WMSIC Electronic Components

RUILON SMD5542-2000 SMD5542

ModelSMD5542-2000
PackageSMD,5.5x4.2mm
BrandRUILON
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RUILON SMD5542-2000
Type
RUILON
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
SMD5542-2000
Electronic Component
1
Electronic Component
4.2mm
Package
SMD,5.5x4.2mm
Electronic Component
2
Electronic Component
(GDT)
Electronic Component
±20%
Electronic Component
0.37g
Electronic Component
5.5mm
Electronic Component
4.2mm
Electronic Component
1
Electronic Component
BM0264391809
Operating Temperature
40℃~+125℃
Capacitor
0.5pF

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

SMD5542-2000 产品概述

一、产品概述

SMD5542-2000 是 RUILON(瑞隆源)推出的一款表面贴装型陶瓷气体放电管(气放管/防雷管),专为电磁脉冲和雷击浪涌保护而设计。器件采用 SMD 封装,尺寸 5.5 × 4.2 × 4.2 mm,极数为双极(2 极),具有高能量吸收能力与极小的极间电容,适用于对线路保护、信号完整性和低漏电要求同时敏感的场合。

二、主要参数

  • 品牌:RUILON(瑞隆源)
  • 型号:SMD5542-2000
  • 极数:2
  • 直流击穿电压 (Vdc):2 kV(±20%)
  • 冲击击穿电压 (Vimp):3.5 kV
  • 脉冲放电电流:3 kA(额定脉冲放电能力)
  • 极间电容:0.5 pF(典型值,适合高速信号应用)
  • 工作温度范围:-40 ℃ ~ +125 ℃
  • 封装:SMD,5.5 × 4.2 mm,厚度 4.2 mm

三、产品特点

  • 高耐压:2 kV 的直流击穿电压及 3.5 kV 的冲击击穿电压,可在高压脉冲情况下迅速导通,保护下游电路。
  • 大脉冲能量吸收:额定脉冲放电电流可达 3 kA,能有效吸收突发浪涌能量,适用于雷击和开关过电压防护。
  • 极低极间电容:0.5 pF 的极间电容对高速、微弱信号影响极小,利于数据与通信线路的信号完整性。
  • 宽温度适应性:-40 ℃ 至 +125 ℃ 的工作温度范围,适合工业级与户外设备环境。
  • SMD 封装:便于自动贴装和批量生产,减小占板面积,提升装配效率。

四、典型应用

  • 通信基站、光纤收发器、防雷前端模块的线路保护
  • 工业控制与测试设备的信号与电源端口防护
  • 传感器接口、低频/高速数据线的过压保护(因极间电容低,适合高速信号场景)
  • 电力监控、户外终端、安防设备等易受雷击或浪涌干扰的场合

五、封装与安装建议

  • 封装形式为 SMD(5.5 × 4.2 mm),建议按照厂商提供的推荐焊盘尺寸与焊接工艺进行 PCB 设计与贴装。
  • 建议在贴装前确认回流焊温度曲线与厂家推荐的工艺相符,避免超过器件允许的热应力。
  • 放电管对机械冲击与弯曲应力敏感,贴片后避免在器件上施加过大压力。
  • 在 PCB 走线布局上,应避免与高频信号线过多平行耦合,且在保护元件周围留出适当的绝缘与爬电距离,以保证保护性能和可靠性。
  • 对于关键防护线路,建议在气放管前后配合其它保护元件(如熔断、限流器或低电容 TVS)构成多级防护体系。

六、可靠性与测试要点

  • 出货前通常进行 100% 的外观检查和部分电气参数抽检;关键参数如直流击穿电压、冲击击穿电压和脉冲放电能力需通过标准试验验证。
  • 在实际应用中,应按系统级雷击与浪涌试验规范验证整体保护效果,确认在目标测试波形下气放管能可靠触发并承受能量。
  • 长期使用时关注环境污染与器件表面绝缘状况,高湿或污染环境可能影响放电性能和可靠性。

七、选型与采购提示

  • 型号命名中的“2000”对应直流击穿电压约 2 kV,选型时请核对所需防护等级与击穿电压匹配。
  • 若应用对脉冲波形、能量或重复击穿次数有特殊要求,请提供具体测试条件以便确认器件能满足需求。
  • 采购时可向 RUILON 索取器件 Datasheet、回流焊工艺建议和推荐 PCB 焊盘图,以确保设计与工艺的一致性。

如需更详细的电气测试曲线、推荐贴装图或实际应用参考电路图,可提供您的具体应用场景(例如线缆类型、工作电压、预期浪涌等级),以便给出针对性的建议。

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