2.54mm Pitch Dual Row Elevated 15mm Female Header Connector Long Leg Stacking Socket

Some boards simply cannot sit close together. A display needs air behind it, a power stage needs room for its heat sink, or a daughter card has to clear a tall electrolytic capacitor on the mother board. This elevated 2.54mm dual row female header solves that problem with a 15mm body height and extended solder legs, letting designers set the board to board gap at the connector instead of adding standoffs and a second assembly step.

The insulator keeps the same 2.54mm contact grid as a standard female header but moulds the body into a tall, ribbed tower. Vertical ribs stiffen the tower so it does not flex when a mating header is inserted off angle, and the extended contact tails are long enough to pass through 1.6mm boards and still leave a full solder fillet on the underside. Gold flash over nickel keeps the contact interface stable while the tall body absorbs the mechanical leverage of a deep stack.

• 15mm stacking height: A moulded 15mm tower fixes the board to board gap without standoffs, saving one assembly step per board pair.
• Ribbed tower geometry: Vertical ribs stiffen the elevated body so off angle insertion does not flex the contact field.
• Extended 3mm solder legs: Long tails leave a full fillet on 1.6mm boards and remain solderable from the underside in wave processes.
• Full 2.54mm grid: Contacts stay on the standard pitch, so the part mates with any ordinary dual row male header.
• Gold flash over nickel: Nickel underplating keeps contact resistance low and prevents the copper from migrating into the gold layer.
• Consistent insertion force: Balanced contact springs mean a 40 way stack still inserts by hand without a press.

Elevated sockets are the quiet workhorse of board stacking. They hold LCD and OLED driver boards above a main logic board in instrument panels, lift communication modules clear of magnetics on a power supply, and separate an RF daughter card from noisy digital ground planes. In LED lighting controls they raise the driver board so that airflow can pass between the two PCBs. Industrial enclosures use them instead of brass standoffs because the connector performs the spacing and the electrical connection in one placement, which shortens assembly time and removes a fastening operation from the line.

Body heights of 5.0, 8.5, 11.0, 15.0 and 20.0mm are all produced from the same family of inserts, so switching a design to a taller stack does not change the PCB footprint. We can extend the solder tails to 4.0mm for thick backplanes, mould a locating peg for pick and place alignment, and add a polarising wall so the mating header can only be inserted one way. For volume programmes the insulator can move to PA9T where the board passes through a second reflow, and contacts can be supplied with 0.38 micron selective gold on the mating area only to control cost.

Stacking sockets are packed in anti-static bags of 1000 pieces, with the tall bodies nested in a moulded tray so the towers do not bear the weight of the carton above. Each bag carries a desiccant and a humidity indicator card. Export cartons are rated to 15 kg gross, printed with the CNJWY neutral label, and closed with tamper evident tape. For sea freight we palletise in shrink wrapped stacks with edge protectors, which keeps the towers from deforming under load in a humid container. Custom carton printing, own-brand labels and barcoded inner bags are available, and every lot ships with a height gauge report that records the actual body height of five sampled parts.