CRS Series
DIRECTIONAL COUPLERS
10 to 500 MHz / Multi-Octave / 3-Port / 10 and 20 dB Standard / Square Header
PRINCIPAL SPECIFICATIONS
Frequency Operating ¤ Coupling, Frequency
Model
Range, Bandwidth,
dB,
Sensitivity,
Number
MHz
MHz
Nom.
dB, Max.
CRS-10-165
CRS-20-110
30 - 500
10 - 400
30 - 300
300 - 500
10 - 400
20 - 200
10
±1.0
10
±1.0
20
±1.0
20
±1.0
±0.25
±0.25
±
0.5
±
0.25
Directivity, Insertion
CW
Wt.,
dB,
Loss,* VSWR, Input, Nom.
Min.
dB, Max. Max.
W
oz.(g)
30
25
20
25
0.7
1.0
0.6
0.4
1.3:1
1.3:1
1.4:1
1.25:1
5
2
0.5(14)
0.25(7)
¤ Coupling is Referenced to the Input
* Insertion Loss excludes Coupling loss
Package Outline - CRS-20-110
GENERAL SPECIFICATIONS
Impedance:
Operating Temperature:
50
Ω
nom.
-- 55° to +85°C
General Notes:
1. Merrimac offers a wide variety of
directional couplers covering frequencies
from 100 kHz to 18 GHz. They are ideally
suited to monitoring forward and reflected
power with minimal perturbation of the
main line signal.
2. Applications of directional couplers
include monitoring of incident and
reflected power, signal sampling for
control loops and test signal injection
devices in BITE.
3. CRS series directional couplers may be
used back-to-back as dual directional
couplers or ordered with both coupled
ports available as in the CRP series.
4. These units comply with MIL-C-15370
and can be supplied screened for
compliance with additional specifications
you designate for military and aerospace
applications requiring higher reliability.
NOTES:
1. Tolerance on 3 place decimals .010(.25) except as noted.
2. Dimensions in inches over millimeters.
±
Package Outline - CRS-10-165
NOTES:
1. Tolerance on 3 place decimals .010(.25) except as noted.
2. Dimensions in inches over millimeters.
±
25Mar96
For further information contact
MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531
MERRIMAC [ MERRIMAC INDUSTRIES, INC. ]
