The H05Z-1000J99-00C36-X from Barry Industries is a Fixed Attenuator with Frequency DC to 4000 MHz, Attenuation Input Return Loss: 17 dB, Output Return Loss: 17 dB, Mounting Surface temperature: 100 oC, Dimension(A): 0.230", Dimension(B): 0.350", Dimension(C): 0.040", Dimension(D): 0.040", Dimension(E): 0.370", Power 150 W. Tags: Leaded, Surface Mount. More details for H05Z-1000J99-00C36-X can be seen below.