KMR221GLFS

C&K

-40℃~+85℃ 1.9mm 2.8mm 2N 32V 4.6mm 50mA Gull Wing Round Button SPST Surface Mount,Vertical SMD,4.6x2.8mm Tactile Switches ROHS

Extended

Datasheetc-k/KMR221GLFS

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

Overview

The KMR221GLFS is a tactile Switche made by C&K in a SMD,4.6x2.8mm package with 5 pins. -40℃~+85℃ 1.9mm 2.8mm 2N 32V 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_Pro:KMR221GLFS, from EasyEDA Pro) and its footprint (EasyEDA_Cloud:KEY-SMD_KMR2XXGXXX, from EasyEDA), ready for a KiCad board. 3,007 are in stock at JLCPCB (part C72443). 39 open-source boards in 37 repositories on GitHub use it.

Symbol

EasyEDA_Pro:KMR221GLFSFrom EasyEDA Pro

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: 2N
Operating Temperature: -40℃~+85℃
Pin Style: Gull Wing
Switch Height: 1.9mm
Termination Style: Gull Wing
Voltage Rating: 32V
Width: 2.8mm

Order codes

KMR221GLFSLCSC C72443

Pinout

The pins of the KMR221GLFS
Pin	Name	Type
1	1	Unspecified
2	2	Unspecified
3	3	Unspecified
4	4	Unspecified
5	5	Unspecified

Open-source boards using it

All 39

4 layers90 × 40 mm
Usb3-ngff carrier
themainframe/5g-m2-usb3-interface-pcb
KiCad EDA Project for my 5G M.2 (NGFF) USB3 Interface board
62 parts80MIT
2 layers46 × 19 mm
MCU Link Standalone
ErichStyger/McuLink-Mini
Version of the NXP MCU-Link Debug CMSIS-DAP Debug Probe.
69 parts32MIT
2 layers57.9 × 39.9 mm
MCU Link MR
ErichStyger/MCU-Link-MR
Open Source MCU-Link CMSIS-DAP Debug probe for mobile robots (e.g. Pixhawk)
121 parts20MIT
4 layers42 × 55.8 mm
P3-cellular module
themainframe/p3-cellular-module
CAD/CAM for a GPD Pocket 3 Cellular Module
54 parts14
4 layers40 × 20 mm
Dictofun
rundb/dictofun
Very portable voice recorder with speech recognition.
122 parts6Apache-2.0
6 layers51 × 65 mm
Owo
hydrastro/owo
uwu
135 parts3
2 layers59 × 22 mm
CANberry
joshajohnson/car-hacking
A repo for assorted tools, projects, and documentation.
86 parts2
2 layers99.6 × 49.8 mm
Stasis badge
MeghanaM4/stasis-badge

74 parts2

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/KMR221GLFS.jpg" alt="KMR221GLFS" width="1200" height="900">

A picture that opens the part, for a README

[![KMR221GLFS](https://pcbkit.io/embed/parts/c-k/KMR221GLFS.jpg?size=s)](https://pcbkit.io/parts/c-k/KMR221GLFS)

Questions

Is there a KiCad symbol and footprint for the KMR221GLFS?

Yes. The symbol is EasyEDA_Pro:KMR221GLFS 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 KMR221GLFS?

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

Where is the KMR221GLFS datasheet?

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

Where can I order the KMR221GLFS?

JLCPCB lists it as part C72443, with 3,007 in stock; the sellers' links on this page open their listings.

What can replace the KMR221GLFS?

Parts like it in the library: the KMR231GLFS 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 KMR221GLFS?

39 boards in 37 repositories on GitHub; the most starred are listed on this page, with their KiCad files.