AUM & AUMP-25A MICROWAVE ATTENUATORS 0.5 to 12 GHz / 0 to 30 dB / Ferrite / Excellent Temperature Stability / MIL-E-5400 Class 3 / SMA PRINCIPAL SPECIFICATIONS Model Number Mechanical Configuration AUM-25A AUMP-25A AUMP-25AKX AUMP-25ATX GENERAL SPECIFICATIONS Weight oz. (g) Standard Model Panel Mount Version Panel Mount w/ Knob Panel Mount w/ TC Dial 2.5 (70) 3.8 (106) 4 (112) 4 (112) General Notes: 1. The AUM/AUMP-25A series has been designed for wideband ECM systems and other microwave applications in the 0.5 to 12 GHz frequency band where precise attenuation must be maintained over a wide variety of military and laboratory environments. Applications include signal and LO power control, automatic level control and impedance matching. 2. The AUM/AUMP-25A series of attenuators use ferrite absorption of microwave energy for long term stability and high reliability. They meet applicable paragraphs of MIL-A-24215 and can be supplied screened to meet specific military and commercial high reliability applications. Attenuation Range: 0.5 - 1 GHz: 1 - 2 GHz: 2 - 4 GHz: 4 - 8 GHz: 8 - 12 GHz: Insertion Loss: 0.5 - 8 GHz: 8 - 12 GHz: VSWR: 0.5 - 8 GHz: 8 - 12 GHz: Impedance: CW Power: Operating Temperature: Attenuation in dB vs. Frequency 10 dB min. 20 dB min. 30 dB min. 40 dB min. 30 dB min. 0.5 dB max. 0.7 dB max. 1.5:1 max. 2.0:1 max. 50 Ω nom. 2 Watts max -- 55° to +85°C VSWR vs. Frequency Insertion Loss in dB vs. Frequency Typical Performance 30Apr96 For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531 AUM & AUMP-25A MICROWAVE ATTENUATORS 0.5 to 12 GHz / 0 to 30 dB / Ferrite / Excellent Temperature Stability / MIL-E-5400 Class 3 / SMA AUM-25A NOTES: 1. Tolerance on 3 place decimals ± .020(.51) except as noted. 2. Dimensions in inches over millimeters. 3. Counterclockwise shaft rotation increases attenuation. AUMP-25A NOTES: 05Mar96 1. Tolerance on 3 place decimals ± .020(.51) except as noted. 2. Dimensions in inches over millimeters. 3. Counter clockwise shaft rotation increases attenuation. 4. Shaft lock mtg. nut, shaft locking nut, flat washer and internal tooth lockwasher are supplied by MERRIMAC. 5. Call Merrimac for panel mount installation instructions. ForfurtherinformationcontactM ERRIM AC /41 Fairfield Pl.,W estCaldw ell,NJ,07006 / 973-575-1300 /FAX 973 575-0531 AUM & AUMP-25A MICROWAVE ATTENUATORS 0.5 to 12 GHz / 0 to 30 dB / Ferrite / Excellent Temperature Stability / MIL-E-5400 Class 3 / SMA AUMP-25AKX NOTES: 1. Tolerance on 3 place decimals ±.020(.51) except as noted. 2. Dimensions in inches over millimeters. 3. Knob lock and control knob are supplied by MERRIMAC. 4. Counter clockwise control knob rotation increases attenuation. 5. Call Merrimac for panel mount installation instructions. AUMP-25ATX NOTES: 1. Tolerance on 3 place decimals ±.020(.51) except as noted. 2. Dimensions in inches over millimeters. 3. Turns counting dial, mtg. nut, anti-rotation washer are supplied by MERRIMAC. 4. Counter clockwise dial rotation increases attenuation. 5. Call Merrimac for panel mount installation instructions. 05Mar96 For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531