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SMBJ6.0CA是富芯森美(FUXINSEMI)推出的一款双向瞬态抑制二极管(TVS),采用SMB(DO-214AA)贴片封装,专为6V级低电压电路的过压防护设计,可有效抑制静电放电(ESD)、浪涌脉冲等瞬态干扰,保护敏感电子元器件免受损坏。
作为通用型TVS器件,SMBJ6.0CA的核心优势是双向防护无极性——无需区分正负极即可同步抑制正、负过压,简化电路设计;同时适配5V/6V低电压系统,是小型化电子设备的理想防护选择。其封装体积紧凑、焊接便捷,广泛覆盖消费电子、工业控制、汽车电子等领域。
SMBJ6.0CA的参数精准匹配低电压防护需求,核心指标及实际意义如下:
反向截止电压(Vrwm):6V
电路正常工作时,TVS反向不导通的最大电压。若电路电压≤6V(如常见5V系统),器件处于截止状态,不干扰正常电路;电压一旦超此值,立即启动防护。
钳位电压:10.3V
过压事件中,TVS将电路电压钳位在10.3V(典型值),确保单片机、传感器等敏感器件的工作电压不超过其耐受极限,避免击穿。
峰值脉冲电流(Ipp):58.3A
对应10/1000μs脉冲波形(模拟实际浪涌的上升/持续时间),器件可承受的最大瞬态电流为58.3A,能应对强浪涌(如雷击感应、电源开关瞬态)。
峰值脉冲功率(Ppp):600W@10/1000μs
核心防护能力指标——在10/1000μs波形下,最大耗散600W脉冲功率,实现SMB小封装下的高功率密度。
击穿电压:6.67V
反向电压超此值时,TVS进入雪崩击穿状态,快速导通泄放能量;与Vrwm的差值仅0.67V,确保防护启动及时性。
反向漏电流(Ir):800μA
Vrwm=6V下的漏电流为800μA,属于低漏范围,不增加低功耗电路的额外负担。
SMBJ6.0CA采用SMB(DO-214AA)贴片封装,具备以下实用优势:
结合参数与封装特点,SMBJ6.0CA的主要应用场景包括:
SMBJ6.0CA的工作温度范围为-55℃~+150℃,可适应极端温度(如北方冬季、高温车间);采用TVS雪崩击穿原理,属于可重复使用器件(不同于保险丝熔断),多次承受瞬态干扰不失效。富芯森美作为国内专业品牌,器件经严格可靠性测试(温度循环、湿度测试),适合工业级与汽车级应用。
综上,SMBJ6.0CA是高性价比的双向TVS器件,兼具小体积、宽温适应性与强防护能力,是低电压电路过压防护的可靠选择。
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