Overview
The BAS521-HF is a switching Diode made by Comchip in a SOD-523 package with 2 pins.
PCBKit's library has its KiCad symbol (Device:D, from KiCad's library) and its footprint (Diode_SMD:D_SOD-523, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C20185402).
Symbol
Footprint
Parameters
5- Current - Rectified
- 250mA
- Pd - Power Dissipation
- 500mW
- Reverse Leakage Current (Ir)
- 150nA@250V
- Voltage - DC Reverse(Vr)
- 300V
- Voltage - Forward(Vf@If)
- 1.1V@100mA
Order codes
1- BAS521-HFLCSC C20185402
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
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<iframe src="https://pcbkit.io/embed/parts/comchip/BAS521-HF" title="BAS521-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/BAS521-HF.jpg" alt="BAS521-HF" width="1200" height="900">[](https://pcbkit.io/parts/comchip/BAS521-HF)Questions
Is there a KiCad symbol and footprint for the BAS521-HF?
Yes. The symbol is Device:D and the footprint Diode_SMD:D_SOD-523, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the BAS521-HF?
SOD-523, with 2 pins. Its footprint is drawn on this page.
Where is the BAS521-HF datasheet?
Comchip publishes it: the Datasheet link on this page opens it.
Where can I order the BAS521-HF?
JLCPCB lists it as part C20185402, with 0 in stock; the sellers' links on this page open their listings.
What can replace the BAS521-HF?
Parts like it in the library: the BAS521 by Nexperia, the BAS521-JSM by JSMSEMI, the BAS521,115-JSM by JSMSEMI and the BAS521 by LGE. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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