PE3W19121 is a BMA jack to SMA male cable using RG55 coax. This Pasternack BMA jack to SMA male cable assembly uses a 50 Ohm BMA for connector 1 and a 50 Ohm SMA for connector 2.
Our jack BMA to male SMA cable assembly uses a flexible cable type that is 53 Ohm. Pasternack PE3W19121 BMA jack to SMA male cable assembly is constructed with RG55 coax.