

Overview
The BSS138-HF is a MOSFET made by Comchip in a SOT-23 package with 5 pins.
PCBKit's library has its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C20185415). 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)
- 200mA
- Drain to Source Voltage
- 50V
- Gate Threshold Voltage (Vgs(th))
- 1.6V
- Input Capacitance(Ciss)
- 50pF
- Output Capacitance(Coss)
- 25pF
- Pd - Power Dissipation
- 300mW
- RDS(on)
- 3.5Ω@10V
- Reverse Transfer Capacitance (Crss@Vds)
- 8pF
- Type
- N-Channel
Order codes
1- BSS138-HFLCSC C20185415
Open-source boards using it
All 1- 2 layers149.9 × 91.4 mm

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<iframe src="https://pcbkit.io/embed/parts/comchip/BSS138-HF" title="BSS138-HF in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/comchip/BSS138-HF.jpg" alt="BSS138-HF" width="1200" height="900">[](https://pcbkit.io/parts/comchip/BSS138-HF)Questions
Is there a KiCad symbol and footprint for the BSS138-HF?
Yes. the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the BSS138-HF?
SOT-23, with 5 pins. Its footprint is drawn on this page.
Where is the BSS138-HF datasheet?
Comchip publishes it: the Datasheet link on this page opens it.
Where can I order the BSS138-HF?
JLCPCB lists it as part C20185415, with 0 in stock; the sellers' links on this page open their listings.
What can replace the BSS138-HF?
Parts like it in the library: the 2N7002K by MDD, the 2N7002K by hongjiacheng, the BSS138 by Diodes Incorporated and the BSS138 by hongjiacheng. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the BSS138-HF?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
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