The A51-MH029 from Akon Inc is a Fixed Attenuator with Frequency 18 to 40 GHz, Attenuation 10 dB, Attenuation Accuracy ±0.3 dB(Deviation), Operating Temperature -54 to 85 Degree C. Tags: Drop-in, Module with Connectors. More details for A51-MH029 can be seen below.