This part is a kind of semiconductor called B39421-B3552.

Function of this product has SAW Components / Low Loss Filter.

Manufacturers : EPCOS

Image and pinout :

Some of the text within the PDF file :

SAW Components Data Sheet B3552 SAW Components Low-loss Filter Data Sheet B3552 418,00 MHz Ceramic package QCC8C Features s RF low-loss filter for remote control receivers s Package for Surface Mounted Technology (SMT) Terminals s Ni, gold plated typ. dimensions in mm, approx. weight 0,1 g Pin configuration 1 2 5 6 4,8 3,7 Input Ground Input Output Output Ground Case - Ground to be grounded Type B3552 Ordering code B39421-B3552-U310 Marking and package according to C61157-A7-A56 Packing according to F61074-V8070-Z000 Electrostactic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Source power TA Tstg VDC PS –45/+120 –45/+120 0 10 ˚C ˚C V dBm source impedance 50 Ω 2 May 09, 2001 SAW Components Low-loss Filter [ ... ]

B39421-B3552 PDF Datasheet Download