Ghetto PoE 5V v0.1
author: piersfinlayson
2 layer board of 0.77 x 0.75 inches (19.5 x 19.0 mm)
Uploaded:
October 25, 2016
Shared:
October 25, 2016
Total Price:
$2.85
Ghetto PoE 5V v0.1
A board designed to take 5v from a micro USB connector and send it down a CAT5/CAT6 cable for breakout and use at the remote end.
The board sends power down all 4 pairs, so the current carrying capacity is maximised, and should be good for around 500mA. Note that voltage drop will be an issue over long cable runs.
The BOM is pretty basic:
An RJ45 port, with LEDs (of which only the right, green, one is used to indicate power). I’ve used the Amphenol RJHS-4081.
Micro USB PCB mount connector. I use cheapos from aliexpress.
A current limiting 0603 resistor for the LED - I’m using a 1.5K to keep power use down.
A 1206 0.5A hold current, 1A trip current resettable fuse. I’m using Littelfuse 1206L050YR.
Ghetto PoE 5V v0.1
A board designed to take 5v from a micro USB connector and send it down a CAT5/CAT6 cable for breakout and use at the remote end.
The board sends power down all 4 pairs, so the current carrying capacity is maximised, and should be good for around 500mA. Note that voltage drop will be an issue over long cable runs.
The BOM is pretty basic:
An RJ45 port, with LEDs (of which only the right, green, one is used to indicate power). I’ve used the Amphenol RJHS-4081.
Micro USB PCB mount connector. I use cheapos from aliexpress.
A current limiting 0603 resistor for the LED - I’m using a 1.5K to keep power use down.
A 1206 0.5A hold current, 1A trip current resettable fuse. I’m using Littelfuse 1206L050YR.
