Chips – Standard
Terminations
EMC’s high power chip terminations are optimized for RF
performance. All EMC chips are designed to minimize the
variability of capacitive reactance. Localized hot spots
associated with trimming have been eliminated. Reduced
lot variation means your circuit performs so consistently
that in most cases no tuning is required.
General Specifications
Nominal Impedance . . . . . . . . . . . . 50 Ohms ± 5%
Frequency Range . . . . . . . . . . . . . . . DC to 4 GHz
Power Rating . . . . . . . . . . . . . . . . . 2 to 250 Watts
Power Derating . . . . . . . . . . . . . . 100% @ 100° C
Derates to 0% @ 125° C
Operating Temperature . . . . . . . . -55° C to 150° C
Ordering Information
CT
37
LENGTH
04
= 0.04"
05
= 0.05"
10
= 0.10"
12
= 0.12"
20
= 0.20"
23
= 0.23"
25
= 0.25"
35
= 0.35"
37
= 0.37"
25
ALN
S
PERFORMANCE
(blank) = Standard
T
= Telecom Tuned
PRETINNING
(blank) = Standard
S
= Pretinning
F
= Lead Free
Material Specifications
Substrates . . . . . . . . . . . . . BeO, AlN, or Alumina
Resistive Material . . . . . . . . . . Thick or Thin Film
Termination Material . . .Thick Film, Nickel Barrier,
Solder Plated Finish
SUBSTRATE MATERIAL
(blank) = BeO (Beryllium Oxide)
ALN
= AlN (Aluminum Nitride)
A
= Alumina
WIDTH
02
= 0.02"
05
= 0.05"
06
= 0.06"
10
= 0.10"
18
= 0.18"
25
= 0.25"
35
= 0.35"
37
= 0.37"
TYPE
CT
= Chip Termination
Note: Not every combination of size is available.
See selection table on page 39.
Other ohms values available upon request. Please contact factory.
EMC Technology
8851 SW Old Kansas Ave. Stuart FL 34997 (772) 286-9300 (800) 544-5594 www.emct.com
38
A Smiths Group company
Chips – Standard
Terminations
Selection Table
Power (W) Substrate Frequency Max.
Avg.
Type
(GHz)
VSWR
2
5
5
10
15
15
15
15
20
20
20
40
50
80
85
100
120
120
150
150
150
250
BeO
Alumina
AlN
BeO
BeO
AlN
BeO
AlN
BeO
AlN
Alumina
AlN
BeO
Alumina
AlN
BeO
BeO
AlN
AIN
BeO
AlN
BeO
26.5
2
4
4
4
4
4
4
4
4
2
4
4
2
4
4
2
2
2
2
2
2
1.25
1.35
1.25
1.25
1.25
1.10
1.25
1.25
1.25
1.25
1.35
1.35
1.35
1.35
1.25
1.25
1.10
1.25
1.20
1.25
1.35
1.35
L
Dimensions In. (mm)
W
T
TW
Part
Number
0.040 (1.02) 0.020 (0.51) 0.011 (0.28) 0.009 (0.23)
CT0402
0.200 (5.08) 0.100 (2.54) 0.040 (1.02) 0.090 (2.28)
CT2010A*
0.200 (5.08) 0.100 (2.54) 0.040 (1.02) 0.090 (2.28)
CT0505ALN
0.050 (1.27) 0.050 (1.27) 0.011 (0.28) 0.050 (1.27)
CT0505
0.100 (2.54) 0.050 (1.27) 0.011 (0.28) 0.050 (1.27)
CT1005
0.100 (2.54) 0.050 (1.27) 0.011 (0.28) 0.050 (1.27)
CT1005TALN
0.120 (3.05) 0.060 (1.52) 0.026 (0.66) 0.054 (1.37)
CT1206
0.120 (3.05) 0.060 (1.52) 0.026 (0.66) 0.054 (1.37)
CT1206ALN
0.200 (5.08) 0.100 (2.54) 0.041 (1.04) 0.090 (2.28)
CT2010
0.200 (5.08) 0.100 (2.54) 0.041 (1.04) 0.090 (2.28)
CT2010ALN
0.247 (6.27) 0.247 (6.27) 0.040 (1.02) 0.038 (0.97)
CT2525A*
0.247 (6.27) 0.247 (6.27) 0.041 (1.04) 0.125 (3.18)
CT2525ALN
0.247 (6.27) 0.247 (6.27) 0.041 (1.04) 0.125 (3.18)
CT2525
0.350 (8.89) 0.180 (4.57) 0.025 (0.64) 0.060 (1.52)
CT3518A*
0.230 (5.84) 0.350 (8.89) 0.041 (1.04) 0.150 (3.81)
CT2335ALN
0.230 (5.84) 0.350 (8.89) 0.041 (1.04) 0.150 (3.81)
CT2335
0.350 (8.89) 0.230 (5.84) 0.040 (1.02) 0.045 (1.14)
CT3523T*
0.370 (9.40) 0.245 (6.22) 0.041 (1.04) 0.120 (3.05)
CT3725ALN
0.375 (9.52) 0.250 (6.35) 0.040 (1.02) 0.038 (0.97)
CT3725TALN*
0.370 (9.40) 0.245 (6.22) 0.041 (1.04) 0.120 (3.05)
CT3725
0.372 (9.45) 0.372 (9.45) 0.051 (1.30) 0.175 (4.45)
CT3737ALN
0.372 (9.45) 0.372 (9.45) 0.051 (1.30) 0.175 (4.45)
CT3737
* Resistive material is thin film.
Dimensions
EMC Technology
8851 SW Old Kansas Ave. Stuart FL 34997 (772) 286-9300 (800) 544-5594 www.emct.com
39
A Smiths Group company
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