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SMBJ10A/TR13是台湾君耀电子(Brightking) 推出的一款单向瞬态抑制二极管(TVS),专注于电路过压保护场景。君耀作为国内专业保护器件供应商,在TVS、压敏电阻等领域拥有成熟的研发与制造体系,产品覆盖消费电子、通信、工业控制等多领域。该型号采用SMB封装(DO-214AA),属于表面贴装型器件,料号中“TR13”表示13英寸编带包装,适配自动化贴装需求。
SMBJ10A/TR13的参数针对低电压过压保护优化,关键指标如下:
额定值为10V,是器件正常工作时可承受的最大反向电压,无过压时保持截止状态,不影响电路静态运行。
典型值为11.1V(公差范围±10%~15%),当反向电压超过该值时,TVS管启动导通,泄放浪涌电流,触发保护机制。
额定值为17V(对应8/20μs标准浪涌脉冲),是导通后能钳位到的最高电压,可有效限制后端敏感器件(如IC、MOS管)的过压冲击。
额定值为35.3A,反映器件在8/20μs浪涌下的最大耐受电流,体现强浪涌抑制能力。
额定值为600W,由Vc与Ipp乘积计算(17V×35.3A≈600W),明确器件浪涌耐受极限。
典型值为5μA(Vrwm=10V下测试),漏电流极小,对电路静态功耗影响可忽略。
该产品采用SMB(DO-214AA)表面贴装封装,尺寸紧凑(约2.3mm×1.5mm×1.0mm),适配高密度PCB布局。封装符合RoHS无铅环保标准,满足全球市场要求。器件为单向极性,安装时需注意引脚方向(色环端为阴极,对应电路反向电压端),避免反向安装导致保护失效。
SMBJ10A/TR13适用于多种低电压过压保护场景:
综上,SMBJ10A/TR13凭借紧凑封装、稳定参数与高浪涌能力,成为低电压电路过压保护的可靠选择。
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