WMSIC Electronic Components

DOWO SD05C-2B SD05C

ModelSD05C-2B
PackageSOD-323
BrandDOWO
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
DOWO SD05C-2B
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
SD05C-2B
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.031g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
35pF
Electronic Component
BM0264866308
Operating Temperature
55℃~+125℃
Voltage
9V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2

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

SD05C-2B 双向ESD防护器件产品概述

SD05C-2B是东沃(DOWO)针对敏感电子设备静电放电(ESD)及电快速瞬变脉冲群(EFT)干扰防护推出的单路双向器件,具备宽温适应性、高脉冲耐受能力与低信号干扰特性,广泛适配多领域应用场景。

一、产品定位与核心设计目标

SD05C-2B定位为通用型高性价比ESD防护器件,核心设计围绕三大目标:

  1. 不干扰电路正常工作:通过低漏电流、低结电容设计,避免影响信号传输与系统功耗;
  2. 快速响应防护:ESD脉冲触发时迅速导通,将电压钳位至安全范围,保护后端敏感芯片;
  3. 宽环境适配:满足-55℃~+125℃宽温范围,适配工业、汽车等严苛应用场景。

二、关键性能参数深度解析

2.1 防护能力参数

  • 反向截止电压(Vrwm=5V):正常工作状态下器件处于截止态,不影响电路信号与电源电压;
  • 击穿电压(Vbr=6V):接近工作电压阈值,ESD脉冲触发时快速击穿导通(响应时间<1ns),实现瞬时防护;
  • 钳位电压(Vc=9V):脉冲峰值时将电压限制在9V以内,远低于一般芯片耐压极限(如CMOS芯片耐压多为10V以上),有效避免器件损坏;
  • 峰值脉冲电流(Ipp=20A)、峰值脉冲功率(Ppp=300W):可承受多次高强度ESD脉冲冲击(如人体放电模式HBM下8kV、机器放电模式MM下1kV),防护可靠性高。

2.2 电气与信号兼容性参数

  • 反向漏电流(Ir=500nA):漏电流极低,对电路静态功耗影响可忽略,适合电池供电的便携式设备;
  • 结电容(Cj=35pF):对低频至中频信号(如音频、低速数字信号、电源线路)传输干扰极小,仅需注意高频射频信号场景下的适配性。

2.3 环境与标准参数

  • 工作温度范围(-55℃~+125℃):覆盖工业级与汽车级温度需求,可在极端温差环境下稳定工作;
  • 防护标准符合:IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT),通过国际电磁兼容(EMC)认证,确保设备抗干扰能力。

2.4 结构与封装参数

  • 双向极性:无需区分正负极,安装便捷,降低生产工艺复杂度;
  • 单路通道:适配单信号线路或电源线路的独立防护;
  • SOD-323封装:超小型表面贴装封装(尺寸约1.6mm×0.8mm×0.6mm),节省PCB空间,适合高密度集成设计(如智能手机主板、小型工业模块)。

三、封装与可靠性设计亮点

SD05C-2B采用的SOD-323封装具备三大优势:

  1. 焊接兼容性:支持回流焊、波峰焊等主流表面贴装工艺,适配自动化生产;
  2. 机械强度:封装结构紧凑,抗振动、抗冲击能力强(符合IPC-A-610标准),适合移动设备或工业振动环境;
  3. 环保性:符合RoHS无铅环保要求,满足全球市场准入标准。

四、典型应用场景梳理

SD05C-2B的性能特性使其适配多领域防护需求:

  1. 消费电子:智能手机、平板电脑、智能手表的USB接口、音频接口、充电端口防护,保护内部基带芯片、音频解码芯片;
  2. 工业控制:PLC、温度/压力传感器、工业触摸屏的信号线路防护,应对工业现场的静电与电磁干扰;
  3. 汽车电子:车载信息娱乐系统(车机、导航)、车载摄像头、胎压监测传感器的接口防护,宽温范围适配汽车舱内/舱外环境;
  4. 通信设备:路由器、交换机、光纤收发器的以太网端口、电源端口防护,确保数据传输稳定,避免ESD导致的设备宕机。

五、品牌与质量保障体系

东沃(DOWO)作为专业电子防护器件品牌,SD05C-2B经过严格可靠性测试:

  • 温度循环测试(-55℃~+125℃,1000次循环):性能无衰减;
  • ESD脉冲寿命测试(HBM模式8kV,1000次冲击):钳位电压与漏电流无明显变化;
  • 湿度测试(85℃/85%RH,1000小时):电气性能稳定。

同时,品牌提供应用电路设计建议等技术支持与售后保障,确保产品实际应用可靠性。

总结

SD05C-2B凭借双向防护、宽温适配、低干扰、小封装等核心优势,成为敏感电子设备ESD防护的高性价比选择。其覆盖的多领域应用场景与符合国际标准的防护能力,可有效降低设备因静电放电导致的故障风险,提升产品稳定性与使用寿命。

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