WMSIC Electronic Components

ST MMBT3904 transistor MMBT3904

ST MMBT3904 transistor MMBT3904
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Product image

ModelMMBT3904
PackageSOT-23
BrandST
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+

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Technical data

Product details

19 specifications

Core information

Product name
ST MMBT3904
Type
ST
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ST
Electronic Component
MMBT3904
Electronic Component
1
Package
SOT-23
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.028g
Electronic Component
1
Electronic Component
BM0224261553
Operating Temperature
55℃~+150℃
Transistor Type
NPN
Frequency(f T)
300MHz
Power Dissipation(Pd)
350mW
Electronic Component
Electronic Component
Electronic Component
3000

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

MMBT3904 产品概述

一、产品简介

MMBT3904是一款广泛应用的NPN型三极管，符合SOT-23封装标准，最大功率额定为350mW，耐压可达到40V，且其集电极电流最大可承受200mA。该器件由意法半导体（STMicroelectronics）制造，具有良好的线性特性，常用于放大电路和开关电路中。

二、技术规格

  1. 类型：NPN（负极-正极-负极）
  2. 最大功率：350mW
  3. 最大集电极-发射极电压（VCE）：40V
  4. 最大集电极电流（IC）：200mA
  5. 增益（hFE）：一般在100至300之间，具体值与工作条件及电流有关
  6. 封装：SOT-23
  7. 工作温度范围：-55°C 至 +150°C

三、应用领域

MMBT3904适合集成在各种电子设备中，广泛应用于以下几个领域：

  1. 信号放大：在音频放大器和射频(如RF ID的发射模块)电路中，能够有效放大微弱信号。

  2. 开关电路：在电气设备的开关控制中，可以驱动继电器和控制较大的电流负载，适用于高频开关应用。

  3. 开闭环控制：用于传感器等设备的数据反馈中，帮助提高控制系统的稳定性与精准性。

  4. 移动设备：由于其小型封装、低功耗特性，该三极管非常适合用于手机、平板等移动通信设备中，为它们提供所需的信号处理能力。

  5. 消费电子产品：在电视机、音响等家用电器中，能够实现声效的强化及功能的进一步拓展。

四、特性与优势

  1. 低功耗：MMBT3904具有较高的功率效率，这使得它在手机等便携设备中尤其受欢迎，能够延长电池的使用时间。

  2. 高增益：这款三极管具有较高的电流增益，使得其在信号放大方面表现出色。即使在低输入信号的条件下，也能实现良好的输出。

  3. 温度稳定性：MMBT3904的工作温度范围较宽，可以在相对苛刻的环境中稳定工作，适合多种应用场合。

  4. 采用SOT-23封装：SOT-23封装设计为小型化和轻量化，有利于节省电路板空间，便于大规模集成。

  5. 通用性：由于其普遍的电气特性，MMBT3904可以替代许多型号的类似器件，适合多种设计需求。

五、结论

总之，MMBT3904是一款技术成熟、性能稳定的NPN三极管，通过简化的SOT-23封装标准和高功率处理能力，满足了多种电子应用的需求。其在信号放大、开关控制等方面的广泛应用，令其在电子元器件市场中占据了一席之地。同时，由于其出色的电气特性和良好的制造工艺，MMBT3904受到设计工程师的广泛信赖。无论是在消费电子、通信设备，还是在工业控制系统等高需求应用场合，MMBT3904均可提供可靠而高效的解决方案。

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