Found 4 alternatives for PDV-V404-46 by Advanced Photonix. Optical Sensors Photodiodes — TO-46-2 Lens Top Metal Can.
INGAAS, 0.25MM, TO-46
SENSOR PHOTODIODE 2600NM TO46-3
INGAAS, 0.10MM, TO-46
INGAAS, 0.06MM, TO-46