WMSIC Electronic Components

KUU KBA301N

ModelKBA301N
Package1812
BrandKUU
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
KUU KBA301N
Type
KUU
Minimum package
2500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
KUU
Electronic Component
KBA301N
Electronic Component
1
Electronic Component
3.2mm
Package
1812
Electronic Component
2
Electronic Component
(GDT)
Electronic Component
±20%
Electronic Component
0.279g
Electronic Component
4.5mm
Electronic Component
2.7mm
Electronic Component
1
Electronic Component
BM0257646979
Operating Temperature
40℃~+90℃
Capacitor
1pF

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

KBA301N 产品概述

一、产品简介

KBA301N 是 KUU 品牌、1812 封装的一款两极保护器件。根据给出的参数,它具有较高的脉冲放电能力与极低的极间电容,适合用于对浪涌电流或瞬态过电压有抑制需求的场合,特别是对信号完整性要求较高的线路。器件体积小(4.5 × 3.2 × 2.7 mm),便于表面贴装于常见 PCB 布局中。

二、主要参数

  • 极数:2
  • 直流击穿电压 (Vdc):300 V(公差 ±20%)
  • 脉冲放电电流:2 kA
  • 极间电容:1 pF
  • 工作温度:-40 ℃ ~ +90 ℃
  • 外形尺寸:4.5 mm × 3.2 mm × 2.7 mm(1812 封装)
  • 品牌:KUU
  • 描述:未分类(依据参数常见于浪涌/瞬态保护元件)

三、性能要点说明

  • 高脉冲能力(2 kA):能承受较强的浪涌或雷击诱发冲击电流,适合电源输入端或易遭受大冲击的外部接口处做一级保护。
  • 低极间电容(1 pF):对高速信号干扰极小,适合用于数据线、通信接口及对信号完整性要求高的应用场景。
  • 击穿电压 300 V(±20%):提供在中高电压等级下的过压触发阈值,选择时需注意与系统工作电压匹配,避免误触发或保护不足。
  • 环境适应:工作温度范围覆盖工业级常见温区,封装尺寸适合自动贴装工艺。

四、典型应用场景

  • 工业控制和自动化设备的输入/输出防护。
  • 通信接口(如 DSL、以太网前端)或高速信号线路的浪涌保护(因其低电容特性)。
  • 电源输入端的一级防浪涌保护(配合熔断器、滤波器使用)。
  • 仪表、电表及商用逆变器等需兼顾浪涌承受能力与体积限制的设备。

五、安裝与电路设计建议

  • 布局:建议将器件靠近受保护端口或连接器放置,以缩短保护路径并降低寄生感抗。
  • 接地:若为非对称保护,确保接地回路短且粗,避免通过长回路泄放浪涌能量。
  • 组合保护:在高要求场合可与 TVS、熔断器和滤波元件并联或串联使用,形成多级保护体系。
  • 焊接:器件为 1812 封装,按常规 1812 焊盘和回流焊工艺设计 PCB 焊盘(参考制造商推荐的焊接曲线),避免过度热应力与机械拉力。
  • 绝缘与间隙:对高压环境注意保持爬电距离与间隙要求,遵守相关安全规范。

六、可靠性与选型注意

  • 击穿电压公差 ±20% 表明触发阈值存在较大分布,设计时需考虑最差情形以保证可靠保护。
  • 在工作温度极限附近长期运行可能影响寿命,重要应用建议留裕度或进行老化试验。
  • 建议在最终产品中进行实际浪涌测试(如 IEC/EN 的相关试验标准)以验证整体保护效果。
  • 如需替代件,挑选时关注脉冲放电能力、电容、击穿电压及封装尺寸的匹配,最好参考完整数据手册以确认细节参数(如电压-电流曲线、重复冲击寿命等)。

七、结论

KBA301N 以小体积、低电容和较高的脉冲放电能力为主要特点,适合用于需兼顾信号完整性与浪涌防护的电路中。在实际设计中应结合系统工作电压、浪涌能量及布局条件进行选型和布线,并配合适当的后备保护与测试验证以确保可靠性。若需更详细的电气特性曲线、封装图纸或试验数据,请联系制造商或索取完整数据手册。

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