Overview
The SMP4118A is a JFET made by InterFET in a SOT-23-3 package with 3 pins.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:IFN160BST3TR, from EasyEDA) and its footprint (Package_TO_SOT_SMD:SOT-23-3, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C20515100).
Symbol
Footprint
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | S/D | Unspecified |
| 2 | S/D | Unspecified |
| 3 | G | Unspecified |
Parts like it
8
MMBFJ112
SOT-23-3L-55℃~+150℃ 1 N-channel 1V 350mW 35V 50Ω 5mA N-Channel SOT-23-3L JFETs ROHSonsemiJFETsMMBFJ201
SOT-23-3L-55℃~+150℃ 1mA 300mV 350mW 40V N-Channel SOT-23-3L JFETs ROHSonsemiJFETsMMBFJ110
SOT-23-31 N-channel 10mA 18Ω 25V 460mW 4V N-Channel SOT-23-3 JFETs ROHSonsemiJFETsIF1320ST3TR
SOT-23-3JFETsInterFETIF140AST3
SOT-23-3JFETsInterFETIF140ST3
SOT-23-3JFETsInterFETIF140ST3TR
SOT-23-3JFETsInterFETIF170AST3
SOT-23-3JFETsInterFET
Questions
Is there a KiCad symbol and footprint for the SMP4118A?
Yes. The symbol is EasyEDA_Cloud:IFN160BST3TR and the footprint Package_TO_SOT_SMD:SOT-23-3, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SMP4118A?
SOT-23-3, with 3 pins. Its footprint is drawn on this page.
Where is the SMP4118A datasheet?
InterFET publishes it: the Datasheet link on this page opens it.
Where can I order the SMP4118A?
JLCPCB lists it as part C20515100, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SMP4118A?
Parts like it in the library: the MMBFJ112 by onsemi, the MMBFJ201 by onsemi, the MMBFJ110 by onsemi and the IF1320ST3TR by InterFET. Check their datasheets: a part that fits the footprint may still differ in its ratings.