RoHS Compliant Model 250250-4AA20-1 Surface Mount Attenuator 8 Watts General Specifications Resistive Element Substrate Terminals: Thick film Beryllium oxide ceramic Matte Tin over Nickel Electrical Specifications Attenuation Range: Frequency Range; Power: VSWR Features: * DC -2.5 GHz 20 dB 0.75 dB DC - 2.5 GHz 8 Watts 1.25:1 Note: Tolerance is 0.010", unless otherwise specified. Designed to meet of exceed applicable portions of MIL-E-5400. Operating temperature is -55C to 150C (see chart for derating temperatures). All dimensions in inches. Specifications subject to change with out notice. * 8 Watts * BeO Ceramic * Non-Nichrome Resistive Element * Low VSWR * 100% Tested * RoHS Compliant Outline Drawing C C C B A 250250-4AA20 (097) Rev A Available on Tape and Reel For Pick and Place Manufacturing. USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 544-2414 +44 2392-232392 Model 250250-4AA20-1 Typical Performance: Power De-rating: Mounting Footprint and Procedure: SUGGESTED MOUNTING PROCEDURES: 1. 2. 3. 4. 5. MAKE SURE THAT THE DEVICES ARE MOUNTED ON FLAT SURFACES (.001" UNDER THE DEVICE) TO OPTIMIZE THE HEAT TRANSFER. DRILL & TAP THE HEATSINK FOR THE APPROPRIATE THREAD SIZE TO BE USED. COAT HEATSINK WITH A MINIMUM AMOUNT OF HIGH QUALITY SILICONE GREASE (.001" MAX. THICKNESS). POSITION DEVICE ON MOUNTING SURFACE & SECURE USING SOCKET HEAD SCREWS, FLAT & SPLIT WASHER. TORQUE SCREWS TO THE APPROPRIATE VALUE. MAKE SURE THAT THE DEVICE IS FLAT AGAINST THE HEATSINK. (CARE SHOULD BE TAKEN TO AVOID UPWARD PRESSURE OF THE LEADS TOWARDS THE LID). SOLDER LEADS IN PLACE USING APPROPROATE SOLDER WITH A CONTROLLED TEMPERATURE IRON. ** FOR MORE DETAILS CONTACT FACTORY ** 250250-4AA20 (097) Rev A USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 544-2414 +44 2392-232392 Available on Tape and Reel For Pick and Place Manufacturing.