

Overview
The BSH121 is a MOSFET made by NXP Semiconductors with 5 pins. 1.3V 10pF 1nC@8V 300mA 30pF 40pF 55V 700mW N-Channel - MOSFETs ROHS.
PCBKit's library has its footprint (EasyEDA_Cloud:SOT-323-3_L2.0-W1.3-P1.30-LS2.1-BR, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C20233854). 1 open-source board in 1 repository on GitHub use it.
Symbol
The library has no symbol for this part yet.
Footprint
Parameters
9- Current - Continuous Drain(Id)
- 300mA
- Drain to Source Voltage
- 55V
- Gate Charge(Qg)
- 1nC@8V
- Gate Threshold Voltage (Vgs(th))
- 1.3V
- Input Capacitance(Ciss)
- 40pF
- Output Capacitance(Coss)
- 30pF
- Pd - Power Dissipation
- 700mW
- Reverse Transfer Capacitance (Crss@Vds)
- 10pF
- Type
- N-Channel
Order codes
1- BSH121,135LCSC C20233854
Open-source boards using it
All 1- 4 layers100 × 50 mm

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<iframe src="https://pcbkit.io/embed/parts/nxp/BSH121" title="BSH121 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/nxp/BSH121.jpg" alt="BSH121" width="1200" height="900">[](https://pcbkit.io/parts/nxp/BSH121)Questions
Is there a KiCad symbol and footprint for the BSH121?
Yes. the footprint EasyEDA_Cloud:SOT-323-3_L2.0-W1.3-P1.30-LS2.1-BR, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where is the BSH121 datasheet?
NXP Semiconductors publishes it: the Datasheet link on this page opens it.
Where can I order the BSH121?
JLCPCB lists it as part C20233854, with 0 in stock; the sellers' links on this page open their listings.
What can replace the BSH121?
Parts like it in the library: the MMBF1374T1 by onsemi and the 2SK1580(0)-T1-AT by Renesas Electronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the BSH121?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.