The DAT-31R5A-SP+ from Mini Circuits is a RF Variable Attenuator with Frequency DC to 4 GHz, Attenuation Range 31.5 dB, Attenuation Step 0.5 dB, Power 0.25 W, P1dB 24 dBm. Tags: IC, Programmable, Digital. More details for DAT-31R5A-SP+ can be seen below.