WMSIC Electronic Components

DOWO 3R075M-S5076 3R075M

Model3R075M-S5076
PackageSMD-3P,7.6x5mm
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 3R075M-S5076
Type
DOWO
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
3R075M-S5076
Electronic Component
1
Electronic Component
5mm
Package
SMD-3P,7.6x5mm
Electronic Component
3
Electronic Component
(GDT)
Electronic Component
±20%
Electronic Component
1.785g
Electronic Component
7.6mm
Electronic Component
5mm
Electronic Component
1
(φD)
5mm
Electronic Component
BM0249905777
Operating Temperature
40℃~+85℃

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

3R075M-S5076 产品概述

一、产品简介

3R075M-S5076 是 DOWO(东沃) 提供的一款三极(3P)表面贴装(SMD)浪涌/过电压保护元件,封装尺寸为 7.6×5mm(长度×宽度),整体高度约 5mm,典型直径 5mm。器件设计用于对瞬态高能脉冲(如雷击浪涌、开关瞬态等)提供侧限和泄放,保护下游电路免受过压损害。工作温度范围为 -40℃ 至 +85℃,适用于普通工业与通信类环境。

二、主要电气与机械参数

  • 极数:3(多通道/多极保护)
  • 直流击穿电压 Vdc:75 V(典型,精度 ±20%)
  • 冲击/脉冲放电电流:10 kA(峰值脉冲放电能力,测试脉冲标准请参考厂商数据)
  • 冲击击穿电压 Vimp:800 V(脉冲条件下的击穿电压参考值)
  • 极间电容:1 pF(低电容设计,适合高频信号线应用)
  • 工作温度:-40℃ ~ +85℃
  • 封装:SMD-3P,尺寸 7.6×5mm,厚度/高度 ≈5mm
  • 精度/公差:±20%(主要针对击穿电压或电气参数的公差说明)

三、结构特点与封装信息

3R075M-S5076 采用三端结构,便于实现多线并联或线-地等保护配置。SMD-3P 封装便于高速贴片生产线回流焊装配,占板面积小且便于多通道并列布局。低极间电容(约 1 pF)使其在对通信、数据线及视频信号线的浪涌保护中对信号完整性的影响最小。

四、性能与优势

  • 强脉冲承受能力:单次脉冲放电电流可达 10 kA,能有效吸收雷击或切换引起的高能冲击。
  • 低电容设计:约 1 pF 的极间电容降低对高速信号的耦合与失真,适合对带宽敏感的接口。
  • 宽工作温度:-40℃~+85℃ 满足一般工业与通信工作环境。
  • 紧凑封装:SMD 贴片形式利于自动化贴装与高密度 PCB 布局。
  • 明确电压等级:直流击穿 75 V(±20%),便于与系统工作电压匹配与选型。

五、典型应用场景

  • 通信设备(如基站、交换机、光纤收发模块的线缆防护)
  • 电源入口及开关电源的过压保护前端
  • 消费电子与办公设备的外部接口保护(数据线、信号线)
  • 工业控制设备中的多路信号/传感器保护(非高温精密场合)
    注:如用于车载或更严苛环境,请结合具体认证与温度/振动要求评估。

六、使用与安装建议

  • PCB 布局:保护元件应尽量靠近入板点或保护对象,走线短且粗以降低寄生电感。
  • 回流焊工艺:按厂商推荐的回流曲线进行,避免过高回流温度超出器件结构耐受范围。
  • 接地方案:若用于线-地保护,确保接地回路低阻、低电感以利于脉冲能量泄放。
  • 并联/重复保护:对重复或高频脉冲场合,建议结合限流、电阻或多级保护方案以延长寿命。

七、可靠性与选型注意事项

  • 参数容差(±20%)需在系统容忍范围内考虑,以免误触发或不足保护。
  • 对于更高能量或更严苛环境(如车规级、+125℃ 等),请选择对应规格或通过供应商确认适用性。
  • 量产前建议进行样件测试(ESD、浪涌、温度循环、焊接兼容性等)以验证设计可靠性。

若需更详细的电气特性曲线、典型脉冲测试波形、包装信息或 PCB 封装尺寸图,请提供后续需求或直接联系 DOWO(东沃)技术支持以获取完整型号数据手册与测试报告。

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