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