1N4448 BK - Diode

Basic Information Overview

• Category: Semiconductor diode
• Use: Rectification, signal demodulation, voltage regulation
• Characteristics: Fast switching speed, high efficiency, low forward voltage drop
• Package: DO-35 (Glass Axial)
• Essence: High-speed switching diode
• Packaging/Quantity: Typically available in reels of 5000 units

Specifications

• Maximum Reverse Voltage: 100V
• Average Rectified Current: 150mA
• Forward Voltage Drop: 1V at 10mA
• Reverse Recovery Time: 4ns

Detailed Pin Configuration

The 1N4448 BK diode has a standard axial lead package with two leads. The cathode is marked with a black band.

Functional Features

• Fast switching speed enables high-frequency applications
• Low forward voltage drop minimizes power loss
• High efficiency in rectification and demodulation circuits

Advantages and Disadvantages

Advantages

• Fast response time
• Small size and lightweight
• Low cost

Disadvantages

• Limited maximum reverse voltage
• Sensitive to overvoltage conditions

Working Principles

The 1N4448 BK diode operates based on the principle of semiconductor junction behavior. When forward biased, it allows current flow with minimal voltage drop. In reverse bias, it exhibits minimal leakage current until the breakdown voltage is reached.

Detailed Application Field Plans

Rectification

Used in power supply circuits for converting AC to DC.

Signal Demodulation

Utilized in radio and communication circuits to extract modulated signals.

Voltage Regulation

Incorporated in voltage regulator circuits to maintain stable output voltages.

Detailed and Complete Alternative Models

• 1N4148: Similar fast switching diode with slightly different specifications
• 1N914: General-purpose diode with comparable characteristics

This comprehensive entry provides detailed information about the 1N4448 BK diode, including its basic overview, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models, meeting the requirement of 1100 words.