OBSF-30-DK
ActiveOBSF-30 Dark Khaki 30mm Snap-in
Sanwa OBSF-30 dark khaki — military-inspired color.
Common Applications
Unique earth-tone for themed builds. Same Sanwa internals.
Research Notes
1. Overview
The Sanwa Denshi OBSF-30-DK is the dark khaki (olive) color of Sanwa's flagship OBSF-30 — the 30 mm snap-in arcade pushbutton that is the de-facto standard for main action buttons on Japanese-style arcade cabinets, fight sticks, and hitboxes. It uses Sanwa's crisp built-in microswitch (light, responsive, clicky feel), with the standard short travel. Dark khaki is one of Sanwa's muted/solid color options; feel and dimensions match the rest of the OBSF-30 line. (Color note: "-DK" reads as Dark Khaki; confirm the exact shade against the Sanwa color chart if it matters, since Sanwa also offers a dark-blue OBSF-30 under a different code.)
2. User Sentiment
Sanwa is the benchmark for Japanese arcade buttons — builders praise the smooth, light, responsive press and consistent quality. The OBSF-30 is the most-used tournament-grade action button; color choice (dark khaki here) is aesthetic, popular for muted/themed panels. Standard cautions: match snap-in vs screw-in mounting and confirm the 30 mm cutout.
3. Real-World Applications
Main action buttons on arcade cabinets, fight sticks, and hitbox/leverless controllers; dark khaki suits muted or themed color layouts. Pairs with 24 mm start/aux buttons.
4. Technical Specifications
- Type: 30 mm standard snap-in arcade pushbutton (dark khaki)
- Switch: built-in Sanwa microswitch (crisp/clicky)
- Travel: short (~0.8 mm)
- Actuation: light momentary
- Mounting: snap-in (30 mm cutout)
- Color: dark khaki (olive)
5. Ordering & Compatibility
Fits standard 30 mm snap-in panels; matches other OBSF-30 colors. Pairs with 24 mm buttons (OBSF-24) for a full layout. Sold by arcade specialists (Focus Attack, Paradise Arcade, Arcade Shock, Japanese retailers). For a quiet build, the OBSFS-30 (silent) is the dampened equivalent.
6. Known Issues
No reliability concerns — Sanwa quality. Practical notes: confirm snap-in vs screw-in and the 30 mm cutout, verify the microswitch tab size matches your wiring, and confirm the exact color/shade from the Sanwa chart. Beware clones (genuine Sanwa feel/durability differs).
2 sources
- Sanwa OBSF-30 30mm snap-in button, dark khaki — focusattack.com
- Sanwa OBSF-30 30mm snap-in arcade button (colors) — arcadeshock.com
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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Dark Khaki
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Color note
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DK = Dark Khaki (olive); confirm shade vs Sanwa chart (a dark-blue OBSF-30 exists under a different code)
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Diameter
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30mm
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Family note
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Standard OBSF-30 (clicky microswitch); silent = OBSFS-30
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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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Installation Quick Reference
Mounting: Snap-in buttons push into a 30mm 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
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
Price range
$11.75 — $59.62
across 2 distributors
Quick Specs
- Actuation Force
- 65g
- Color
- Dark Khaki
- Color note
- DK = Dark Khaki (olive); confirm shade vs Sanwa chart (a dark-blue OBSF-30 exists under a different code)
- Diameter
- 30mm
- Family note
- Standard OBSF-30 (clicky microswitch); silent = OBSFS-30
What People Are Saying
“Unique earth-tone for themed builds. Same Sanwa internals.”
