Was tricky to get a photo with the markings visible, but as best I can tell the markings read...
H L1 1502
...The scoring down the middle is from where I haphazardly removed the heat-shrink which was around the component
For reference, the components are off an old Motorola power supply (board is marked 1991 manufactured by a company named Astec) which is used for charging GP300 handheld radios. Charger output spec is 14V @ 10A (charges up to 6x radios at once).