The HG136SA from Microarray Technologies Corporation is a Fixed Attenuator with Frequency DC to 20 GHz, Attenuation 0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5 dB, Power 27 dBm, Attenuation Accuracy ±0.1 dB, Insertion Loss 0.25 dB. Tags: Chip. More details for HG136SA can be seen below.