This part is a kind of semiconductor called TVR14271-V.
Function of this product has Metal Oxide Varistor.
Manufacturers : TKS
Image and pinout :
Some of the text within the PDF file :
Metal Oxide Varistor：TVR-V Series Disc Type Varistor for Surge Protection (Medium Surge Series) Features 1. Ro HS compliant 2. Halogen-free series are available 3. Body size: Ф10 and Ф14 mm 4. Wide operating voltage range: 130Vac ~ 680Vac 5. Operating temperature range: -40°C ~ +85°C Storage temperature range：-40°C ~ +125°C 6. Agency recognition: UL 1449 3rd/cUL/VDE/CQC 7. Meet IEC 60950-1:2013 Annex Q requirement Recommended Applications 1. 2. 3. 4. 5. 6. 7. 8. Power supply Home appliance Industrial equipment Telecommunication or telephone system Smart meter PLC (Power line communication) Lighting products Photovoltaic industry Note: V of the marking stands for TVR-V series Part Number Code T 12 V R 1424 1 89 K S 10 11 12 13 14 15 V 16 34567 Product Type TVR THI [ ... ]