TL;DR: Samtec cable assemblies skal sourches som connector, pinout og testplan samlet
- Start med NDA, drawing control, connector part number, pin map og cable length før prisforhandling.
- Samtec connector builds kræver tydelige regler for mating side, strain relief, crimp accept og substitutions.
- IPC-A-620, UL-758 og IATF 16949 giver et bedre release-sprog end “build per sample”.
- RFQ'en bør kræve 100% continuity, first article photos, lot traceability og change approval før shipment.
A North American 3D vision and industrial measurement OEM required strict intellectual property protection before engaging with a contract manufacturer for custom cable assemblies. The challenge was a 3-month vetting phase before technical specifications could be shared; when the drawings were released, the quote package included 1x20 Pin Samtec connector, 1x10 Pin Samtec connector, 100mm cable length and a requested 4-week lead time.
A Samtec connector cable assembly is a custom cable build that uses Samtec interconnect hardware and a controlled wire list, pinout, length, strain relief and electrical test record. Connector sourcing is the supplier process for confirming exact part numbers, alternates, lead time, MOQ and lifecycle risk before production. Pinout control is the documented mapping from connector cavity to conductor, shield, drain or paired signal, verified by drawing review and electrical test.
Denne guide er skrevet til design engineers, sourcing teams og NPI quality engineers, der er i RFQ-, prototype- eller supplier qualification-stadiet for custom cable assembly. Rollen er senior factory engineer med mere end 20 års erfaring i connectorized cable assembly, wire harness production og supplier release for industrial, medical, robotics og measurement OEMs. Objective er at vise, hvordan du køber en Samtec-based assembly uden at tabe tid på NDA, connector ambiguity, pinout mismatch eller test gaps. Key result er en sourcing model med standards, konkrete RFQ-felter og releasekriterier.
— Hommer Zhao, Grundlegger & CEO: Når en kunde beder om en 100mm assembly med 20-pin og 10-pin Samtec connectors, er den største risiko ofte ikke cable length. Det er om pinout, mating view og connector revision er låst før crimping starter.
Hvorfor Samtec cable assembly RFQ'er fejler tidligt
En Samtec connector kan være en stærk komponentfamilie, men en cable assembly RFQ fejler hurtigt, hvis connector part number behandles som hele specifikationen. Factoryen skal vide mating side, orientation, cable exit direction, wire gauge, insulation OD, shield treatment, latch clearance, keying, polarization, strain relief og test access. Hvis en drawing kun viser “Samtec 20-pin to Samtec 10-pin, 100mm,” kan quoting-teamet ikke afgøre, om der er plads til bend radius, label, heat shrink eller fixture probing.
Den svage specifikation er “make cable per prototype sample.” Den konkrete substitution er: “Build 100mm cable assembly, connector A exact manufacturer part number and revision, connector B exact manufacturer part number and revision, pin 1 orientation shown from mating face, wire list by cavity, strip length, crimp terminal part number, jacket or discrete wire type, minimum bend radius 8 x cable OD, 100% continuity and short test, first article photo set, no connector substitution without written approval.” Tallene skal matche dit design, men strukturen gør quote og release målbar.
For prototype cable assemblies kan en supplier godt starte med incomplete data, men kun hvis assumptions er markeret tydeligt. For production release bør assumptions fjernes eller godkendes i en drawing revision. Den forskel er kritisk, når NDA-processen allerede har brugt måneder, og sourcing-teamet forventer hurtig quote efter file release.
Sourcing flow fra NDA til 4-week lead time
I 3D vision-sagen kunne tekniske filer ikke deles før NDA og vendor approval var på plads. Det er normalt for measurement, vision, robotics og medical programs, hvor connector layout, enclosure envelope og cable routing kan afsløre produktarkitektur. Efter NDA'en var underskrevet, havde engineering-teamet brug for en hurtig, men kontrolleret review: exact Samtec connector, wire length, branch direction, pinout, test method and quote assumptions.
Et godt flow har 5 gates. Gate 1 er NDA og secure file channel. Gate 2 er connector identification: exact part number, terminal family, mating half, lifecycle status and approved alternates. Gate 3 er manufacturability: wire gauge, crimp tooling, bend radius, cable length tolerance, label and strain relief. Gate 4 er test release: continuity, shorts, resistance if needed, shield continuity and visual acceptance. Gate 5 er commercial release: MOQ, lead time, tooling or fixture cost, packaging and change-control rules.
