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Card Edge Connector
Industrial, IT Datacom
When you are routing high-speed signals across a crowded server motherboard or building a storage backplane that has to stay reliable for years, the connector is rarely the headline — until it fails. CONSHARE built this vertical 56-position receptacle to disappear into your BOM: compact, predictable, and electrically clean enough for next-generation PCIe and memory-expansion links.
This is a board-to-board vertical receptacle built to SFF-TA-1002 Rev 1.2. The 1C form factor packs 56 contacts into a footprint barely wider than a postage stamp — practical when you need density without jumping to a mezzanine or cable assembly.
Engineers typically come here for one of three reasons:
They need a standardized, second-sourceable connector for a Gen-Z memory or accelerator module.
They are replacing an older connector family and want the same signal count in a smaller XY footprint.
They are laying out a backplane or mid-plane where vertical mating keeps stack height low and airflow clear.
At 0.60 mm pitch, the footprint is tight — but because the recommended land pattern follows the published SFF-TA-1002 1C pad layout, you can reuse proven routing strategies instead of starting from scratch. Two plated mounting holes anchor the housing mechanically, preventing the lifted-corner problem that sometimes appears after reflow.
High-speed designs punish lazy specs. Here the numbers are conservative on purpose — a connector with headroom gives you margin when temperature, vibration, and contamination hit.
Parameter | Rating |
|---|---|
Contact current (per pin) | 1.1 A at operating temperature |
Insulation resistance | ≥ 1000 MΩ |
Dielectric withstanding voltage | 300 VAC, ≤ 0.5 mA leakage |
Contact resistance | ≤ 30 mΩ initial; max 15 mΩ change after stress |
Insertion force peaks at 30.8 N, while withdrawal holds above 2.8 N. That keeps the connector seated during angled module installation without demanding excessive assembly pressure. Rated durability is 200 cycles — enough for development, qualification, and field swaps over the product lifetime.
The housing is a black high-temperature thermoplastic rated UL 94V-0, so it survives lead-free reflow without deformation. Contacts and board locks are copper alloy — chosen for consistent spring force and solderability.
The Au30μ" gold-on-nickel contact finish is the safer choice when low, stable contact resistance matters more than the last fraction of a cent on the BOM. Solder tails are matte tin over nickel, which wets cleanly and avoids the brittle intermetallic growth that thicker pure-tin platings can cause. The part is RoHS compliant and halogen-free throughout.
A few decisions that trip up even experienced teams:
Board thickness compatibility. Tails are designed for 1.0–2.0 mm PCBs. Going thinner risks incomplete solder fillets; going thicker may leave insufficient pin protrusion for reliable inspection. If your stack-up calls for an outlier thickness, confirm tail length before locking the BOM.
Plating thickness and mating frequency. Au30μ" is the right call when the module side gets swapped more than a handful of times — the extra gold thickness protects the nickel barrier from fretting wear. Au15μ" is perfectly fine for connectors that get mated once at system integration and then sit undisturbed. The cost difference per connector is modest; the cost of a contact resistance drift in the field is not.
Tape orientation for placement. If your pick-and-place feeder expects tape pulling from a specific side, specify it at ordering. A reel that unwinds in the wrong direction means manual re-spooling or scrapped feeder setups — entirely avoidable.
Logo marking and traceability. The standard build ships without a housing logo. If your incoming inspection or line-side traceability requires visible marking, flag it early. Adding a logo after tooling is locked in costs time and money that a line item on the PO would have saved.
CONSHARE runs connector manufacturing as process control, not final-inspection roulette.
Incoming materials: Copper alloy, resin, and plating chemicals are lot-traced and tested against RoHS and halogen-free requirements.
Stamping and plating: Contacts form in progressive dies with automated optical checks on plating thickness.
Assembly and molding: CMM verification of housing dimensions against the SFF-TA-1002 Rev 1.2 drawing.
100% electrical test: Every connector is checked for resistance, shorts, and opens before packing.
Lot reliability sampling: Insertion force, durability cycling, temperature cycling, and insulation resistance are verified per batch.
That layered approach is why the same drawing ships repeatedly without drift.
Nothing halts a line faster than a connector that arrives damaged or facing the wrong way in the feeder.
Reel: 300 pieces on embossed carrier tape, with 15-piece leader and trailer plus 200 mm extra tail tape for machine setup.
Carton: 6 reels per box, 1,800 pieces total. Cartons are sealed and padded; partial boxes get cushioning fill to prevent reel movement.
Lead time: Standard configurations are typically available from stock or short-cycle production. Staggered releases are supported so you avoid warehousing an entire quarter at once.
Not every design fits the catalog configuration. Common variants available on request:
Logo marking: Blank housing or custom identifier.
Plating: Au15μ" or Au30μ" on the contact area.
Packaging: Alternate reel sizes, kitting for high-volume programs, specified tape pull direction.
Deeper customization: Housing color, modified keying, or additional inspection documentation — reviewed case by case against the SFF-TA-1002 platform.
Tails are designed for 1.0–2.0 mm boards. Outside that range, contact CONSHARE for a custom tail-length review.
Yes. The mechanical interface follows SFF-TA-1002 Rev 1.2 exactly.
Physically, the connector carries high-speed differential pairs. Whether it closes your channel budget depends on trace length, via design, and board material. S-parameter data is available on request.
Au30μ" offers better wear resistance and long-term contact stability under fretting or repeated cycling. Au15μ" is a lower-cost choice for low-cycle, benign environments.
Embossed carrier tape on reels — 300 pcs per reel, 1,800 pcs per carton, with protective leader and trailer sections.
Reference base part number CUNZ056L101XX and specify plating option, logo requirement, and tape orientation. CONSHARE provides mechanical drawings, material declarations, and reliability reports to support qualification. For volume programs, ask about scheduled releases and consignment stocking options.
CONSHARE — Interconnect Precision Technology (Shenzhen) Co., Ltd.
