SMB Technical Specification

The need for a subminiature connector with a quick connect/disconnect interface mechanism prompted the development of the SMB (Sub-Miniature-B) connector. A selfcentering outer spring and overlapping dielectric insulators allow for easy snap-on connections and good performance under moderate vibration. Vitelec supply 50 and 75 ohm versions which operate to 4 and 2 GHz respectively and are intermatable. Other manufacturers produce a 75 ohm version which will not mate with the MIL-C-39012 (50 ohm) version. Typical applications for the SMB connector are inter- or intra- board connections of RF or digital signals. SMB PLUG SMB JACK Products are manufactured in accordance with MIL-C-39012. The above specifications are typical, although some variations may occur within the range. For more detailed technical data on specific products, technical data sheets can be supplied.

ELECTRICAL IMPEDANCE THE VITELEC 50 OHM AND 75 OHM SMB RANGE OF CONNECTORS ARE FULLY INTERMATEABLE 50 OHMS 75 OHMS FREQUENCY RANGE DC TO 4GHZ DC TO 2GHZ INSULATION RESISTANCE 1000 MOHMS MIN. INNER CONTACT RESISTANCE 3.0 mOHMS MAX. OUTER CONTACT RESISTANCE 0.5 mOHMS MAX.   RG316 RG178   WORKING VOLTAGE 335V 250V 335V DIELECTRIC WITHSTANDING VOLTAGE 1000V 750V 1000V VSWR 1.25+0.04f 1.30+0.04f 1.25+0.04f INSERTION LOSS 0.3dB @ 1.5 GHZ (CABLE FIXING STYLES ONLY) RF LEAKAGE -55dB @ 2.5GHZ MECHANICAL & ENVIRONMENTAL DURABILITY 500 CYCLES TEMPERATURE RANGE -65°C TO +165°C MATERIALS BODY AND COUPLING NUT BRASS, GOLD PLATED PIN BRASS, GOLD PLATED CONTACT BERYLLIUM COPPER, GOLD PLATED FERRULE BRASS, GOLD PLATED INSULATOR TEFLON HARDWARE BRASS, GOLD PLATED Request specific product information