

Overview
The MMBFJ110 is a JFET made by onsemi in a SOT-23-3 package with 3 pins. 1 N-channel 10mA 18Ω 25V 460mW 4V N-Channel SOT-23-3 JFETs ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:MMBFJ110, from EasyEDA) and its footprint (Package_TO_SOT_SMD:SOT-23-3, from KiCad's library), ready for a KiCad board. 389 are in stock at JLCPCB (part C891685). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
9- Configuration
- Standalone
- Drain Current (Idss)
- 10mA
- FET Type
- N-Channel
- Gate-Source Breakdown Voltage (Vgss)
- 25V
- Gate-Source Cutoff Voltage (VGS(off))
- 4V
- Number
- 1 N-channel
- Operating Temperature
- -55℃~+150℃
- Pd - Power Dissipation
- 460mW
- RDS(on)
- 18Ω
Order codes
1- MMBFJ110LCSC C891685
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | D | Unspecified |
| 2 | S | Unspecified |
| 3 | G | Unspecified |
Open-source boards using it
All 1- 4 layers172 × 140.5 mm

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<iframe src="https://pcbkit.io/embed/parts/onsemi/MMBFJ110" title="MMBFJ110 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/MMBFJ110.jpg" alt="MMBFJ110" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/MMBFJ110)Questions
Is there a KiCad symbol and footprint for the MMBFJ110?
Yes. The symbol is EasyEDA_Cloud:MMBFJ110 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 MMBFJ110?
SOT-23-3, with 3 pins. Its footprint is drawn on this page.
Where is the MMBFJ110 datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the MMBFJ110?
JLCPCB lists it as part C891685, with 389 in stock; the sellers' links on this page open their listings.
What can replace the MMBFJ110?
Parts like it in the library: the SMP4391 by InterFET, the SMP4391TR by InterFET, the SMP4392 by InterFET and the SMP4392TR by InterFET. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the MMBFJ110?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.