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| Model RFP-20N50TPR Aluminum Nitride Terminations Aluminum Nitride Flanged Terminations 20 Watts, 50 General Specifications Resistive Element: Substrate: Cover: Mounting Flange: Lead(s): Thick film Aluminum nitride ceramic Alumina ceramic Copper, nickel plated per QQ-N-290 99.99% pure silver (.005" thk) Features * DC - 4.0 GHz * 20 Watts * Aluminum Nitride (AlN) Ceramic * Welded Silver Leads * Non-Nichrome Resistive Element * Low VSWR * 100% Tested Electrical Specifications Resistance Value: Frequency Range: Power: V.S.W.R.: 50 ohms, 5% DC - 4.0 GHz 20 Watts 1.25:1 Notes: Tolerance is .010, unless otherwise specified. Operating temperature is -55C to +150C (see chart). Designed to meet or exceed applicable portions of MIL-E-5400. All dimensions are in inches. Lead length 0.15" minimum. Specifications subject to change without notice. Outline Drawing .250 .125 .125 .515 .050 .116 DIA. THRU. .062 RFP 20N50 TPR .125 .122 .150 VER. 12/5/01 Sales Desk USA: Voice: (800) 544-2414 Fax: (315) 432-9121 Sales Desk Europe: Voice: (+44) 23 92 232392 Fax: (+44) 23 92 251369 1 Model RFP-20N50TPR % OF RATED POWER Aluminum Nitride Flanged Terminations 2 Typical Performance Power Derating Suggested Mounting Procedures .025 MIN. (2 PLACES) 100 75 50 25 0 25 50 75 100 125 150 BOARD LOWER THAN LEAD. BOARD EVEN WITH LEAD. BOARD LOWER THAN LEAD. BOARD HIGHER THAN LEAD. SUGGESTED STRESS RELIEF METHODS SCALE: NOT RECOMMENDED APPLICATION SCALE: CASE TEMPERATURE -- C 1. Make sure that the devices are mounted on flat surfaces (.001" under the device) to optimize the heat transfer. 2. Drill & tap the heatsink for the appropriate thread size to be used. 3. Coat heatsink with a minimum amount of high quality silicone grease (.001" max. thickness). 4. Position device on mounting surface & secure using socket head screws, flat & split washers. 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). 5. Solder leads in place using an SN63 type solder with a controlled temperature iron (700F). Sales Desk USA: Voice: (800) 544-2414 Fax: (315) 432-9121 Sales Desk Europe: Voice: (+44) 23 92 232392 Fax: (+44) 23 92 251369 |
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