SKQGAFE010

1. Overview

The SKQGAFE010 is a surface-mount (SMD) TACT Switch from Alps Alpine (formerly Alps Electric), part of the SKQG series — a family of 5.2mm square, low-profile tactile switches designed for high-density PCB assemblies. The part offers a "sharp feeling" momentary actuation with a 0.98N (approximately 100gf) operating force and a 1.5mm total height with stem (0.8mm variant without stem also exists). It is classified as an automotive-qualified component and is listed as "standard / recommended for new designs" on the Alps Alpine product portal. The SKQG series spans four actuation-force variants: SKQGAFE010 (0.98N), SKQGABE010 (1.57N), SKQGADE010 (2.55N), and SKQGAKE020 (3.43N), all sharing the same footprint and 500,000-cycle life rating.

2. User Sentiment

The SKQGAFE010 earns favorable comments across maker and hobbyist communities for its light, quiet actuation. On the Retro-Spektro ZX Spectrum keyboard replacement project, the switch is described as delivering "silent quiet pressing" with a feel "very similar to pressing the original membrane" — at 0.98N vs. 2.45N for non-Alps alternatives, users find it noticeably gentler. A RG35XXSP handheld console modder reported that replacing the original 160gf buttons with SKQGAFE010 (100gf) made them "about 40% lighter" and "much quieter," with the author noting it was accessible as a first-time SMD soldering project. GitHub and keyboard-design discussions (BLe-Chiffre wireless keyboard, Masterzen keyboard blog) reference it as a go-to SMD reset/utility button due to its small footprint and reliable snap action. No significant reliability complaints appear in available community sources.

3. Real-World Applications

Alps Alpine lists consumer electronics, home appliances, and communication equipment as primary applications. In practice, the switch appears widely in: compact custom keyboards (reset buttons, utility switches), DIY game controllers (Input Labs Alpakka — four units used as back trigger buttons L2/R2/L4/R4), retro computer keyboard membrane replacements (ZX Spectrum 16K/48K), game console button mods (Anbernic RG35XXSP), embedded microcontroller boards (Flying Stone Mini-55, ATtiny breakout boards), and automotive remote controls. The gull-wing SMD terminals and small 5.2mm footprint make it well-suited for space-constrained designs where hand-soldering is still required — makers note the relatively long legs allow easier iron access than typical SMD components.

4. Technical Specifications

• Type: SPST-NO (Normally Open) Momentary Tactile Switch — TACT Switch™
• Series: SKQG (Alps Alpine)
• Mount: Surface Mount (SMD), gull-wing terminals
• Actuator: Top-push, round button
• Dimensions (W×D×H): 5.2 × 5.2 × 1.5 mm (with stem); 5.2 × 5.2 × 0.8 mm (without stem)
• Operating Force: 0.98 N (100 gf) — "sharp feeling"
• Travel: 0.25 mm
• Contact Rating: 50 mA at 12 V DC (max); 10 μA at 1 V DC (min)
• Initial Contact Resistance: 100 mΩ max
• Insulation Resistance: 100 MΩ min (100 V DC, 1 min)
• Dielectric Withstand: 250 V AC for 1 min
• Operating Life: 500,000 cycles
• Operating Temperature: −40 °C to +90 °C
• Humidity: 60 °C, 90–95% RH, 96 h
• Vibration: 10–55 Hz, 1.5 mm amplitude, 3 axes × 2 h each
• Packaging: 4,000 pcs/reel (12 mm tape width); RoHS compliant; Automotive qualified

5. Ordering & Compatibility

The SKQGAFE010 is widely stocked globally. DigiKey (PN: 4809-SKQGAFE010TR-ND) lists single-unit price at ~$0.31 USD with 32-week lead time from manufacturer and ~2,400 units in stock. LCSC prices at $0.067–$0.137 USD depending on volume (4,000+ units/reel). Jameco, Arrow, Newark (PN: 94T3266), RS Components (RS 758-2060), TME, Mouser, and JLCPCB all stock it. AliExpress and Alibaba sellers offer bags of 10–25 pcs for prototyping at ~$2 per lot. PCB footprint uses 4-pad gull-wing layout; compatible ECAD symbols/footprints/3D models available via SnapEDA and ComponentSearchEngine (works with Altium, KiCad, Eagle, OrCAD). The SKQG series shares footprint across force variants, enabling drop-in substitution between SKQGABE010, SKQGADE010, and SKQGAKE020 if different actuation forces are needed.

6. Known Issues

No significant reliability issues are reported in available community or distributor sources. One minor caution: an AliExpress wiki article claims compatibility with "24V DC systems," which contradicts the official 12 V DC maximum rating — users should adhere to the Alps Alpine datasheet specification of 50 mA / 12 V DC. The switch has no water or dust resistance rating (IP rating not applicable per spec), making it unsuitable for exposed or harsh-environment applications without additional sealing. A small number of counterfeit/clone units circulate in Chinese wholesale markets described as "original ALPS" — buyers should source from authorized distributors (DigiKey, Mouser, RS, LCSC, Arrow) for guaranteed genuine parts.