DO-204

The DO-204 is a standard package type for electronic components, specifically designed for diodes. Here’s an introduction to the DO-204 package:

DO-204 Package Overview:

The DO-204 is a cylindrical, axial-lead package commonly used for diodes, including rectifier diodes, Zener diodes, and other small-signal diodes. It is part of the DO (Diode Outline) series defined by the JEDEC (Joint Electron Device Engineering Council) standards.

Key Features:

1. Shape and Size:
2. The DO-204 package has a cylindrical body with two axial leads extending from opposite ends.

3. The body diameter typically ranges from 2.5 mm to 3.5 mm, and the length varies depending on the specific diode type and manufacturer.

4. Leads:

5. The leads are straight and extend axially from the body, making it suitable for through-hole mounting on printed circuit boards (PCBs).

6. The lead diameter is usually around 0.6 mm to 0.8 mm.

7. Materials:

8. The body is typically made of molded plastic or glass, providing electrical insulation and mechanical protection.

9. The leads are usually made of tinned copper or other conductive materials to ensure good electrical connectivity.

10. Markings:

11. The diode’s part number, polarity, and other identification markings are often printed or laser-etched on the body for easy identification.

Applications:

The DO-204 package is widely used in various electronic circuits, including:

• Power Supplies: For rectification purposes.
• Signal Processing: In small-signal circuits.
• Protection Circuits: Such as transient voltage suppression.

Advantages:

• Compact Size: Suitable for space-constrained applications.
• Ease of Assembly: Simple through-hole mounting.
• Reliability: Robust construction ensures durability in various environments.

Common Variants:

• DO-204AC: Slightly larger than the standard DO-204, with a body diameter of about 3.5 mm.
• DO-204AH: Smaller variant with a body diameter of about 2.5 mm.

In summary, the DO-204 package is a versatile and widely used standard for diodes, offering a balance of size, reliability, and ease of use in electronic circuit design.