Product Overview

Board-to-board connectors get bought as standalone parts, and that is where the trouble starts. This one is the male half of a 0.80 mm pitch pair: it stands 4.50 mm above your PCB and, mated with a 5.00 mm socket body, puts the two boards 5.00 mm apart. CONSHARE keeps four codes in regular production, all black LCP, tape and reel, reflow only. Four questions pick the right one: how many nets, how much length you can spare, how often the pair gets separated, and how much Z-height the enclosure allows.

Which of the four codes fits your board

The four share pitch, body height, width and land pattern. Switching between them changes the length and nothing else, so you can lay out a board before the pin count is frozen.

What the 4.50 mm body really gives you

The plug only sets part of the height

Final board spacing is a property of the pair, not of one half. This plug contributes 2.55 mm of it; the socket supplies the rest. Ordering the plug alone and assuming 4.50 mm of gap is the fastest way to a stack that will not close.

Three spacings from one plug

Need more than 10 mm? Change the plug, not the socket. CONSHARE also runs 9.50 mm and 14.50 mm bodies on the same tooling family, taking the pair to 15.00, 16.00 and 20.00 mm.

Choosing a position count

Count your grounds before you count your signals

These are signal-grade contacts. A 0.80 mm pitch pair behaves well when every fast net has a return beside it and badly when it does not. Reserve a quarter to a third of the positions for ground and put them at the row ends, where the brass end plates already give you a low-impedance path into the plane. Assign every pin to a signal and you will be back for the next size up.

Only the length moves

Both numbers are linear: overall length is 0.80 mm times positions per row plus 7.30 mm, and the contact span is 0.80 mm times one less than the positions per row. Nothing else in the footprint moves.

2 x 60 is a made-to-order size

The standard grid steps from 2 x 50 straight to 2 x 70. The 2 x 60 is built on shared tooling, so it is real and repeatable, but it is not a shelf item. Plan a production slot, or take 2 x 50 if the schedule is tight.

How much gold is worth paying for

Match the finish to your mating cycles

Gold is priced by thickness, but it is one line in the cost of a moulded, plated and taped part, so moving from 3 to 15 µin moves the piece price far less than buyers expect. Quote both.

Where the gold is, and why it matters

Gold goes on the contact area only. The tails are matte tin and a nickel barrier sits under both. You are not paying for gold where it does nothing, the tails solder with the paste and profile you already run, and the barrier stops gold migrating into the joint.

Getting it onto the board without rework

Land pattern and board tolerance

Hold your fabricator to ±0.05 mm on the lands. At 0.80 mm pitch that is the difference between a clean fillet and a bridge. Do not enlarge pads for hand assembly; this is a reflow-only part.

The end plates do three jobs

Each end carries a brass grounding plate, matte tin over nickel, doing three jobs: a low-impedance return for the outermost signals, the anchor that takes the unmating pull instead of your solder joints, and the stop that keeps the housing corners from lifting when the boards are pried apart. Give those pads full copper and via them into the plane. A starved ground pad is the usual reason one of these cracks off a board in service.

Reflow and handling

The LCP housing is UL94V-0 and runs a normal lead-free profile. Parts arrive on tape and reel, flat top face for the nozzle. Support the panel under the connector when you press the boards together; a 55 mm housing will bow a thin PCB before it damages itself.

What the ratings let you do

The line that bites is contact resistance: up to 40 mV per contact at full current, so a net going up one contact and back down another loses about 80 mV. On a 1.2 V rail that is 7 percent of your tolerance spent in the connector.

Three boards this plug is sitting on

Handheld scanner, display over mainboard

An 80-position link carrying a display interface, touch and control lines in a 5.00 mm gap. Grounds take every fourth position and the pair is mated once on the line, so 3 µin gold is the right spend.

A swappable radio module

A sensor node ships with two radio options on one host footprint. 100 positions, separated a few times a year in the field. The 15 µin version earns its premium back in the first year of service calls.

A fixture instead of pogo pins

A test jig uses a 100-position pair because the board under test already carries a fine-pitch connector. It cycles hundreds of times a week, so the thicker gold and the end plates both work hard here.

Choose something else when

• A single net needs more than 0.5 A, even paralleled

• Board misalignment over a few tenths of a millimetre; a floating design absorbs that, this does not

• You need more than 20 mm of separation

• The boards sit side by side, not face to face

• The build needs wave soldering or hand assembly

• You need 2 x 60 in volume next week

How CONSHARE builds, checks and ships these

Plating thickness is verified on every production lot, nickel barrier included, because a thin barrier is what lets gold diffuse and contact resistance drift in the field. Coplanarity is checked across the full part length, which matters far more on the 2 x 60 than the 2 x 40.

The four codes above are held as finished goods, so samples and small batches move without waiting on a plating or tooling queue. Everything else is built to order on tooling that already exists: 2 x 60, the 9.50 and 14.50 mm bodies, gold flash or 1, 5, 10 and 30 µin finishes, and other packing. No tooling charge, low-thousand order quantities. Send us your stack height and pin list and we will name the matching socket too, so you are not left with two halves that do not close to the height you designed for.

FAQ

Is this the whole interface?

No. It is the plug half. You need the matching 0.80 mm socket on the other board; the pair sets your board spacing.

How much gap do I actually get?

5.00 mm with a 5.00 mm socket body, 6.00 mm with a 6.00 mm body, 10.00 mm with a 10.00 mm body.

3 µin or 15 µin gold?

3 µin for a product assembled once. 15 µin for anything unmated repeatedly: fixtures, field-replaceable modules.

Can I push 1 A through a contact?

Not through one. Parallel two or three positions and re-check the drop.

Is 2 x 60 a stock item?

No. It is a regular build on shared tooling, so plan a production slot or use 2 x 50.

Product Documentation