Canford

www.canford.co.uk

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CO-AXIAL CONNECTORS SELECTION GUIDANCE

For the majority of co-axial connectors, it is critical to have a connector that is specific to the cable to be used. Most connector manufacturers use a cable group coding system, but they are all different, as might be expected. Since a substantial number of Canford’s range of co-axial cables were BBC designs, it is logical therefore to use the BBC’s own classification, extended to cover designs from Canford’s own range.

When ordering connectors, find the cable being used in the chart below. This indicates a group type reference, which is used in most connector descriptions. However, it is essential to check that the correct crimp die is being used when making crimp terminations. Because there are small detail variations in similar connectors from each manufacturer, different crimp dies may be needed. A similar looking connector from another manufacturer, on the same size cable, does not guarantee that the crimp die regularly used will still work.

See the crimp die selection chart for suitable dies for every combination of cable and connector stocked by Canford.

CableCable typesOverallDielectricImpedance
groupdiameterdiameter
AVCL(BBC PSF1/2,) CV14 (BBC PIF14/2)7.54.975
BVCS (BBC PSF1/3), VCF6.53.7575
CRCH (BBC PSF1/4), URM67, RG21310.557.450
DRCM (BBC PSF1/6)5.23.150
EVCM-M (BBC PSF1/7) (obsolete),
CV7 (BBC PIF7/7)31.875
FRG174U31.650
GURM435.153.150
HRG11, CT167, CX167, URM5710.557.475
JS-VHS, URM111, RG179B/U, Belden 179DT2.61.675
KURM2025.13.475
LVCM, VFM, CVC3, CVC4, CVC5, CVA323.72.3275
MVCE (BBC PSF1/8)6.84.975
NVFS6.84.975
QRG59B/U, URM90,
Belden 1505A, 1505F 6.153.775
RCT125, CX125, URM2037.55.2575
SRCL (BBC PSF1/10) (obsolete)1510.850
TRG21410.87.2450
UThick Ethernet10.256.3550
VThin Ethernet, RG584.62.550
WSDV-M3.11.975
XSDV, SDV-X, Belden 1855A, 1855ENH4.52.875
YSDV-L, SDV-F, Belden 1694A, 1695A,
RG6, CT100, CX1006.84.875
ZSDV-HD, Belden 7731A10.167.1175