1N4004 BK - Diode Encyclopedia Entry

Product Overview

The 1N4004 BK is a diode belonging to the category of rectifier diodes. It is commonly used in electronic circuits for converting alternating current (AC) to direct current (DC). The diode exhibits characteristics such as high current capability, low forward voltage drop, and fast switching speed. It is typically available in a DO-41 package and is essential for various electronic applications. The packaging usually consists of bulk quantities suitable for production and prototyping purposes.

Specifications

• Maximum repetitive peak reverse voltage: 400V
• Average rectified output current: 1A
• Forward voltage drop: 1V
• Maximum reverse current: 5µA
• Operating temperature range: -65°C to +175°C

Detailed Pin Configuration

The 1N4004 BK diode has two terminals: the anode and the cathode. The anode is denoted by a longer lead, while the cathode is identified by a shorter lead. This pin configuration is crucial for ensuring proper orientation during circuit assembly.

Functional Features

The 1N4004 BK diode serves as a unidirectional current flow regulator, allowing current to pass through in only one direction. Its fast switching speed enables efficient rectification of AC signals into DC, making it suitable for various power supply and signal processing applications.

Advantages and Disadvantages

Advantages

• High current capability
• Low forward voltage drop
• Fast switching speed
• Reliable performance in rectification applications

Disadvantages

• Limited reverse voltage tolerance compared to other diode types
• Relatively higher forward voltage drop compared to Schottky diodes

Working Principles

The 1N4004 BK diode operates based on the principle of semiconductor junction behavior. When a positive voltage is applied to the anode with respect to the cathode, the diode conducts current, allowing the flow of electrons. In the reverse bias condition, the diode blocks the current flow, preventing the reverse flow of electrons.

Detailed Application Field Plans

The 1N4004 BK diode finds extensive use in various electronic applications, including: - Power supply units - Signal rectification circuits - Voltage regulation circuits - Inverter and converter systems - Battery charging and discharging circuits

Detailed and Complete Alternative Models

Several alternative models to the 1N4004 BK diode include: - 1N4001, 1N4002, 1N4003: Lower voltage variants suitable for low-power applications - 1N4005, 1N4006, 1N4007: Higher voltage variants for applications requiring increased reverse voltage tolerance - 1N5400 series: Higher current rating diodes for heavy-duty rectification applications

In conclusion, the 1N4004 BK diode is a fundamental component in electronic circuits, providing reliable rectification and current regulation capabilities across a wide range of applications.

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