OBSF-24
ActiveOBSF-24 Snap-in Arcade Button (24mm)
24mm snap-in arcade push button from Sanwa Denshi. Same premium quality as the OBSF-30 in a smaller form factor, ideal for start/select, home, and auxiliary button positions.
Common Applications
Used for start, select, and auxiliary buttons in arcade cabinets and fightsticks. The smaller 24mm size distinguishes it from the main 30mm action buttons. Snaps into a 24mm panel hole.
Specifications
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Actuation Force
The force needed to press the button. Lower = more sensitive. Sanwa ~65g (light), Seimitsu ~85g (medium), Happ ~130g (heavy).
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65g
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Color
Button/actuator color. Green = start/go, Red = stop/emergency, Yellow = caution, Blue = reset (per IEC 60204-1).
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Various (White, Black, Red, Blue, Yellow, Green, etc.)
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Contact Configuration
Normally Open — circuit is off until you press. Standard for start/go/enable functions.
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NO (normally open)
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Diameter
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24mm
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Material
The bezel/body material. Metal bezels are more durable in harsh environments. Plastic is lighter and cheaper.
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ABS plastic
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Mechanical Life
How many press cycles before mechanical failure. Higher is better — 10M cycles at 100 presses/day = 274 years.
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5,000,000 cycles
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Microswitch Type
The internal switch mechanism. Built-in = sealed unit. Cherry D44X = replaceable, clicky. Omron = quieter, longer life.
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built-in
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Mounting Type
How the button attaches to the panel. Panel mount is standard — installs through a cutout from the front.
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snap-in
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Panel thickness
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1-5mm
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Travel Distance
How far the button moves when pressed. Shorter = faster response. Sanwa 0.85mm is extremely short for competitive gaming.
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0.85mm
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Installation Quick Reference
Mounting: Snap-in buttons push into a 24mm hole from the top of the panel. Screw-in buttons thread from below and secure with a nut. Use 2-3mm acrylic, wood, or metal panel.
Wiring: Connect the microswitch terminals to your encoder or PCB. Common ground shared across all buttons. Quick-disconnect (0.110") terminals are standard on Japanese buttons.
Dimensions
Wiring Diagram
Troubleshooting
Not responding to input
Check wiring continuity with a multimeter. Verify the contact block is properly seated. Inspect terminals for loose connections.
Where to Buy
Quick Specs
- Actuation Force
- 65g
- Color
- Various (White, Black, Red, Blue, Yellow, Green, etc.)
- Contact Configuration
- NO (normally open)
- Diameter
- 24mm
- Material
- ABS plastic