Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BORN SMFJ14CA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BORN SMFJ14CA
- Type
- BORN
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BORN
- Electronic Component
- SMFJ14CA
- Electronic Component
- 1
- Package
- SOD-123F
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.043g
- Electronic Component
- 1
- Electronic Component
- BM0230605602
- Operating Temperature
- 55℃~+150℃
- Voltage
- 23.2V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 17.2V
- 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.
SMFJ14CA 产品概述
一、产品简介
SMFJ14CA 是一款双向瞬态电压抑制二极管（TVS），由 BORN（伯恩半导体）生产，采用 SOD-123F 小型封装。器件设计用于吸收和钳位瞬态浪涌能量，保护敏感电子电路免受浪涌、雷击、电感切换等瞬态过压的损害。其典型工作环境温度范围为 -55℃ 到 +150℃，适应宽温度工作需求。
二、关键电气参数
- 反向工作电压 Vrwm：14V（适用于 12V 级系统的稳态防护）
- 击穿电压 Vbr：约 17.2V
- 钳位电压 Vc：约 23.2V（在峰值脉冲条件下）
- 峰值脉冲功率 Ppp：200W（试验波形 10/1000μs）
- 峰值脉冲电流 Ipp：8.6A（对应峰值功率条件）
- 反向漏电流 Ir：约 1μA（在 Vrwm 条件下）
- 极性：双向（对正负瞬态均能抑制）
三、典型应用场景
- 汽车电源总线、车载控制模块（12V 系统瞬态保护）
- 工业控制设备的电源与信号线防护
- 通信设备、接口端口（如 CAN、RS-485）瞬态抑制
- 消费电子中对电源或双向浪涌保护的需求点
四、封装与可靠性要点
SMFJ14CA 的 SOD-123F 封装体积小、易于贴片组装，适合空间受限的板级保护设计。器件工作温度范围宽，适合恶劣环境使用。为保证长期可靠性，建议在电路板上将 TVS 放置于被保护器件的近端，走线尽量短且粗，便于快速导流和散热。
五、设计与使用注意事项
- 双向器件无需区分极性，但在布局时仍应注意与保护对象的相对位置与回流路径。
- 峰值参数为短时脉冲能力，重复浪涌或高能量冲击会加速老化，应根据实际工况选择合适的余量或并联/并用更高能量器件。
- 焊接与装配应遵循封装供应商推荐的回流工艺与湿敏等级（MSL），以保证焊接可靠性与热稳定性。
- 参考实际系统电压与瞬态幅度，确认 Vrwm、Vc 与被保护器件的耐压匹配，以避免误触发或保护不足。
六、总结
SMFJ14CA 提供针对 14V 级电源及双向浪涌的稳定抑制性能，钳位电压约 23.2V、200W 峰值脉冲能力和宽温工作范围，使其成为汽车电子、工业与通信等领域板级瞬态保护的合适选择。在实际应用中，合理的 PCB 布局与选型余量能够显著提升保护效果与器件寿命。
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