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GOODWORK SMAJ12CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- GOODWORK SMAJ12CA
- Type
- GOODWORK
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- GOODWORK
- Electronic Component
- SMAJ12CA
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.097g
- Electronic Component
- 1
- Electronic Component
- BM0225762811
- Operating Temperature
- 55℃~+150℃
- Voltage
- 19.9V
- Current(Ir)
- 5uA
- Voltage(VBR)
- 13.3V
- 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.
SMAJ12CA 产品概述
一、产品简介
SMAJ12CA 是一款双向瞬态电压抑制器（TVS），封装为 SMA（DO-214AC），由 GOODWORK（固得沃克）生产，专为抑制线路上的静电放电（ESD）和浪涌突波而设计。器件在宽温度范围内（-55℃～+150℃@Tj）保持稳定保护性能，适用于直流/交流电源线、通信接口及工业控制等场合的过压保护。
二、主要参数
- 钳位电压（Vc）：19.9 V
- 反向击穿电压（Vbr）：13.3 V
- 反向工作电压（Vrwm）：12 V
- 峰值脉冲功率（Ppp）：400 W（典型测试条件下）
- 峰值脉冲电流（Ipp）：20.1 A
- 反向漏电流（Ir）：5 μA
- 极性：双向
- 封装：SMA（DO-214AC）
三、主要特性
- 双向结构，能对正负极性瞬态同等抑制，适合交流或双向信号线保护。
- 低钳位电压（19.9 V），在发生浪涌时能有效限制电压峰值，保护后端器件。
- 低漏电（5 μA），不会对电路静态工作影响明显。
- 宽温工作能力，适合苛刻环境与工业级应用。
四、典型应用场景
- 开关电源输入保护与直流电源轨防护（12 V 系统）。
- 通信端口、RS‑232/RS‑485、CAN 总线等接口防护。
- 工业控制设备、仪器仪表及汽车电子的瞬态过压防护（依据规范确认）。
- 终端设备与外围模块的雷击浪涌、静电放电缓解。
五、使用与选型要点
- 选型时确认工作电压 Vrwm 与系统标称电压匹配（本型号 Vrwm=12 V，适用于 12 V 级保护）。
- 验证峰值脉冲能量与应用中可能出现的浪涌幅值匹配，必要时并联或选用更高功率 TVS。
- PCB 布局：靠近保护端口、走短而粗的走线以降低串联电感，减小钳位电压升高；为双向器件预留对称焊盘。
- 热管理：高能量冲击时器件温升大，需考虑散热路径，避免多次大幅冲击对器件寿命的影响。
六、可靠性与封装注意事项
- 封装为 DO‑214AC（SMA），便于自动贴装及后焊接；在回流焊工艺中应遵循厂家推荐的温度曲线以保证可靠性。
- 对于关键应用，建议在最终设计中进行实测（包括 ESD、浪涌和温升测试），并在产品说明书中参考 GOODWORK 提供的典型波形与测试条件。
总结：SMAJ12CA 提供了针对 12V 级别系统的高能量双向浪涌与静电保护方案，特点为低钳位、低漏电与高峰值吸收能力，适合工业与通信类电路的过压防护。
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