Found 4 alternatives for MPTS1206L050 by Meritek. Ptc Resettable Fuses — 1206 (3216 Metric).
PTC RESET FUSE 6V 750MA 1206
PTC RESET FUSE 6V 4.5A 1206
PTC RESET FUSE 24V 300MA 1206
PTC RESET FUSE 6V 5A 1206