WMSIC Electronic Components

Hottech(合科泰) BC858C

Hottech(合科泰) BC858C
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Product image

ModelBC858C
PackageSOT-23
BrandHottech
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+

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Technical data

Product details

19 specifications

Core information

Product name
Hottech BC858C
Type
HOTTECH
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HOTTECH
Electronic Component
BC858C
Electronic Component
1
Package
SOT-23
Electronic Component
1 PNP
Electronic Component
Transistor(BJT)
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM0229946184
Transistor Type
PNP
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.

BC858C 产品概述

BC858C是一款高性能的PNP型双极晶体管（BJT），广泛应用于模拟信号放大和开关电路中。这款三极管在电子产品设计中具有良好的性能，能够满足各种应用需求。以下是BC858C的详细规格参数和应用场景分析。

1. 基本规格

  • 功率(Pd): 200mW
  • 晶体管类型: PNP
  • 特征频率(fT): 100MHz
  • 直流电流增益(hFE): 420 (在2mA的集电极电流和5V的集电极-发射极电压下测得)
  • 集射极击穿电压(Vceo): 30V
  • 集电极-发射极饱和电压(VCE(sat)): 500mV（在100mA的集电极电流和5mA的基极电流下）
  • 集电极截止电流(Icbo): 100nA
  • 最大集电极电流(Ic): 100mA
  • 封装类型: SOT-23(SOT-23-3)

BC858C的封装形式为SOT-23，这种小巧的表面贴装封装使其非常适合于空间有限的电路设计中，尤其是在便携式设备和智能手机等产品中。

2. 性能特点

BC858C三极管具有优异的电流增益，使其在低电流条件下仍可实现高性能运作。其420的直流电流增益意味着，应用于信号放大时，可以使用较小的基极电流来控制较大的集电极电流，因此在信号处理和输出驱动场景中尤为出色。

另外，BC858C具有高频特性，特征频率为100MHz，适合于高频信号应用，比如无线电通讯和高速数字电路。这使得其在现代高频电子设备中广泛受欢迎。

3. 应用场景

BC858C的应用非常广泛，主要包括：

  • 信号放大: 在音频放大器和射频放大器中，BC858C能够有效地放大微弱信号，提升音质和传输质量。
  • 开关电路: 由于其较低的饱和电压和较高的集电极电流，BC858C适合用作开关，有效控制电流的通断。
  • 电源管理: 可以用于电源开关和电压调节器中，通过控制输入和输出之间的电流流动，提升电源效率。
  • 驱动电路: 在需要通过低电流控制高电流负载的场合，BC858C的高电流增益可应用于继电器驱动、LED驱动等领域。

4. 可靠性和稳定性

由于BC858C的集射极击穿电压为30V，相较于一些低电压元器件，BC858C在高电压环境下仍具有一定的稳健性，同时其集电极截止电流仅为100nA，保证了在待机状态下的低功耗特性，有效延长电子设备的使用寿命。

5. 结论

BC858C是一款具有高电流增益、较低饱和压降和良好频率特性的PNP型三极管，适用于各种电子应用。这款晶体管以其出色的性能、可靠性及稳定性，成为许多电子设计工程师的首选元件之一。通过结合BC858C的特性与适用领域，可以实现创新的产品设计，满足现代电子产品对性能和效率的需求。无论是在工业应用、消费电子还是通讯设备中，BC858C都展现出广泛的适用性和卓越的性能，值得在未来更多的设计中进一步探索与应用。

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