WMSIC Electronic Components

Brightking BK12002502

ModelBK12002502
PackageElectronic Component
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking BK12002502
Type
BRIGHTKING
Minimum package
1500 盒

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
BK12002502
Electronic Component
1
Package
Electronic Component
Capacitor
0.8pF
Electronic Component
Electronic Component
Electronic Component
0.24g
Electronic Component
4mm
Electronic Component
1
(φD)
3.1mm
Voltage
500V
Electronic Component
BM0257625956
Operating Temperature
40℃~+85℃
Surge Current
3kA
Resistor
100MΩ

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

BK12002502 放电管(Brightking / 台湾君耀)产品概述

一、产品简介

BK12002502 为 Brightking(台湾君耀)出品的一款轴向引线放电管,适用于对瞬态过电压提供快速放电通道的防护应用。该器件以其高浪涌能力、低电容和较高绝缘阻抗,适合用于通信接口、信号线与电力线路的过压保护方案中。

二、主要电气参数

  • 击穿电压:500V,精度±20%,因此实际触发电压约在400V–600V区间;
  • 绝缘电阻:100MΩ(常温下静态漏电小,利于保持线路静态性能);
  • 电容:0.8pF(极低的寄生电容,有利于高频/高速信号通过);
  • 浪涌电流:3kA(单次冲击级别的浪涌处理能力,适用于雷击或开关瞬态);
  • 工作温度:-40℃ ~ +85℃(适用工业级温度范围)。

三、结构与封装

器件为轴向引线式封装,便于通孔安装与手工或波峰焊接。轴向结构使其在板端、线缆接口或配线串联保护时布置灵活,机械固定与热散布相对方便。

四、典型应用场景

  • 通信接口、电话线与数据总线的浪涌保护;
  • 电源输入端和配电设备的瞬态抑制;
  • 工业控制设备与仪器仪表的端口保护;
  • 配合其它防护元件(MOV、TVS)构成多级防护系统以应对大能量冲击。

五、选型与使用建议

  • 击穿点位选择:选用触发电压应高于线路正常工作电压,且考虑±20%公差;若线路可能出现较大直流偏置,应留足裕量;
  • 配合使用:对重复或更高能量的冲击,建议与低阻抗熔断器或限流元件配合使用,或与TVS/MOV并联以分担能量;
  • 高频影响:0.8pF的低电容特性适合用于高速信号路径,可在不显著影响信号完整性的前提下提供保护;
  • 寿命与更换:放电管在承受一次大能量冲击后其性能可能发生变化,设计中应考虑冲击后检测与更换方案。

六、安装、焊接与可靠性注意事项

  • 安装时避免对轴向引线施加过大机械扭曲或牵拉;
  • 焊接采用短时加热、适度预热工艺,避免长时间高温以防内部结构受损;
  • 储存与使用环境尽量避免潮湿与强腐蚀性气体,工作温度应控制在标称范围内;
  • 建议在样机阶段进行实际浪涌测试与老化验证,确认在目标系统中的响应与可靠性。

七、小结

BK12002502 是一款面向瞬态过电压抑制的轴向放电管,具有500V击穿电压(±20%)、极低电容(0.8pF)、高绝缘阻抗与3kA的浪涌承受能力,适合要求低寄生、可靠抗浪涌的通信与工业接口保护。选用时需结合系统工作电压、冲击能量与配套防护策略进行整体设计,以保证长期稳定运行。若需用于特殊环境或更高反复冲击场景,建议与厂商或技术支持确认更详细的冲击波形与老化数据。

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