
工作温度范围:-55℃~+150℃
覆盖工业级与汽车级环境温度要求,可在极端低温(如户外工业设备)或高温(如车载电子舱内)场景稳定工作,无需额外散热设计。
SMCJ16CA-AT/TR13采用SMC(DO-214AB)表面贴装封装,具有以下核心优势:
基于其双向防护、宽温范围与小封装特性,SMCJ16CA-AT/TR13适用于以下场景:
为确保防护效果,应用时需注意以下要点:
综上,SMCJ16CA-AT/TR13凭借双向防护、宽温范围、小封装与高浪涌耐受能力,成为电子线路瞬态过压防护的高性价比选择,覆盖消费、汽车、工业等多领域应用需求,是替代传统压敏电阻的理想方案。
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