Model RFP-250-200RM-S RoHS Compliant Flanged Resistors 250 Watts, 200 General Specifications Resistive Element Substrate Cover Mounting flange Leads Features: Thick film Beryllium oxide ceramic Alumina ceramic Copper, nickel plated per QQ-N-290 99% pure silver (.005" thick) Electrical Specifications * BeO Ceramic Resistance Range: Frequency Range; Power: Capacitance * Non-Nichrome Resistive Element 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). * Welded Silver Leads All dimensions in inches. * Low VSWR Specifications subject to change with out notice. * DC - 2.0 GHz * 250 Watts 200 ohms, 5% DC - 2.0 GHz 250 Watts 3.3 pF * 100% Tested * RoHS Compliant Outline Drawing 250-200RM-S (097) Rev B 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 RFP-250-200RM-S RoHS Compliant Typical Performance: Power De-rating: Mounting Footprint and Procedure: SUGGESTED MOUNTING PROCEDURES: 1. .025 MIN. (2 PLACES) 2. 3. BOARD LOWER THAN LEAD. BOARD EVEN WITH LEAD. BOARD LOWER THAN LEAD. BOARD HIGHER THAN LEAD. SUGGESTED STRESS RELIEF METHODS NOT RECOMMENDED APPLICATION SCALE: NONE SCALE: NONE 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 ** 250-200RM-S (097) Rev B USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 544-2414 +44 2392-232392 Available on Tape and Reel For Pick and Place Manufacturing.