WMSIC Electronic Components

Brightking 4532-351-LF

Model4532-351-LF
PackageSMD,4.5x3.2mm
BrandBrightking
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
Brightking 4532-351-LF
Type
BRIGHTKING
Minimum package
2500 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
4532-351-LF
Electronic Component
1
Electronic Component
3.2mm
Package
SMD,4.5x3.2mm
Electronic Component
2
Electronic Component
(GDT)
Electronic Component
0.231g
Electronic Component
4.5mm
Electronic Component
2.7mm
Electronic Component
1
Electronic Component
BM0257695058
Operating Temperature
40℃~+85℃
Capacitor
0.5pF
Electronic Component
Electronic Component

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

4532-351-LF 产品概述

一、产品简介

4532-351-LF 是台湾君耀(Brightking)推出的一款表面贴装型气体放电管(GDT),封装尺寸为 4.5 × 3.2 × 2.7 mm(SMD)。该器件为双极(2 极)保护元件,专为抑制雷电冲击和开关瞬态而设计,能够在高能脉冲下迅速导通,将过电压能量安全分流至接地,从而保护后端电路免受损害。

二、主要性能参数

  • 极数:2 极(双极)
  • 直流击穿电压 (Vdc):350 V
  • 冲击击穿电压 (Vimp):900 V
  • 脉冲放电电流:2 kA(峰值)
  • 极间电容:0.5 pF(典型值,适合高速信号线)
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 封装尺寸:4.5 mm × 3.2 mm × 2.7 mm(SMD)
  • 型号:4532-351-LF(SMD, 4.5×3.2mm)
  • 品牌:Brightking(台湾君耀)

三、典型特性与优势

  • 低极间电容(约 0.5 pF):对高速数据、通信线路影响极小,适合用于对信号完整性要求高的系统(例如以太网、DSL、同轴等)。
  • 高脉冲承受能力:峰值 2 kA 的脉冲放电电流能够应对多数雷电与开关浪涌引起的高能瞬态。
  • 明确的触发与耐压参数:直流击穿 350 V、冲击击穿 900 V,便于与线路工作电压匹配与设计冗余。
  • 紧凑 SMD 封装:4.5×3.2 mm 小尺寸支持高密度 PCB 布局与自动化贴装生产。
  • 宽温区工作:-40 ℃ 至 +85 ℃ 适合多种工业与户外环境使用。

四、典型应用场景

  • 通信接口保护:DSL、以太网、光纤收发器进线保护(GDT 通常与低电容 TVS 或滤波电路配合使用)。
  • 防雷与配电箱:用于电源入口或配电线路的强浪涌保护。
  • 工业控制与仪表:对抗外部干扰及开关操作产生的过电压脉冲。
  • 安防与监控设备:摄像头与传输线路的防雷防浪涌保护。

五、封装与安装建议

  • 推荐靠近受保护端口或连接器放置,尽量缩短接地回路长度以降低回路感抗。
  • 采用厂商推荐的焊盘布局和回流焊工艺参数,避免过度热应力。
  • PCB 接地平面需做良好接连,确保放电脉冲能量迅速传导到地。
  • 对于对信号完整性特别敏感的线路,注意与旁路、电阻等元件的合理配合,避免串联过多寄生元件。

六、选型与使用注意事项

  • 根据被保护线路最大工作电压选择合适的直流击穿电压(350 V)与冲击电压裕量,确保在正常工作电压下不误触发。
  • GDT 属于非线性开关型保护器件,触发后会导通放电并承受能量,长期或频繁的大电流冲击可能影响寿命,应评估所需的冲击承受次数与等级。
  • 在需要快速响应的系统中,可考虑与低箝位电压的 TVS 结合使用:GDT 处理大能量冲击,TVS 负责吸收小幅快速过压,组合能获得更优的总体保护效果。
  • 检查环境与法规要求(如防雷标准、通信设备规范)以确定是否需要额外的保护措施或认证。

七、储存与可靠性

  • 建议在制造商推荐的温湿度条件下存放,避免潮湿与机械应力。
  • 装配过程应避免机械冲击与静电放电,对 GDT 的管体与引脚采取正常防护。
  • 定期在系统级别进行浪涌试验验证(根据实际应用的浪涌等级与频率),以确认长期可靠性。

总结:4532-351-LF 以其低电容、高脉冲承受能力和小型 SMD 封装,适用于对信号完整性与抗浪涌能力都有较高要求的通信与工业场景。正确的 PCB 布局、接地设计以及与其他保护元件的配合,可以发挥其最佳保护效果。若需进一步的封装图、焊盘建议或浪涌曲线,请提供具体需求以便进一步确认。

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