MX1A-E1NA
現行品Cherry MX Blue Clicky Keyswitch
Cherry MX Blue — tactile clicky keyswitch.
主な用途
The classic clicky switch. Audible click and tactile bump at actuation point. Popular for typing-focused keyboards and transcription stations. The click mechanism inspired countless clones after the patent expired.
模倣品に関する注意 High リスク
Same counterfeit risk as all Cherry MX. Blue is especially counterfeited due to its popularity. The click mechanism on genuine Cherry is precise and consistent — fakes often have mushy or inconsistent clicks.
仕様一覧
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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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50cN (50g)
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Certifications
Third-party safety certifications. UL = required for US NEC installations. CE = EU compliance. CSA = Canadian standards.
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UL, CE
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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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Blue stem
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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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100,000,000 cycles
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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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PCB mount / plate mount
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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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2.2mm actuation, 4mm total
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取付クイックリファレンス
Panel cutout: 22mm. Insert from the front of the panel, secure with mounting nut from behind (tighten to 2-3 Nm).
Contact block: Snap or screw the contact block onto the rear of the button body. Ensure the contact block orientation matches the wiring diagram — NO terminals are usually marked.
Wiring: Use 0.5-2.5mm² stranded wire with ferrules. Tighten screw terminals to 0.8 Nm. Test the button function before energizing the circuit.
外形寸法
トラブルシューティング
Button doesn't respond when pressed
Check the contact block first — it's the most common failure point. Test continuity across the NO or NC terminals with a multimeter. If no click is felt, the return spring in the head may be broken.
Works intermittently
Contact block contacts are pitted or burned. Replace the contact block — don't try to file the contacts. Check if the rated cycle count has been exceeded.
Button feels mushy or doesn't click
The spring return mechanism in the button head is worn. Replace the head. The contact block can usually be reused if it tests OK.
主要仕様
- Actuation Force
- 50cN (50g)
- Certifications
- UL, CE
- Color
- Blue stem
- Mechanical Life
- 100,000,000 cycles
- Mounting Type
- PCB mount / plate mount
ユーザーの声
“Cherry MX switch is well-regarded in the mechanical keyboard community. Rated for 100,000,000 cycles cycles. The MX-compatible stem works with all standard keycaps.”
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