OBSF-30-G

1. Overview

The OBSF-30-G is the green color variant of Sanwa Denshi's flagship 30mm snap-in arcade pushbutton, the OBSF-30. Sanwa Denshi is the dominant Japanese arcade parts manufacturer, and the OBSF-30 is the de-facto standard button in professional arcade cabinets and tournament fightsticks worldwide. The -G suffix denotes the green colorway; all mechanical, electrical, and mounting specifications are identical to the base OBSF-30. Green is one of roughly 14–16 standard single-color variants Sanwa offers alongside two-tone variants (e.g., OBSF-30-K/G, black rim with green plunger).

2. User Sentiment

The OBSF-30 family commands near-universal praise in the FGC (fighting game community) for its feather-light, fast, and quiet actuation. Focus Attack buyers give it 5 stars, noting 15-minute full button installs and feel comparable to original Astro City arcade machines. The Pi Hut summarizes community consensus: "you can really feel the difference in quality and snappiness of the microswitches." A small but consistent complaint exists around batch-to-batch consistency — a Reddit r/fightsticks thread reports some units feeling "loose and squeaky" compared to others, pointing to occasional QC variation. The main competitor comparison is the Seimitsu PS-14-G, which has a flat (vs. convex) plunger, a stiffer spring, and fits thinner panels (1–3mm vs. 2–5mm) — a matter of personal preference rather than quality difference.

3. Real-World Applications

The OBSF-30-G is widely used in custom multi-color arcade stick builds and MAME cabinets, where green conventionally serves as a "confirm", "kick", or "action" button depending on the game's color-coding scheme. It is the OEM button in Taito Vewlix and Sega Blast City/Versus City arcade cabinets, and ships stock in Mad Catz TE/TE2, Qanba Obsidian, Qanba Dragon, Razer Atrox, Razer Panthera, Victrix Pro FS, Nacon Daija, and Mayflash F500 Elite fightsticks (in various colors including green for themed layouts). It is also used in Raspberry Pi arcade console builds, cocktail table restorations, and custom controller projects for PS3/Xbox 360 metal-panel controllers.

4. Technical Specifications

• Type: 30mm snap-in momentary pushbutton (SPST, normally open)
• Microswitch: Sanwa SW-68 (non-clicking, feather-light)
• Actuation force: ~55–65g
• Total travel: ~2.53mm
• Operating position: ~0.85mm (extremely short pre-travel)
• Panel thickness: 2–4mm (some sources cite up to 5mm)
• Mounting hole: φ30 ±0.1mm
• Plunger cap diameter: φ25mm (convex profile)
• Terminals: 2.8mm (.110in) spade (quick-connect, no soldering)
• SW-68 electrical rating: DC 12V / 100mA; contact resistance <50mΩ; rated 10M cycles
• Operating temperature: −20°C to +60°C
• Material: ABS plastic body; green plunger and green bezel
• Mechanical life: 1M–5M actuations (sources vary; SW-68 itself rated 10M)
• Weight: ~12g

5. Ordering & Compatibility

Retail pricing ranges from ~$1.65 (arcadespareparts.com) to $3.25 (Focus Attack, Paradise Arcade Shop) USD per button; EUR 2.63 (ArcadeXpress); GBP 2.25 (Pi Hut); CAD $3.99 (Canadian Joysticks); JPY 252–289 (Sengoku, Marutsu). Volume breaks available at Japanese component distributors (Marutsu: ¥255 at 100+). The OBSF-30-G is a direct drop-in for all 30mm snap-in holes and is cross-compatible with Hori, Mad Catz, Qanba, and MAS arcade control panels. Related variants: OBSF-30-K/G (black rim, green plunger), OBSN-30-G (screw-in mount), OBSC-30-G (clear snap-in), OBSFE-30 (foamless silent — no green-specific listing confirmed). Accessories: silencer foam washer (~$0.10 add-on at Focus Attack), #110 faston terminal cables, protective terminal sleeves. Recommended retailers for genuine product: Focus Attack, Paradise Arcade Shop, Arcade Shock (counterfeit units exist on Amazon marketplace and AliExpress).

6. Known Issues

Some users report occasional batch inconsistency — units that feel loose or produce a squeaky sound vs. the expected crisp, quiet action. The plunger's longer stroke-to-rim-contact compared to some competing brands can theoretically cause accidental presses if the button is only partially depressed. The plastic snap-in locking tabs can break if excessive force is used during installation; gentle, even pressure is recommended. No significant electrical or durability issues are reported with genuine Sanwa units.