This is a high quality premium filter from Sawtek (TriQuint). Center frequency is 44MHz, insertion loss is 22 dB max, and bandwidth is 6.000 MHz. Built in LiNbO3 substrate material. Temperature coefficient is -72ppm/DegC. 6 pin package (4 active pins) with gold plated leads and base. Size: 1.07" x 0.5" x 0.21". Leads are 0.18" long.
Datasheet Available:Sawtek 855079