Date: 20/09/2008

Advanced compact push switches from Mitsumi

Mitsumi launched the new SOF series of push switch that has the button on its top. The thickness of push switch is 1mm. This is re-engineered version of Mitsumi's thin side-click type tactile switches, which are in commercial production. But the button & the top cover is changed limiting the thickness of the switch to just 1mm.

Mitsumi said that the new series of switches comes with thickness and packaging footprint reduced by 33% and 25% respectively, compared to the older SOE series.

Two models are released based on the thickness difference to satisfy the user needs.

Some of the features include:

1. External dimensions: 3.3×2.9mm (Thickness of the switch itself is 1mm, whereas the button is 1.2mm or 1.5mm in height.)
2. Contacts are covered with tape to provide superior dust-proofing and weather-proofing.
3. Good touch feeling and longer switch life are achieved with the stainless steel click spring.
4. Good mechanism to make it possible to push right on the sweet spot on the switch by ingeniously designing the click spring and button shape.

Some of the main specifications are,

1. Operating force 1.6N
2. Recoiling force 0.2N or more
3. Rating DC12V, 50mA (Resistive load)
4. Contact resistance 1O or less
5. Insulation resistance 10MO or more
6. Withstanding voltage AC100V (For one minute, Sensitive current: 2mA)
7. Switch life (Number of actions) 100,000 actions (On/Off)