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Jingdao Microelectronics SMF26CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Electronic SMF26CA
- Type
- Jingdao Microelectronics
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic
- Electronic Component
- SMF26CA
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.03g
- Electronic Component
- 1
- Electronic Component
- BM0227367157
- Operating Temperature
- 55℃~+150℃
- Voltage
- 42.1V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 31.9V
- 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.
SMF26CA TVS 二极管（SOD-123FL）产品概述
一、产品简介
SMF26CA 为晶导微电子推出的一款双向瞬态电压抑制二极管（TVS），封装为 SOD-123FL。器件专为抑制瞬态过电压与浪涌脉冲设计，具有较高的冲击吸收能力和宽工作温度范围（-55℃ 至 +150℃），适用于工业、通信及车载等受干扰环境中的过压保护。
二、主要性能参数
- 类型：双向 TVS 二极管（双向对称抑制）
- 反向截止电压 Vrwm：26V
- 击穿电压 V(BR)：31.9V
- 钳位电压 Vc（典型）：42.1V（对应 10/1000µs 浪涌条件）
- 峰值脉冲功率 Ppp：200W @ 10/1000µs
- 峰值脉冲电流 Ipp：4.8A @ 10/1000µs
- 静态反向电流 Ir：≤1µA（在 Vrwm 条件下）
- 工作温度：-55℃ ~ +150℃
- 封装：SOD-123FL（表面贴装）
三、特性亮点
- 双向结构：支持正负极性瞬态抑制，适合交流信号和对称通信接口防护。
- 高能量吸收能力：200W（10/1000µs）峰值功率，能有效应对较大能量的浪涌脉冲。
- 低漏电与高温稳定性：在额定反向电压下漏电仅约 1µA，且工作温度范围宽，适合严苛环境。
- 紧凑封装：SOD-123FL 提供小型化安装，适用于空间受限的 PCB 设计。
四、典型应用场景
- 电源输入和线路防护（工业电源、适配器输入）
- 串行通信接口（RS-232/RS-485、CAN 总线）及数据线防雷击/浪涌保护
- 汽车电子与车载设备（车身控制、传感器接口）
- 消费电子与工业控制设备的输入端防护
五、使用与布板建议
- 尽量将 TVS 器件靠近被保护的连接器或器件布置，缩短走线以降低寄生电感。
- 对尖峰能量较高的场合，配合串联电阻、共模电感或磁珠形成多级防护，提高整体吸收能力。
- 对需要散热的应用，可在 PCB 下方增加铜面积或通过热盲孔（thermal vias）帮助散热，避免长时间重复冲击导致损伤。
- 焊接和回流时遵循封装温度规范，避免超出器件耐热范围以保持长期可靠性。
六、可靠性与选型提示
SMF26CA 提供稳定的浪涌抑制性能，但在选型时应注意：若系统工作电压、浪涌能量或测试波形（如 8/20µs、10/1000µs）不同，应核对器件在相应条件下的钳位电压与能量承受能力。对于关键可靠性需求，可联系厂商获取更详尽的曲线数据、封装图及样片测试报告。晶导微电子的 SOD-123FL 封装便于批量 SMT 贴装，适合量产应用。
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