The TE Connectivity 619135-1 is a Non-Gendered Stacker coaxial compression connector — a hermaphroditic interconnect that mates two identical halves without a designated plug or jack. It sits in the 619135 base series as a single-port, surface-mount compression design, built for board-to-board RF signal paths where the same part number goes on both sides of the link. The 50 Ohm impedance and 6 GHz frequency ceiling place it in the mid-band RF range, suited for wireless infrastructure, test equipment, and antenna feed networks where signal integrity matters more than cycle life.
The 50 Ohm impedance matches the characteristic impedance of common coaxial cables and PCB traces. The 6 GHz maximum frequency covers sub-6 GHz bands; above that the insertion loss and return loss degrade. At 0.2 dB insertion loss across the band, the signal budget hit per mated pair is low enough to stack several in a daisy chain without a repeater. The 25 mating cycles rating is the limiting factor for field service. After 25 cycles the contact resistance starts to drift outside the RF specification. Treat this as a semi-permanent install: set it once, test it, and leave it. If the board needs frequent rework or the cable gets swapped regularly, look at a threaded or push-pull RF connector with a higher cycle rating. The dielectric material — a blend of PCT and PEEK — holds its dielectric constant across that span, so the impedance doesn't drift with temperature. The gold body finish and gold center contact plating resist corrosion in humid or mildly corrosive environments, though the connector is not IP-rated for washdown.
The 619135-1 terminates via compression — no solder iron needed on the center contact. The shield termination is solder, so the outer ground ring gets reflowed to the PCB pad. Surface mount mounting means the part is placed by pick-and-place and reflowed alongside other SMT components. The Tray packaging feeds into standard tray feeders or hand placement for prototype runs. The brass center contact and brass body with gold finish give a reliable RF ground path through the solder joint.