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Jingdao Microelectronics SMF13A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Electronic SMF13A
- Type
- Jingdao Microelectronics
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic
- Electronic Component
- SMF13A
- 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
- BM0228061222
- Operating Temperature
- 55℃~+150℃
- Voltage
- 21.5V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 15.9V
- 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.
SMF13A（13V）SOD-123FL TVS二极管产品概述
一、核心参数与特性
- 类型：瞬态电压抑制二极管（TVS），单向
- 标称钳位电压：21.5V（典型）
- 反向工作电压 Vrwm：13V
- 击穿电压（Vbr）：15.9V
- 峰值脉冲功率 Ppp：200W（10/1000μs 波形）
- 峰值脉冲电流 Ipp：9.3A（10/1000μs）
- 反向漏电流 Ir：≤1μA
- 工作温度范围：-55℃ 至 +150℃
- 封装：SOD-123FL
- 品牌：晶导微电子
二、工作原理与关键参数说明
SMF13A 为单向 TVS，针对直流或有明显极性的线路提供瞬态浪涌吸收与钳位保护。Vrwm（13V）为器件在不导通状态下允许的最大持续反向电压；当线路出现过压且达到击穿电压（约15.9V）时器件进入导通，吸收浪涌能量并将电压钳位到约21.5V，以保护后端电路。Ppp 与 Ipp 在 10/1000μs 波形下给出，适合雷击或长脉冲能量抑制场景。低漏电（1μA）有利于高阻抗或省电电路应用。
三、封装与热、环境适应性
SOD-123FL 封装体积小、占板面积少，适合空间受限应用。器件高达 +150℃ 的工作上限，适用于高温环境和对温度稳定性要求较高的工业场合。实际应用需注意封装的热阻和 PCB 散热路径，长时间或重复的大电流冲击应考虑热应力累积。
四、典型应用场景
- 通信基站、网口及数据线路的浪涌保护
- 工业控制与电源输入端防护
- 电源模块、适配器和充电设备的过压抑制
- 消费电子设备与接口保护（USB、串口等）
- 在符合系统要求下可用于车载电子的瞬态防护（需按整车规范验证）
五、使用建议与 PCB 布局注意
- 器件应尽量靠近防护目标的输入端或外部连接器放置，以缩短保护路径和降低寄生电感。
- 单向器件须按电路极性正确焊接；若需双向保护请选择双向系列产品。
- 若可能出现高能量或多次冲击，考虑在保护器件前加入熔断器、限流电阻或使用额定更高 Ppp 的器件以分担能量。
- 注意工作电压与 Vrwm 的裕量，长期工作电压接近 Vrwm 时会增加漏电与应力，建议留出适当余量。
- 对热敏感电路增加散热铜箔或导热通孔，避免因吸收能量导致局部过热。
六、可靠性与选型要点
SMF13A 以低漏电、较高峰值功率和宽温度范围为特点。选型时重点考虑：
- 系统最大工作电压应低于 Vrwm（13V），并留有安全裕量；
- 根据预期浪涌能量对比 Ppp（200W@10/1000μs）和单次峰值电流 Ipp（9.3A），必要时并联或选型更高能量等级；
- 若有高速信号或对电容敏感的应用，需向供应商确认器件电容参数；
- 对于车规或需要认证的项目，按系统规范做全套可靠性验证与温度循环测试。
产品型号：SMF13A，封装 SOD-123FL，供应商：晶导微电子。该器件适合需要在紧凑空间内实现稳健直流瞬态保护的场合，能提供快速响应、低漏电和良好温度适应性的防护解决方案。
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