Taiwan jet axis

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Taiwan jet axis

Switch type	Linear, clicky
Sense method	Metal leaf
Keycap mount	Cherry MX mount
Switch mount	Plate mount

Taiwan jet axis (abbreviated TJ by alps.tw) is a series of Cherry MX clone switches. The manufacturer of the switch is not known.

Description

While the Aristotle Cherry MX clone series copied the entire design of the Cherry MX switch, the Taiwan jet axis series is only designed to be externally interchangeable; the switch internals are a custom design. The clicky version of the switch has a click leaf, relieving the contacts of the need to provide tactility. As such, the movable contact does not have Cherry's characteristic folded design and is essentially flat. The slider has side extensions that ride on guide poles, hence alps.tw's name for the switch.<ref name="MitacINC101" />

The use of a click leaf means that there is no space to mount a diode; the upper shell appears to have 180° rotational symmetry. The mould numbering is placed in the south position with respect to the writing orientation, but the writing appears either to the left or the right, depending on the orientation of the upper shell.

These switches are prominent for being one of the yellow-slider clones, but white (clear) sliders also exist. The meaning of the slider colour, if any, has yet to be determined.

With the clicky version, the tactile or click force appears to be ca. 75–78 g.<ref name="MitacINC101" />

Variants

USw LXBW02

White/clear slider, linear and clicky; mould numbering is written as F followed by one or more digits, or only digits; the slider bears curved recesses on the top

USw LXBY01

Yellow slider, linear; mould numbering comprises only digits

Keyboards

• Cotton COT-300 (white/clear slider, clicky)
• Dah Yang K-156 (yellow slider, linear)<ref name="K-156" />
• Dah Yang K-250 (yellow slider)<ref name="K-250" />
• Mitac 101 (white/clear slider, clicky)
• Unitek K-260
• Unbranded POS keypad (white/clear slider, linear)<ref name="UNK-POS" />
• Unidentified keyboard (white/clear slider, linear)<ref name="UNK-KBtalKing" />

Gallery

USw LXBW02

Found in a Mitac 101 keyboard.

• 
  Overview
• 
  Switches in place
• 
  Disassembled switch

USw LXBY01

Found in a Unitek K-260 keyboard.

• 
  Overview
• 
  Switches in place

References

<references> <ref name="MitacINC101">KBtalKing — ⊙.⊙MitacINC101台灣噴射軸鍵盤⊙.⊙ (Chinese) Dated 2012-09-05. Retrieved 2015-08-02.</ref> <ref name="K-156">tttっちゃtttttったりttttったいね — SENCO DKW67MK-156 Cherry偽黄軸 リニア (Japanese) Dated 2014-02-09. Retrieved 2015-08-02.</ref> <ref name="K-250">Geekhack — Found a Unitek K-260 Posted 2013-06-23. Retrieved 2015-08-02.</ref> <ref name="UNK-POS">Deskthority — What switch is this? (MX-compatible linear) Posted 2014-12-07. Retrieved 2015-08-02.</ref> <ref name="UNK-KBtalKing">KBtalKing — 昨天在網絡上看到這兩把鍵盤 (Chinese) Dated 2010-06-08. Retrieved 2015-08-02.</ref> </references>