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TECH PUBLIC SMBJ30CA
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TECH PUBLIC SMBJ30CA
- Type
- TECH PUBLIC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TECH PUBLIC
- Electronic Component
- SMBJ30CA
- Electronic Component
- 1
- Package
- DO-214AA(SMB)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.187g
- Electronic Component
- 1
- Electronic Component
- BM0231019652
- Operating Temperature
- 55℃~+150℃
- Voltage
- 48.4V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 36.8V
- 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、概述
SMBJ30CA 是 TECH PUBLIC(台舟电子) 提供的一款双向瞬态电压抑制器（TVS），用于抑制瞬态过电压和浪涌能量，保护敏感电子元件和电路不受雷击、电源切换或感性负载断开造成的脉冲冲击。器件采用 DO-214AA (SMB) 封装，适用于空间有限且需可靠浪涌保护的场合。
二、主要电气参数
- 极性：双向（Bi-directional），适用于交流或对称双向瞬态抑制。
- 反向截止电压 Vrwm：30 V（稳态耐压值，器件在该电压下不导通）。
- 击穿电压 Vbr：36.8 V（器件进入雪崩导通的典型范围）。
- 钳位电压 Vc：48.4 V（在标准脉冲条件下的最大钳位电压，表示抑制后的最大电压）。
- 峰值脉冲电流 Ipp：12.4 A @ 10/1000 μs（10/1000 μs 浪涌波形下可承受的峰值电流）。
- 峰值脉冲功率 Ppp：600 W @ 10/1000 μs。
- 反向电流 Ir：1 μA（在 Vrwm 条件下的漏电流，表明静态功耗很低）。
- 工作温度：-55 ℃ 至 +150 ℃。
三、典型应用场景
- 24 V 及 30 V 级电源保护：工业自动化、PLC、楼宇控制等设备的总线与电源端口防浪涌。
- 数据与信号接口：RS-485、CAN 总线等对称差分信号线的瞬态抑制（双向特性尤为适合）。
- 工业控制与仪表：变频器、继电器驱动、传感器接口等存在感性负载或雷击风险的系统。
- 消费与通讯设备的输入端、二次保护场合。
四、封装与机械注意事项
器件采用 DO-214AA (SMB) 封装，适配常见 SMB 焊盘尺寸。建议在 PCB 布局时：
- 将 TVS 靠近需保护的端口或接口放置，以减小走线感抗和峰值电压。
- 保持散热良好，避免器件与高温元件近距并列，必要时在铜箔区加大散热面积。
- 双向 TVS 无极性方向限制，但请根据封装上的标识与推荐脚位正确摆放。
五、使用建议与可靠性
- 在选型时请以系统最大允许钳位电压为依据，48.4 V 钳位值适合能承受该电压的被保护器件。
- 对于频繁高能脉冲或更苛刻环境，建议进行整机级浪涌试验，以确认寿命与可靠性。
- 器件适用温度范围宽（-55～150 ℃），适合大多数工业与户外应用；存储与回流焊时遵循厂家工艺规范以保证可靠焊接。
六、采购信息
- 类型：TVS（瞬态抑制二极管）
- 品牌：TECH PUBLIC（台舟电子）
- 型号：SMBJ30CA
- 封装：DO-214AA (SMB)
如需更详细的浪涌能量曲线、动态阻抗、焊接回流曲线或合格认证信息，请参考 TECH PUBLIC 的完整产品资料或联系供应商获取规格书。
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