WMSIC Electronic Components

BORN MMBT3904

ModelMMBT3904
PackageSOT-23
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 MMBT3904
Type
BORN
Minimum package
3000

Technical parameters

Electronic Component
BORN
Electronic Component
MMBT3904
Electronic Component
1
Package
SOT-23
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM69416875
Operating Temperature
55℃~+150℃
Transistor Type
NPN
Frequency(f T)
300MHz
Power Dissipation(Pd)
200mW
Electronic Component
3000
Collector Current(Ic)
200mA
Current (h FE)
100

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、产品基本信息

MMBT3904是一款广泛应用的NPN型小信号三极管,封装形式为SOT-23。其具有200mW的功率处理能力,工作电压可达40V,最大集电极电流为200mA。该三极管由伯恩半导体(BORN)制造,凭借良好的性能表现和可靠性,成为电子设计中常用的元器件之一。

二、产品特性

  1. 高增益:MMBT3904具有较高的直流电流增益(hFE),使其在放大和开关应用中非常有效。一般在集电极电流为10mA时,本器件的hFE可达到100至300,适合各种信号处理应用。

  2. 高工作电压:其最高工作电压为40V,满足许多高电压应用的要求,适用范围很广。

  3. 小封装设计:采用SOT-23封装,MMBT3904不仅体积小,而且可以有效节省PCB空间,适合于小型化设计的需求,尤其是在移动设备和便携式电子产品中。

  4. 出色的频率特性:MMBT3904在高频信号放大和开关方面具有良好的响应特性。这使得它在射频(RF)和高频电路中得到了广泛的应用。

  5. 可靠性和稳定性:该元器件经过严格的测试,具有较好的长期稳定性,适合在不同环境条件下的使用。

三、应用场景

MMBT3904因其优良的电气性能和灵活的封装设计,适用于多种电子电路的实现。具体应用场景包括:

  1. 信号放大:在音频、视频及数据传输等应用中,MMBT3904常用于信号的放大电路中,有效提高信号的强度。

  2. 开关电路:得益于其快速开关特性,MMBT3904广泛用于开关电源设计中,或作为控制电路的开关元件。

  3. 线性稳压:在一些简单的线性稳压器设计中,MMBT3904可以用于对输出电压的稳定输出,保障系统的稳定运行。

  4. 调制解调器及其他射频应用:它在高频电路中被用作放大器或混频器,表现出色。

  5. 马达驱动电路:作为控制信号输出的放大器,MMBT3904也可以在马达驱动电路中发挥作用,尤其是小功率马达的控制。

四、典型电气特性

  • 最大集电极电压(V_CE):40V
  • 最大集电极电流(I_C):200mA
  • 最大耗散功率(P_D):200mW
  • 直流电流增益(hFE)范围:100 - 300(在特定条件下)

注:以上参数需参照具体的操作环境和电路设计来选择,确保器件运行在安全范围。

五、使用注意事项

在设计电路时,使用MMBT3904需要注意以下几点:

  1. 热管理:尽管其功率处理能力达到200mW,但在高负载应用中仍需考虑合适的热管理措施,以防止器件过热。

  2. 偏置电路设计:为了确保串联电流处于适当水平,可靠的基极偏置电路设计是至关重要的,以获取预期的放大效果。

  3. 过载保护:在设计电路时应考虑过载保护措施,避免因瞬时电流过大而导致器件损坏。

  4. 静电放电(ESD)敏感性:如同许多其他SOT封装元器件,一定要注意其静电放电敏感性,建议在操作时采取适当的防护措施,防止静电损坏。

六、总结

总体而言,MMBT3904作为一款小型NPN三极管,具备卓越的性能和适用性,在大众电子产品及工业设备中应用十分广泛。凭借其高增益、良好的频率响应及优质的封装设计,它成为电子工程师在电路设计中不可或缺的重要元器件之一。随着电子技术的不断进步,MMBT3904依然对众多创新应用和设计方案提供了强有力的支持。

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