Metal Dome Dimensions and Installation
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Searching web for: "836-000S-260 datasheet HYP metal dome LCSC C256175"
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Short answer:
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Dimensions: I need the datasheet to quote exact dimensions. If you share the datasheet for 836-000S-260, I’ll pull the mechanical drawing verbatim. LCSC’s listing suggests a ~4.1 mm by 2.45 mm rectangular dome, but I won’t state exact values without the datasheet.
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How metal domes are added:
- Not soldered. They’re applied as loose domes or, more commonly, as pre-cut PET “dome arrays” with pressure‑sensitive adhesive, after PCB reflow and cleaning.
- PCB contact design: one central pad and an annular ring (often with radial spokes). Use ENIG; keep soldermask off the contact area with a mask dam around it. No paste.
- Venting: add a small vent hole under the dome to equalize pressure; keep copper/vias away from the hole and contact area.
- Keepouts: no components, vias, or tall silks within the dome footprint plus adhesive margin.
- Placement: align via tooling/fiducials; press to bond; often covered by an overlay or keycap for actuation.
- Reliability: clean surface before application; consider ESD control and shielding ring if needed.
If you can provide or confirm the datasheet link for 836-000S-260, I’ll extract the exact overall size, height, and recommended land pattern directly from it.
Provide datasheet
Copper pad size
Vent hole diameter
Adhesive backing
Dome height data
193 days
Ready.
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