WMSIC Electronic Components

Brightking 4532-421-LF

Model4532-421-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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking 4532-421-LF
Type
BRIGHTKING
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
4532-421-LF
Electronic Component
1
Electronic Component
3.2mm
Package
SMD,4.5x3.2mm
Electronic Component
2
Electronic Component
(GDT)
Electronic Component
0.229g
Electronic Component
4.5mm
Electronic Component
2.7mm
Electronic Component
1
Electronic Component
BM0265797532
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.

Brightking 4532-421-LF 陶瓷气体放电管产品概述

Brightking(台湾君耀)作为国内防护器件领域的老牌厂商,其4532-421-LF是一款针对高密度电子设备设计的贴片式陶瓷气体放电管(GDT),凭借小体积、低电容、宽温适应性等核心优势,广泛应用于通信、工业控制等场景的浪涌防护需求。

一、产品核心定位与封装特性

4532-421-LF采用SMD 4532标准贴片封装,尺寸严格控制在4.5mm(长)×3.2mm(宽)×2.7mm(高),适配自动化贴装生产线,同时满足小型化电子设备的空间限制。作为双极型(2极)GDT,无极性设计简化了安装流程,无需区分正负,适合单相电路的浪涌防护场景。

该产品延续Brightking的陶瓷封装工艺优势,具备优异的抗机械冲击、耐腐蚀性能,可有效抵御环境侵蚀与机械应力,保障长期可靠性。

二、关键电气参数解析

4532-421-LF的电气参数针对不同应用场景做了精准优化,核心参数如下:

  1. 直流击穿电压(Vdc):420V
    静态下缓慢升压时的击穿电压,行业标准公差为±10%,确保在电路正常工作电压(如220VAC峰值311V)下不会误触发,避免影响设备正常运行;
  2. 脉冲放电电流:2kA(8/20μs波形)
    峰值浪涌电流承受能力达2kA,符合IEC 61000-4-5浪涌测试标准,可有效抑制雷击、开关浪涌等强干扰;
  3. 极间电容:0.5pF
    低电容是该产品的核心优势之一,远低于压敏电阻(通常数百pF),对高频信号(如射频、通信信号)的完整性影响极小,适合射频电路、高速数据接口防护;
  4. 冲击击穿电压(Vimp):1kV
    脉冲电压下的击穿电压,比直流击穿电压高,反映了产品在快速浪涌下的响应特性——快速升压时,气体电离需要更高电压触发,避免弱浪涌误动作;
  5. 工作温度范围:-40℃~+85℃
    覆盖工业级温度区间,可适应户外基站、低温仓库、高温车间等 harsh 环境,满足大部分应用场景的温度需求。

三、典型应用场景说明

4532-421-LF的参数特性使其适配多种浪涌防护场景:

  • 通信设备:基站、路由器、交换机的电源端口、射频接口防护,低电容不干扰信号传输,宽温适应户外基站环境;
  • 工业控制:PLC、传感器、变频器的输入输出接口防护,2kA浪涌能力抵御工业现场的开关浪涌,陶瓷封装耐机械冲击;
  • 消费电子:机顶盒、智能电视、智能家居设备的防雷/浪涌防护,小体积符合小型化设计趋势;
  • 电力监测:智能电表、互感器的辅助电路防护,宽温范围适应户外电力设备的温度变化。

四、环境适应性与可靠性

  1. 温度可靠性:-40℃+85℃的工作范围,通过高低温循环测试(-40℃+85℃,循环次数≥100次),确保极端温度下性能稳定;
  2. 封装可靠性:陶瓷封装与SMD引脚结合紧密,焊接后无脱落风险,符合RoHS、REACH等环保标准;
  3. 寿命特性:气体放电管属于“无限寿命”器件(多次放电后性能无明显衰减),Brightking的工艺保障了10^9次以上的放电循环可靠性。

五、选型与应用注意事项

  1. 配合其他防护器件:GDT响应时间为微秒级,建议与纳秒级的TVS二极管配合使用——TVS先抑制尖峰浪涌,GDT后承受大电流,实现“快慢互补”;
  2. 击穿电压选型验证:需确保Vdc高于电路正常工作电压的1.2~1.5倍(如220VAC电路选420V以上GDT),避免误触发;
  3. 焊接规范:采用回流焊时,峰值温度不超过260℃,焊接时间不超过10秒,避免陶瓷封装开裂;
  4. 布局建议:尽可能靠近防护端口安装,减少引线电感,提升浪涌抑制效果。

综上,Brightking 4532-421-LF是一款性能均衡、适配性强的贴片GDT,适合对体积、电容、温度有严格要求的浪涌防护场景,是电子设备可靠性设计的可靠选择。

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