The SMB names from SubMiniature B. The SMB was developed in the 1960’s. The SMB is a smaller version of the SMA with snap-on coupling. SMB connector provides broadband capability throw 4GHz with a snap-on connector design, and it provides a fast and reliable connection for applications with high packing density. The SMB is available in 50 & 75 Ohm impedance. Interface dimensions conformable to the Standards: IEC 169-10 CECC 22130 MIL-C-39012 SMB Interface MILLSTD-348A/311 BS 9210 N 0007 SMB NFC 93562 series KMC