George Risk Industries KBM-DIN
Contents
Overview
KBM-DIN was GRI’s DIN-compliant keyboard switch type. It was supplied to GRI by Mitsumi and will be one of the Misumi KLT models. From the catalogue entry depiction, it appears to accept Cherry MX keycaps.
At the time of writing, February 2022, a small number remain (no more than 1,000) remain available for sale, and they will be suitable as a substitute for the difficult-to-find Mitsumi switches. Quite which Mitsumi KLT variant these represent remains to be determined.
Specifications
| Total travel | 0.157±0.020″ (equiv. 4.0±0.5 mm) |
|---|---|
| Pretravel | 0.100±0.005″ (equiv. 2.5±0.1 mm) |
| Operating force | 1.23±0.35 oz (equiv. 35±10 g) |
| Rated current | 5 mA |
| Rated voltage | 12 V DC |
| Contact bounce | 5 ms max. |
| Rated lifetime | 10 million cycles |
Models
Only a single model, KBM-DIN, is given in the catalogue. This does not preclude GRI from having supplied other Mitsumi models as required. GRI no longer have the Mitsumi part number on file, as it has been too long now since KBM-DIN was discontinued.
| Model | Type | Mitsumi part |
|---|---|---|
| KBM-DIN | Momentary tactile, SPST NO |
Documentation
- KBM-DIN catalogue entry, provided by GRI