WMSIC Electronic Components

UMW SD05C

ModelSD05C
PackageSOD-323
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+

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Technical data

Product details

19 specifications

Core information

Product name
UMW SD05C
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
SD05C
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.025g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
200pF
Electronic Component
BM0228594273
Voltage
18V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
10uA

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

SD05C 产品概述

一、产品简介

SD05C 是由 UMW(友台半导体)推出的一款单路双向TVS瞬态抑制二极管,采用紧凑型SOD-323表面贴装封装,专为对电源线和信号线的静电放电(ESD)与脉冲干扰(EFT/浪涌)提供高效保护而设计。器件在有限封装下提供了可靠的瞬态能量吸收能力,适合消费电子、工业控制及通信接口的浪涌防护需求。

二、主要规格参数

  • 钳位电压(Vc):18 V(典型)
  • 击穿电压(Vbr):6 V
  • 反向截止电压(Vrwm):5 V
  • 峰值脉冲功率(Ppp):350 W @ 8/20 μs
  • 峰值脉冲电流(Ipp):17 A(典型测试条件)
  • 结电容(Cj):200 pF
  • 反向电流(Ir):10 μA(在 Vrwm 条件下)
  • 通道数:单路(Single)
  • 极性:双向(Bidirectional)
  • 类型:TVS 二极管(瞬态电压抑制)
  • 防护等级/通过标准:IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)
  • 封装:SOD-323(表面贴装)
  • 品牌/型号:UMW SD05C

三、产品特点

  • 高峰值能量吸收能力:在8/20 μs波形下可承受高达350 W的瞬态能量,适合一般浪涌与脉冲干扰情形。
  • 低漏电流:在正常工作电压下反向电流仅10 μA,有利于低功耗系统。
  • 双向保护:可同时抑制正向和反向的瞬态过压,适用于直流偏置两向或交流耦合场合。
  • 紧凑封装:SOD-323小体积,便于自动化贴装与空间受限的PCB设计。
  • 通用兼容性:满足IEC 61000-4-2/4-4等级测试要求,便于用于需通过抗扰性认证的产品中。

四、典型应用

  • 电源输入与低压电源轨过压保护(如5 V/12 V系统边缘保护)
  • 接口保护:串口、RS‑485、CAN 总线、信号线保护(注意200 pF 的结电容对高速信号可能影响)
  • 工业控制与自动化设备的EFT与ESD防护
  • 消费类电子、监控设备、智能终端的前端防护

五、PCB设计与使用建议

  • 器件应尽量靠近受保护的接口或器件放置,走线最短以减小寄生感抗和感应耦合。
  • TVS阴极/阳极(对地或对相线)应采用低阻抗的接地回路,若为隔离系统注意参考地处理。
  • 对高速信号线如USB/高速差分对,需注意200 pF结电容可能影响信号完整性,必要时改用低容型TVS或在系统中增加串联阻抗匹配。
  • 考虑在有连续或较高重复浪涌环境下进行热、能量裕量评估,避免超出器件脉冲额定后重复使用。

六、封装与订购信息

  • 封装:SOD-323,适配常规SMD贴片回流工艺。
  • 型号/品牌:SD05C / UMW(友台半导体)。
  • 订购时请确认封装与出货形式(卷盘/散装)以及是否需做额外筛选或老化测试。

七、合规与可靠性

SD05C 可通过标准的IEC 61000-4-2(静电放电)和IEC 61000-4-4(电快速瞬变)测试验证,制造与测试由厂方提供的规格书与典型特性曲线为准。建议在最终产品认证阶段结合实际系统做完整的抗扰度测试与寿命评估。

总结:SD05C 在紧凑SOD-323封装内提供了较高的瞬态能量吸收能力与低漏电特性,适用于要求空间受限且需抗ESD/EFT保护的应用场合。针对高速差分信号线使用时请注意其较高的结电容对信号的影响,并在电路布局上做好相应的匹配与接地处理。若需更详细的IV/CLAMP曲线与器件极限参数,建议索取厂家完整规格书(Datasheet)进行校核。

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