Bourns CHF3020DBF500L Power rf terminations / resistor Datasheet

NT
IA
PL
M
Features
Applications
■ DC to 2 GHz
■ High power RF transmission
oH
S
CO
■ Flanged model
*R
■ Low VSWR
CHF3020CBF Series Power RF Terminations / Resistors
Characteristic Curve
100
% of Rated Power
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
80
60
40
20
0
-55
Absolute Ratings
Power ............... See Rated Power Table
Frequency..................................2.0 GHz
VSWR ............................. 1.30 Maximum
Capacitance .................................0.8 pF
R Value (Ohms)
50
100
200
250
300
Code
500
101
201
251
301
MAX.
6.5
(0.256)
3.7
(0.146)
2.57
(0.101)
5.08
(0.200)
2.54
(0.100)
“L” TERMINATION
1 TAB
(Available only in 50 ohm)
7.62
(0.300)
6.35
(0.250)
2.54
(0.100)
Power (W)
10
25
150
Product Dimensions
Rated Power
Version
C
D
100
Heat Sink Temperature (°C)
1.0
(0.039)
Resistance Value Table
0
3.0
(0.118)
DIA.
DIMENSIONS = MILLIMETERS
(INCHES)
1.0
(0.039)
1.57
(0.062)
2.54
(0.100)
6.5
(0.256)
MAX.
3.7
(0.146)
2.57
(0.101)
5.08
(0.200)
0.1
(0.004)
2.54
(0.100)
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
“R” RESISTOR
2 TABS
6.35
(0.250)
2.54
(0.100)
3.0
(0.118)
DIA.
2.54
(0.100)
7.62
(0.300)
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)
Circuit Board
Heat Sink/Ground Plane
Flange
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
Similar pages