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DOWO SMBJ170CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SMBJ170CA
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SMBJ170CA
- 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
- BM0262122948
- Operating Temperature
- 55℃~+150℃
- Voltage
- 275V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 189V
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMBJ170CA 产品概述
一、产品简介
SMBJ170CA 是东沃（DOWO）推出的一款双向硅瞬态电压抑制二极管（TVS），采用 SMB（DO-214AA）封装，专为抑制高能量瞬态脉冲和保护敏感电子设备而设计。器件响应迅速、耐冲击能力强，适用于需要对双向过压进行保护的直流或交流回路。
二、主要参数
- 极性：双向
- 反向截止电压（Vrwm）：170 V
- 击穿电压（Vbr）：189 V（典型）
- 钳位电压（Vclamp）：275 V（在峰值脉冲电流 Ipp 条件下）
- 峰值脉冲电流（Ipp）：2.18 A
- 峰值脉冲功率（Ppp）：600 W（10/1000 μs 测试波形）
- 反向电流（Ir）：1 μA（典型）
- 工作温度范围：-55 ℃ 至 +150 ℃
- 封装：SMB（DO-214AA）
三、关键特性
- 高能量吸收能力：600 W (10/1000 μs) 的脉冲功率，能有效吸收工业级浪涌能量。
- 双向保护：对正负极性瞬态均能抑制，适应交流或双向浪涌场合。
- 低漏电流：典型 1 μA，减少静态损耗，利于高阻抗线路保护。
- 宽温度范围：可在严苛环境下长期工作，适合工业级应用。
- SMB 封装：便于自动化贴装与散热，机械强度好。
四、典型应用
- 工业电源与逆变器保护（如直流母线、控制板防护）
- 通信设备与基站外围防雷浪涌保护
- 电机驱动、变频器输入/输出保护
- UPS、电池管理与充电桩外围抗峰值浪涌保护
- 其它需要抑制高压瞬态脉冲的电子系统
五、封装与安装建议
- 建议靠近被保护元件或接口放置，缩短 PCB 走线长度以降低感抗。
- SMB（DO-214AA）为表面贴装封装，焊盘设计参考厂商推荐尺寸以保证可靠热传导。
- 对于高能量事件，推荐配合合适熔断器或限流器以防止持续过流导致器件损坏。
- 焊接时遵循回流曲线，避免过热影响器件可靠性。
六、选型与注意事项
- 确认系统工作电压与 Vrwm（170 V）匹配，留有足够裕量以避免常态下触发。
- 钳位电压 275 V 为在指定脉冲条件下的典型值，实际系统瞬态可能略有差异，应在系统级测试中验证。
- 若系统可能遭受高于规定脉冲能量的干扰，应选用更高能量等级或并联防护元件。
SMBJ170CA 以其高能量吸收能力、低漏电流和工业级温度范围，适合对中高压母线和双向过压敏感电路提供可靠的瞬态保护。
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