BF861A,215 Product Overview

Introduction

The BF861A,215 is a semiconductor product belonging to the category of field-effect transistors (FETs). This entry provides an overview of its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

• Category: Field-Effect Transistor (FET)
• Use: The BF861A,215 is commonly used as a high-frequency amplifier in various electronic circuits.
• Characteristics: It exhibits low noise and high gain characteristics, making it suitable for applications requiring signal amplification.
• Package: SOT23 package
• Essence: High-frequency amplification
• Packaging/Quantity: Typically available in reels with varying quantities based on manufacturer specifications.

Specifications

The BF861A,215 has the following key specifications: - Maximum Drain-Source Voltage: Vds = 20V - Continuous Drain Current: Id = 30mA - Total Power Dissipation: Ptot = 225mW - Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The BF861A,215 typically features three pins: 1. Gate (G) 2. Drain (D) 3. Source (S)

Functional Features

• High Gain: Provides significant signal amplification in high-frequency applications.
• Low Noise: Minimizes unwanted signal interference during amplification processes.
• Small Package Size: The SOT23 package offers compactness, making it suitable for space-constrained designs.

Advantages and Disadvantages

Advantages

• High gain for signal amplification
• Low noise characteristics
• Compact package size

Disadvantages

• Limited maximum drain-source voltage compared to some alternative models
• Relatively lower continuous drain current capacity

Working Principles

The BF861A,215 operates based on the principles of field-effect transistors, utilizing the control of electric fields to modulate the conductivity of a channel.

Detailed Application Field Plans

The BF861A,215 finds applications in various electronic circuits, including: - Radio frequency (RF) amplifiers - Oscillator circuits - Low-noise amplifiers (LNA) - Signal processing circuits

Detailed and Complete Alternative Models

Some alternative models to the BF861A,215 include: - BF862 - BF862,215 - BF862,235

In conclusion, the BF861A,215 serves as a crucial component in high-frequency amplification circuits, offering low noise and high gain characteristics. Its compact package and versatile applications make it a valuable choice for various electronic designs.

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