Add Crystal Murata XRCGB 2.0x1.6mm

[rleh]

Add Crystal Murata XRCGB 2.0x1.6mm

Datasheet Link: https://www.murata.com/~/media/webrenewal/campaign/ads/america/timing/p79e.ashx?la=en-us

3D model: KiCad/kicad-packages3D#654

[aewallin]

I don't see how the silkscreen indicates where pin1 is?

[rleh]

The crystal is symmetrical (like a resistor or ceramic capacitor), so I don't think a pin1 marker makes sense.

[evanshultz]

@rleh
There is no clause in https://kicad-pcb.org/libraries/klc/F5.1/ that allows pin 1 silk mark to be skipped, so please add it. Thank you.

[rleh]

Ok, I added the pin 1 indicator.

Thank you for reviewing!

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There is no clause in https://kicad-pcb.org/libraries/klc/F5.1/ that allows pin 1 silk mark to be skipped, so please add it.

This is funny because some of the components in the example picture don't even have a pin 1 marker. So the footprints of the classic SMD resistors and capacitors are all wrong, aren't they?

[rleh]

Footprint renamed: muRata -> Murata (According to #545)

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I fixed the courtyard clearance (0.5mm for crystals).

Silkscreen clearance is 0.19mm (KLC suggestion: 0.2mm) from copper pad to edge of the silkscreen line to fit into 0.1mm grid. Ok?

Correctness check:

Drawing from datasheet:

[ghost]

@rleh
There is no clause in https://kicad-pcb.org/libraries/klc/F5.1/ that allows pin 1 silk mark to be skipped, so please add it. Thank you.

Related: KiCad/kicad-website#422

For this part I personally think the Pin1 indicator is usefull. The Layout of the pads is almost 90° roation-symmetrical. After soldering it is really hard to see if the part is mounted correctly or perhaps rotated by 90°.

[rleh]

I'm fine with both choices, it should only be clear in KLC when a Pin1-Parker (or "polarity" marker) is intended.

According to the comments I added the marker some time ago.