PN3645_D74Z Product Overview

Introduction

The PN3645_D74Z is a versatile electronic component that belongs to the category of small-signal transistors. This entry provides an in-depth overview of the product, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Small-signal transistor
• Use: Amplification and switching of electronic signals
• Characteristics: High gain, low noise, and small package size
• Package: TO-92 package
• Essence: NPN bipolar junction transistor
• Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

• Maximum Collector-Base Voltage (Vcb): 30V
• Maximum Collector-Emitter Voltage (Vce): 30V
• Maximum Emitter-Base Voltage (Veb): 5V
• Continuous Collector Current (Ic): 200mA
• Power Dissipation (Pd): 625mW
• Transition Frequency (ft): 300MHz
• Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The PN3645_D74Z transistor has three pins: 1. Collector (C): Connects to the positive supply voltage. 2. Base (B): Input terminal for controlling the transistor's operation. 3. Emitter (E): Output terminal for the amplified signal.

Functional Features

• High Gain: Provides significant signal amplification.
• Low Noise: Minimizes unwanted interference in signal processing.
• Small Package Size: Enables integration into compact electronic devices.

Advantages and Disadvantages

Advantages

• Compact size allows for space-efficient circuit design.
• High gain makes it suitable for low-power applications.
• Low noise enhances signal fidelity in sensitive circuits.

Disadvantages

• Limited maximum collector current may restrict use in high-power applications.
• Moderate transition frequency may limit high-frequency performance.

Working Principles

The PN3645_D74Z operates based on the principles of bipolar junction transistors. When a small current flows into the base terminal, it controls a much larger current between the collector and emitter terminals, allowing for signal amplification and switching.

Detailed Application Field Plans

The PN3645_D74Z is commonly used in the following applications: - Audio amplifiers - Signal processing circuits - Switching circuits - Oscillator circuits

Detailed and Complete Alternative Models

Some alternative models to PN3645_D74Z include: - 2N3904 - BC547 - 2N2222 - MPS2222A

In conclusion, the PN3645_D74Z small-signal transistor offers high gain, low noise, and compact packaging, making it suitable for various amplification and switching applications in electronic circuits.

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