WMSIC Electronic Components

ST MJD340T4

ModelMJD340T4
PackageTO-252
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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
ST(STMicroelectronics) MJD340T4
Type
ST
Unit
Electronic Component
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ST(STMicroelectronics)
Electronic Component
MJD340T4
Electronic Component
1
Package
TO-252
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.475g
Electronic Component
1
Electronic Component
BM0084329170
Operating Temperature
65℃~+150℃
Transistor Type
NPN
Power Dissipation(Pd)
15W
Electronic Component
Electronic Component
Electronic Component
2500

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

产品概述:MJD340T4 NPN 三极管

一、基本信息

MJD340T4 是一款由意法半导体(STMicroelectronics)生产的高效 NPN 型三极管,其具备优异的电气性能和可靠性。该器件广泛应用于电源管理和开关电路、信号放大器、功率放大器等多个领域,特别是在那些对电压和电流有较高要求的工业与消费类电子产品中。

二、技术规格

  • 晶体管类型:NPN
  • 集电极电流 (Ic):最大 500mA
  • 集射极击穿电压 (Vce):最大 300V
  • 集电极截止电流 (ICBO):最大 100µA
  • 直流电流增益 (hFE):在 Ic = 50mA、Vce = 10V 时,最小值为 30
  • 功率耗散:最大 15W
  • 工作温度:最高 150°C(结温 TJ)
  • 安装类型:表面贴装型
  • 封装/外壳:TO-252-3 (DPak, 2 引线 + 接片, SC-63)

三、性能特点

  1. 高集电极电流:MJD340T4 的最大集电极电流可达 500mA,这使其在多个应用中表现出色,尤其是在开关电源和功率放大器的驱动应用中。

  2. 高耐压:其最大集射极击穿电压为 300V,适用于需要高电压操作的电路,确保了器件在高电压条件下的稳定工作。

  3. 低截止电流:ICBO 最大值为 100µA,显示出其在静态条件下的优良性能,有助于提升电路的整体效率。

  4. 良好的增益特性:在设计放大电路时,MJD340T4 的直流电流增益(hFE)值为 30,提供了良好的信号放大能力,适用于多种放大应用。

  5. 高功率处理能力:具有 15W 的功率耗散能力,使其可以在功率要求较高的电路中安全有效地工作,减少了因过热而导致的故障风险。

  6. 宽工作温度范围:其工作温度可达到 150°C,使得 MJD340T4 在恶劣环境条件下仍能可靠运行,适合于高温工业应用。

四、应用领域

MJD340T4 的众多特性使其适用于以下领域:

  • 电源管理:在开关电源、线性稳压器等电源管理电路中,用于开关和调节电流。

  • 信号放大:在音频放大器和射频放大器中,作为信号放大器使用,增强信号的输入能力。

  • 功率放大:在无线通信和广播设备中,可用作功率放大器,放大传输信号。

  • 开关应用:在电子开关、继电器驱动等应用中,作为开关元件使用,控制高负载的电流。

五、技术支持与设计考虑

为了最大限度地发挥 MJD340T4 的性能,设计时需考虑以下几点:

  • 散热设计:由于其最大功率为 15W,适当的散热设计至关重要。使用合适的散热器或加强气流来维护工作温度在安全范围内。

  • 电流限制:在实际电路中,设计者需控制集电极电流的峰值,以避免超过 500mA 的最大额定值,从而确保器件的长期可靠性。

  • 封装选择:MJD340T4 采用 DPAK 封装,适合于自动化贴片技术。设计时应考虑 PCB 的布局和焊接工艺,以确保良好的电气和热性能。

六、总结

MJD340T4 是一款可靠、功能强大的 NPN 型三极管,凭借其高效能、耐高压、低静态电流及广泛的应用潜力,适合于各种电子设备中的关键电子元件。无论是在工业、通信还是消费电子产品领域,MJD340T4都能出色地满足多种需求,是设计工程师的理想选择。

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