Found 6 alternatives for PDB-C103-I by Advanced Photonix. Optical Sensors Photodiodes — TO-206AA, TO-18-3 Metal Can.
SENSOR PHOTODIODE 1550NM TO206AA
INGAAS PHOTODIODE 860X860UM 900-
SI APD AVALANCHE PHOTODIODE 1000
INGAAS PHOTODIODE 300UM 900-170
SI APD AVALANCHE PHOTODIODE 200U
SI APD AVALANCHE PHOTODIODE 500U