WMSIC Electronic Components

CJ MMBTA55

CJ MMBTA55
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Product image

ModelMMBTA55
PackageSOT-23(SOT-23-3)
BrandCJ
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+

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Technical data

Product details

14 specifications

Core information

Product name
CJ MMBTA55
Type
CJ
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
MMBTA55
Electronic Component
1
Package
SOT-23(SOT-23-3)
Electronic Component
Transistor(BJT)
Electronic Component
0g
Electronic Component
1
Electronic Component
BM0221731984
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.

MMBTA55 产品概述

一、基本信息

MMBTA55 是一种兼具高性能和高可靠性的 PNP 型晶体管，采用 SOT-23 （SOT-23-3）封装，广泛应用于各种电子电路中。此组件由江苏长电（CJ）制造，具有优良的电气特性和热稳定性，适用于低功耗信号放大和开关应用。其主要技术规格如下：

  • 工作电压 (Vceo): -60V
  • 集电极电流 (Ic): -500mA
  • 直流电流增益 (HFE): 100-400

二、工作原理

MMBTA55 作为 PNP 晶体管，由三层半导体材料构成，分别为 P 型和 N 型材料。其基本工作原理是利用电流控制电流的特性，即在基极注入一定的电流后，可以控制从集电极到发射极的更大电流。因此，MMBTA55 适用于信号放大和开关作用等多种应用场景。

在其工作时，当基极施加负电压时，发射极与基极之间形成的 P-N 结导通，导致集电极与发射极之间的电流流动。通过调整基极的电流，可以使集电极的电流保持在一个可控范围内。

三、关键特性

  1. 高电压耐受性: MMBTA55 的 Vceo 高达 -60V，适合高电压电路的设计需求，能够有效降低过压损害的风险。

  2. 较大集电极电流: 支持至多 -500mA 的 Ic，这使得该产品能够处理更大功率的负载，适应多种应用环境。

  3. 优秀的电流增益: 具有 100 至 400 的 HFE 值，使其在小信号放大应用中表现出色，能够有效提高信号强度，保证音频及射频等设备的输出质量。

  4. 小封装尺寸: SOT-23 封装小巧，适合现代小型化设计需求，能够在空间受限的地方提供应用。

  5. 温度特性稳定: MMBTA55 具备良好的热稳定性，能够在较宽的工作温度范围内正常工作，增加了产品的可靠性。

四、应用领域

MMBTA55 在不同的电子应用中表现良好，主要的应用领域包括但不限于：

  1. 信号放大器: 由于其高 HFE 值和较大的集电极电流能力，MMBTA55 常用于音频放大器和射频信号放大器中，能够增强微弱信号，提升音频设备的清晰度与质量。

  2. 开关电路: 该晶体管也可以用作开关元件，广泛应用于各种数字和模拟电路中，能够有效控制更大负载的启停，适合用于继电器驱动和电机控制。

  3. 线性调节器: MMBTA55 可用于构建线性电源电路，作为调节元件，提供稳定的输出电压，满足各类设备的电源需求。

  4. 电流模块: 它广泛应用于电流源或电流镜电路中，为各种模拟电路提供精准的电流输出。

五、总结

总之，MMBTA55 通过其优越的技术参数及灵活的应用能力，成为许多电子设计工程师的首选元件。这款 PNP 型三极管以其高电压耐受性、大集电极电流和优秀的电流增益，适用于多种电子设备和应用场景，能够满足现代电子产品日益增长的性能和小型化需求。利用 MMBTA55，设计师可以更轻松地实现高性能、高效率的电路设计。

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