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SMBJ7.0CA是华轩阳电子(HXY MOSFET)推出的双向瞬态抑制二极管(TVS),采用SMB(DO-214AA)表面贴装封装,专为电子电路中的瞬态过压防护设计,可有效抑制静电放电(ESD)、雷击浪涌、开关瞬态等异常高压脉冲,保护敏感电子元器件免受损坏。
SMBJ7.0CA的电气参数经过严格测试,关键指标需结合应用场景匹配设计:
反向截止电压(Vrwm):7V
即器件在直流工作状态下不导通的最大电压,需确保电路正常工作电压低于该值(如5V电路适配性强)。
击穿电压(Vbr):7.78V(典型值)
反向偏置下,器件开始导通的电压阈值,是钳位保护的起始点,误差范围小(通常±5%),保证保护一致性。
钳位电压(Vc):12V(@Ipp=50A)
当峰值脉冲电流达到50A时,器件两端电压被钳位在12V以内,是保护后级电路的核心指标(需确保后级器件最大耐受电压≥12V)。
峰值脉冲电流(Ipp):50A(@10/1000μs波形)
10/1000μs为国际通用浪涌波形标准(上升时间10μs,半峰值时间1000μs),可满足多数消费电子、通信设备的浪涌防护需求。
峰值脉冲功率(Ppp):600W(@10/1000μs)
浪涌脉冲最大功率(计算:Vc×Ipp=12V×50A=600W),体现器件浪涌耐受能力。
反向漏电流(Ir):200μA(@Vrwm=7V)
正常工作电压下的漏电流极低,对电路正常工作干扰极小,不增加系统功耗。
SMB(DO-214AA)封装是TVS器件的主流表面贴装形式,具有以下优势:
SMBJ7.0CA的参数特性适配多种电子设备的过压防护:
SMBJ7.0CA凭借双向保护、小体积、高功率密度等优势,成为消费电子、通信、工业等领域过压防护的高性价比选择,可有效提升电子设备的可靠性与抗干扰能力。
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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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