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RUILON SMFJ8.0CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON SMFJ8.0CA
- Type
- RUILON
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RUILON
- Electronic Component
- SMFJ8.0CA
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.04g
- Electronic Component
- 1
- Electronic Component
- BM0264391786
- Operating Temperature
- 55℃~+155℃
- Voltage
- 13.6V
- Current(Ir)
- 10uA
- Voltage(VBR)
- 8.89V
- 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.
SMFJ8.0CA 产品概述
一、产品简介
SMFJ8.0CA 为 RUILON（瑞隆源）推出的双向瞬态电压抑制（TVS）二极管，旨在对电源线、数据线及信号线上的瞬态过压进行钳位保护。该器件在静态工作电压为 8V 左右时提供可靠的浪涌吸收能力，适用于工业、通信和汽车等需要抗浪涌、抗雷击或抗电磁干扰的应用场景。
二、主要特性
- 极性：双向（可在正负极性瞬变时工作，不用区分方向）
- 反向截止电压 Vrwm：8V（稳态工作电压）
- 击穿电压 VBR：8.89V（在规定测试条件下开始导通）
- 钳位电压 Vc：13.6V（在峰值脉冲电流时对瞬态电压的最大钳位值）
- 峰值脉冲电流 Ipp：14.7A（对应规定脉冲能量时的峰值电流能力）
- 峰值脉冲功率 Ppp：200W（器件能承受的瞬态功率，常见测试波形为 10/1000 μs 类）
- 反向漏电流 Ir：10 μA（在 Vrwm 条件下的低漏电）
- 工作温度范围：-55℃ ~ +155℃
- 封装：SOD-123FL（小型表贴，适合自动化贴装）
三、电气参数意义说明
- Vrwm（工作电压）代表器件在不触发钳位时应承受的最大直流电压；SMFJ8.0CA 适用于约 8V 的电源环境。
- VBR（击穿电压）为二极管进入导通状态的电压区间起始点，8.89V 表明其在略高于 Vrwm 时开始限制电压。
- 钳位电压为在规定脉冲电流下的电压上限，13.6V 表明在浪涌发生时保护侧电压被有效限制到该值附近。
- 峰值脉冲功率与电流反映器件吸收瞬态能量的能力，应根据系统脉冲形态和能量选择合适余量。
四、封装与可靠性
SOD-123FL 小尺寸封装兼顾热阻与安装密度，适合表面贴装工艺（SMT），支持常规回流焊温度曲线。器件设计满足高温工作（最高 155℃），在恶劣环境下仍保持稳定的钳位与漏电特性。
五、典型应用
- 电源输入和分配总线的浪涌保护
- 通信、信号接口（如 RS-485、CAN 总线）的双向过压保护
- 汽车电子辅助线路、车载娱乐与传感器接口的瞬态抑制
- 工业控制设备、电源适配器和消费类电子产品的防护元件
六、使用建议与注意事项
- 安装位置：尽量靠近被保护器件的输入端或连接端，走线短、铜箔宽以减小环路感应。
- 热管理：在高脉冲密度场合考虑加大铜箔面积或在底层做散热通孔以降低结温。
- 并联与备用：不建议长期以并联方式分享持续过流；若多次大能量冲击后器件工作状态应复核或更换。
- 搭配设计：必要时与限流电阻、熔断器或串联电感配合使用以提升系统整体可靠性。
- 存储与加工：遵循无铅回流参数，避免超温或潮湿条件下长期暴露；焊接后避免二次大功率冲击。
以上为 SMFJ8.0CA 的产品概述与选型使用要点。根据实际的系统脉冲波形和能量，建议在设计阶段结合厂方完整规格书确认各项测试条件及允许余量。
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