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YANGJIE SMAJ12CA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
13
specifications
Core information
- Product name
- YANGJIE SMAJ12CA
- Type
- DO-214AC(SMA)
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YANGJIE
- Electronic Component
- SMAJ12CA
- Electronic Component
- 1
- Package
- DO-214AC(SMA)
- Electronic Component
- 0.127g
- Electronic Component
- 1
- Electronic Component
- BM0228719267
- Electronic Component
- Electronic Component
- Electronic Component
- 5000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMAJ12CA（SMA封装）产品概述
一、产品简介
SMAJ12CA是扬杰（YANGJIE）推出的一款双向瞬态电压抑制二极管（TVS），封装为SMA（DO-214AC）。该器件专为保护12V类电源和信号线路免受雷击、浪涌和瞬态过压损害而设计，具有快速响应、低漏电和高脉冲吸收能力的特点，适用于工业控制、通信设备、车载电子（需确认认证）、消费电子等场景。
二、主要电气参数
- 极性：双向（可对正负极性瞬态进行钳位保护）
- 反向截止电压 Vrwm：12V（连续工作电压）
- 击穿电压 Vbr：14.7V（典型）
- 钳位电压 Vcl：19.9V（在标称浪涌条件下）
- 峰值脉冲电流 Ipp：20.1A @ 10/1000μs
- 峰值脉冲功率 Ppp：400W @ 10/1000μs
- 反向电流 Ir：5μA（在 Vrwm 下的典型漏电）
这些参数表明器件在12V工作电压下能在短时间内吸收较大能量并将电压钳制在安全范围内，同时保持极小的静态功耗。
三、应用场景与选型建议
- 典型应用：12V电源总线保护、输入端口浪涌防护、CAN/RS-485等差分通信线路防护、外围接口（如点烟器、电源接口）抗浪涌设计。
- 选型要点：确保 Vrwm ≥ 系统正常直流工作电压；钳位电压需低于被保护器件的耐压极限；根据可能的能量来源选择合适的脉冲功率（Ppp）和脉冲电流（Ipp）。若用于车规场合，请确认器件是否具有相应车规认证。
四、封装与安装建议
SMA（DO-214AC）封装便于表面贴装和自动化生产。布局时应尽量将TVS靠近受保护元件或接口放置，走线短且宽，以减小串联电感和电阻；接地回路应尽可能短直，必要时增加多点接地或热 vias 以提升散热能力。SMA封装适用常规回流焊工艺，焊接参数请参考厂家数据手册。
五、可靠性与注意事项
该器件漏电小（典型5μA），工作时产生的热量随吸收能量增加，请在反复高能冲击场景下考虑热管理和后备保护（如熔断器、限流元件）。双向结构无极性限制，但在设计中仍应确认两端极性对称性和系统容忍度。最终应用前，建议依据实际环境做浪涌和温度应力测试，验证配合电路的整体防护能力。
如需详细的温度范围、封装尺寸、典型电流-电压曲线或焊接工艺参数，请参照扬杰官方数据手册或向供应商索取样片及测试报告。
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