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TECH PUBLIC SMBJ28CA
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TECH PUBLIC SMBJ28CA
- Type
- TECH PUBLIC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TECH PUBLIC
- 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
- 0.19g
- Electronic Component
- 1
- Electronic Component
- BM0231019649
- Operating Temperature
- 55℃~+150℃
- Voltage
- 45.4V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 34.4V
- 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.
SMBJ28CA 产品概述
一、产品简介
SMBJ28CA 是 TECH PUBLIC（台舟电子）推出的一款双向瞬态电压抑制器（TVS），封装为 DO-214AA（SMB）。器件专为抑制瞬态过压和浪涌能量设计，适用于直流/交流两极性冲击保护场合，尤其适配以 24V 工况为主的电源与信号保护需求。
二、主要参数
- 类型：双向 TVS
- 反向截止电压 Vrwm：28V
- 击穿电压 Vbr（典型）：34.4V
- 钳位电压 Vc（测试条件下）：45.4V
- 峰值脉冲电流 Ipp：13.2A
- 峰值脉冲功率 Ppp：600W（10/1000μs 波形）
- 反向电流 Ir：1μA（在 Vrwm 条件下）
- 工作温度范围：-55℃ ~ +150℃
- 品牌：TECH PUBLIC（台舟电子）
- 封装：DO-214AA（SMB）
三、特性与优势
- 双向结构：能在正负方向对称钳位，适合交流或可逆极性系统。
- 低漏电流：1μA 的反向电流有助于在静态条件下降低功耗与误动作。
- 高能量吸收：600W（10/1000μs）脉冲能力，能承受常见工业和车载瞬态浪涌。
- 宽工作温度：适应严苛环境的工作与储存需求，可靠性高。
- 标准封装：SMB 封装便于自动贴片与波峰/回流焊接，适合批量生产。
四、典型应用
- 24V 工业电源总线、PLC 与继电器驱动电路的浪涌保护。
- 通信接口、串口与现场总线（如 RS-485）对共模/差模冲击的抑制。
- 电源适配器、逆变器输入端以及汽车电子次级回路的瞬态保护（需按规范验证）。
- 消费类与工业电子设备的输入/输出端口保护。
五、选型与使用建议
- 工作电压匹配：Vrwm=28V 适合额定系统电压 ≤24V，工作电压应低于额定 Vrwm。
- 布局要点：靠近受保护端口布局，尽量缩短与地/电源返回的导线长度，减少环路面积以提高抑制效果。
- 热设计：在高能量冲击场景下注意布局散热与可能的器件应力，必要时配合熔断器或限流元件。
- 兼容性：双向器件用于交流或可逆极性线路；直流单向保护场合请优先选单向 TVS。
- 工艺注意：符合 SMB 尺寸的焊盘与焊接工艺可保证可靠焊接，回流温度曲线遵循元件厂家推荐值。
六、可靠性与储存
- 建议在干燥、无腐蚀性气体环境中保存，避免长期超温或潮湿条件。
- 出厂后建议按标准的电子元器件存储与抗静电措施操作，生产与使用环境应符合常规电子组装规范。
如需原理图示例、封装尺寸图或更详细的浪涌测试曲线，可以提供进一步资料以便精确选型与布局设计。
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