This part is a kind of semiconductor called VCR-32D431K.
Function of this product has METAL OXIDE VARISTORS.
Manufacturers : HITANO
Image and pinout :
Some of the text within the PDF file :
METAL OXIDE VARISTORS Transient voltage surge suppressors ● 32D series Model Number 32mm VCR-32D201K VCR-32D241K VCR-32D271K VCR-32D331K VCR-32D361K VCR-32D391K VCR-32D431K VCR-32D471K VCR-32D511K VCR-32D621K VCR-32D681K VCR-32D751K VCR-32D781K VCR-32D821K VCR-32D911K VCR-32D951K VCR-32D102K VCR-32D112K VCR-32D122K VCR-32D142K VCR-32D162K Maximum Allowable Voltage AC (V) DC (V) Varistor Voltage V 1m (V) Clamping Voltage (MAX.) VC (V) IP (A) Maximum Peak Current (8/20µs) 1 time 2 time (A) Maximum Energy (JOULE) 10/1000 µs Typical Capacitance (Reference) @1KHz (pf) 130 150 175 210 230 250 275 300 320 385 420 460 485 510 550 575 625 680 750 880 1000 170 200 225 275 300 320 350 385 415 505 560 615 640 670 745 765 825 895 990 1140 1280 200(185-225) 240(216-264) 270(243-297) 330(297 [ ... ]