CS-JELLY-BLACK
在产Akko CS Jelly Black Linear 50g
Akko Jelly Black — premium linear with UPE stem material.
常见应用
Akko Jelly series uses UPE (ultra-high molecular weight polyethylene) stem — self-lubricating like POM but with a different sound signature. Deeper thock than standard nylon. At $0.25/switch its the cheapest premium-material switch available.
Research Notes
1. Overview
The Akko CS Jelly Black is a linear MX-style mechanical keyswitch with a translucent "jelly" housing and a black stem. It's rated 50 gf actuation, but an extension (longer) spring gives it a firmer, heavier feel through the stroke — Akko markets it as the heaviest of the CS series. Travel is 2 mm actuation / 4 mm total, and it's factory-lubed. It uses a 3-pin (plate-mount) design and is MX keycap compatible.
2. User Sentiment
Liked as a heavier budget linear — the extension spring makes it feel more substantial than a typical 50 gf linear, appealing to users who find light linears too easy to bottom out. Praised as good value with a nice deep sound from the translucent housing. Usual budget caveats apply (stock lube/consistency are fine for the price), and note the 3-pin design means plate-mount builds (or clipping/soldering for 5-pin PCBs).
3. Real-World Applications
Custom and enthusiast mechanical keyboards wanting a firmer, deeper-feeling linear on a budget — gaming/typing in plate-mount (3-pin) or hot-swap builds that accept 3-pin switches.
4. Technical Specifications
- Type: Linear, MX-style mechanical
- Actuation force: ~50 gf (feels heavier — extension spring; heaviest CS switch)
- Travel: 2 mm actuation, 4 mm total
- Life: ~80 million actuations (per Akko listing)
- Housing/stem: translucent "jelly" housing, black stem
- Mount: 3-pin (plate mount), MX keycap compatible; factory-lubed
5. Ordering & Compatibility
Sold in packs (e.g. 45 pcs), lubed or standard. Being 3-pin, it seats cleanly in plate-mount boards; for 5-pin hot-swap PCBs the fit is still fine (3-pin switches work in 5-pin sockets). Takes MX keycaps. Part of Akko's CS/V3 lineup (other CS linears/tactiles available).
6. Known Issues
No major reliability issues. Practical notes: it's heavier-feeling than its 50 gf rating (extension spring — not for those wanting a light linear), it's a 3-pin switch (plan plate vs PCB mount accordingly), and it's a standard MX contact switch (not a Hall-effect/magnetic switch).
2 sources
- Akko CS Jelly Black Switch — 50gf linear, extension spring — akkogear.com
- Akko CS Jelly Black — linear 50g, 3-pin — switchmodders.com
规格参数
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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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50g
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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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Black stem, translucent housing
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Keycap compat
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MX-compatible
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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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80,000,000 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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3-pin plate mount
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Switch type
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Linear (MX-style contact, extension spring, factory-lubed)
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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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2mm actuation, 4mm total
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安装快速参考
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.
尺寸
故障排除
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.
快速规格
- Actuation Force
- 50g
- Color
- Black stem, translucent housing
- Keycap compat
- MX-compatible
- Mechanical Life
- 80,000,000 cycles
- Mounting Type
- 3-pin plate mount
用户评价
“Akko Jelly series uses UPE (ultra-high molecular weight polyethylene) stem — self-lubricating like POM but with a different sound signature. Deeper thock than standard nylon. At $0.25/switch its the c”
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