CHF3020CBF500L Datasheet, PDF (1/1 Pages) Bourns Electronic Solutions – Power RF Terminations / Resistors

*RoHS ^COMPLIANT
Features
■ DC to 2 GHz
■ Flanged model
■ Low VSWR
Applications
■ High power RF transmission
CHF3020CBF Series Power RF Terminations / Resistors
General Specifications
Substrate ......................................... Beo
Resistive Film ........................ Thick Film
Tab..................................................... Ag
Cover Substrate ...........................AL203
Mounting Flange......... Cu plated with Ni
Resistance
Termination.................... 50 ohms only
Resistor ...See Resistance Value Table
Tolerance ....................................... ±5 %
Packaging..........................100 pcs./box
Absolute Ratings
Power ............... See Rated Power Table
Frequency..................................2.0 GHz
VSWR ............................. 1.30 Maximum
Capacitance .................................0.8 pF
Resistance Value Table
R Value (Ohms)
50
100
200
250
300
Code
500
101
201
251
301
Rated Power
Version
C
D
Power (W)
10
25
How to Order
CHF 3020 C B F 500 L
Model
Size
Version
C = 10 W
D = 25 W
Substrate
Mount
F = Flange
Value (see Resistance Value Table)
Function
L = Termination (50 ohms only)
R = Resistor
Characteristic Curve
100
80
60
40
20
0
-55
Product Dimensions
1.0
(0.039)
6.5
(0.256)
6.35
(0.250)
0
100
150
Heat Sink Temperature (°C)
5.08
(0.200)
MAX.
3.7
(0.146)
2.57
(0.101)
“L” TERMINATION
1 TAB
(Available only in 50 ohm)
2.54
(0.100)
7.62
(0.300)
1.0
(0.039)
2.54
(0.100)
3.0
(0.118)
DIA.
DIMENSIONS = ^MILLIMETERS
(INCHES)
6.5
(0.256)
5.08
(0.200)
2.54
(0.100)
1.57
(0.062)
MAX.
3.7
(0.146)
2.57
(0.101)
0.1
(0.004)
2.54
(0.100)
6.35
(0.250)
“R” RESISTOR
2 TABS
7.62
(0.300)
2.54
(0.100)
3.0
(0.118)
DIA.
2.54
(0.100)
1.57
(0.062)
0.1
(0.004)
Mounting High Power Devices
The mounting surface must be flat to less
than 0.0254 mm (0.001 ”) 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.
Termination/Resistor Tabs (1 for Termination, 2 for Resistors)
Heat Sink/Ground Plane Flange
Circuit Board
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 flange does not exceed 110 ˚C when
running at 100 % of load. If the temperature increases then derate the power.
REV. 09/09
*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