RAFI RS 74 and RS 76 types list

German firm Meyer Industrie-Electronic GmbH had on their website a list of RAFI part numbers along with very brief descriptions. Unlike many such lists on many such sites, this list seemed to be accurate, as known RAFI types corresponded with the descriptions given. The list suggested that RAFI made significantly more full-travel keyswitch (RS 74 M, RS 76 C and RS 76 M) types than we are aware of. According to Meyer, the part numbers came from price lists; they refused to provide any other information and have since deleted the pages.

One distinct type (not counting LED colours) exists that is apparently not listed, being 3.12.960.905 (RS 74 M SPDT alternate action). Until the seller confirms that the part number is correct (the switch is advertised as RS 76 M!) this is assumed to be a type missing from Meyer’s lists.

Considering that the orange diode types are marked with the batch or date code followed by “2”, that would suggest that they are 3.13.005.002, and indeed there is such a part number waiting. (Looking for that part number is how this list came to be found.)

Switches

The terminology is as follows (free translation in context):

M-einbautaster

Mechanical keyswitch

C-einbautaster

Contactless keyswitch

Taster

Momentary keyswitch (literally, “pushbutton”)

Schalter

Alternate action keyswitch (literally, “switch”)

Leucht

Illuminated (from “beleuchtet”)

Leertaste

Space bar

Leertaster

Dummy switch

The table below lists known RS 74 and RS 76 switches. Types marked “👁️” have been observed. Types marked “📖” are only known from catalogues. All part numbers are normalised into the modern format (five digit groupings with subtype code).