This part is a kind of semiconductor called ABM12.

Function of this product has ULTRA MINIATURE CERAMIC SMD CRYSTAL.

Manufacturers : Abracon Corporation

Image and pinout :

Some of the text within the PDF file :

ULTRA MINIATURE CERAMIC SMD CRYSTAL ABM12 Preliminary (sample available Q4.2007) Pb RoHS Compliant 1.6 x 1.2 x 0.45 mm | | | | | | | | | | | | | | | FEATURES: • RoHS compliant • Suitable for reflow • Tight stability available • Ceramic package seam welded sealing assures high precision and reliability • Smallest package size in industry APPLICATIONS: • Blue-tooth, Wireless applications • Computers, Modems, Microprocessors • Communication, Test equipment • High density applications • PCMCIA • Portable radios and MP3 players STANDARD SPECIFICATIONS: PARAMETERS ABRACON P/N Frequency Range Operation Mode Operating Temperature Storage Temperature Frequency Tolerance at +25°C Frequency Stability over the Operating Temp. (Ref to +25°C) Equivalent [ ... ]

ABM12 PDF Datasheet Download