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GRM1555C1H100JA01D - Murata

Public Made by Adom

by adom

MLCC 10 pF +/-5 %, 50 V, C0G, 0402 (1005 metric)

hardwarecomponentpassivecapacitor0402murata
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grm1555c1h100ja01d / land-pattern
Name Last commit message Last updated
land-check.json Component record for grm1555c1h100ja01d: files batch 1 · John Lauer 1d ago
land-pattern-icon.png Component record for grm1555c1h100ja01d: files batch 1 · John Lauer 1d ago
land-pattern.png Component record for grm1555c1h100ja01d: files batch 1 · John Lauer 1d ago
README.md Component record for grm1555c1h100ja01d: files batch 1 · John Lauer 1d ago

Land pattern check: GRM1555C1H100JA01D

The footprint on this page is KiCad's standard library footprint Capacitor_SMD:C_0402_1005Metric, renamed to C_0402_1005Metric_GRM1555C1H100JA01D 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 Murata.

KiCad pads over the maker's land, true scale

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 range Result
gap between lands 0.40 mm 0.30 to 0.50 mm inside
land length 0.56 mm 0.35 to 0.45 mm outside by +0.11 mm
land width 0.62 mm 0.40 to 0.60 mm outside by +0.02 mm
overall length (a + 2b, derived) 1.52 mm 1.00 to 1.40 mm outside by +0.12 mm

Maker's letters: a = gap between lands, b = land length, c = land width.

Source: Murata reference sheet, p.27 'Land Dimensions', Table 2 Reflow Soldering Method, GRM 15, 1.0x0.5 (within +/-0.10).

Result

The KiCad pads are larger than the maker's recommendation: land length by +0.11 mm, land width by +0.02 mm, overall length (a + 2b, derived) by +0.12 mm. The gap between the pads is inside the range. KiCad's footprint is generated to IPC-7351 nominal density (its own description says so), not to this maker's table. A design that wants the maker's land should shrink the pads to the numbers in the table.

KiCad pad centres are at +/-0.48 mm, pad size 0.56 x 0.62 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.