Overview
The IF140ST3 is a JFET made by InterFET in a SOT-23-3 package with 3 pins.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:IF140ST3, 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 C20514637).
Symbol
Footprint
Parameters
6- Drain Current (Idss)
- 15mA
- FET Type
- N-Channel
- Gate-Source Cutoff Voltage (VGS(off))
- 6V
- Number
- 1 N-channel
- Operating Temperature
- -55℃~+125℃
- Pd - Power Dissipation
- 375mW
Order codes
1- IF140ST3LCSC C20514637
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | D | Unspecified |
| 2 | S | Unspecified |
| 3 | G | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/interfet/IF140ST3" title="IF140ST3 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/interfet/IF140ST3.jpg" alt="IF140ST3" width="1200" height="900">[](https://pcbkit.io/parts/interfet/IF140ST3)Questions
Is there a KiCad symbol and footprint for the IF140ST3?
Yes. The symbol is EasyEDA_Cloud:IF140ST3 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 IF140ST3?
SOT-23-3, with 3 pins. Its footprint is drawn on this page.
Where is the IF140ST3 datasheet?
InterFET publishes it: the Datasheet link on this page opens it.
Where can I order the IF140ST3?
JLCPCB lists it as part C20514637, with 0 in stock; the sellers' links on this page open their listings.
What can replace the IF140ST3?
Parts like it in the library: the MMBFJ110 by onsemi, the IF140ST3TR by InterFET, the SMP4391 by InterFET and the SMP4391TR by InterFET. Check their datasheets: a part that fits the footprint may still differ in its ratings.
