Where can I buy MR5000MP2?

MR5000MP2 is available from Digi-Key, Digi-Key, Hotenda. See pricing comparison above.

MR5000MP2 onsemi | Optoelectronics | DigiKey

Brand name, Manufacturer name, Manufacturer, Attribute01	onsemi
Attribute00	Optoelectronics
Attribute02, Attribute06, Attribute10	-
Attribute03	Bulk
Attribute04	Obsolete
Attribute05	Red
Attribute07	Single
Attribute08	3mA
Attribute09	6mcd
Attribute11	Diffused, Tinted
Attribute12	Round with Domed Top
Attribute13	2.03mm Dia
Attribute14	5V
Attribute15	Through Hole
Attribute16	MR50
AttributeKey00	Category
AttributeKey01	Mfr
AttributeKey02	Series
AttributeKey03	Package
AttributeKey04	Part Status
AttributeKey05	Color
AttributeKey06	Wavelength - Peak
AttributeKey07	Configuration
AttributeKey08	Current
AttributeKey09	Millicandela Rating
AttributeKey10	Viewing Angle
AttributeKey11	Lens Type
AttributeKey12	Lens Style
AttributeKey13	Lens Size
AttributeKey14	Voltage Rating
AttributeKey15	Mounting Type
AttributeKey16	Base Product Number
Extra Product Name	MR5000MP2 onsemi \| Optoelectronics \| DigiKey
atoms, moq, multiple	1
extraShipping, qtyInStock	0
MPN	MR5000MP2
SKU	402285

Seller	SKU	MOQ	Multiple
Digi-Key	402285	1	1
Digi-Key	MR5000MP2-ND	1	500
Hotenda	H2950386	1	1