Overview
The FST3125MX-FS is a signal Switches, Multiplexers, Decoder made by onsemi in a SOIC-14 package with 14 pins. -40℃~+85℃ 0.25ns@4.5V-5.5V,50pF 3uA 4V~5.5V Output enable high-impedance、Tri-state output SOIC-14 Signal Switches, Multiplexers, Decoders ROHS.
PCBKit's library has its footprint (Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3234139).
Symbol
The library has no symbol for this part yet.
Footprint
Order codes
1- FST3125MX-FSLCSC C3234139
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/onsemi/FST3125MX-FS" title="FST3125MX-FS in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/onsemi/FST3125MX-FS.jpg" alt="FST3125MX-FS" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/FST3125MX-FS)Questions
Is there a KiCad symbol and footprint for the FST3125MX-FS?
Yes. the footprint Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the FST3125MX-FS?
SOIC-14, with 14 pins. Its footprint is drawn on this page.
Where is the FST3125MX-FS datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the FST3125MX-FS?
JLCPCB lists it as part C3234139, with 0 in stock; the sellers' links on this page open their listings.
What can replace the FST3125MX-FS?
Parts like it in the library: the SGM4517YS14G/TR by SG Micro, the FST3125D by onsemi, the SN74CBTLV3126D by Texas Instruments and the TCA9543AD by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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