
KiCAD Board
XasWorks/dragon-home
A rework of our old SmartHome project, this time done cleanly and neatly~

RECOM Power
-40℃~+85℃ 1 100mVp-p 12.5mm 13.5mm 3.3V 4mm 500mA 5V~36V 5mA 650kHz 84% Short Circuit Protection、Over Current Protection、Automatic fault recovery ±5% SMD-4P,13.5x12.5mm DC-DC Power Modules ROHS
The ROF-78E3.3-0.5SMD-R is a DC DC Power Module made by RECOM Power in a SMD-4P,13.5x12.5mm package with 4 pins. -40℃~+85℃ 1 100mVp-p 12.5mm 13.5mm 3.3V 4mm 500mA 5V~36V 5mA 650kHz 84% Short Circuit Protection、Over Current Protection、Automatic fault recovery ±5% SMD-4P,13.5x12.5mm DC-DC Power Modules ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:ROF-78E12-0.5SMD-R, from EasyEDA) and its footprint (EasyEDA_Cloud:PWRM-SMD_ROF-78E3.3-0.5SMD-R, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C6277112). 2 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | +Vin | Unspecified |
| 2 | GND | Unspecified |
| 3 | +Vout | Unspecified |
| 4 | CTRL | Unspecified |

XasWorks/dragon-home
A rework of our old SmartHome project, this time done cleanly and neatly~

<iframe src="https://pcbkit.io/embed/parts/recom/ROF-78E3.3-0.5SMD-R" title="ROF-78E3.3-0.5SMD-R in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/recom/ROF-78E3.3-0.5SMD-R.jpg" alt="ROF-78E3.3-0.5SMD-R" width="1200" height="900">[](https://pcbkit.io/parts/recom/ROF-78E3.3-0.5SMD-R)Yes. The symbol is EasyEDA_Cloud:ROF-78E12-0.5SMD-R and the footprint EasyEDA_Cloud:PWRM-SMD_ROF-78E3.3-0.5SMD-R, both drawn on this page. PCBKit places them on a board for you when you design with it.
SMD-4P,13.5x12.5mm, with 4 pins. Its footprint is drawn on this page.
JLCPCB lists it as part C6277112, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the R-78E3.3-0.5 by YLPTEC, the K7803-500R3 by YLPTEC, the R-78E3.3-1.0 by YLPTEC and the K7803-1000 by EVISUN. Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.