KLC F3.1

SMD chip package naming conventions

The following footprint naming conventions should be used as examples for naming SMD chip package footprints.

If you do not find an appropriate convention that matches a particular footprint type, either contact the KiCad library team or try to match a convention set by existing library components.

In the entries below, variable fields are denoted as follows:

- Fixed fields
- Mandatory fields
- Optional fields

[Prefix]_[Imperial size]_[Metric size]Metric_[Modifiers]_[Options]

  • Prefix - Device type
  • Imperial size - Imperial case size (Optional)
  • Metric size - Metric case size (Optional)
  • Modifiers - Modifiers to footprint if non standard (Optional)
  • Options - Extra footprint options (Optional)

Example:

LED_0805_2012Metric_ReverseMount

Notes:

The prefix is determined by the default reference designator of the device, e.g.

  • Capacitor = C

  • Capacitor (polarised) = CP

  • Resistor = R

  • Diode = D

Case size codes:

Imperial Code Metric Code Size Imperial Size Metric

01005

0402

0.0157 in × 0.0079 in

0.4 mm × 0.2 mm

0201

0603

0.024 in × 0.012 in

0.6 mm × 0.3 mm

0402

1005

0.039 in × 0.020 in

1.0 mm × 0.5 mm

0603

1608

0.063 in × 0.031 in

1.6 mm × 0.8 mm

0805

2012

0.079 in × 0.049 in

2.0 mm × 1.25 mm

1008

2520

0.098 in × 0.079 in

2.5 mm × 2.0 mm

1206

3216

0.126 in × 0.063 in

3.2 mm × 1.6 mm

1210

3225

0.126 in × 0.098 in

3.2 mm × 2.5 mm

1806

4516

0.177 in × 0.063 in

4.5 mm × 1.6 mm

1812

4532

0.18 in × 0.13 in

4.5 mm × 3.2 mm

1825

4564

0.18 in × 0.25 in

4.5 mm × 6.4 mm

2010

5025

0.197 in × 0.098 in

5.0 mm × 2.5 mm

2512

6332

0.25 in × 0.13 in

6.3 mm × 3.2 mm

2920

7451

0.29 in × 0.20 in

7.4 mm × 5.1 mm

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