WMSIC Electronic Components

DOWO ESD9B5.0ST5G

ModelESD9B5.0ST5G
PackageSOD-923
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
DOWO ESD9B5.0ST5G
Type
DOWO
Minimum package
8000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
ESD9B5.0ST5G
Electronic Component
1
Package
SOD-923
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.01g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
15pF
Electronic Component
BM0231110379
Voltage
8V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
500nA

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

ESD9B5.0ST5G 产品概述

一、产品简介

ESD9B5.0ST5G 是 DOWO(东沃)推出的一款单路双向 TVS 二极管,专为保护敏感电子接口免受静电放电(ESD)、电快速瞬变(EFT)与浪涌(Surge)冲击而设计。器件采用小型 SOD-923 封装,体积小、性能稳定,适合空间受限且对信号完整性有要求的系统。

二、主要规格(典型)

  • 钳位电压(Vc):8 V
  • 击穿电压(Vbr):6 V
  • 反向截止电压(Vrwm,稳态工作电压):5 V
  • 峰值脉冲功率(Ppp):70 W(8/20 μs)
  • 峰值脉冲电流(Ipp):8 A(8/20 μs)
  • 结电容(Cj):15 pF(典型)
  • 反向电流(Ir):500 nA(在 Vrwm 下)
  • 通道数:单路;极性:双向
  • 类型:TVS 二极管
  • 封装:SOD-923(小型表贴)
  • 防护等级/标准:符合 IEC 61000-4-2、IEC 61000-4-4、IEC 61000-4-5 要求

三、产品特点

  • 小体积封装,便于高密度 PCB 布局与自动化贴装;SOD-923 对应常见生产流程。
  • 双向工作模式,适合用在数据线、差分线及可能正负瞬变的电路中(如 USB、串口等)。
  • 低结电容(~15 pF),对高速信号线影响小,有利于保持信号完整性与带宽。
  • 高能量吸收能力(70 W/8/20 μs),可承受典型人体模型与工业脉冲水平的冲击。
  • 极低漏电流(500 nA),对电池供电及低功耗设计友好。

四、典型应用

  • 手机、平板等便携设备的 I/O 接口保护(USB、耳机、充电口等);
  • 工业控制与通信设备的信号线防护;
  • 智能家居、可穿戴设备以及 IoT 端口的静电与浪涌防护;
  • 测试与测量设备、医疗电子(需配合合规评估)中对脆弱接口的保护。

五、设计与使用建议

  • 将 TVS 靠近被保护端口(靠近连接器或接口)布局,以缩短 PCB 走线和降低串联电感,从而提高吸收效率。
  • 双向器件在对称差分信号或可能出现正负极性瞬变的线路中直接并联使用;若用于直流偏置线路,请确保额定 Vrwm(5 V)高于系统正常工作电压。
  • 注意器件不是浪涌能量的长期承受元件,若系统经常遭受高能冲击,应考虑并联更大功率吸收级或配合熔断器/限流电阻使用。
  • 对高速信号,结合 PCB 布线与阻抗匹配设计,利用低结电容优势以减少信号畸变。

六、可靠性与认证

ESD9B5.0ST5G 针对 IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)及 IEC 61000-4-5(浪涌)进行了等级设计,适合要求一定抗扰度的民用与工业场景。实际系统级合规请根据终端应用进行完整的 EMC 测试验证。

七、封装与订购信息

  • 封装:SOD-923,适配常规 SMT 贴装设备。
  • 品牌:DOWO(东沃)。
  • 订购或样品请参考厂商提供的型号标识 ESD9B5.0ST5G 与相应数据手册,确认生产批次与质量保证条款。

结束语:ESD9B5.0ST5G 以小封装、低电容与较高能量吸收能力,适用于对空间和信号完整性有较高要求的接口保护场景。在设计中合理布置并配合系统保护策略,可有效提升产品的抗干扰与可靠性。若需更详细的特性曲线或参考电路图,请提供具体应用环境以便给出针对性建议。

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