CONNECTORS WE'VE QUALIFIED.

Buyers do not search by harness type — they search by the connector that is on the drawing. A purchasing engineer who needs a Molex Mini-Fit Jr or a TE AMP MQS or a JST PHR knows exactly which connector family the BOM calls for and wants to see a vendor with active dies, brand-authorized distribution, and a representative customer program already shipping. This hub gives you the brand-by-brand view of what we have qualified and tooled on the Cavite floor. Each connector page lists the active applicator, the die calibration cadence (four-point cross-section every shift, ±5 N pull-force window on the Komax cells), the brand-authorization status, and a representative customer program already in production. If your connector is not listed here, the answer is one of three: (1) we have it on the Shenzhen floor and can transfer the die to Cavite in 2-4 weeks under existing JV tooling agreements, (2) we are an approved sub-tier through a partner CM and can route the order with full traceability, or (3) we will qualify the connector inside two weeks if the program economics warrant — most JAE 800-series and Hirose IT3 series fall into this category. The connector is the single highest-risk line on a wire harness BOM. Connector substitution at the drawing level looks innocent — pin pitch matches, mating-cycle rating looks similar — but the secondary spec drift (plating thickness on the female terminal, polarization key index on the housing, retention force on the lock) is what turns into a field return at month nine. Our cross-reference library for the eight major brands is maintained against actual datasheet pulls, not OEM marketing equivalents — and we mark up your DXF in the first DFM round with the alternates we have actually shipped on parallel programs, including price delta against your annual volume. Connector substitutions documented on this hub typically save 7-14% on signal-side BOM with no reliability give-up. The brand-authorized distribution piece matters because gray-market connectors carry counterfeit risk that no PPAP package can audit out — every reel and every connector lot enters the Cavite line through MES barcode scan at receiving, with the brand-authorized invoice retained 7 years per IATF §7.5.3. Audits open with that record.

Crimp vs IDC vs solder cup decision tree

Three termination methods compete for any signal-side or power-side connector decision, and the trade-off matrix is more nuanced than the headline rating. Crimp termination — a calibrated mechanical compression of a metal terminal onto a stripped conductor — is the production default for currents above 3 A, voltages above 50 V, and any program with mating cycles in the hundreds of thousands. A correctly crimped joint, verified by four-point cross-section against IPC/WHMA-A-620 figures 7-1 through 7-12, is gas-tight and electrically lower-resistance than the bulk wire it terminates; a poorly crimped joint is the single highest-frequency wire harness field-return root cause we see at lab teardown. IDC (insulation displacement contact) is the right answer for ribbon cable, mass-termination connectors, and any application where assembly cycle time matters more than termination peak current; IDC connectors run at 1-3 A per circuit comfortably, hold mating cycles in the 50-200 range, and let an operator terminate 40 conductors in one press cycle. The IDC tooling is brand-locked — a 3M MDR press will not seat a TE Champ tool head — so program-level tooling decisions matter at design freeze, not at first article. Solder cup is the niche specialist — circular MIL connectors (M39029, MS3470 series), high-voltage panel-mount, and any program where the BOM forbids crimp dies (typically because the terminal is a one-off and the die cost cannot be amortized across volume). Solder cup is sensitive to operator skill and IPC J-STD-001 certification level; it adds 30-90 seconds per termination over crimp; it should never be the default when crimp dies are available for the same connector family. Our DFM round flags solder-cup specs on volume programs as a cost-out opportunity and quotes the alternate crimp version with the typical 8-15% labor saving documented on the markup sheet.

Sealed vs unsealed connector qualification (IP67 / IP68 / IP69K)

The IEC 60529 IP code is the dominant sealed-connector specification framework, and the second digit (water ingress) is where most program audits open. IP67 means the assembly survives temporary immersion at 1 m depth for 30 minutes — the rating that EV charging connectors, marine bilge harnesses, and outdoor industrial junction boxes typically carry. IP68 raises the bar to continuous immersion at depths and durations specified by the manufacturer (typically 2 m for 24 hours on automotive sealed connectors). IP69K, defined separately under DIN 40050-9, adds high-pressure / high-temperature water jet resistance — the rating that food-and-beverage washdown and agricultural-implement programs require. The qualification difference between unsealed and sealed connectors is not a connector swap but a system requalification: the cable jacket compound, the cordgrip, the panel-side seal, and the harness drainage path all become part of the rated assembly. Test points come from IEC 60529 directly: a 1.0 mm test wire, a 100 mm spray nozzle at 100 kPa for water, and the measurement that the test object remains operational after, not just dry. The salt-fog requirement (typically 96 hours per ASTM B117) is a separate rating that often pairs with IP67/IP68 on automotive and marine programs but sits outside the IP code itself; conflating the two is the most common spec-sheet error at incoming-quote review. Thermal shock cycling (-40°C to +125°C, 100 cycles) and humidity-cycling (85°C / 85% RH, 1000 hours) typically run in parallel for full qualification. The on-site environmental rack runs IPX7 immersion, salt-fog cabinet, and 1500 V AC HiPot leakage as a stacked sequence on every sealed-connector first article, with a written validation report on file. Quote inside 12 hours on any IP-rated program with the rating-validation report attached.

Tier-1 vs aftermarket part qualification

The connector counterfeit problem is the single audit gate that gray-market vendors fail, and it has gotten worse since 2022 as global connector lead times stretched. A drawing that calls out 'TE Connectivity 770680-1' gets sourced through one of three channels: brand-authorized distribution (Mouser, Digi-Key, Heilind, Avnet, TTI — full traceability and TE invoice), broker / aftermarket (commodity brokers selling reels of unknown provenance), or counterfeit (a Shenzhen sub-tier producing visually-identical parts with reduced plating thickness, off-spec polarization features, or substituted base resin). Counterfeit connectors pass drawing-level inspection: the photo looks right, the housing snaps into the mating connector, the crimp die works on the terminal. They fail at month nine in the field when the under-plated terminal corrodes, when the housing UV-degrades, or when the lock retention force drops below the 30 N gate. IATF 16949 §7.5.3 requires lot-level traceability for every component; gray-market connectors cannot satisfy this because the broker invoice does not chain back to the brand. Field-return economics make the math obvious: a $0.40 counterfeit terminal that triggers a 200-unit warranty replacement at $180 per service call wipes out three years of program margin, and regulatory exposure on automotive or medical end-markets is several multiples larger than that. Our Cavite policy is brand-authorized distribution only on every connector, with the invoice retained 7 years and barcoded into MES at receiving on the same shift the reel arrives. Each lot enters with the distributor packing list, manufacturer date code, and country-of-origin Form A; any reel failing the chain-of-custody check goes to a quarantine cage and never enters the production cell. The cost premium against gray-market is typically 4-12%; the program-level risk savings on a 50,000-unit annual program with field-return liability is 30-40× that premium. We will not source from broker channels even on customer push.