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Keyboard–switch database Mitsumi Miniature Mechanical


Manufacturer Mitsumi

Created by Daniel on 2015-10-28; modified by Daniel on 2015-12-21


Miniature White (Mitsumi mount): 1
Miniature Yellow: 1
Miniature Green (MX mount): 1
Miniature Green (Mitsumi mount): 2
Total: 2 1 2
Year: 1990 1991 1992 1993 1994

Warning: Please note that the timeline must not be trusted until a statistically significant number of data points are present.


Switch Variants Part number Type Usage
Miniature Mechanical Green (Mitsumi mount) 2
Miniature Mechanical Green (MX mount) 2
Miniature Mechanical White (Mitsumi mount) 1
Miniature Mechanical Yellow 1


Model Year(s) Switches Serial PCB codes Reference Notes
Filco FKB-97S None Mitsumi Miniature Green (MX mount) (other) 9801007551 telcontar.net I forget the specifics, but I seem to recall that the images at both references are of the same keyboard (this was discussed in IRC, not the forum).

The switch is simplified black Alps, but having discovered that tactile, click and linear simplified black switches exist, and with no known details posted about this keyboard, this entry is effectively disqualified (except for the Mitsumi switch).
Epson PCLTP2 1989 (IC)
1990 (PCB)
Mitsumi Miniature White (Mitsumi mount) 023939
36900914 (int.)
Chicony KB-5191 1988 (case)
1990 (PCB)
1990 (IC)
Mitsumi Miniature Yellow T01108071 MITSUMI SW REV-B kbd.rzw.jp
Chicony KB-5192 1991 (case)
1992 (IC)
Mitsumi Miniature Green (MX mount) TFS3109368 MITSUMI SW REV-A plus.google.com Supposedly (according to the DT wiki) the switches are tactile, but the referenced page does not make any such claims.
Burton J31KB001 1994 (PCB)
1994 (IC)
Mitsumi Miniature Green (Mitsumi mount) 9029588
20940217 (int.)
Toshiba J31TP001 1994 (PCB)
1994 (IC)
Mitsumi Miniature Green (Mitsumi mount) 08443994
20940810 (int.)
56B537A, KLM-E19YC kbd.rzw.jp