CBF-10A-375 Datasheet, PDF (1/1 Pages) Merrimac Industries, Inc. – 3-PORT DIRECTIONAL COUPLERS

CBF-A Series
3-PORT DIRECTIONAL COUPLERS
5 to 2000 MHz / Multi-Octave / 10 & 20 dB Models / Hi-Reliability Hermetic Package / Flatpack
Model
Number
CBF-10A-375
PRINCIPAL SPECIFICATIONS
Frequency Performance
Range, Bandwidth,
MHz
MHz
¤ Coupling Frequency Directivity,
dB,
Sensitivity,
dB,
Nom.
dB, Max.
Min.
5 - 750
5 - 750
10 ± 1.0
± 0.5
20
*Insertion
Loss, dB,
Max.
1.3
CBF-20A-375 5 - 750
5 - 750
20 ± 1.0
± 0.75
18
1.0
10 - 400
20 ± 1.0
± 0.5
20
0.6
CBF-11A-1250 100 - 2000 100 - 2000
11 ± 1.0
± 0.5
18
1.5
500 - 1000
11 ± 1.0
± 0.5
20
1.2
CBF-20A-1250 100 - 2000 100 - 2000
500 - 1000
¤ Coupling is Referenced to the Input
20 ± 1.0
20 ± 1.0
± 0.5
18
1.5
± 0.5
20
1.2
* Insertion Loss excludes Coupling Loss
VSWR,
Max.
1.5:1
1.5:1
1.3:1
1.7:1
1.5:1
1.7:1
1.5:1
A-Size Package Outline
GENERAL SPECIFICATIONS
Impedance:
CW Input:
Weight, nominal:
Operating Temperature:
50 Ω nom.
1 W max.
0.1 oz (2.8 g)
-- 55° to +85°C
OPTIONS
Coupling Values:
5 to 30 dB
Higher Frequency:
up to 2.5 GHz
Close Tolerance Coupling: ± 0.5 dB
NOTES:
1. Tolerance on 3 place decimals ±.010(.25) except as noted.
2. Dimensions in inches over millimeters.
3. Dimensions marked with * apply only at body.
4. All unmarked pins are case ground.
General Notes:
1. Directional couplers are useful for monitoring incident and
reflected power, signal sampling, control loops and BITE.
2. The CBF-A series consists of 3 port devices with one port
internally terminated. They may be used back-to-back as dual
directional couplers. The CRF-A series of bi-directional couplers
provides direct access to both coupled ports.
3. Merrimac couplers may be ordered with specific coupling values
up to 30 dB and over selected frequency bands up to 18 GHz in
microwave packages.
4. These units comply with the applicable portions of MIL-C-15370
and can be supplied screened to comply with additional
specifications you designate for military and aerospace
applications requiring higher reliability.
09Apr96
For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX [phone]