KMR231GLFS

C&K

-40℃~+85℃ 1.9mm 2.8mm 32V 3N 4.6mm 50mA Gull Wing Round Button SPST Surface Mount,Vertical SMD,4.6x2.8mm Tactile Switches ROHS

Extended

Datasheetc-k/KMR231GLFS

Category: Tactile Switches
Package: SMD,4.6x2.8mm
Pins: 5

Overview

The KMR231GLFS is a tactile Switche made by C&K in a SMD,4.6x2.8mm package with 5 pins. -40℃~+85℃ 1.9mm 2.8mm 32V 3N 4.6mm 50mA Gull Wing Round Button SPST Surface Mount,Vertical SMD,4.6x2.8mm Tactile Switches ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:KMR231GLFS, from EasyEDA) and its footprint (EasyEDA_Cloud:KEY-SMD_KMR2XXGXXX, from EasyEDA), ready for a KiCad board. 13,383 are in stock at JLCPCB (part C99271). 13 open-source boards in 11 repositories on GitHub use it.

Symbol

EasyEDA_Cloud:KMR231GLFSFrom EasyEDA

Footprint

EasyEDA_Cloud:KEY-SMD_KMR2XXGXXXFrom EasyEDA

Parameters

Actuator Style: Round Button
Circuit: SPST
Contact Current: 50mA
Length: 4.6mm
Mounting Style: Brick nogging
Mounting Type: Surface Mount,Vertical
Operating Force: 3N
Operating Temperature: -40℃~+85℃
Switch Height: 1.9mm
Termination Style: Gull Wing
Voltage Rating: 32V
Width: 2.8mm

Order codes

KMR231GLFSLCSC C99271

Pinout

The pins of the KMR231GLFS
Pin	Name	Type
1	1	Unspecified
2	2	Unspecified
3	3	Unspecified
4	4	Unspecified
5	5	Unspecified

Open-source boards using it

All 13

2 layers429.6 × 540.7 mm
Keyboard
joshajohnson/louise
A project between Josh and RiotPunch to build a 75% alice keyboard with a southpaw numpad.
327 parts5
4 layers79.5 × 20 mm
Matter usb switch
IvanVeloz/smart-usb-plug
A smart plug for USB with energy measurement and Matter over Thread support
65 parts2GPL-3.0
2 layers304.9 × 120.7 mm
Keyboard75
benzooku/comp75
Keyboard Project with PCB design. 75% layout
386 parts1GPL-3.0
2 layers60 × 42 mm
Smart safety tag
balu-16/SeedGrant_Safety
Personal-safety project: Expo / React Native client + FastAPI + PostgreSQL (Supabase) backend + React admin portal.
83 parts
2 layers
BeehiveSat SBC
CanGulmez/PCB-Designs
PCB board designs with KiCAD 8
351 parts
2 layers30 × 30 mm
EyeCubeG2
MeisterBertil/EyeCube-PCB

60 parts
2 layers69.6 × 49.4 mm
BoardRev1
richardmcmanusjr/FillErUp
Senior Design Project - Class of 2024
40 partsMIT
2 layers64.3 × 24.5 mm
Intercom
tylerreckart/arthur
A silicon assistant.
62 parts

Show this part on your page

A live frame, for any web page

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A picture

<img src="https://pcbkit.io/embed/parts/c-k/KMR231GLFS.jpg" alt="KMR231GLFS" width="1200" height="900">

A picture that opens the part, for a README

[![KMR231GLFS](https://pcbkit.io/embed/parts/c-k/KMR231GLFS.jpg?size=s)](https://pcbkit.io/parts/c-k/KMR231GLFS)

Questions

Is there a KiCad symbol and footprint for the KMR231GLFS?

Yes. The symbol is EasyEDA_Cloud:KMR231GLFS and the footprint EasyEDA_Cloud:KEY-SMD_KMR2XXGXXX, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the KMR231GLFS?

SMD,4.6x2.8mm, with 5 pins. Its footprint is drawn on this page.

Where is the KMR231GLFS datasheet?

C&K publishes it: the Datasheet link on this page opens it.

Where can I order the KMR231GLFS?

JLCPCB lists it as part C99271, with 13,383 in stock; the sellers' links on this page open their listings.

What can replace the KMR231GLFS?

Parts like it in the library: the KMR221GLFS by C&K and the KMR631NGULCLFS by C&K. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the KMR231GLFS?

13 boards in 11 repositories on GitHub; the most starred are listed on this page, with their KiCad files.