WMSIC Electronic Components

BORN BEP0300SB

ModelBEP0300SB
PackageSMB
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 BEP0300SB
Type
BORN
Minimum package
3000

Technical parameters

Electronic Component
BORN
Electronic Component
BEP0300SB
Electronic Component
1
Package
SMB
Electronic Component
Thyristor Surge Suppressor (TSS)
Electronic Component
0.193g
Current
5uA
Electronic Component
1
Electronic Component
BM0231019380
Operating Temperature
40℃~+150℃
Latching Current(Ih)
40mA
Switch Voltage(Vs)
40V
Capacitor(Co)
80pF
Voltage(Vt)
4V
Current(It)
2.2A
Electronic Component
3000

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

BEP0300SB 放电管 产品概述

一、产品简介

BEP0300SB 是 BORN(伯恩半导体)推出的一款SMB封装放电管,用于电路中的过压浪涌保护。器件设计用于在突发高压情况下以低导通压快速进入放电状态,将瞬时能量安全引向接地或保护回路,从而保护下游敏感元件。工作温度范围宽(-40℃ ~ +150℃),适应恶劣环境和高温应用。

二、主要参数

  • 品牌:BORN(伯恩半导体)
  • 型号:BEP0300SB
  • 封装:SMB(表面贴装)
  • 开关电压 (Vs):40 V
  • 断态峰值电压 (Vdrm):25 V
  • 通态电压 (Vt):4 V(导通时压降)
  • 通态电流 (It):2.2 A(额定持续或最大导通电流)
  • 峰值脉冲电流 (Ipp):80 A(冲击浪涌能力)
  • 漏电流:5 μA(断态泄漏)
  • 保持电流 (Ih):40 mA(维持导通所需电流)
  • 断态电容 (Co):80 pF(对高频信号的影响参考)
  • 工作温度:-40 ℃ 至 +150 ℃

以上参数基于典型测试条件,实际应用需参照厂方数据手册的详细说明与测试条件。

三、产品特点

  • 抗浪涌能力强:80 A 峰值脉冲电流可吸收短时高能量冲击,适合雷击或开关瞬变保护。
  • 低漏电、快速响应:断态漏电仅 5 μA,且导通压降仅 4 V,能在保护动作时快速将过压钳位到安全水平。
  • 宽温工作:-40 ℃ ~ +150 ℃,适合工业、户外及高温环境应用。
  • SMB 封装便于自动贴装,适合批量生产和表面贴装工艺。
  • 较低断态电容(80 pF),对信号线路的影响有限,适用于部分通讯线或数据线保护(需评估具体频率影响)。

四、典型应用场景

  • 通讯设备防雷与线路保护(如基站、路由器、DSL/电话线路)
  • 电源线和接口端口的浪涌抑制(开关电源、充电器)
  • 工业控制设备和仪表的过压保护
  • 汽车电子(需确认车规兼容性与认证)
  • 任何需要在瞬态过压时快速吸收能量并保护后级器件的场合

五、使用与安装建议

  • 建议放电管尽可能靠近受保护端口接地端焊接,以减少回路电感与阻抗,从而提高保护效率。
  • 若用于差分或多线系统,评估是否需要成对/多只并联或配合其它防护元件(如TVS二极管)实现更好的响应与钳位性能。
  • 设计时注意保持良好接地层与短回路路径,避免将浪涌能量耦合回敏感电路。
  • 选型时确认 Ih(保持电流)与系统可能的持续电流匹配,避免误保持或难以恢复到断态的情况。

六、选型注意事项

  • 确认器件的断态峰值电压 Vdrm 与系统工作电压匹配,确保在正常工作下不被误触发。
  • 根据预期浪涌能量选择合适的 Ipp,必要时并联多只或使用更高能量级产品。
  • 若用于高频信号线,评估 Co 对信号完整性的影响,必要时考虑更低电容型号或旁路滤波设计。
  • 查看完整数据手册的脉冲能量曲线、冲击波形(8/20 μs 等)与热行为,进行热管理设计。

七、可靠性与存储

  • 器件在推荐的温湿度条件下存储,可满足常规贴片组装流程。
  • 在高湿或腐蚀性环境中推荐采取防护措施(如封装涂层)。
  • 生产批次和老化测试数据应在采购时与供应商确认以保证长期可靠性。

八、结论

BEP0300SB 是一款面向浪涌保护的高可靠性放电管,SMB 封装便于装配,低漏电与高脉冲承受能力使其在工业与通讯等领域具有较强的应用价值。设计时请结合系统工作电压、浪涌能量与信号完整性要求,参考厂方完整数据手册以完成最终选型与布局。若需针对具体电路的接法建议或仿真参数,可提供电路信息以便进一步分析。

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