This datasheet PDF includes multiple part numbers: 28FLZ-SM1-TB, 07FLZSM1TB. Please refer to the document for exact specifications by model.
28FLZ-SM1-TB Product details
Features
This extremely small 0.5mm (.020") pitch connector with a height of only 2.0mm (.079") above the PCB surface allows interconnection in extremely small spaces and is an example of JST's leading edge technology.
Zero insertion force mechanism
A ZIF mechanism increases wear.