Where can I buy ADNS-5700-H4NB?

ADNS-5700-H4NB is available from Digi-Key, Hotenda, Digi-Key. See pricing comparison above.

ADNS-5700-H4NB Broadcom Limited | Sensors, Transducers | DigiKey

Brand name, Manufacturer name, Manufacturer, Attribute01	Broadcom Limited
Attribute00	Sensors, Transducers
Attribute02	-
Attribute03	Tube
Attribute04	Obsolete
Attribute05	Through Hole
Attribute06	18-DIP Module
Attribute07	18-DIP
AttributeKey00	Category
AttributeKey01	Mfr
AttributeKey02	Series
AttributeKey03	Package
AttributeKey04	Part Status
AttributeKey05	Mounting Type
AttributeKey06	Package / Case
AttributeKey07	Supplier Device Package
Extra Product Name	ADNS-5700-H4NB Broadcom Limited \| Sensors, Transducers \| DigiKey
atoms, moq, multiple	1
MPN	ADNS-5700-H4NB
qtyInStock	0
SKU	ADNS-5700-H4NB-ND

Seller	SKU	MOQ	Multiple
Digi-Key	ADNS-5700-H4NB-ND	1	1
Hotenda	H3917898	1	1
Digi-Key	2210426	1	1