WMSIC Electronic Components

BORN BSA471N

ModelBSA471N
Package1206
BrandBORN
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
BORN BSA471N
Type
BORN
Minimum package
2500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
BSA471N
Electronic Component
1
Electronic Component
1.6mm
Package
1206
Electronic Component
2
Electronic Component
(GDT)
Electronic Component
±30%
Electronic Component
0.064g
Electronic Component
3.2mm
Electronic Component
1.6mm
Electronic Component
1
Electronic Component
BM0257678977
Operating Temperature
40℃~+85℃
Capacitor
0.5pF

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

BSA471N 产品概述

一、产品简介

BSA471N 是伯恩半导体(BORN)出品的一款 2 极气体放电管(GDT),封装尺寸为业界常见的 1206(3.2 × 1.6 × 1.6 mm)。该器件针对配电线路、通信接口及信号线的雷电和浪涌保护而设计,具有高脉冲放电能力和低极间电容,适合在需要同时保证大能量吸收与高速信号完整性的场景使用。

二、主要性能特点

  • 直流击穿电压(Vdc):470 V,允许偏差 ±30%,适配中等电压保护等级的系统。
  • 冲击(脉冲)击穿电压(Vimp):1.05 kV,能够承受短时间高幅值脉冲。
  • 脉冲放电电流:500 A(峰值),对雷击或开关突波的能量吸收能力强。
  • 极间电容:约 0.5 pF,极低的寄生电容保证对高速信号(如以太网、DSL、视频链路等)的干扰最小。
  • 工作温度范围:-40 ℃ 至 +85 ℃,满足工业级环境要求。
  • 封装:1206 表面贴装(SMD),便于自动化贴装与批量生产。

三、典型应用场景

  • 通信设备:电话线、DSL、以太网端口、光纤收发器前端防护。
  • 视频/广播设备:闭路电视(CCTV)、高清视频链路防雷浪涌保护。
  • 电源与配电:直流/交流端口的浪涌防护、逆变器和配电箱局部保护。
  • 工业控制与楼宇自控:对抗雷电及开关冲击,提升系统可靠性。

四、封装与安装要点

BSA471N 为 1206 尺寸的 SMD 封装,长 3.2 mm、宽 1.6 mm、高 1.6 mm,适配标准 1206 设计规则。建议在 PCB 布局时:

  • 将器件尽量靠近被保护端口或连接器,以缩短抑制路径。
  • 为了散热与可靠接地,考虑在放电回路路径上提供低阻抗接地或良好回流结构。
  • 注意波峰回流或回流焊工艺参数与母材相容,避免过度机械应力影响密封性能。

五、选型建议与注意事项

  • 若系统持续工作电压接近 300 V 以上,应注意 Vdc ±30% 的容差范围(约 329 V ~ 611 V),选择时预留裕量以避免误触发或无法触发防护。
  • 对于对信号完整性极为敏感的应用,BSA471N 的 0.5 pF 极间电容为优势,但在多路密集布线时仍需综合考虑总线电容影响。
  • 若需承受更高能量雷击或长期重复浪涌,应结合外加限流元件(如熔断器、PTC、阻容网络)提高整体保护能力与使用寿命。

六、技术参数一览

  • 型号:BSA471N(BORN/伯恩半导体)
  • 极数:2 极
  • 直流击穿电压:470 V(±30%)
  • 冲击击穿电压:1.05 kV
  • 脉冲放电电流:500 A(峰值)
  • 极间电容:0.5 pF(典型)
  • 工作温度:-40 ℃ ~ +85 ℃
  • 外形尺寸:3.2 × 1.6 × 1.6 mm(1206)

总结:BSA471N 在中高压防护场景中提供了兼顾大脉冲承受能力与低电容特性的解决方案,适用于通信、视频及工业控制等对浪涌保护与信号完整性双重要求的应用。选型时关注 Vdc 容差与系统工作电压匹配,并配合合适的 PCB 布局与外围限流措施,可获得长期可靠的过电压保护效果。

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