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RUILON SMBJ28CA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON SMBJ28CA
- Type
- RUILON
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RUILON
- Electronic Component
- SMBJ28CA
- Electronic Component
- 1
- Package
- DO-214AA(SMB)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.2g
- Electronic Component
- 1
- Electronic Component
- BM0257222068
- Operating Temperature
- 55℃~+150℃
- Voltage
- 45.4V
- Electronic Component
- IEC 61000-4-4；IEC 61000-4-2
- Current(Ir)
- 1uA
- Voltage(VBR)
- 35.8V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMBJ28CA 产品概述（RUILON 瑞隆源）
一、产品简介
SMBJ28CA 是一款双向瞬态电压抑制器（TVS），由 RUILON（瑞隆源）生产，封装为 DO-214AA（SMB）。器件专为保护敏感电子电路免受瞬态过压、静电放电（ESD）和快速瞬态脉冲（EFT）影响而设计，适用于电源线、信号线及接口保护场合。
二、主要电气参数
- 极性：双向（bidirectional），可同时抑制正、负向过压脉冲
- 反向截止电压 Vrwm：28 V
- 平均击穿电压（典型）：35.8 V
- 钳位电压 Vc：45.4 V（在标准脉冲条件下）
- 峰值脉冲电流 Ipp：13.2 A
- 峰值脉冲功率 Ppp：600 W（基准波形 10/1000 μs）
- 反向静态电流 Ir：1 μA（在 Vrwm 下）
- 工作温度范围：-55 ℃ ～ +150 ℃
- 防护等级/标准：符合 IEC 61000-4-2（ESD）与 IEC 61000-4-4（EFT）
三、性能特点
- 高能量吸收能力：600 W（10/1000 μs）脉冲能量处理能力，适合工业级浪涌环境。
- 低泄漏电流：工作时静态漏电低（1 μA），对电路影响小。
- 双向抑制：适用于交流或双向信号线路，无需分极安装。
- 宽温度范围：工业级温度范围确保恶劣环境下稳定工作。
四、典型应用场景
- 电源输入侧的浪涌保护（逆变器、开关电源等）
- 通信接口与数据线防护（RS-485、CAN 总线等差分线路）
- 工业控制设备、楼宇自控与安防系统的防雷浪涌保护
- 需要双向保护的交流或脉冲驱动电路
五、封装与热特性
DO-214AA（SMB）封装便于自动贴装与回流焊接，具有良好的机械强度与散热路径。布板时应考虑焊盘及散热铜箔以提高能量吸收与热耗散能力，避免器件因局部高温而降低可靠性。
六、设计与布局建议
- 将 TVS 靠近保护点（如接口、连接器）贴近放置，缩短环路长度以提高抑制效果。
- 与接地平面保持低阻抗良好连接，增大散热铜面积以分散冲击能量。
- 在高频或高速信号线上使用时，注意 TVS 的寄生电容对信号完整性的影响，必要时选择低容型产品或配合滤波设计。
七、使用注意事项与认证
- 确认器件钳位电压满足被保护电路的最大允许电压；45.4 V 的钳位值适合 28 V 等级周边具有一定耐压裕量的场合。
- 在高能量或重复冲击场合评估器件寿命与是否需要并联或级联保护方案。
- 产品通过 IEC 61000-4-2 / 4-4 等电磁兼容测试，适合抗静电与快速瞬态脉冲要求的应用环境。
订购型号：SMBJ28CA（RUILON/瑞隆源），封装：SMB（DO-214AA）。以上参数为典型性能指标，设计时请参考厂商详细数据手册以获得完整规范与绝对极限值。
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