

Overview
The FSM2JSMAATR is a tactile Switche made by TE Connectivity in a SMD-4P,6x6mm package with 4 pins. -40℃~+85℃ 100,000 cycles 2.6N 24V 4.3mm 50mA Gull Wing Round Button SPST-NO Surface Mount,Vertical SMD-4P,6x6mm Tactile Switches ROHS.
PCBKit's library has its footprint (EasyEDA_Cloud:SW-SMD_4P-L6.0-W6.0-P4.50-LS10.0-1, from EasyEDA), ready for a KiCad board. 1,209 are in stock at JLCPCB (part C5641051). 2 open-source boards in 2 repositories on GitHub use it.
Symbol
The library has no symbol for this part yet.
Footprint
Parameters
9- Actuator Style
- Round Button
- Circuit
- SPST-NO
- Contact Current
- 50mA
- Mounting Type
- Surface Mount,Vertical
- Operating Force
- 2.6N
- Operating Temperature
- -40℃~+85℃
- Switch Height
- 4.3mm
- Termination Style
- Gull Wing
- Voltage Rating
- 24V
Order codes
1- FSM2JSMAATRLCSC C5641051
Open-source boards using it
All 2- 2 layers85 × 85 mm

- 2 layers496.5 × 215.3 mm

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<iframe src="https://pcbkit.io/embed/parts/te/FSM2JSMAATR" title="FSM2JSMAATR in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/te/FSM2JSMAATR.jpg" alt="FSM2JSMAATR" width="1200" height="900">[](https://pcbkit.io/parts/te/FSM2JSMAATR)Questions
Is there a KiCad symbol and footprint for the FSM2JSMAATR?
Yes. the footprint EasyEDA_Cloud:SW-SMD_4P-L6.0-W6.0-P4.50-LS10.0-1, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the FSM2JSMAATR?
SMD-4P,6x6mm, with 4 pins. Its footprint is drawn on this page.
Where is the FSM2JSMAATR datasheet?
TE Connectivity publishes it: the Datasheet link on this page opens it.
Where can I order the FSM2JSMAATR?
JLCPCB lists it as part C5641051, with 1,209 in stock; the sellers' links on this page open their listings.
What can replace the FSM2JSMAATR?
Parts like it in the library: the FSM2JSMAATR-CUT-TAPE by TE Connectivity. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the FSM2JSMAATR?
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.