Encyclopedia Entry: 72281L10TF

Product Information 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

• Type: NPN Bipolar Junction Transistor
• Maximum Collector Current (Ic): 500mA
• Maximum Collector-Emitter Voltage (Vce): 30V
• Maximum Power Dissipation (Pd): 625mW
• Transition Frequency (ft): 300MHz
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The 72281L10TF transistor has three pins:

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

Functional Features

• High gain amplification of weak signals
• Low noise operation for improved signal quality
• Suitable for small-signal applications
• Reliable and stable performance

Advantages and Disadvantages

Advantages: - High gain allows for effective signal amplification - Low noise operation ensures signal integrity - Small package size for easy integration into circuits - Wide operating temperature range for versatile applications

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

Working Principles

The 72281L10TF is an NPN bipolar junction transistor that operates based on the principles of amplification and control of electrical current. When a small input signal is applied to the base terminal, it controls the flow of current between the collector and emitter terminals. This controlled current amplification enables the transistor to amplify weak signals with high gain and low noise.

Detailed Application Field Plans

The 72281L10TF transistor finds applications in various fields, including:

1. Audio Amplification: Used in audio amplifiers to boost weak audio signals.
2. Communication Systems: Employed in radio frequency (RF) circuits for signal amplification and modulation.
3. Sensor Interfaces: Utilized in sensor circuits to amplify and process weak sensor signals.
4. Oscillator Circuits: Incorporated in oscillator circuits for generating stable oscillations.

Detailed and Complete Alternative Models

1. 2N3904: Similar NPN transistor with higher maximum collector current (Ic = 200mA).
2. BC547: NPN transistor with comparable characteristics and widely available.
3. 2SC945: NPN transistor with higher power dissipation (Pd = 625mW) and lower transition frequency (ft = 150MHz).

(Note: The above alternative models are provided as examples and not an exhaustive list.)

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