Stackable embedded connector guide

PC/104 Connectors and Stackable Headers for Embedded Systems

PC/104 connectors are stackable board-to-board connectors used in embedded computer and industrial control systems. Buyers should confirm the exact PC/104 format, position count, row arrangement, pitch, stack height, tail length, plating, board thickness and mating connector dimensions before requesting a quote.

2.54mm dual row pin header connector representative photo for stackable embedded board projects by Kirision — Representative Kirision connector image for specification review. Final structure is confirmed by drawing, sample or BOM details.

PC/104 connector requests should be handled as mechanical specifications, not only as 64-pin or 40-pin part names. In a stackable embedded board system, the connector defines board spacing, mating depth, solder tail length and alignment between boards.

Many PC/104-style connectors are based on 2.54mm pitch header and socket structures, but the required layout depends on the board standard and the customer drawing.

Key specifications to confirm

PC/104 format	Exact board standard, drawing or customer reference should be provided.
Position count	Confirm total positions and row arrangement to avoid similar-name mismatches.
Pitch and row spacing	Usually based on the customer drawing and PCB footprint.
Stack height	Final board-to-board distance after mating controls clearance.
Tail length	Solder tail and stack-through length must suit board thickness and assembly method.
Mating connector	Mating board, socket or header reference ensures the complete stack fits together.

Stack height is the critical dimension

If stack height is wrong, boards may not clear components, standoffs, heat sinks or enclosure walls. If tail length is wrong, the connector may not solder correctly or may not pass through the board as intended.

For replacement work, a photo can identify connector style, but drawing or measured dimensions are needed for stack height, tail length, row spacing, total positions and mating depth.

RFQ checklist

PC/104 format, board drawing or customer reference.
Position count, row arrangement, pitch and row spacing.
Stack height after mating and tail length.
Board thickness, plating and mating board reference.
Exact replacement requirement or acceptable equivalent range.

Send a connector RFQ

Send drawing, sample photo, BOM, STEP, DWG or PDF files. Kirision can review pitch, rows, positions, mounting style, height, tail length, mating connector, plating, quantity and export document requirements before quotation.

ISO 9001 quality management documentation can be provided for qualified RFQ projects. RoHS material compliance review is available on request when export projects require it.

Send RFQ

FAQ

Is PC/104 always the same connector?

No. Buyers should confirm exact format, positions, layout, stack height and mating connector. Similar names can refer to different mechanical requirements.

Why is stack height critical?

Stack height controls board-to-board spacing and component clearance. A small height difference can cause interference with components, standoffs or enclosures.

Can a PC/104 connector be matched from a sample?

Yes, but dimensions should be measured and confirmed before production. Photos help identify style; drawings or measurements confirm fit.

What should distributors show on a PC/104 connector listing?

Show position count, row layout, pitch, stack height, tail length, plating and clear side-view photos. These details reduce wrong-model inquiries.

Recommended Kirision products for this guide

Use these product families as RFQ starting points. The final connector structure is confirmed by pitch, rows, positions, mounting style, height, tail length, plating, mating connector, drawing or sample details.