Choc v1, Choc v2 and Mini Choc

Choc is Kailh's family of low-profile switches: Choc v1, Choc v2 and the smaller Mini Choc. A board takes the one it was drilled for, so check which before you buy switches.

The holes each switch needs in the PCB, from Kailh's drawings, to scale and seen from the top. The dashed square is the 15 × 15 mm switch, the colored dots its two pins, in the same place on both. Kailh's v2 drawing also has a small 2 × 1.5 mm slot.

	Choc v1	Choc v2	Mini Choc
Kailh part	PG1350	PG1353	PG1232
Stem	Two narrow prongs	A cross, like MX	Takes Choc caps
Travel	3.0 mm	3.2 mm	2.4 mm
PCB holes	3.4 mm center, two 1.9 mm side posts 11 mm apart	5 mm center, no side posts	Its own pattern

A v2 switch won't go in a board drilled only for v1, because its center post needs the 5 mm hole. A v1 switch won't go in a v2 board either: its side posts have no holes. Some boards are drilled for both, and each design page lists every footprint its board takes.

The stem decides the keycaps. Most Choc-spaced caps are made for v1 and don't fit v2. Key spacing names some that do.

The Mini Choc fits only Mini Choc boards. Kailh says it doesn't take MX caps, and Deskthority's switch wiki lists its keycap mount as Kailh Choc, the same as Choc v1's.

There is one more low-profile Kailh switch here, the Kailh X (PG1425), a different design again.

Kailh X designs 1

★ 107 bad wings slim by hazels-garage 36 keysunibody

See it in the catalog →

Choc v1, Choc v2 and Mini Choc

Choc v1 designs 106

Choc v2 designs 2

Mini Choc designs 4

Kailh X designs 1