This part is a kind of semiconductor called NDR433.92.

Function of this product has SAW Resonator.

Manufacturers : Winnsky

Image and pinout :

Some of the text within the PDF file :

SAW Resonator Features  1-port Resonator  Provides reliable, fundamental mode, quartz frequency stabilization i.e. in transmitters or local oscillators  In a low-profile metal F-11 case  Lead-free production and RoHS compliance Package Dimensions Pin 1, 4 2/3 Dimensions A B C D E F NDR433.92 Configuration Input / Output Case Ground Data (unit: mm) 11.0±0.3 4.5±0.3 3.2±0.3 0.45±0.1 5.0±0.5 2.54±0.2 Marking http://www.net/ NDR433.92 Ink OR Laser Marking *ink Color: Black or Blue Top View: "ND”: Manufacturer’s mark “R”: SAW resonator “433.92”: center Frequency Equivalent LC Model Maximum Ratings Rating CW RF power dissipation DC voltage between any terminals Operating temperature range Storage temperature range WINNSKY INTERNATIONAL (H.K.) LIM [ ... ]

NDR433.92 PDF Datasheet Download