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Leiditech SMAJ5.0CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Leiditech SMAJ5.0CA
- Type
- LEIDITECH
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LEIDITECH
- Electronic Component
- SMAJ5.0CA
- Electronic Component
- 1
- Package
- DO-214AC(SMA)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.081g
- Electronic Component
- 1
- Electronic Component
- BM0229977200
- Voltage
- 9.2V
- Current(Ir)
- 100uA
- Voltage(VBR)
- 6.4V
- 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.
SMAJ5.0CA 产品概述
一、主要性能
SMAJ5.0CA 是 Leiditech（雷卯电子）出品的双向瞬态电压抑制二极管（TVS），针对 5V 工况的浪涌保护场景设计。主要参数如下：
- 极性：双向（Bidirectional）
- 反向截止电压 Vrwm：5V（工作电压）
- 击穿电压 VBR(min)：6.4V
- 钳位电压（Ipp 条件下）：9.2V（Ipp = 43.5A，10/1000μs）
- 峰值脉冲电流 Ipp（10/1000μs）：43.5A
- 峰值脉冲功率 Ppp（10/1000μs）：400W
- 反向漏电流 Ir：100μA（在 Vrwm 条件下）
- 封装：DO-214AC (SMA)
二、特点与优势
- 专为 5V 电源/信号线保护优化：Vrwm=5V，适合 USB、供电总线及 5V 逻辑接口的瞬态抑制。
- 双向设计：对正负极性瞬变均能钳制，适用于交流、差分信号和反向浪涌场合。
- 强抗浪涌能力：10/1000μs 条件下 400W 峰值功率与 43.5A 脉冲电流，能有效吸收雷击和开关瞬变能量。
- SMA 封装便于贴片组装并具备较好的散热与可靠性，适合量产 SMT 工艺。
三、典型应用
- 5V 电源轨（如 USB、板载 5V 总线）过压/浪涌保护
- 通信接口和差分信号线（CAN、RS-485、差分音频）防浪涌
- 工业控制与测控设备的输入输出端口保护
- 电源适配器、充电设备与汽车电子的瞬态抑制（依据系统要求确认级别）
四、布局与使用建议
- 布局：TVS 尽量靠近需保护的连接器或接口放置，导线与线迹尽量短、粗以减小寄生电感，双面过孔可提高热散与电流承载能力。
- 热管理：SMA 封装通过焊盘散热，必要时在焊盘周围增加铜箔面积或多个过孔以分散热量。
- 极性注意：双向器件无需区分正负极，安装方向可灵活选择，但仍应保证与线路最短路径连接。
- 测试与符合性：10/1000μs 浪涌测试是常用参考脉冲，实际系统应结合 IEC/ISO 等标准与具体试验条件评估。
五、选型与采购提示
- 若保护对象为直流单向电源（对地正向浪涌为主），可以对比单向 TVS 型号以获取更低的钳位电压；若需双极性保护或差分线保护，SMAJ5.0CA 为合适选择。
- 关注漏电流 Ir 对系统静态功耗的影响，100μA 在一些超低功耗场景下可能需评估。
- 订购时请确认完整型号与批次信息（品牌：Leiditech / 雷卯电子，封装：DO-214AC SMA），并索取厂商 Datasheet 与可靠性报告以完成设计验证。
SMAJ5.0CA 提供了兼顾体积与抗浪涌能力的工程解决方案，适用于众多 5V 级别的工业与消费类电子防护场景。对于关键应用，建议在样机阶段进行实际浪涌与温升验证，以确保长期可靠性。
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