Low ESR Electrolytic Cap, Reforming electrolytic capacitors, Aluminum oxide,

 EEE-FK Series 50 V 220 uF Ø 10 x 10.2 mm 105 °C Low ESR SMT Electrolytic

https://www.futureelectronics.com/p/passives--capacitors--aluminum-electrolytic-capacitors/eee-fk1h221gp-panasonic-7113777