Board-to-Board Mezzanine Plug for Tight Stack Heights
The Molex 2074200081 is an 8-position plug from the SlimStack 207420 series, designed for board-to-board mezzanine stacking at a mated height of 0.8 mm. The 0.031" (0.80 mm) pitch keeps the footprint compact, while the dual-row arrangement with 4 signal and 4 power contacts handles mixed-duty interconnects where a single connector carries both logic and low-current power. The plug mates with the matching SlimStack receptacle (same series) to form the complete mezzanine pair.
Position Count and Power-Signal Split
The 8 positions are split 4 + 4 power, meaning four contacts are dedicated to current-carrying duty and four to signal. This is a deliberate layout for applications that need a local power rail routed through the mezzanine interface without a separate power connector. The gold contact finish (4.00 µin) on all positions keeps contact resistance low across both signal and power paths, though the light flash limits the connector to moderate mating cycle counts — typical for a one-time board-stack assembly rather than repeated field disconnects.
SMT Mounting with Solder Retention
This is a practical detail for a mezzanine plug that sees lateral loads during board separation or handling. The Tape & Reel packaging (Cut Tape option) suits automated pick-and-place lines.