CHF190104CBF500L Bourns Inc., CHF190104CBF500L Datasheet - Page 2

• Manufacturer Part Number: CHF190104CBF500L
• Description: TERMINATOR 50 OHM 800W 5% SMD
• Manufacturer: Bourns Inc.
• Series: CHF - RF Powerr

Specifications of CHF190104CBF500L

• Tolerance: ±5%
• Resistance (ohms): 50
• Power (watts): 800W
• Composition: Thick Film
• Coating, Housing Type: Aluminum Oxide
• Mounting Feature: Flanges
• Size / Dimension: 1.898" L x 1.039" W (48.21mm x 26.39mm)
• Height: 0.346" (8.79mm)
• Lead Style: Tab
• Package / Case: Flat Box, Terminator
• Resistance: 50 Ohms
• Power Rating: 800 Watts
• Frequency: 1 GHz
• Operating Temperature Range: - 55 C to + 150 C
• Termination Style: SMD/SMT
• Dimensions: 26.4 mm W x 48.2 mm L x 8.8 mm H
• Frequency Range: 1GHz
• Resistance Tolerance: ± 5%
• No. Of Pins: 2
• Length/height, External: 48.2mm
• External Width: 26.4mm
• External Depth: 8.8mm
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

The mounting surface must be fl at to less than 0.0254 mm (0.001 inch) and devoid of
scratches or burrs. The underside of the fl ange should be brushed with thermal
grease prior to being fastened to the heat sink with mounting screws. The thermal
grease will fi ll 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.
Ensure that the temperature on the surface of the fl ange does not exceed 110 ˚C when
running at 100 % of load. If the temperature increases then derate the power.
Typical Performance
Mounting High Power Devices
CHF190104KxBF Series 1 kW Stripline Termination
-10.00
-20.00
-30.00
-40.00
-50.00
0.05
F (GHz)
Customers should verify actual device performance in their specifi c applications
0.470 GHz -38.48 dB
0.800 GHz -31.83 dB
1.000 GHz -19.53 dB
Termination/Resistor
Heat Sink/Ground Plane
Specifi cations are subject to change without notice.
Tabs (1 for Termination, 2 for Resistors)
Flange
1.00
Circuit Board
10/09