Editing Futaba MA series (section)

==Specifications==
Four series, model or part numbers have been recovered, along with their specifications.<ref name="ePartsHub-MA41-MA42" /><ref name="ePartsHub-MA71-MA72" />

The keycap mounts for these switches are neither described nor depicted, and the well-known latching version is not listed.

{| class="wikitable row-headings"
!Characteristic!!MA-41!!MA-42!!MA-71!!MA-72
!MA-4A
|-
|Action|| colspan="4" |Momentary
|
|-
|LED|| colspan="2" |No|| colspan="2" |Yes
|
|-
|Tactile feedback||Yes||No||Yes||No
|
|-
|Operating force|| colspan="4" |60±25 gf, 80±25 gf
|
|-
|Travel|| colspan="4" |3.8±0.5 mm
|
|-
|Pretravel|| colspan="4" |0.8 mm or more
|
|-
|Overtravel|| colspan="4" |0.7 mm or more
|
|-
|Bounce time|| colspan="4" |5 ms max (throughout lifetime)
|
|-
|Mounting pitch|| colspan="4" |19.05 mm
|
|-
|Lifetime|| colspan="2" |50M|| colspan="2" |10M
|
|-
|Specification||FS-6015A4||FS-6016A4||FS-6007A7||FS-6016A7
|
|}

The MA-41 [sic] switch specifications are also found in the [[:File:Sejin Electron SKM-2040 User's Manual.pdf|Sejin Electron SKM-2040 User's Manual]]; here the switch lifetime is given as 10 million cycles, and the bounce time as 10 ms.

The specifications are written out as unformatted text, which loses some clarity. As a consequence, the distinction between MA41 and MA42, and MA71 and MA72 isn't clear. Since the heavier space bar switches in keyboards do click, the reasonable interpretation is that both weights apply to each of the clicky and linear switches.

The existence of a momentary linear version of the switch has long been in dispute. [[Sejin Electron SKM-1040]] is specifically reported by a reseller to be linear, and this would fit in with the interpretation of MA42 as the linear equivalent to MA41. Most reports of linear<ref name="Linear" /> and tactile<ref name="GH_nctactile" /> versions of the switch are likely referring to worn switches that no longer click.<ref>YouTube — [https://www.youtube.com/watch?v=VJwxug4DNj4 Sejin 2040LH Futaba Switch]</ref> Such switches have never been examined internally as they cannot be opened non-destructively.

The [[Futaba MA series alternate action|alternate action version]] is however confirmed to use a different contact arrangement that appears to be linear, and this may be what is used inside MA42 and MA72.