This part is a kind of semiconductor called GMA.

Function of this product has 5 x 20mm Fast-acting Glass Tube Fuses.

Manufacturers : Cooper Bussmann

Image and pinout :

Some of the text within the PDF file :

5 x 20mm Fast-acting Glass Tube Fuses GMA Series Dimensions - mm 5.54mm (±.20) 38.10mm 10 (±.38) .3 (± (± 21.10mm 0m (±.81) 81 5.2mm (+0.1/-0.2) 0.65mm (REF) 38.10mm 0m (±.3 38) Description • Fast-acting, low breaking capacity • Optional axial leads available • 5 x 20mm physical size • Glass tube, silver-plated (63mA-315mA) and nickelplated (500mA-15A) brass endcap construction • Designed to UL/CSA 248-14 Electrical Characteristics Rated Current % of Amp Rating Opening Time 100% None 63mA - 15A 135% 60 minutes maximum 200% 2 minutes maximum • Ratings above 6.3A have a 0.8mm diameter lead • With TR2 packaging code, lead wire length is 19.05mm Agency Information UL Listed, Guide JDYX, File E19180, 63mA-6A UL Recognized, Guide JDYX2, File E19180 [ ... ]

GMA PDF Datasheet Download