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GOODWORK SMAJ5.0CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- GOODWORK SMAJ5.0CA
- Type
- GOODWORK
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- GOODWORK
- Electronic Component
- SMAJ5.0CA
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.102g
- Electronic Component
- 1
- Electronic Component
- BM0225762821
- Operating Temperature
- 55℃~+150℃
- Voltage
- 9.2V
- Current(Ir)
- 800uA
- Voltage(VBR)
- 6.4V
- 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.
SMAJ5.0CA（SMA，DO-214AC）产品概述
一、产品简介
SMAJ5.0CA 是 GOODWORK（固得沃克）推出的一款双向 TVS 二极管，专为静电放电（ESD）和浪涌冲击保护设计。器件封装为 SMA（DO-214AC），适合通用电源线和信号线的浪涌抑制，能够在瞬态过电压出现时将能量钳位至安全电平，保护下游元器件免受损坏。
二、主要电气参数
- 反向工作电压 (Vrwm)：5V，适配典型 5V 系统的稳态耐压需求。
- 击穿电压 (Vz)：6.4V（典型），进入导通保护状态。
- 钳位电压 (Vc)：9.2V（典型），在峰值脉冲条件下对过电压进行限制。
- 峰值脉冲功率 (Ppp)：400W（脉冲测试条件下的峰值吸收能力）。
- 峰值脉冲电流 (Ipp)：43.5A（器件可承受的短时冲击电流峰值）。
- 反向电流 (Ir)：800µA（在 Vrwm 条件下的泄漏电流）。
- 极性：双向，适用于交流或双向浪涌事件。
- 工作结温度范围：-55℃ 至 +150℃（Tj），满足严苛环境下长期可靠性需求。
三、核心特性与优势
- 针对 5V 系统优化的静电与浪涌保护，Vrwm=5V 与 Vz=6.4V 的组合在不影响正常工作电压的同时能快速响应瞬态过电压。
- 双向结构可直接用于信号对称线路或交流电源线，无需区分正负向安装。
- SMA 封装（DO-214AC）具备良好散热和机械强度，方便波峰/回流焊接入板，适合自动化贴装生产。
- 宽温度范围（-55℃~+150℃）适合工业级与汽车电子等严苛环境应用。
四、典型应用场景
- USB、UART、CAN 等 5V 数据通信接口的浪涌与静电防护。
- 电源输入端和电池管理系统的过压、反向脉冲保护。
- 工业控制设备、楼宇自控、仪表以及要求高可靠性的嵌入式系统。
- 现场设备、接口面板、连接器附近作局部保护，延长系统寿命。
五、选型与 PCB 布局建议
- 将 TVS 器件尽量靠近受保护端口或连接器布置，缩短通路以降低寄生感抗。
- 在可能的情况下配合熔断器、串联电阻或阻尼网络使用，以分担能量并避免器件重复承受大能量。
- 注意散热路径与焊盘设计，SMA 封装需要良好热扩散以提升脉冲承受能力与可靠性。
- 对于对漏电流敏感的电路，应评估 800µA 的反向泄漏对系统待机功耗的影响，必要时选用漏电更低的型号。
六、包装与质量保证
GOODWORK 提供卷带、纸盘等工业级包装，适合 SMT 大批量生产。器件经过浪涌与温度循环等可靠性测试，可在工业、车规等要求较高的场合长期使用。选型时请参考厂商完整数据手册以获取脉冲测试条件和典型波形的详细说明，从而确保在目标应用环境下的性能匹配。
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