This Yellow Ranger figure is released by Funko in their POP! TV x Power Rangers Vinyl Figure series.
Funko POP! is a crossover vinyl figure series by Funko and other famous franchises such as Disney, Pixar, DC Comics, Marvel Comics, Simpsons, South Park, Uglydoll, etc. Each POP! figure is about ~3" to ~5" tall and crafted in a Japanese anime/manga super-deformed style (NOTE: due to the unique design of each character, the actual size of the figures may be smaller or bigger than stated).
The POP! TV x Power Rangers features characters from the entertainment franchise based on the long running Japanese Super Sentai tokusatsu TV series. Usually, a new Rangers series will be aired every year, each with a different theme. Each series revolves around a team of youths recruited and trained by a mentor to morph into the eponymous Power Rangers, able to utilize special powers and pilot immense assault machines, called Zords, to overcome the periodic antagonists. In the original series Mighty Morphin, the wizard Zordon recruits "teenagers with attitude" against Rita Repulsa.