MDA2 vs MDA-2-1/2 vs MDA 2-1/2-R

PartNumber	MDA2	MDA-2-1/2	MDA 2-1/2-R
Description		TIME DELAY BLOW ELECTRIC FUSE, 2.25A, 250VAC, 200A (IR), INLINE/HOLDER (Also Known As: BK/MDA-2-1/2)	Fuse Miniature 2.5A 250V Slow Blow 2-Pin Cartridge Holder - Bulk (Alt: MDA-2-1-2-R)