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TWGMC SMCJ15CA Bidirectional TVS Diode SMCJ15CA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TWGMC SMCJ15CA
- Type
- TWGMC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TWGMC
- Electronic Component
- SMCJ15CA
- Electronic Component
- 1
- Package
- SMC
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.37g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Electronic Component
- BM0230007216
- Operating Temperature
- 55℃~+150℃
- Voltage
- 24.4V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 18.5V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMCJ15CA — TWGMC 双向 TVS 瞬态抑制器产品概述
一、产品简介
SMCJ15CA 是台湾迪嘉（TWGMC）出品的单路双向瞬态电压抑制器（TVS），采用 SMC 封装（DO-214AB），专为保护对称（正负）脉冲过电压而设计。器件在反向工作电压（Vrwm）为 15V 时具有低泄漏电流、快速响应的钳位能力，适用于汽车、工业电源及数据/信号线的浪涌保护。
二、关键电气参数
- 极性：双向（对称钳位，适用于双向脉冲和交流扰动）
- 反向截止电压 Vrwm：15V
- 击穿电压 Vbr：18.5V（典型/最小值视生产批次）
- 钳位电压 Vc：24.4V（在 Ipp 条件下）
- 峰值脉冲电流 Ipp：61.5A（10/1000μs 波形）
- 峰值脉冲功率 Ppp：1.5kW（10/1000μs）
- 反向电流 Ir：≤1μA（在 Vrwm 条件下）
- 通道数：单路
- 工作温度范围：-55℃ ~ +150℃
三、主要特性与优势
- 高能量吸收能力：1.5kW（10/1000μs）突发浪涌可有效钳位，降低后端器件应力。
- 低泄漏：在 15V 工作电压下漏电流小于 1μA，有利于低功耗系统设计。
- 双向钳位：无需极性方向判断，可用于交流或差分线保护，安装更灵活。
- 商用级高温可靠性：工作温度覆盖 -55℃ 至 +150℃，适应工业及汽车环境。
四、典型应用场景
- 12V 汽车电源总线和车载电子模块的浪涌保护（对瞬态电压和负载断开引起的尖峰有效）。
- 工业控制电源、逆变及驱动设备的输入端防护。
- 通信、数据接口处的雷击/静电放电（ESD）和感应浪涌缓解。
- 电力设备、太阳能逆变器等需要抗脉冲能量的场合。
五、封装与机械信息
- 封装：SMC（DO-214AB）——表面贴装，便于高速自动贴片与回流焊接。
- 热阻与焊盘设计需参考 SMC 封装规范，以便有效散热并保证峰值能量吸收能力。
六、布局与使用建议
- 靠近需保护的输入端或连接器放置，尽量缩短焊盘到被保护节点的走线长度，以最小化串联阻抗和感应电压。
- 对于高能量脉冲应用，确保 PCB 有足够散热面积和可靠的接地回路，以便将能量导入公共地。
- 双向器件不区分极性，但在设计时仍应考虑器件与系统地的隔离和绝缘要求。
- 在高重复冲击场合，结合串联电阻或保险元件提高整体保护寿命。
七、可靠性与选型提示
- 在选择 SMCJ15CA 时，请确认试验波形（10/1000μs）与系统可能遭遇的冲击能量匹配；必要时选择更高 Ppp 等级或并联多个器件。
- 对温漂、老化敏感的设计，应做温度循环和浪涌疲劳测试，验证长期可靠性。
- 如需符合特定认证（例如汽车 AEC-Q101/ISO 等），请向供应商索要详细规格和认证文件。
SMCJ15CA 以其高能量吸收、低泄漏及双向钳位特性，是对 15V 等级电源和差分线路实施浪涌保护的可靠选择。在具体设计与量产前，建议基于实际工况参考器件完整数据手册并进行样机验证。
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