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DOWO SMBJ180A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SMBJ180A
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SMBJ180A
- Electronic Component
- 1
- Package
- SMB(DO-214AA)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.2g
- Electronic Component
- 1
- Electronic Component
- BM0264215322
- Voltage
- 291.6V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 200V
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMBJ180A 产品概述
一、基本参数
SMBJ180A 为单向 TVS 晶片二极管（玻璃钝化芯片），主要电气参数如下：
- 反向工作电压 Vrwm：180 V
- 击穿电压 VBR：200 V
- 钳位电压（Ipp 对应）：291.6 V
- 峰值脉冲电流 Ipp：2.06 A（对应 600 W@10/1000 μs）
- 峰值脉冲功率 Ppp：600 W（波形 10/1000 μs，重复率/占空比 0.01%）
- 反向泄漏电流 Ir：≤1 μA
- 类型：单向 TVS（亦有双向型号可选）
- 封装：SMB (DO-214AA)
- 品牌：DOWO（东沃）
- 符合 RoHS 要求
二、主要特性
SMBJ180A 采用玻璃钝化芯片工艺，具备以下优势：
- 极快的瞬态响应速度，可在极短时间内限制过压，保护敏感元件；
- 出色的钳位能力，能将高能脉冲电压钳制在安全范围内；
- 低泄漏特性，有利于在高阻抗或待机电路中保持低功耗；
- 高峰值吸收能量（600 W@10/1000 μs），适用于复杂工业与电力环境的浪涌抑制；
- SMB 封装适中，利于散热与自动化贴装工艺。
三、典型应用场景
- 直流电源输入与工业配电系统的浪涌保护；
- 电机驱动、逆变器和变频器的过压防护；
- 通信接口、电源适配器及工业控制设备的端口防护；
- 电池管理和储能系统中对瞬态冲击的吸收。
四、封装与热管理建议
- SMB (DO-214AA) 封装便于波峰/回流焊及手工焊接，建议在 PCB 上留足焊盘面积以改善散热路径；
- 推荐将 TVS 器件尽量靠近被保护端口放置，缩短导线和走线长度以减小寄生电感；
- 对于频繁或高能量浪涌环境，考虑在布局中加入热增强铜、散热通孔或并联多个器件以分散能量。
五、选型与使用注意
- 确认工作电压范围：单向 180 V Vrwm 适合高压直流或交流整流后电路；
- 验证钳位电压是否满足下游元件最大耐压要求（291.6 V 在规定脉冲下）；
- 注意脉冲能量与器件寿命：连续或高频次冲击需考虑热累积和退化，遵循 0.01% 占空比限制；
- 若需双向保护，请选择对应的双向型号。
SMBJ180A 以其高能量吸收能力、低泄漏与快速响应，适用于对瞬态过压有可靠防护要求的各种电力与工业应用。若需更详细的温度特性曲线、瞬态特性曲线或封装尺寸图，可参考厂商数据手册或联系东沃技术支持。
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