1N4004

The 1N4004 is a widely used silicon rectifier diode, part of the 1N400x series, which is known for its reliability and versatility in various electronic applications. Manufactured by TWGMC (Taiwan Semiconductor Manufacturing Company), the 1N4004 is designed to handle moderate current and voltage levels, making it suitable for power supply circuits, signal rectification, and other general-purpose applications.

Key Features:

1. Electrical Specifications:

   • Maximum Reverse Voltage (VR): The 1N4004 can withstand a maximum reverse voltage of 400 volts, which allows it to be used in high-voltage applications without the risk of breakdown.
   • Forward Current (IF): It has a maximum forward current rating of 1 ampere, making it capable of handling typical loads in various circuits.
   • Forward Voltage Drop (VF): The forward voltage drop is typically around 0.5 to 0.7 volts at 1 ampere, which is standard for silicon diodes and contributes to its efficiency in rectification.

2. Package Type:

   • The 1N4004 is commonly available in a DO-41 package, which is a cylindrical glass package with two leads. This design provides durability and ease of mounting on printed circuit boards (PCBs).

3. Thermal Characteristics:

   • The diode has a junction temperature range of -55°C to +150°C, allowing it to operate in a wide range of environmental conditions. This makes it suitable for both consumer electronics and industrial applications.

4. Applications:

   • The 1N4004 is often used in power supply circuits for converting AC to DC, in battery chargers, and in various electronic devices where rectification is required. Its ability to handle high reverse voltages makes it particularly useful in applications where voltage spikes may occur.

5. Reliability:

   • TWGMC is known for its quality manufacturing processes, ensuring that the 1N4004 diode is reliable and consistent in performance. This reliability is crucial in applications where failure could lead to significant issues.

6. Markings:

   • The diode is typically marked with the part number "1N4004" on its body, along with other identifiers that may include the manufacturer's logo and batch number, ensuring traceability and authenticity.

Conclusion:

The 1N4004 from TWGMC is a robust and efficient diode that serves as a fundamental component in many electronic circuits. Its combination of high voltage tolerance, moderate current handling, and reliable performance makes it a go-to choice for engineers and hobbyists alike. Whether used in power supplies, rectifiers, or other electronic applications, the 1N4004 continues to be a staple in the electronics industry.