Microsemi 1N5551US
Microsemi 1N5553US
Microsemi 1N5554US
Vishay CCF55562KFKE36
Vishay CCF555K36FKE36
Vishay CCF5559K0FKE36
Honeywell S&C BZ-2RDS725551-A2
Honeywell S&C BZ-2RS5551-A2
Osram Opto Semiconductors SFH 4555
Amphenol C146 21R025 550 2