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MSKSEMI SMAJ24CA
Configuration
1 options
Configuration
Electronic Component
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MSKSEMI SMAJ24CA
- Type
- MSKSEMI
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MSKSEMI
- Electronic Component
- SMAJ24CA
- Electronic Component
- 1
- Package
- SMA
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.1g
- Electronic Component
- 1
- Electronic Component
- BM0265596804
- Voltage
- 38.9V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 29.5V
- Electronic Component
- Electronic Component
- Electronic Component
- 2000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMAJ24CA 产品概述
一、产品简介
SMAJ24CA（品牌：MSKSEMI / 美森科）是一款SMA封装的双向瞬态电压抑制器（TVS），针对24V工作电压系统提供过压及浪涌保护。其设计用于吸收工业、通信与车辆电源中的瞬态脉冲能量，保护下游敏感电子器件免受雷击、开关瞬变和静电放电等干扰。
二、主要电气参数
- 钳位电压（Vclamp）：38.9 V（在规定脉冲条件下）
- 击穿电压（Vbr）：29.5 V
- 反向截止电压 Vrwm（稳态耐受电压）：24 V
- 峰值脉冲功率 Ppp：400 W @ 10/1000 μs
- 峰值脉冲电流 Ipp：10.29 A @ 10/1000 μs
- 极性：双向（可对正负极性瞬变同时吸收）
- 反向漏电流 Ir：≤1 μA（在 Vrwm 条件下）
- 封装：SMA（表面贴装）
三、特点与优势
- 双向保护：无需考虑极性，适合交流或可能出现反向瞬变的电路。
- 低漏电流：典型1 μA，有助于在待机或低功耗系统中减少能耗。
- 高能量吸收能力：400 W（10/1000 μs）可处理较长持续时间的浪涌，适合工业环境。
- SMA 封装：体积小、成本低、易于在SMT生产线上安装，方便批量应用。
四、典型应用场景
- 24 V 工业控制与PLC电源保护
- 通信设备线缆防护（端口、接口）
- 汽车及商用车辆的24V电源瞬态抑制（注：若用于车规场合，请确认器件是否满足 AEC‑Q101 等认证）
- 电机驱动与开关电源的输入/输出防护
五、选型与使用建议
- 确认系统最大工作电压：Vrwm=24 V 时适配标称24 V系统；若系统可能出现稳态过压，应选择更高 Vrwm 的型号或增加限制器件。
- 钳位电压匹配：在被保护器件能承受的最大电压下，Vclamp（38.9 V）应低于被保护元件的最大耐压。
- 浪涌能力评估：根据系统可能承受的脉冲能量选择合适的 Ppp 与 Ipp 余量；必要时并联多个器件或配合熔断器/限流电阻使用。
- 布局建议：靠近受保护端口放置TVS，走线最短、最宽、接地回路尽量短；对高能量应用增加散热铜箔和过孔以利散热。
- 温度与可靠性：工作温度范围和寿命请参照厂家数据手册，严苛环境下考虑选用有可靠性认证的器件版本。
六、封装与测试
- 封装：SMA 表面贴装，适合自动贴装流程。
- 建议测试：按 IEC 61000‑4‑5（浪涌）、IEC 61000‑4‑2（静电放电）等标准对整机进行验证，确认在实际组合条件下的保护效果。
- 采购注意：确认是否需要带前缀/后缀的具体封装与检验批次号，索取MSKSEMI的完整数据手册以获得额定值与典型曲线。
总结：SMAJ24CA 为面向24V系统的高能量、低漏电、双向TVS 保护器件，适合工业与通信等场合的浪涌防护。选用前应结合系统的最大允许电压、浪涌能量和环境要求做全面评估，并严格按照厂家手册与标准进行布局与测试。
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