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| PL IA NT Features DC to 1 GHz Flanged model VSWR of 1.06 @ 800 MHz 1000 watts @ 110 C case temperature Applications Broadcast transmitters for television, radio, *R oH S CO M radar CHF190104KxBF Series 1 kW Stripline Termination General Specifications Substrate .........................................BeO Resistive Film ........................ Thick Film Tab .......................................... Cu Be/Ag Cover Substrate ...........................AL203 Mounting Flange......... Cu plated with Ni Resistance ................................ 50 ohms Tolerance ....................................... 5 % Packaging............................20 pcs./tray Operating Temperature ............................... -55 C to +220 C Absolute Ratings Power .........................................1000 W Frequency..................................1.0 GHz VSWR ..........1.06 maximum @ 800 MHz 1.25 maximum at 1 GHz How To Order Characteristic Curve 100 % of Rated Power 80 60 40 20 0 -55 0 110 Case Temperature (C) 220 CHF 190104 K B F 500 L Model Size Tab Length (See Product Dimensions) K (Standard) KE (Special Tab Dimensions) Substrate Mount F = Flange Value 500 = 50 Ohms Function L = Termination Product Dimensions 48.2 (1.898) 39.4 (1.551) 25.4 (1.00) 9.1 (0.358) 6.0 (0.236) 6.85 (0.270) 12.7 (0.500) 26.4 (1.039) 4.2 (0.165) DIA. 4 PLCS. DIMENSIONS = MILLIMETERS (INCHES) 0.1 (0.004) 7.9 (0.31) Asia-Pacific: Tel: +886-2 2562-4117 Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 Fax: +1-951 781-5700 www.bourns.com 7.0 1.0 (0.28 0.04) 10.0 1.0 TAB LENGTH KE: (0.39 0.04) TAB LENGTH K: "L" TERMINATION 1 TAB *RoHS Directive 2002/95/EC Jan 27 2003 including Annex. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications CHF190104KxBF Series 1 kW Stripline Termination Typical Performance -10.00 Return Loss (dB) -20.00 -30.00 -40.00 -50.00 0.05 1.00 F (GHz) 0.470 GHz -38.48 dB 0.800 GHz -31.83 dB 1.000 GHz -19.53 dB Mounting High Power Devices The mounting surface must be flat to less than 0.0254 mm (0.001 inch) and devoid of scratches or burrs. The underside of the flange should be brushed with thermal grease prior to being fastened to the heat sink with mounting screws. The thermal grease will fill any air gaps and help to keep a good thermal contact. Pre-tin the tab prior to installation. Position the tab over the circuit and solder in place. Heat Sink/Ground Plane Flange Termination/Resistor Tabs (1 for Termination, 2 for Resistors) Circuit Board Ensure that the temperature on the surface of the flange does not exceed 110 C when running at 100 % of load. If the temperature increases then derate the power. 10/09 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications |
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