WMSIC Electronic Components

UMW SMF5.0A

ModelSMF5.0A
PackageSOD-123FL
BrandUMW
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
UMW SMF5.0A
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
SMF5.0A
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
Electronic Component
BM0264483828
Voltage
9.2V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
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.

UMW SMF5.0A 单向TVS管产品概述

一、产品定位与核心价值

UMW SMF5.0A是一款专为静电放电(ESD)和电快速瞬变脉冲群(EFT)防护设计的单向瞬态抑制二极管(TVS),属于SMF系列表面贴装器件。其核心价值在于为敏感电子电路提供快速、精准、可靠的过压防护——当电路遭遇静电冲击或浪涌干扰时,器件可在纳秒级时间内导通,将电压钳位在安全范围,避免后端IC、传感器等元件失效,广泛适配消费电子、通信、工业控制等领域的小型化设计需求。

二、关键电气参数解析

SMF5.0A的参数经过精准调校,平衡了防护性能与电路兼容性:

  1. 工作阈值与触发:反向截止电压(Vrwm)为5V,确保电路正常工作(≤5V)时无漏电流干扰;反向击穿电压(Vbr)6.4V是过压触发起点,电压超此值时器件快速导通。
  2. 钳位与耐受能力:峰值钳位电压(Vc)9.2V,可将浪涌电压稳定在后端元件的最大耐受阈值内;10/1000μs浪涌波形下,峰值脉冲功率(Ppp)达200W,峰值脉冲电流(Ipp)21.7A,具备较强的冲击耐受能力。
  3. 低功耗与标准合规:反向截止电压下漏电流(Ir)仅400μA,不影响电路正常功耗;防护性能符合IEC 61000-4-2(ESD) 和 IEC 61000-4-4(EFT) 国际标准,满足电磁兼容(EMC)认证要求。

三、封装与可靠性设计

SMF5.0A采用SOD-123FL表面贴装封装,适配高密度电路设计:

  • 小型化适配:封装尺寸紧凑(典型1.6mm×0.8mm×0.6mm),适合智能手机、智能穿戴等设备的窄间距PCB布局;
  • 散热优化:封装结构强化了散热路径,可快速 dissipate 脉冲功率,避免器件过热失效;
  • 极性明确:单向设计,丝印标识清晰(如“A端为阳极”),安装时可快速识别极性,确保防护方向正确。

四、典型应用场景

SMF5.0A的参数特性使其覆盖多领域过压防护需求:

  1. 消费电子接口:智能手机、平板电脑的USB Type-C、HDMI、音频接口,应对日常人体静电接触;
  2. 通信设备端口:路由器、交换机的以太网端口、射频接口,抵御EFT和浪涌干扰;
  3. 工业控制模块:PLC输入输出端口、传感器节点,适应工业环境中的电磁干扰;
  4. 医疗电子设备:小型监护仪、便携式医疗仪器的敏感电路,保障设备可靠性与安全性。

五、品牌与选型优势

作为UMW(友台半导体)的核心TVS产品,SMF5.0A具备:

  • 品牌可靠性:UMW是国内功率半导体领域知名厂商,产品一致性好,批量供货稳定;
  • 系列兼容性:与SMF系列其他型号(如SMF3.3A、SMF6.0A)引脚兼容,方便工程师快速替换选型;
  • 成本效益:在保障防护性能的前提下,性价比突出,适合大规模量产应用。

SMF5.0A凭借紧凑封装、精准钳位和国际标准合规性,成为敏感电路过压防护的优选器件,可有效降低产品因ESD/EFT导致的失效风险。

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