WMSIC Electronic Components

DOWO SLVU2.8-4 SLVU2.8

ModelSLVU2.8-4
PackageSOP-8
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 SLVU2.8-4
Type
DOWO
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
SLVU2.8-4
Electronic Component
1
Package
SOP-8
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.022g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
3pF
Electronic Component
BM0231033181
Operating Temperature
40℃~+85℃
Voltage
25V
Electronic Component
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.

SLVU2.8-4 产品概述

一、概述

SLVU2.8-4 是东沃(DOWO)推出的一款四路双向瞬态电压抑制器(ESD 防护器件),采用 SOP-8 封装,专为对低压高速信号线和多通道接口提供瞬态过压、静电放电保护而设计。器件在常态下对线路影响极小,能在瞬态事件发生时迅速钳位,保护后端敏感元件不受损害。

二、主要参数

  • 极性:双向
  • 反向截止电压 Vrwm:2.8 V
  • 击穿电压(Vbr):3 V
  • 钳位电压:25 V(瞬态钳位)
  • 峰值脉冲电流 Ipp:20 A
  • 峰值脉冲功率 Ppp:450 W
  • 反向电流 Ir:100 nA(常态漏电小)
  • 结电容 Cj:3 pF(典型,适合高速信号)
  • 通道数:四路
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 防护等级:符合 IEC 61000-4-2 静电放电要求
  • 封装:SOP-8

三、特性与优势

  • 双向保护:支持双向放电,适合数据线、差分对等双向信号。
  • 低钳位响应:在大电流瞬态下能将峰值电压钳制于安全范围(典型钳位 25 V),减少对下游器件瞬态冲击。
  • 低结电容(3 pF):对高速信号的影响小,适用于需要保持信号完整性的接口(如高速串行数据、GPIO、通信接口等)。
  • 低漏电(100 nA):适合高阻抗电路或电池供电设备,降低静态功耗与干扰。
  • 高瞬态承受能力:20 A 峰值脉冲电流与 450 W 峰值功率保证在常见 ESD/浪涌事件下可靠工作。
  • 宽温区与工业级可靠性:-40 ℃ 至 +85 ℃ 的工作温度范围满足多种环境应用需求。

四、典型应用场景

  • 手机与便携设备的数据/信号接口保护(低压 I/O、触摸按键、传感器线)。
  • 消费电子与家电的多通道 I/O 口、控制总线保护。
  • 通信设备与网络接口的过压与静电防护。
  • 工业控制与测量仪器中对低压信号的瞬态抑制。
  • USB/串口等需要兼顾速度与防护的接口(视具体总线电压匹配选择)。

五、封装与布局建议

  • SOP-8 封装、四路分布,适合 PCB 上集中布局。为获得最佳防护效果,应将 SLVU2.8-4 放置在被保护接口的最靠近处,尽量缩短到连接器的焊盘走线。
  • 对于高频或差分信号,注意保持走线阻抗控制并避免在保护器与接插件之间插入过长导线。可在需要时与串联电阻、滤波网络配合使用以改善瞬态能量分散。
  • 器件用于瞬态抑制,不宜用于持续导通或替代正常电源/信号路径的稳压元件。

六、使用注意事项

  • 确认系统工作电压与 Vrwm(2.8 V)的匹配,避免在常态下误触发击穿。
  • 钳位电压 25 V 为瞬态状态下的典型值,具体性能受脉冲波形与 PCB 布局影响,建议在设计阶段进行相应的 ESD/浪涌仿真或试验验证。
  • 在严苛工业环境下,参考厂商数据手册进行热与可靠性评估,考虑必要的冗余与保护策略。

总结:SLVU2.8-4 是一款面向低压、多通道、高速信号场景的四路双向 ESD 抑制器,凭借低结电容、低漏电和较高瞬态承受能力,为现代便携与工业电子系统提供有效的瞬态防护方案。若需更详细的电气特性曲线与布局参考,请参考东沃官方数据手册。

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