RoHS Compliant Model A40B50X1A Chip Termination 40 Watts, 50Ω General Specifications Resistive Element Substrate Terminals Thick film Beryllium oxide ceramic Thick film Silver Electrical Specifications Resistance Range: Frequency Range: Power: Features: • DC – 3.0 GHz • 40 Watts • BeO Ceramic VSWR: 50 ohms, ± 2% DC – 3.0 GHz 40 Watts 1.25:1 DC – 2.5 GHz 1.43:1 @ 3.0 GHz Note: Tolerance is ±0.010”, unless otherwise specified. Designed to meet of exceed applicable portions of MIL-E-5400. Operating temperature is -55ºC to 150ºC (see chart for derating temperatures). All dimensions in inches. Specifications subject to change with out notice. • Non-Nichrome Resistive Element • Low VSWR • 100% Tested • RoHS Compliant Outline Drawing A40B50X1A (097) Rev C 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 A40B50X1A Typical Performance: Power De-rating: Mounting Footprint and Procedure: .025 MIN. (2 PLACES) 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 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 ** A40B50X1A (097) Rev C USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 544-2414 +44 2392-232392 Available on Tape and Reel For Pick and Place Manufacturing.