
RS485 antenna switch v1.2
EI9SP/Remote-Antenna-Switch
Four to one Remote Antenna Switch, Full duplex RS485
MDDExtended
-55℃~+175℃ 1 Independent 1.1V@1A 1A 200V 30A 5uA@200V LL-41 Diodes - General Purpose ROHS
The SM4003 is a diodes, General Purpose made by MDD in a LL-41 package with 2 pins. -55℃~+175℃ 1 Independent 1.1V@1A 1A 200V 30A 5uA@200V LL-41 Diodes - General Purpose ROHS.
PCBKit's library has its KiCad symbol (Diode:SM4003, from KiCad's library) and its footprint (Diode_SMD:D_MELF, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C56510). 3 open-source boards in 3 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |

EI9SP/Remote-Antenna-Switch
Four to one Remote Antenna Switch, Full duplex RS485

Hirusha785/400W-Class-D-Audio-Amplifier
🎵 400W Class-D Audio Amplifier designed around the IRS2092S high-performance Class-D controller, featuring a ±55V power stage, discrete MOSFET switching section, LC output filter, protection circuitry, and a custom…

Yes. The symbol is Diode:SM4003 and the footprint Diode_SMD:D_MELF, both drawn on this page. PCBKit places them on a board for you when you design with it.
LL-41, with 2 pins. Its footprint is drawn on this page.
MDD publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C56510, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the DL4007 by MDD, the DL4007 by FUXINSEMI, the SM4007 by YFW and the SM4007 by YONGYUTAI. Check their datasheets: a part that fits the footprint may still differ in its ratings.
3 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.