Connector Industry Roundup — September 27, 2026:
Expanded-Beam Fiber Meets the 38999 Footprint, Fischer's US Cable-Assembly Bet & Harwin Buys KEC

Three connector developments landed on September 27, and they point in the same direction: the industry is consolidating around established standards rather than inventing new interfaces. A rugged-fiber supplier dropped expanded-beam optics straight into a MIL-DTL-38999 size-11 cut-out. A Swiss connector maker doubled its US cable-assembly plant because customers increasingly buy assemblies, not parts. And a British high-reliability name bought an EMC backshell specialist to complete its shielding offering — rounded out by a cadmium-free D38999 finish.

Expanded-Beam Fiber Arrives on the MIL-DTL-38999 Footprint

Micropol expanded its FALCON rugged fiber-optic connector family with three products built around the MIL-DTL-38999 connector footprint, targeting high-speed links in harsh, contaminated environments where expanded-beam optical connections outperform conventional physical-contact fiber (eeNews Europe). The new parts are the FALCON Mini SQ 38999 FP, the FALCON Mini D-Hole 38999 FP, and FALCON 38999 Expanded Beam Connectors in sizes 11 and 13.

The design decision that matters is mechanical. The Mini SQ and Mini D-Hole versions retain the footprint of a standard size-11 MIL-DTL-38999 connector, so a designer can introduce expanded-beam fiber into a system using existing panel cut-outs and avoid a mechanical redesign. Micropol says the connectors also interface directly with tactical cables fitted with expanded-beam connectors, removing the need for adapters — which is exactly the kind of field-deployment simplification that a maintenance organisation notices.

Expanded-beam connections use lenses to expand and collimate the signal across the interface instead of relying on direct fibre-to-fibre contact. That is what buys tolerance to dust, dirt and repeated mating — the failure modes that make conventional fiber fragile on a military or industrial platform. Pairing an established footprint with non-contact optics is the pragmatic version of optical retrofit: an existing 38999 panel takes fibre without new hole patterns or backshells.

Fischer Connectors Doubles US Cable-Assembly Capacity

Fischer Connectors is doubling the footprint of its cable-assembly manufacturing facility in Alpharetta, Georgia, the largest cable-assembly operation within parent company Conextivity Group, with the expanded site expected to be fully operational in the first quarter of 2027 (eeNews Europe). The plant currently employs nearly 300 people and produces assemblies for defense, medical and industrial applications.

The strategic logic is worth quoting directly. "Connectors from Fischer are increasingly delivered as complete cable assemblies, and the market, particularly the U.S. military market, is showing growing demand for these solutions," said Olivier Dalicieux, Chief Manufacturing & Supply Chain Officer at Conextivity Group. "By doubling our manufacturing footprint in Alpharetta, we are increasing our capacity to meet this demand today while creating room for continued growth in the years ahead."

The capacity investment is part of a broader supply-chain push: since the third quarter of 2025 the company has made targeted investments to improve scalability, and it has grown its operations workforce by 20% over the past 12 months. For a buyer, the signal is less about one plant than about where value is migrating. A connector increasingly ships as a qualified assembly with overmoulding, strain relief, shielding and tested continuity — which means the purchasing decision is drifting from a part number to a build-to-print drawing.

Harwin Buys KEC to Add EMC Backshells

Harwin has acquired KEC, a UK-based specialist in EMC interconnect backshells, bringing the company's products, operations and team into the Harwin group and widening its high-reliability portfolio for aerospace, defense and high-end industrial applications (eeNews Europe). Financial terms were not disclosed.

KEC has spent 47 years developing rugged interconnect products — circular and D-type EMC backshells, glands and panel fittings, plus customised solutions — and its parts are already used alongside Harwin's HRi connector range in a number of systems, which makes this a technically adjacent acquisition rather than a diversification. KEC is certified to ISO 9001 and EN 9100, the aerospace quality standard, and has built its business squarely around aerospace, defense and other high-reliability markets.

The EMC element is the part a systems engineer should note. As platforms pack more high-speed signal into the same shell, shielding is no longer a box-tick on a datasheet — it is a system-level reliability and compliance requirement, and backshells, glands and panel fittings are where shielding continuity is made or lost. Harwin said it will preserve KEC's portfolio, expertise and culture while investing in future growth; KEC chair David Dyson, who founded the firm in 1979, called Harwin the right custodian of that legacy.

Cadmium-Free Class AA Reaches the D38999 QPL

Amphenol Aerospace's AP-93-plated MIL-DTL-38999 Series III connectors are now available from FDH Electronics, offering a cadmium-free option for aerospace and defence systems. The AP-93 finish is the first RoHS-compliant D38999 finish approved by the US Defense Logistics Agency (DLA) for the Class AA designation, and Amphenol Aerospace is currently the only manufacturer qualified to supply connectors under the new Qualified Products List class, according to FDH Electronics (eeNews Europe).

The specification numbers here are stronger than the "green" label alone suggests: a 1,000-hour dynamic salt-spray rating, 500 mating cycles and a sub-2.5 mV shell-to-shell resistance put AP-93 in the same electrical and environmental class as legacy cadmium finishes. Crucially, it stays intermateable with cadmium-plated 38999 connectors, so a programme can switch one side of a mated pair without replacing the other — turning a compliance requirement into a drop-in substitution rather than a redesign.

What It Means for Connector Buyers

• Optical retrofit without new panels: if you need fibre on a platform built around 38999, the barrier is usually the panel, not the optics. Expanded-beam parts that reuse a size-11 cut-out let you add a <1.2 dB, 40 Gbit/s link with no new hole pattern — ask vendors specifically for the 38999 footprint fit, not just the optical figures.
• Buy assemblies, not parts: Fischer's Georgia expansion confirms where demand is going. If you currently bolt discrete connectors onto your own harness line, pricing and lead-time risk are moving toward the assembly level, so qualify build-to-print assembly suppliers early.
• Shielding is a system problem: the Harwin–KEC deal is a reminder that backshells, glands and panel fittings decide whether an EMC specification is actually met. When you spec a shielded connector, spec its backshell from the same quality system (ISO 9001 / EN 9100).
• Plan the cadmium exit now: cadmium-free Class AA is now on the D38999 QPL with a 1,000-hour salt-spray rating and full intermateability. Treat it as the default for new designs and a drop-in for legacy ones, and check REACH exposure across your part list.
• Watch the small-form-factor RF tier: on the same week, Cinch launched its ultra-miniature XMC RF cable assemblies — XMC-6 to 6 GHz and XMC-9 to 9 GHz, with the XMC-6 at a 1.2 mm mating height, roughly 50% lower than u.FL-style interconnects and more than 60% smaller on PCB area, across 32 standard configurations (eeNews Europe). Dense RF front-ends keep shrinking, and the interconnect follows.

The consistent theme across the week is that the winning products extend an interface people already have — a 38999 cut-out, an existing QPL class, a mated cadmium pair, a standard backshell ecosystem — rather than asking anyone to adopt a new one. For buyers, that is good news: the upgrade path is measured in substitutions, not redesigns.