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Slkor BC857B
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Slkor BC857B
- Type
- SLKOR
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- SLKOR
- Electronic Component
- BC857B
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 PNP
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.033g
- Electronic Component
- 1
- Electronic Component
- BM0228146955
- 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.
BC857B 产品概述
概述
BC857B 是一种高性能 PNP 型双极结晶体管 (BJT)，广泛应用于各种电子设计中的信号放大和开关控制。由萨科微（Slkor）制造，该器件具有较高的功率处理能力和频率响应，适合用于消费电子、汽车电子以及工业设备等多个领域。
关键规格
- 功率（Pd）: 200mW
- 晶体管类型: PNP
- 特征频率（fT）: 100MHz
- 直流电流增益（hFE@Ic,Vce）: 220 @ 2mA, 5V
- 集射极击穿电压（Vceo）: 45V
- 集电极-发射极饱和电压（VCE(sat)@Ic,Ib）: 500mV @ 100mA, 5mA
- 集电极截止电流（Icbo）: 100nA
- 集电极电流（Ic）: 100mA
- 封装类型: SOT-23
应用领域
BC857B 由于其高增益和适中的开关速度，被广泛应用于数字电路中的开关元件，以及模拟电路中的信号放大器。它适合以下应用场景：
- 音频放大器: 由于其高增益特性，BC857B 可用于音频信号的放大，确保高质量的音频输出。
- 开关电路: 适用于低功耗开关控制电路，能够驱动小功率负载。
- 传感器接口: 较高的输入阻抗和低的截止电流使其成为传感器信号接口的理想选择。
- 信号处理: 在各种信号处理电路中，BC857B 可用于实现增益和适应性调整。
性能特点
- 高频率响应: 特征频率为 100MHz，确保在高频应用中的稳定性和可靠性，适合用于 RF 和高速数字电路。
- 良好的增益特性: 直流电流增益（hFE）高达 220，使得其在更低的基极电流下也能控制较大的集电极电流，提高了电路设计的灵活性。
- 优越的电压参数: 集射极击穿电压可达 45V，提供了足够的裕量，防止在高压环境中损坏器件。
- 低饱和电压: 在高达 100mA 的电流下，其集电极-发射极饱和电压仅为 500mV，这对于需要低功耗的电路非常重要。
- 超低的截止电流: 仅 100nA 的集电极截止电流使其在关断状态下功耗极低，适合于低功率待机模式的应用。
封装与布局
BC857B 采用 SOT-23 封装，这种小型化设计使其适合于空间受限的应用，同时便于自动化贴片生产，降低了生产成本。设计师可以在 PCB 上灵活布线，以节省空间并提高电路的整体性能。
总结
BC857B 是一款具备高性能、高可靠性的小型 PNP 型三极管，凭借其出色的规格，适应了多种应用需求。无论是在音频放大、开关电路还是传感器接口中，BC857B 都能表现出色。其低功耗、低饱和电压和高增益的特性让其在各类电子设备中都具有广阔的应用前景，是电子工程师在设计过程中不可或缺的元件之一。
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