NR131S

Product Overview

Category: Electronic Component
Use: Signal Amplification
Characteristics: High Gain, Low Noise
Package: Small Outline Transistor (SOT-23)
Essence: NPN Bipolar Junction Transistor
Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Maximum Collector Current: 100mA
• Maximum Collector-Emitter Voltage: 40V
• Maximum Power Dissipation: 350mW
• Transition Frequency: 250MHz
• Noise Figure: 1.5dB
• Gain Bandwidth Product: 300MHz
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The NR131S transistor has three pins:

1. Base (B): Used for input signal.
2. Emitter (E): Connected to the ground.
3. Collector (C): Output terminal.

Functional Features

• High gain amplification of weak signals.
• Low noise performance for improved signal quality.
• Suitable for a wide range of applications due to its high transition frequency.
• Compact package allows for space-saving designs.

Advantages

• Provides excellent signal amplification capabilities.
• Low noise figure ensures minimal distortion in amplified signals.
• Wide operating temperature range enables usage in extreme environments.
• Small package size facilitates integration into compact electronic devices.

Disadvantages

• Limited maximum collector current may restrict usage in high-power applications.
• Relatively low maximum collector-emitter voltage limits its use in certain circuits.

Working Principles

The NR131S is an NPN bipolar junction transistor that operates based on the principles of amplification and control of electric current. When a small input current is applied to the base terminal, it controls the larger output current flowing between the collector and emitter terminals. This amplification process allows weak signals to be boosted to a usable level.

Detailed Application Field Plans

The NR131S transistor finds applications in various fields, including:

1. Audio Amplification: Used in audio amplifiers to enhance weak audio signals.
2. RF Communication Systems: Employed in radio frequency circuits for signal amplification and modulation.
3. Sensor Interfaces: Utilized in sensor circuits to amplify weak sensor signals for further processing.
4. Oscillator Circuits: Integrated into oscillator circuits to generate stable oscillations.

Detailed and Complete Alternative Models

1. BC547: Similar NPN transistor with comparable specifications.
2. 2N3904: Commonly used NPN transistor with similar characteristics.
3. PN2222: Another alternative NPN transistor suitable for signal amplification.

Please note that the above list is not exhaustive, and there are several other alternative models available in the market.

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