This BEC is an switching power supply and in series an linear LDO (LM1764A) to remove the ripple. Due to the component selection, this BEC get's only warm during operation (LDO only 0.35V dropout voltage).
Input and output is protected by Panasonic FC / FM capacitors.
Input 4-14S LiPo / max. 60V.
Output 5.3V / 3A -> +/- 0.05V.
20cm output cable with Molex / 6p / Clik-Mate 2.0mm. (To connect to Pixhawk 2 / Battery 2)
2x 20cm spare wires with Clik-Mate 2.0mm crimp, for Battery 2 current and voltage sence.
54mm x 21mm x 14mm / 17g with cables and shrinking tube.