This part is a kind of semiconductor called 12G471K.

Function of this product has TNR12G471K.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

G w w a t a D . Ⅲ Metal Oxide w Varistor Ⅲ m o Series .c U 4 t e e h S General Purpose Ⅲ UL 1414 and 1449 Approved Ⅲ CSA 097864 Approved Ⅲ ‫؀‬85؇C Maximum Temperature Actual Size The G series is the standard metal oxide varistor series from UCC/NCC. These MOVs are available in a wide variety of voltages and sizes, which will make them ideal in most applications where a surge protector is needed. The G series is also ideal because of the variety of UL and CSA approvals. The varistors with a 5mm or 7.5mm lead spacing are available with ammo pack taping. Refer to the Mini -Glossary at the end of the metal oxide varistors section for additional technical information and specifications. METAL OXIDE VARISTOR G Ⅲ Radial lead terminals. Ⅲ Operating [ ... ]

12G471K PDF Datasheet Download