CRF-10A-250 Datasheet, PDF (1/1 Pages) Merrimac Industries, Inc. – BI-DIRECTIONAL COUPLERS

CRF-A Series
BI-DIRECTIONAL COUPLERS
5 to 1500 MHz / 4-Port / Multi-Octave / Minimal Size and Weight / Hi-Rel Hermetic Flatpack
PRINCIPAL SPECIFICATIONS
Model
Number
Frequency
Range,
MHz
Performance
Bandwidth,
MHz
¤ Coupling Frequency Directivity, *Insertion
Value, Sensitivity,
dB, Loss, dB,
dB, Nom. dB, Max.
Min.
Max.
CRF-10A-250 5 - 500
5 - 500
CRF- 20A-250 5 - 500
5 - 500
10 - 400
CRF-11A-1000 100 - 1500
100 - 1500
500 - 1000
CRF-20A-1000 100 - 1500
100 - 1500
500 - 1000
¤ Coupling is Referenced to the Input
10 ±1.0
20 ±1.0
20 ±1.0
11 ±1.0
11 ±1.0
20 ±1.0
20 ±1.0
± 0.5
20
1.3
± 0.75
± 0.5
18
1.0
20
0.6
± 0.5
± 0.5
18
1.5
20
1.2
± 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
Outline of A-Size Package
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 SPECIFICATIONS
Impedance:
50 Ω nom.
CW Input:
1 W max.
Weight, nominal:
0.1 oz (2.8 g)
Operating Temperature: -- 55° to +85°C
OPTIONAL SPECIFICATIONS
Coupling Values:
5 to 30 dB
Frequency Bands:
up to 2.5 GHz
Close tolerance Coupling: ± 0.5 dB
Three Port Equivalents: see CBF series
General Notes:
1. Merrimac directional couplers are available in a variety of packages to suit most applications. The CRF-A series utilizes the standard
flatpack which is suitable for aerospace applications where size, weight and reliability are important considerations.
2. Applications of directional couplers include monitoring of incident and reflected power,signal sampling for control loops and test signal
injection devices in BITE. These Bi-Directional Couplers have both coupled ports available but they may be ordered with one coupled
port terminated internally as in the CBF series of directional couplers.
3. Merrimac Couplers may be ordered with coupling values up to 30 dB covering selected frequency bands up to 65 GHz.
4. These units comply with MIL-C-15370 and can be supplied screened for compliance with additional specifications you specify for
military and aerospace applications requiring higher reliability.
25Mar96
For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX [phone]