CAT AND CAR SERIERS
.142 D ± .003"
.400 ± .010"
.175 ± .015"
.052 ± .003"
.117 ± .003"
.240 ± .010"
Molded Base Mounted Power Resistors and Terminations
.580 ± .010"
.051 ± .004"
.040" NOM.
.540 ± .040"
.330 ± .010"
.032 ± .004"
.010 ± .002"
.020 ± .002"
.097 ± .010"
.200 ± .010"
.097 ± .010"
MECHANICAL SPECIFICATIONS
Heat Sink
Substrate
Leads
Overcoat
:
:
:
:
•
•
All dimensions in inches.
CAT: Ground obtained thru metal base.
IN
.003
.004
.010
.015
.032
.040
.052
.097
.117
.142
.175
.200
.240
.400
.540
.580
MM
.08
.10
.26
.38
.81
1.02
1.32
2.46
2.97
3.61
4.45
5.08
6.10
10.16
13.72
14.73
Copper, Nickel Plated per QQ-N-290.
CAR-20 & CAT-15: 96% Alumina Ceramic.
CAT-50 & CAR-75: Beryllium Oxide Ceramic.
CAR-20 & CAR-75: 60/40 Solder-Tinned Solid Copper.
CAR-15 & CAT-50: SN60 Plated Phosphur Bronze.
Silicone Based Thermoset Plastic.
ELECTRICAL SPECIFICATIONS
CGI
P/N
CAR-20
CAR-75
CAT-15
CAT-50
*
POWER
20 W
75 W
15 W
50 W
**RES
(
Ω
)
10 - 10K
10 - 10K
10 - 10K
10 - 10K
**STD.
TOL.
1%
1%
2%
2%
***
TC (ppm/ °C)
0 ± 100
0 ± 100
0 ± 100
0 ± 100
FEATURES
*
See derating curve.
* * Other values available on request.
*** Temperature Coefficient test from -55° C to + 125° C.
Typical change less than 1% for 2000 hours at rated power.
The use of thermal mounting compound is manditory.
•
•
•
Typical VSWR @ 50 ohms
S11 FORWARD REFLECTION
Non-inductive design.
Heat sink electrically isolated from resistor element
for all CAR units.
Heat sink is connected to the resistor element for
all CAT units.
SWR
REF = 1.250 U
200.0 mU/DIV
CAR-20 & CAR-75
3
1
2
2
3
4
5
6
CAT-15 & CAT-75
0.040000
GHz
2.50420000
.050" from body.
CH 1 - S11
Reference Plane
0.0000 mm
Marker 1 - 6
1
0.04000000
1.020 U
1.027 U
2
0.52050000
1.126 U
1.039 U
3
1.00100000
1.332 U
1.062 U
4
1.49860000
1.099 U
5
1.99720000
1.155 U
6
2.50140000
1.247 U
GHz
GHz
GHz
GHz
GHz
GHz
RATED
LOAD
%
100
80
60
40
20
0
25
DERATING CURVE
CAR-20
& CAT-15
CAR-75
& CAT-75
100
175
CASE TEMPERATURE °C
VSWR Measured approx.
Component General,
Component General,
Inc.
Inc.
Phone (727) 376-6655 • Fax (727) 372-9096 • www.componentgeneral.com
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