Found 6 alternatives for PR33MF51YSLF by SHARP/Socle Technology. Solid State Relays — 8-DIP (0.300", 7.62mm), 7 Leads.
SSR RELAY SPST-NO 900MA 0-240V
SSR RELAY SPST-NO 1.2A 0-600V
SSR RELAY SPST-NO 300MA 0-600V
SSR RELAY SPST-NO 900MA 0-600V
SSR RELAY SPST-NO 300MA 0-600V
SSR RELAY SPST-NO 600MA 0-600V