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BORN SMFJ5.0A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BORN SMFJ5.0A
- Type
- BORN
- Minimum package
- 3000
Technical parameters
- Electronic Component
- BORN
- Electronic Component
- SMFJ5.0A
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.038g
- Electronic Component
- 1
- Electronic Component
- BM0227656412
- Voltage
- 9.4V
- Current(Ir)
- 150uA
- Voltage(VBR)
- 6.4V
- Electronic Component
- 3000
- Power(Ppp)
- 200W@10/1000us
- Current(Ipp)
- 21.7A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMFJ5.0A 产品概述
一、产品简介
SMFJ5.0A 是 BORN（伯恩半导体）推出的一款高能量瞬态电压抑制二极管（TVS），为单向结构，设计用于保护 5V 级别的电源和信号线路免受瞬态过压冲击。器件采用 SOD-123FL 小型低轮廓封装，集高峰值脉冲功率与较低反向漏电于一体，适合空间受限且需高度防护的电子系统。
二、主要电气参数
- 极性：单向（适用于有明确正负极的直流线路）
- 反向截止电压 VRWM：5V（针对 5V 电源轨优化）
- 击穿电压 Vbr：6.4V（典型）
- 钳位电压 Vc：9.4V（在标准 10/1000μs 测试波形下）
- 峰值脉冲电流 Ipp：21.7A（对应 200W@10/1000μs）
- 峰值脉冲功率 Ppp：200W（10/1000μs）
- 反向漏电流 Ir：150μA（在 VRWM 条件下）
- 类型：TVS（瞬态抑制二极管）
- 封装：SOD-123FL（小尺寸、易贴片）
以上参数使 SMFJ5.0A 在面对雷击浪涌、开关瞬变和静电放电等脉冲能量时，能够迅速夹紧电压并吸收能量，从而保护下游器件不受损害。
三、典型应用场景
- USB、外围设备及 5V 电源轨保护
- 工业控制与仪表的输入/输出保护
- 通信设备和接口线路（如串口、I/O 接口）
- 消费电子、安防及家电的本地浪涌防护
因其单向特性，适合用于对直流电源或单向信号线的过压抑制。
四、封装与安装建议
SOD-123FL 封装体积小、热阻适中，便于在 PCB 上靠近被保护端口或连接器布置。建议：
- 尽量靠近被保护节点放置，以缩短走线感应环路；
- 使用符合厂商推荐的焊盘和回流温度曲线，避免长期高温导致器件性能退化；
- 对于连续或高频次的脉冲事件，考虑良好的散热和必要的并联能量分担方案。
五、选型与注意事项
- 若系统工作电压恒为 5V，SMFJ5.0A 的 VRWM 与击穿特性匹配良好；但若存在较低漏电要求，应注意 150μA 的反向漏电可能对超低功耗电路有影响；
- 钳位电压 9.4V 能在大多数 5V 系统中保护下游器件，但对一些对瞬态电压敏感程度极高的元件，需评估是否需更低钳位值或增加其他保护级别；
- 峰值功率 200W（10/1000μs）适合一次性或间歇性的高能脉冲，连续高频脉冲会加速器件老化，应遵循能量与频率限制。
六、可靠性与合规
BORN 品牌产品在设计上考虑工业应用的可靠性，常规出货前会经过波峰/回流焊适应性与静电防护测试。建议在最终产品中进行系统级浪涌与静电试验（如 IEC 和 IEC 61000 系列规范测试）以验证整体保护效果。
总结：SMFJ5.0A 提供了针对 5V 轨的高能量、单向瞬态抑制解决方案，体积小、易于贴片，适用于多种消费与工业电子保护场合。在选型时需综合考虑漏电、钳位电压与系统耐受能力，合理布置与散热，以获得可靠的防护性能。
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