WMSIC Electronic Components

BORN BEP0640SB

ModelBEP0640SB
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BORN BEP0640SB
Type
BORN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
BEP0640SB
Electronic Component
1
Package
SMB
Electronic Component
Thyristor Surge Suppressor (TSS)
Electronic Component
0.194g
Current
5uA
Electronic Component
1
Electronic Component
BM0264692200
Operating Temperature
40℃~+150℃
Latching Current(Ih)
120mA
Switch Voltage(Vs)
77V
Capacitor(Co)
76pF
Voltage(Vt)
4V
Current(It)
2.2A

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

BEP0640SB 产品概述

一、产品简介

BEP0640SB 是 BORN(伯恩半导体)推出的一款 DO-214AA/SMB 封装的半导体放电管(防雷管),针对中低压直流/交流电源与信号线的瞬态过电压冲击提供快速钳位与能量吸收能力。器件断态峰值电压(Vdrm)为 58V,标称触发电压(Vs)为 77V,能在苛刻环境下长期稳定工作,工作温度范围为 -40℃ 至 +150℃。

二、主要技术参数

  • 封装:DO-214AA / SMB(表面贴装)
  • 断态峰值电压 Vdrm:58 V
  • 漏电流:5 μA(典型/最大)
  • 开关电压 Vs:77 V
  • 保持电流 Ih:120 mA
  • 通态电压 Vt:4 V(在指定导通电流下)
  • 通态电流 It:2.2 A
  • 峰值脉冲电流 Ipp:80 A(短时冲击能力)
  • 断态电容 Co:76 pF
  • 工作温度:-40℃ ~ +150℃

三、性能与特点

  • 高能量吸收能力:80 A 峰值脉冲电流表明对短时大能量浪涌具有良好的吸收能力,适合工业电源、通信端口的浪涌保护。
  • 低漏电流:典型 5 μA,有利于保护电路在待机或精密测量场景下不引入额外偏差。
  • 快速钳位:在超过触发电压(77 V)时迅速进入通态,通态电压约 4 V,快速限制过电压幅值,保护后端器件。
  • 中等电容:76 pF 的断态电容对高速信号线会有一定影响,适用于对带宽要求不极端的电源或较低速信号保护。

四、典型应用场景

  • 电源输入端(模块电源、适配器保护)
  • 通信设备供电与接口保护(中低速数据线、监控摄像头电源)
  • 工业控制与自动化设备的浪涌防护
  • 光伏逆变器、小型充电桩等对瞬态抑制有要求的场景

五、封装与安装注意事项

  • SMB(DO-214AA)为常用表面贴装封装,优点是散热和安装方便。建议将器件尽可能靠近被保护的输入端或连接器放置,以减小 PCB 走线电感。
  • 采用完整地平面或低阻抗接地电源层作为放电回路,必要时在器件底部与接地铜皮之间布置通孔增加热与电流承载能力。
  • 焊接采用标准回流工艺,遵循封装材料的热循环承受能力。安装时注意避免机械应力、过度加热或弯折。

六、设计与选型建议

  • 若保护对象为高速信号,请注意 76 pF 的电容可能影响信号完整性,必要时考虑低电容型 TVS 或并联阻抗匹配方案。
  • 持续电流与安全裕度:Ih=120 mA 表示器件进入钳位需要的保持电流,避免在设计中让该器件长期处于通态工作;对长期过流或持续高功率场景应选用更高额定功率或串联限流元件。
  • 对于不同浪涌波形(如 8/20 μs,10/1000 μs),实际能量吸收与温升差异显著,建议在系统级做脉冲测试验证。

七、可靠性与环境适应

BEP0640SB 工作温度范围宽(-40℃ 至 +150℃),适合工业级应用。常见可靠性注意事项包括避免湿度与污染物腐蚀、在高温环境下给予适当散热和热循环评估。

八、结论与采购建议

BEP0640SB 以 SMB 表面贴装形式提供了针对 ~58 V 级别系统的高能量浪涌保护方案,具有低漏电、快速钳位、高峰值冲击能力的优点,适用于电源入口和中低速信号端的瞬态抑制。在选型时请结合系统浪涌波形、信号带宽及长期热管理要求做可靠性验证,必要时与伯恩半导体技术支持沟通获取更详细的脉冲曲线与封装机械图。

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