MP155GJ-Z

Product Overview

Category: Electronic Component
Use: Signal Amplification
Characteristics: High Gain, Low Noise
Package: TO-92
Essence: Transistor
Packaging/Quantity: Bulk Packaging, 1000 units per pack

Specifications

• Maximum Collector Current: 500mA
• Maximum Collector-Emitter Voltage: 30V
• Maximum Power Dissipation: 625mW
• Transition Frequency: 300MHz
• Collector-Emitter Saturation Voltage: 0.2V
• Base-Emitter Saturation Voltage: 1.2V

Detailed Pin Configuration

The MP155GJ-Z transistor has three pins:

1. Collector (C)
2. Base (B)
3. Emitter (E)

Functional Features

• High gain amplification of weak signals
• Low noise operation for improved signal quality
• Suitable for small-signal amplification applications
• Compact TO-92 package for easy integration into circuits

Advantages and Disadvantages

Advantages: - High gain allows for amplification of weak signals - Low noise operation ensures signal fidelity - Small package size enables space-saving designs

Disadvantages: - Limited maximum collector current may restrict use in high-power applications - Lower transition frequency compared to some alternative models

Working Principles

The MP155GJ-Z is a bipolar junction transistor (BJT) that operates as an amplifier. It consists of three layers of semiconductor material - the emitter, base, and collector. When a small input signal is applied to the base-emitter junction, it controls the larger output current flowing through the collector-emitter junction. This amplification process allows the MP155GJ-Z to boost weak signals while maintaining signal integrity.

Detailed Application Field Plans

The MP155GJ-Z transistor finds applications in various fields, including:

1. Audio Amplification: Used in audio amplifiers to amplify weak audio signals from sources such as microphones or musical instruments.
2. Radio Frequency (RF) Circuits: Employed in RF circuits for amplifying weak radio signals before further processing.
3. Sensor Interfaces: Utilized in sensor interfaces to amplify small electrical signals generated by sensors, enhancing their sensitivity.

Detailed and Complete Alternative Models

1. BC547: A widely used general-purpose NPN transistor with similar characteristics to the MP155GJ-Z.
2. 2N3904: Another popular NPN transistor suitable for small-signal amplification applications.
3. MPSA18: High-gain NPN transistor commonly used in low-noise amplifier designs.

These alternative models offer similar functionality and can be considered as substitutes for the MP155GJ-Z in various applications.

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