WMSIC Electronic Components

Bencent BC301N-D BC301N

ModelBC301N-D
PackageSMD,4.5x3.2x2.7mm
BrandBencent
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
Bencent BC301N-D
Type
BENCENT
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BENCENT
Electronic Component
BC301N-D
Electronic Component
1
Electronic Component
3.2mm
Package
SMD,4.5x3.2x2.7mm
Electronic Component
2
Electronic Component
(GDT)
Electronic Component
±30%
Electronic Component
0.284g
Electronic Component
4.5mm
Electronic Component
2.7mm
Electronic Component
1
Electronic Component
BM0228977600
Capacitor
1pF
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.

BC301N-D 产品概述

一 产品简介

BC301N-D 为 Bencent(槟城)推出的一款高能脉冲防护元件,采用 SMD 封装,尺寸 4.5 × 3.2 × 2.7 mm,双端两极结构(2 terminal)。器件针对短时高能冲击电流设计,具有大脉冲放电能力且电容极小,适合用于需要高能量吸收且对线路阻抗、信号完整性有一定要求的工业与电力应用场景。

二 主要性能特点

  • 脉冲放电电流 Ipp 达 2 kA(典型峰值),能有效吸收短时浪涌能量;
  • 直流击穿电压(Vdc)范围:210 V ~ 390 V,满足 200 V 以上直流线路的保护需求;
  • 冲击击穿电压(Vimp)750 V(典型),对瞬态高压冲击具有较高的耐受能力;
  • 极间电容仅约 1 pF,低电容特性对高频信号影响小,利于保护同时保持信号完整性;
  • 尺寸小(4.5×3.2×2.7 mm)、SMD 封装便于表面贴装自动化生产;
  • 标称值精度 ±30%,在选型与设计时需考虑较大公差带来的触发电压偏移。

三 技术参数(关键)

  • 脉冲放电电流:2 kA(峰值)
  • 直流击穿电压(Vdc):210 V ~ 390 V
  • 冲击击穿电压(Vimp):750 V
  • 极数:2(双端)
  • 外形尺寸:4.5 mm × 3.2 mm × 2.7 mm(长×宽×高)
  • 极间电容:约 1 pF
  • 精度:±30%
  • 封装形式:SMD(表贴)

四 典型应用场景

  • 直流中高压保护:适用于直流供电总线、蓄电池侧防护、逆变器直流侧保护等需承受短时大电流冲击的场合;
  • 工业电源与控制系统:电机驱动器、PLC 输入输出端的浪涌抑制;
  • 通讯与传感前端:低电容特性使其可用于对高速或窄带信号影响敏感的场合做保护器件;
  • 其他需要空间受限且要求贴片化工艺的防护模块。

五 PCB 安装与使用注意事项

  • PCB 布局应保证防护元件与被保护器件之间走线最短并尽量粗,引流路径直接;
  • 对可能发生的大能量冲击场合,建议在防护器件周边保留足够的绝缘间距与散热空间;
  • 由于器件触发电压精度为 ±30%,在系统设计时应留有触发裕量,避免误触发或触发不足;
  • 建议在样机阶段进行实际浪涌试验(如 IEC 61000-4-5 测试)以验证整机保护效果;
  • 焊接工艺按常规 SMD 元件处理,推荐使用回流焊温度曲线并控制峰值温度与时长。

六 选型建议

  • 确认系统正常工作电压与可能出现的瞬态幅值,选择 Vdc 范围中心值尽量高于系统最大工作电压但低于可接受的承压限;
  • 若保护高速信号线,请优先考虑低电容器件,本器件 1 pF 对多数高速场合影响较小;
  • 对关键或高可靠性系统,建议配合其他限流或能量分担元件(如限流器、熔断器)共同设计,提高整体鲁棒性;
  • 如需符合特定认证或标准,请在采购前向供应商确认器件经过的测试和认证资料。

BC301N-D 以其高脉冲吸收能力、低电容与小体积的组合,适合在对抗瞬态过电压冲击且对信号完整性有要求的场合作为防护元件。选用时请结合具体电压等级、试验条件及系统可靠性要求做完整验证。

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