WMSIC Electronic Components

BC847B

ModelBC847B
PackageSOT-23
BrandYONGYUTAI
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
YONGYUTAI BC847B
Type
YONGYUTAI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YONGYUTAI
Electronic Component
BC847B
Electronic Component
1
Package
SOT-23
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM0225995803
Transistor Type
NPN
Frequency(f T)
100MHz
Power Dissipation(Pd)
200mW
Electronic Component
Electronic Component
Electronic Component
3000
Collector Current(Ic)
100mA

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

BC847B 产品概述

概要

BC847B 是一种高性能的双极结晶体管(BJT),属于NPN类型,适用于广泛的电子应用。它由永裕泰(YONGYUTAI)品牌生产,采用SOT-23封装。以下是对BC847B的详细介绍。

基础参数

  • 功率(Pd): 200 mW
    • 这表明该三极管在正常操作条件下可以承受的最大功率。
  • 商品分类: 三极管(BJT)
    • 属于双极结晶体管家族,通过控制基极电流来调节集电极和发射极之间的电流。
  • 晶体管类型: NPN
    • 在NPN三极管中,集电极和发射极都是n型半导体材料,而基极是p型半导体材料。
  • 特征频率(fT): 100 MHz
    • 表示三极管在高频应用中的性能,高特征频率意味着更好的高频响应。
  • 直流电流增益(hFE@Ic,Vce): 450 @ 2 mA, 5 V
    • 这是基极电流与集电极电流之间的增益系数,表示基极输入信号对集电极输出信号的放大能力。
  • 集射极击穿电压(Vceo): 45 V
    • 当基极不接通时,集电极与发射极之间可以承受的最大电压。
  • 集电极-发射极饱和电压(VCE(sat)@Ic,Ib): 500 mV @ 100 mA, 5 mA
    • 在饱和状态下,集电极与发射极之间的最小电压差,通常用于开关应用。
  • 集电极截止电流(Icbo): 10 nA
    • 当基极不接通时,集电极的漏电流。
  • 集电极电流(Ic): 100 mA
    • 可以通过集电极流过的最大连续电流。

封装和品牌

  • 封装: SOT-23
    • 小型化的三引脚封装,适合于空间有限的应用场景。
  • 品牌: 永裕泰(YONGYUTAI)
    • 一家专业从事电子元器件制造和销售的公司,提供高质量和可靠性的产品。

应用场景

放大器应用

BC847B 因其高直流电流增益(hFE)和较高特征频率(fT),非常适合用于小信号放大器和中功率放大器。它可以在音频、射频以及其他需要高频响应和稳定性场景中发挥作用。

开关应用

由于其低饱和电压(VCE(sat))和高集电极电流能力,BC847B 也可以用于开关电路,如继电器驱动、逻辑门电路等。在这些应用中,它能够提供快速的开关速度和低功耗。

传感器和检测器

在传感器和检测器应用中,BC847B 可以作为信号放大器或缓冲器,帮助提高传感器输出信号的强度和稳定性。

优势

  1. 高频性能:
    • 特征频率高达100 MHz,使其在高频应用中表现出色。
  2. 低噪声:
    • 低集电极截止电流(Icbo)和低饱和电压(VCE(sat)),确保信号放大过程中的低噪声。
  3. 小型化封装:
    • SOT-23封装使其适合于空间有限的设计,提高了整体系统的集成度。
  4. 高可靠性:
    • 由永裕泰(YONGYUTAI)品牌生产,保证了产品的质量和可靠性。

使用注意事项

  1. 热管理:
    • 由于最大功率限制为200 mW,需要确保在使用过程中保持适当的散热措施,以避免过热导致的故障。
  2. 电压限制:
    • 集射极击穿电压为45 V,应确保实际应用中的工作电压不超过此值,以防止损坏。
  3. 静电保护:
    • 像所有半导体器件一样,BC847B 对静电敏感。因此,在处理和安装过程中应采取适当的静电保护措施。

总结

BC847B 是一种功能强大且灵活的NPN三极管,适用于各种电子应用,包括小信号放大、开关控制以及传感器信号处理等。其高频性能、低噪声特性和小型化封装,使其成为许多设计工程师的首选器件。通过了解其基础参数和使用注意事项,可以充分发挥BC847B 的性能优势。

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