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DOWO SMBJ30CA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SMBJ30CA
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SMBJ30CA
- Electronic Component
- 1
- Package
- SMB(DO-214AA)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.218g
- Electronic Component
- 1
- Electronic Component
- BM0258760014
- Operating Temperature
- 55℃~+150℃
- Voltage
- 48.4V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 33.3V
- 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.
SMBJ30CA 产品概述
一、产品简介
SMBJ30CA 是东沃（DOWO）出品的一款双向瞬态抑制二极管（TVS），专为 24V 级电源及信号线的浪涌与静电放电保护设计。器件采用 SMB（DO-214AA）表面贴装封装，响应速度快、吸收能量大，适用于工业电源、通信与汽车电子等需要稳健瞬态保护的场合。
二、主要电气参数
- 极性：双向（适合交流或双向脉冲抑制）
- 反向工作电压 Vrwm：30 V
- 击穿电压 VBR(min)：33.3 V
- 钳位电压 VC：48.4 V（测量条件 IPP = 12.4 A）
- 峰值脉冲电流 Ipp：12.4 A
- 峰值脉冲功率 Ppp：600 W（10/1000 µs 波形）
- 反向泄漏电流 Ir：1 µA（典型，通常在 Vrwm 下测得）
- 工作温度范围：-55 ℃ ~ +150 ℃
三、主要特性与优点
- 高能量吸收：600 W（10/1000 µs）脉冲能力，可应对大多数工业浪涌事件；
- 有效钳位：在 12.4 A 峰值脉冲下钳位电压 48.4 V，可限制瞬态电压，保护后端电路；
- 低泄漏电流：典型反向漏电仅 1 µA，有利于降低静态能耗；
- 双向工作：无需区分极性，适用于交流或双极瞬态抑制场合，安装简便；
- 宽温度范围：-55 ℃ 至 +150 ℃，适应严苛环境与高温工作条件。
四、典型应用场景
- 24 V 工业控制电源与继电器驱动线路的浪涌保护；
- 通信设备电源接口、基站与远端单元的浪涌钳位；
- 车载电子电源保护（需按车规要求做进一步验证）；
- 电力与配电设备、UPS 与逆变器侧的瞬态抑制；
- 一般电子产品的 I/O 端口与电源线过压保护。
五、封装与可靠性
- 封装：SMB（DO-214AA）表面贴装，适合自动贴装与回流焊工艺；
- 机械与焊接建议：遵循 SMB 封装的标准焊盘与回流曲线，注意避免过高的峰值回流温度和长时间高温暴露以保证性能稳定；
- 可靠性：适用于工业级工作温度，耐高低温循环与常见浪涌冲击，建议在最终产品中通过实际浪涌/ESD 认证验证性能。
六、使用与注意事项
- 选型时请确认系统最大允许钳位电压（VC）与被保护器件承受电压匹配；
- 双向器件在直流单向场合同样可用，但如需更低钳位电压可考虑单向 TVS；
- 回流焊接时参照器件数据手册的温度曲线与处理建议；
- 在高能量浪涌环境或反复浪涌场合，应评估器件热耗散与长期寿命，必要时并联或采用更高等级保护。
如需完整电气特性曲线、机械尺寸图或应用参考电路，可提供型号数据手册（Datasheet）或样品评估支持。
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