WMSIC Electronic Components

GOODWORK SMF5.0CA

ModelSMF5.0CA
PackageSOD-123FL
BrandGOODWORK
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
GOODWORK SMF5.0CA
Type
GOODWORK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GOODWORK
Electronic Component
SMF5.0CA
Electronic Component
1
Package
SOD-123FL
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.041g
Electronic Component
1
Electronic Component
BM0229305744
Operating Temperature
55℃~+150℃
Voltage
9.2V
Current(Ir)
400uA
Voltage(VBR)
6.4V
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.

SMF5.0CA 产品概述 — GOODWORK(固得沃克)TVS瞬态抑制二极管

一、产品简介

SMF5.0CA 为双向(bidirectional)TVS(瞬态电压抑制)二极管,针对5V工作电压的电源与信号线提供瞬态浪涌和电压尖峰保护。器件采用紧凑的 SOD-123FL 封装,适合空间受限但对浪涌保护有较高要求的消费电子、工业控制和通信设备。GOODWORK(固得沃克)品牌保证一致的制造工艺与一致性,适用于需要稳健过压钳位和可重复防护能力的场合。

二、主要特性

  • 双向结构,适用于直流和交流/可反向浪涌场合;无需额外极性标注即可保护双向脉冲。
  • 反向截止电压 Vrwm = 5V,适配典型 5V 电源轨。
  • 钳位电压 Vcl = 9.2V,在冲击时将过压钳制至安全范围,保护后端电路免受高电压损坏。
  • 峰值脉冲电流 Ipp = 21.7A,能承受短时高幅度浪涌脉冲。
  • 峰值脉冲功率 Ppp = 200W,器件在规定的脉冲条件下提供高能量吸收能力。
  • 击穿电压(Vbr)≈ 6.4V,表征器件进入雪崩导通的阈值。
  • 反向泄漏电流 Ir = 400 µA(典型/最大值通常在 Vrwm 条件下测得),在待机或正常工作时的静态损耗较小。
  • 工作结温范围 -55℃ 至 +150℃(Tj),适应宽温区工业级应用。

三、典型应用场景

  • USB、串口、I/O 接口及 5V 电源线的浪涌与ESD保护;
  • 工业控制器与PLC 的输入/输出端口防护;
  • 通信设备、路由器、机顶盒等消费类设备的板级保护;
  • 汽车电子非关键车载子系统(需注意汽车级认证要求);
  • 任何需在空间受限处提供高能量瞬态抑制的场合。

四、封装与布局建议

  • SOD-123FL 小型塑封,利于高密度 PCB 布局;推荐在被保护引脚与接地平面之间保持最短、最粗的回流路径以降低寄生电感。
  • 将 TVS 置于信号或电源进入点的最靠近位置,靠近受保护器件连接地线,避免长走线引入额外峰值电压。
  • 针对双向器件,确保对称走线与良好接地,以便在正/反向浪涌时均能快速导流。

五、选型与使用要点

  • Vrwm(反向截止电压)应等于或略高于系统正常工作电压;SMF5.0CA 的 Vrwm=5V 适合 5V 系统,但在接近 Vrwm 时会有 Ir(400 µA)泄漏,需考虑功耗与偏流影响。
  • 钳位电压 9.2V 为冲击时的限制值,确认后端电路能承受该短时电压。
  • 峰值脉冲功率与电流标称为在指定脉冲条件下测得,实际应用中需注意脉冲波形、重复频率和器件热耗散,必要时采用并联或选择更高功率器件。
  • 双向器件适合有反向极性或交流尖峰的应用;若仅在单极性直流系统保护,单向型可能提供更低的钳位电压。

六、可靠性与注意事项

  • 器件耐受多次短脉冲,但长期重复大能量冲击会导致寿命下降,设计上应避免频繁超额冲击。
  • 焊接时遵循封装的回流焊温度曲线,避免长时高温引起器件参数漂移;出厂前应参考 GOODWORK 的焊接和回流建议。
  • 在高湿、高腐蚀环境下,应采取防护涂层或物理屏蔽以延长表面可靠性。

七、总结

SMF5.0CA(GOODWORK,SOD-123FL)是一款为 5V 系统设计的双向 TVS 器件,具备 200W 峰值脉冲能量和 21.7A 峰值脉冲电流的瞬态抑制能力,钳位电压 9.2V、击穿 6.4V、反向泄漏 400 µA,工作温度范围 -55℃ 至 +150℃。在布线、散热和选型上遵循上述建议,可为消费电子、工业和通信设备提供可靠的板级过压与浪涌保护。若需进一步验证在特定脉冲波形或系统条件下的表现,建议参考厂方完整数据手册或联系 GOODWORK 技术支持获取应用曲线与测试条件。

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