SOD-123 and SOD-123FL are two common diode packages, the main differences are as follows:

1.Package Size

  • SOD-123: 3.0 mm long × 1.6 mm wide × 1.1 mm high.
  • SOD-123FL: 2.6 mm long × 1.3 mm wide × 0.9 mm high.

Therefore, the SOD-123FL is generally more compact than the SOD-123 package and is suitable for applications with higher size requirements.

2.Pin spacing:

  • The pin spacing of SOD-123 and SOD-123FL is also different. The pin spacing of SOD-123 is larger, while that of SOD-123FL is more compact.

3.Applications

  • The SOD-123 package is usually used in higher power applications because it can carry higher current and power.
  • The SOD-123FL package is suitable for applications with stricter size requirements but relatively lower power requirements.

4.Power Capability:

  • Due to its smaller size, the SOD-123FL is usually slightly inferior to the standard SOD-123 package in terms of power handling capability.

In general, the SOD-123FL package is based on the SOD-123 package with optimized size and space utilization, and is suitable for use on circuit boards with strict space requirements.

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