WMSIC Electronic Components

GOODWORK SMF16A

ModelSMF16A
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
GOODWORK SMF16A
Type
GOODWORK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GOODWORK
Electronic Component
SMF16A
Electronic Component
1
Package
SOD-123FL
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.043g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0231132818
Operating Temperature
55℃~+150℃
Voltage
26V
Current(Ir)
1uA
Voltage(VBR)
17.8V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SMF16A 产品概述

一、产品简介

SMF16A 是 GOODWORK(固得沃克)推出的一款高性能单路单向瞬态电压抑制器(TVS)。器件采用 SOD-123FL 封装,针对瞬态过压浪涌与静电放电(ESD)事件提供快速、可靠的钳位保护。典型电气参数包括反向截止电压 Vrwm = 16V、击穿电压 Vbr ≈ 17.8V、钳位电压 Vc = 26V、峰值脉冲功率 Ppp = 200W(10/1000μs 波形)、峰值脉冲电流 Ipp = 7.7A 与反向漏电流 Ir ≈ 1μA;器件工作结温范围宽 (-55℃ ~ +150℃),适用于工业级和汽车级温度环境。

二、主要特性

  • 单路、单向保护:在直流或极性确定的信号/电源线上具有更低的正向压降与更快的响应速度。
  • 低反向漏电流:典型 Ir ≈ 1μA(在 Vrwm 条件),有利于低功耗系统和待机电流严格的应用。
  • 高峰值能量吸收能力:200W(10/1000μs)峰值脉冲功率,能抑制较大能量的浪涌事件。
  • 紧凑封装:SOD-123FL 提供小尺寸、低剖面与良好焊接可靠性,便于高密度 PCB 设计和自动化贴装。
  • 宽温度工作范围:-55℃~+150℃(Tj),适用于严苛环境下长期可靠工作。

三、电气参数解读(关键值)

  • 反向截止电压 Vrwm = 16V:器件在此电压下正常截止,适合用于 12V/24V 等直流电源线路的保护(选择 Vrwm 略高于正常工作电压)。
  • 击穿电压 Vbr = 17.8V:当瞬态超过 Vrwm 并达到 Vbr 时,器件进入雪崩导通以限制电压上升。
  • 钳位电压 Vc = 26V(对应 Ipp 7.7A):在指定脉冲电流条件下,器件将被限制在约 26V,以保护后端电路免受更高电压冲击。
  • 峰值脉冲功率 Ppp = 200W(10/1000μs):衡量器件在规定脉冲波形下瞬时吸收能量的能力。
  • 峰值脉冲电流 Ipp = 7.7A:对应 Ppp 与钳位电压的测试电流值。
  • 反向电流 Ir = 1μA:在 Vrwm 下的典型漏电,适合对漏电敏感的应用。

四、封装与机械特征

  • 封装类型:SOD-123FL(薄型小封装,适合自动化贴片工艺)。
  • 引脚排列与焊盘建议:器件应尽量靠近被保护元件或连接器放置,焊盘与走线应保证良好散热与最低串联电阻。推荐短而宽的铜箔走线以提高集成散热性能和降低阻抗。

五、典型应用场景

  • 汽车电子:车载控制模块、收音机、照明线路(在满足温度等级与 AEC 要求时)。
  • 工业控制:PLC、驱动器、传感器电源线路的浪涌保护。
  • 通信设备与网络:电源输入、PoE 前端(需配合其他保护器件)、串口/接口保护。
  • 消费类电子:电源管理、充电器、笔记本/便携设备电源线防护。
  • 基础设施:电梯、监控、安防等需抵御雷击与大型浪涌干扰的系统。

六、设计与使用建议

  • Vrwm 选择原则:确保器件 Vrwm 略高于系统最大工作电压(含纹波),以避免在正常工作时触发钳位;例如用于 12V 系统时选 16V Vrwm 为常见方案。
  • 布局注意事项:将 TVS 靠近节点或连接器放置,尽量缩短走线长度以降低感性耦合与串联阻抗;同时保证良好的地回流路径以便快速泄放能量。
  • 热管理:在频繁脉冲或高能量环境下,评估焊盘面积和 PCB 铜厚以利于散热;必要时采用并联或额外的吸能元件分担能量。
  • 与其他保护器件配合:在要求更高能量等级或多次浪涌承受能力的系统中,建议与熔断器、限流电阻或金属氧化层压片等器件配合使用。
  • 可靠性与老化:反复高能脉冲可能导致性能退化,应根据系统寿命需求选择合适的器件余量或冗余方案。

七、贮存与可靠性注意

  • 储存条件应避免潮湿与高温,SOD-123FL 为贴片器件,建议按标准回流焊前干燥存放以避免吸湿导致焊接缺陷。
  • 在应用环境频繁遭受大型雷击或浪涌时,需评估器件的寿命与维护策略,必要时定期检测替换。

八、结论

SMF16A(GOODWORK,SOD-123FL)是一款针对中等能量瞬态事件设计的单向 TVS,具有低漏电、高钳位能力与良好的温度适应性。其 16V 的反向截止电压和 26V 的钳位特性非常适合为 12V/24V 类直流电源线及接口提供可靠保护。在布局、散热与选型上遵循合理原则,可在汽车、工业与通信等多种场景中实现长期稳定的过压与浪涌防护。若需更详细的曲线(I-V、钳位随电流变化、温度系数)或规格书,请向 GOODWORK 厂家索取完整 datasheet 以便做进一步的设计验证。

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