WMSIC Electronic Components

MDD MMBT4401

ModelMMBT4401
PackageSOT-23-3
BrandMDD
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
MDD MMBT4401
Type
MDD
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
MMBT4401
Electronic Component
1
Package
SOT-23-3
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.032g
Electronic Component
1
Electronic Component
BM0257686003
Operating Temperature
55℃~+150℃
Transistor Type
NPN
Frequency(f T)
250MHz
Power Dissipation(Pd)
300mW
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.

MMBT4401 产品概述

一、基本信息

MMBT4401 是 MDD 公司出品的一款 NPN 型三极管,广泛应用于电子电路中。其设计旨在提供高效的放大和开关功能,特别适合在要求高增益和较大电流的环境中使用。以下是其主要参数:

  • 功率(Pd): 300mW
  • 工作温度范围: -55℃ ~ +150℃
  • 特征频率(fT): 250MHz
  • 直流电流增益(hFE @ Ic, Vce): 300 @ 150mA, 1V
  • 集射极击穿电压(Vceo): 40V
  • 集电极-发射极饱和电压(VCE(sat) @ Ic, Ib): 400mV @ 150mA, 15mA
  • 集电极截止电流(Icbo): 100nA
  • 集电极电流(Ic): 600mA
  • 封装类型: SOT-23-3

二、应用领域

MMBT4401 的电气特性使其在多个领域中都表现出色,适合的应用包括:

  1. 音频放大器:其高增益特性(hFE高达300)使其能够有效放大微弱的音频信号,适合于音频前置放大和其他声音处理功能。

  2. 开关电路:该三极管可以作为电子开关,适用于控制大电流负载的开关电路,由于其集电极电流(Ic)高达600mA,适合高功率应用。

  3. 信号放大:在无线信号处理领域,MMBT4401 的较高特征频率(fT)使其能够处理高频信号,这对于射频(RF)放大器和调制解调器等设备至关重要。

  4. 线性电源:作为线性稳压器的关键组件,其低饱和电压(VCE(sat) 400mV)在保证输出功率的同时,有效降低功耗。

三、产品优势

MMBT4401 产品具有多项优势,特别适合现代电子产品的需求:

  • 宽广的工作温度范围:从 -55℃到+150℃ 的工作温度使其能够在极端环境中稳定运行,广泛应用于汽车、航空以及工业控制等领域。

  • 小型化封装:SOT-23-3 封装 size 适合多种空间受限的电子设备,能够在不影响电路性能的情况下,帮助设计更紧凑的小型电子产品。

  • 优异的电流处理能力:该三极管能够处理高达600mA的集电极电流(Ic),具备良好的负载能力,适合高功率电路应用。

  • 高增益与低噪声:其高增益特性及低集电极截止电流(Icbo 100nA)带来的低噪声性能,使其在精密仪器和音频应用中表现优秀。

四、设计考虑

在设计应用中,用户需考虑以下几个设计要点:

  1. 散热管理:尽管 MMBT4401 能够处理较高功率,但为了保证其长期稳定性和减少失效率,需在电路设计中加入适当的散热措施。

  2. 电源电压:集射极击穿电压(Vceo)限制在40V,因此必须确保使用中不会超过该电压,以避免损坏。

  3. 偏置电路设计:在使用时,需要设计适当的偏置电路,以保证三极管在工作区间内高效放大信号或开关控制。

五、总结

MMBT4401 是一款可靠、性能优异的 NPN 型三极管,因其高增益、宽工作温度范围和小巧封装,使其在众多电子设计中拥有广泛的应用前景。无论是音频放大、信号处理还是开关控制,MMBT4401 均能高效满足各种需求,是电子工程师的优选组件。对于追求性能和稳定性的应用场合,MMBT4401 展现出了极大的价值。

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