RC0402FR-0740K2L - YAGEO
Public Made by Adomby adom
Thick film chip resistor 40.2 kOhm +/-1 %, 1/16 W, 0402 (1005 metric)
Land pattern check: RC0402FR-0740K2L
The footprint on this page is KiCad's standard library footprint Resistor_SMD:R_0402_1005Metric, renamed to
R_0402_1005Metric_RC0402FR-0740K2L so it can sit beside other parts in one library folder. The copper is unchanged.
This page compares those pads with the land pattern recommended by YAGEO.
Grey is the part body at its datasheet nominal size, teal is the KiCad copper, the dashed amber outline is the maker's land (middle of its printed range, or its printed nominal), and the amber bands show where the maker allows the inner and outer pad edges when it prints a range.
Numbers
| Dimension | KiCad footprint | Maker's recommendation | Difference |
|---|---|---|---|
| gap between lands | 0.48 mm | 0.50 mm | -0.02 mm |
| land length | 0.54 mm | 0.50 mm | +0.04 mm |
| land width | 0.64 mm | 0.60 mm | +0.04 mm |
| overall length | 1.56 mm | 1.50 mm | +0.06 mm |
Maker's letters: A = overall length, B = gap between lands, C = land length, D = land width (YAGEO letters).
Source: YAGEO Chip Resistors Mounting V.10, p.4 Table 1 (reflow), size 0402.
Result
The KiCad pads are within 0.06 mm of every YAGEO value (YAGEO prints nominal values only, with a placement accuracy of +/-0.15 mm), so the footprint matches the maker's pattern for practical purposes.
KiCad pad centres are at +/-0.51 mm, pad size 0.54 x 0.64 mm,
rounded rectangle (corner ratio 0.25). The numbers are in land-check.json; the drawing is made by
provenance/tools/landcheck.py from the footprint file and the maker's table.
# Land pattern check: RC0402FR-0740K2L
The footprint on this page is KiCad's standard library footprint `Resistor_SMD:R_0402_1005Metric`, renamed to
`R_0402_1005Metric_RC0402FR-0740K2L` so it can sit beside other parts in one library folder. The copper is unchanged.
This page compares those pads with the land pattern recommended by YAGEO.
Grey is the part body at its datasheet nominal size, teal is the KiCad copper, the dashed amber outline is the maker's
land (middle of its printed range, or its printed nominal), and the amber bands show where the maker allows the inner
and outer pad edges when it prints a range.
## Numbers
| Dimension | KiCad footprint | Maker's recommendation | Difference |
|---|---|---|---|
| gap between lands | 0.48 mm | 0.50 mm | -0.02 mm |
| land length | 0.54 mm | 0.50 mm | +0.04 mm |
| land width | 0.64 mm | 0.60 mm | +0.04 mm |
| overall length | 1.56 mm | 1.50 mm | +0.06 mm |
Maker's letters: A = overall length, B = gap between lands, C = land length, D = land width (YAGEO letters).
Source: YAGEO Chip Resistors Mounting V.10, p.4 Table 1 (reflow), size 0402.
## Result
The KiCad pads are within 0.06 mm of every YAGEO value (YAGEO prints nominal values only, with a placement accuracy of +/-0.15 mm), so the footprint matches the maker's pattern for practical purposes.
KiCad pad centres are at +/-0.51 mm, pad size 0.54 x 0.64 mm,
rounded rectangle (corner ratio 0.25). The numbers are in [land-check.json](land-check.json); the drawing is made by
`provenance/tools/landcheck.py` from the footprint file and the maker's table.