

Overview
The KSC321JLFS is a tactile Switche made by C&K in a SMD,6.2x6.2mm package with 4 pins. -40℃~+85℃ 2N 3.5mm 32V 50mA 6.2mm 6.2mm IP67 J-Lead Round Button SPST Surface Mount,Vertical SMD,6.2x6.2mm Tactile Switches ROHS.
PCBKit's library has its KiCad symbol (Switches:PB SPST 12NO-34NO, from CERN's library) and its footprint (Switches:PB_C&K_KSC321J, from CERN's library), ready for a KiCad board. JLCPCB lists it (part C221733). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
14- Actuator Style
- Round Button
- Circuit
- SPST
- Contact Current
- 50mA
- IP Rating
- IP67
- Length
- 6.2mm
- Mounting Style
- Standing paste
- Mounting Type
- Surface Mount,Vertical
- Operating Force
- 2N
- Operating Temperature
- -40℃~+85℃
- Pin Style
- J-pin
- Switch Height
- 3.5mm
- Termination Style
- J-Lead
- Voltage Rating
- 32V
- Width
- 6.2mm
Order codes
1- KSC321JLFSLCSC C221733
Pinout
4| Pin | Name | Type |
|---|---|---|
| 1 | 1 | Input/output |
| 2 | 2 | Input/output |
| 3 | 3 | Input/output |
| 4 | 4 | Input/output |
Open-source boards using it
All 1- 10 layers150.8 × 96.4 mm

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Is there a KiCad symbol and footprint for the KSC321JLFS?
Yes. The symbol is Switches:PB SPST 12NO-34NO and the footprint Switches:PB_C&K_KSC321J, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the KSC321JLFS?
SMD,6.2x6.2mm, with 4 pins. Its footprint is drawn on this page.
Where is the KSC321JLFS datasheet?
C&K publishes it: the Datasheet link on this page opens it.
Where can I order the KSC321JLFS?
JLCPCB lists it as part C221733, with 0 in stock; the sellers' links on this page open their listings.
Which open-source boards use the KSC321JLFS?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.