
Overview
The FST3126MX is a signal Switches, Multiplexers, Decoder made by onsemi in a SOIC-14 package with 14 pins. -40℃~+85℃ 0.25ns@4.5V,50pF 3uA 4V~5.5V Output enable high-impedance、Tri-state output Single Supply SOIC-14 Signal Switches, Multiplexers, Decoders ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:FST3126M, from EasyEDA) and its footprint (Package_SO:SO-14_3.9x8.65mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3234140).
Symbol
Footprint
Parameters
6- Function
- Output enable high-impedance;Tri-state output
- Operating temperature
- -40℃~+85℃
- Propagation Delay
- 0.25ns@4.5V,50pF
- Quiescent Current
- 3uA
- Voltage - Supply
- 4V~5.5V
- Voltage Supply Source
- Single Supply
Order codes
1- FST3126MXLCSC C3234140
Pinout
14| Pin | Name | Type |
|---|---|---|
| 1 | OE1 | Unspecified |
| 2 | 1A | Unspecified |
| 3 | 1B | Unspecified |
| 4 | OE2 | Unspecified |
| 5 | 2A | Unspecified |
| 6 | 2B | Unspecified |
| 7 | GND | Unspecified |
| 8 | 3B | Unspecified |
| 9 | 3A | Unspecified |
| 10 | OE3 | Unspecified |
| 11 | 4B | Unspecified |
| 12 | 4A | Unspecified |
| 13 | OE4 | Unspecified |
| 14 | VCC | Unspecified |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/onsemi/FST3126MX" title="FST3126MX 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/FST3126MX.jpg" alt="FST3126MX" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/FST3126MX)Questions
Is there a KiCad symbol and footprint for the FST3126MX?
Yes. The symbol is EasyEDA_Cloud:FST3126M and the footprint Package_SO:SO-14_3.9x8.65mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the FST3126MX?
SOIC-14, with 14 pins. Its footprint is drawn on this page.
Where is the FST3126MX datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the FST3126MX?
JLCPCB lists it as part C3234140, with 0 in stock; the sellers' links on this page open their listings.
What can replace the FST3126MX?
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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