Hvis kunden har en 4-week lead time target, connector availability skal afklares samme dag som drawings modtages. En quote er ikke reel, hvis connector lead time er 10 uger, eller hvis terminal applicator ikke er tilgængelig. Vi markerer derfor long-lead connectors, crimp tooling gaps og alternate-source questions i quote assumptions, så sourcing kan beslutte om de vil approve alternates eller vente på exact parts.
— Hommer Zhao, Grundlegger & CEO: En 4-week lead time er kun realistisk, når connector stock, crimp tooling og test fixture kan bekræftes i RFQ-ugen. Hvis et af de tre punkter er åbent, skal lead time kaldes en assumption.
Sammenligning: hvad du skal låse i RFQ'en
| RFQ-punkt | Minimum input | Factory check | Risiko hvis det mangler | Release evidence |
|---|---|---|---|---|
| Connector identity | Exact Samtec part number, revision and mating face | Stock, lifecycle, terminal family and mating half | Wrong pitch, keying or terminal system | Approved BOM and incoming part record |
| Pinout map | Cavity-to-wire table and pin 1 view | Continuity fixture program and drawing review | Mirrored wiring or swapped signal pair | 100% open/short report by serial or lot |
| 100mm length | Measurement points and tolerance, such as +/-2 mm | Cut length, strip allowance and final assembly check | Too short after strain relief or routing bend | First article dimensional record |
| Crimp process | Wire gauge, terminal, applicator and crimp height target | Pull test, conductor brush and insulation support | Intermittent contact under vibration | IPC-A-620 visual accept plus pull evidence |
| Strain relief | Heat shrink, boot, overmold or clamp requirement | Bend radius, adhesive witness and cable exit direction | Terminal stress near connector exit | Bend check and photo evidence |
| Traceability | Lot ID, connector date code and operator/test record | Label plan and traveler record | No containment path after field issue | IATF 16949-style lot history |
Tabellen viser, at en connectorized assembly skal sourches som en process package, ikke kun en BOM line. For crimping capability betyder det crimp height, pull-force evidence and terminal compatibility. For cable testing betyder det test fixture, pin map revision and report retention. For cable assembly manufacturer qualification betyder det secure handling of customer drawings plus practical lead-time transparency.
Standarder og accept-sprog til connectorized cable assemblies
IPC-A-620 via IPC giver et fælles workmanship-sprog for cable and wire harness assemblies, including conductor damage, crimp accept, insulation support, soldered wire connections and visual acceptance classes. I en Samtec assembly bør drawing stadig angive konkrete limits: crimp height, pull-force target, exposed conductor allowance, heat-shrink overlap and inspection frequency. Standardreference uden tal er ikke nok til production release.
UL-758 via UL er relevant, når wire style, voltage rating, temperature rating and insulation material skal fastholdes gennem sourcing. En alternate wire kan ændre OD, flexibility, flame rating and crimp barrel fill selv når conductor gauge ser korrekt ud. For supplier quality kan IATF 16949 bruges som reference for traceability, change control, reaction plans and lot records, også når programmet ikke er automotive.
Hvis kunden kræver certificeret management system, kan ISO 9001 via ISO 9000 bruges som public reference for quality management context. Det erstatter ikke part approval. Det hjælper sourcing med at stille de rigtige spørgsmål: hvem må ændre connector alternate, hvordan låses test-program revisionen, hvor længe gemmes records, og hvilke changes kræver customer approval før shipment.
Design data der sparer dage i engineering review
Connector, terminal og mating view
Send exact connector part numbers, mating connector if known, terminal part numbers, coding or polarization, locking feature and pin 1 definition. Mark whether the drawing view is from mating face, wire-entry side or assembly top view. Mange pinout errors kommer fra mirrored views, ikke fra dårlig workmanship. For a 20-pin to 10-pin assembly bør pin map vise unused cavities, commoned pins and any shield or drain connection.
Length, routing og strain relief
For a 100mm cable length, measurement points matter. Er det connector face to connector face, overmold shoulder to shoulder, wire exit to wire exit or total end-to-end? Angiv tolerance, minimum bend radius, cable exit angle, label position and keep-out zones. Hvis assemblyen sidder i a compact 3D vision housing, 5 mm label shift or a stiff heat shrink can block installation even when electrical test passes.
Test fixture, records og containment
100% continuity and short testing bør være minimum. For differential signals, RF-ish interfaces or shielded bundles kan resistance, shield continuity or functional fixture checks være relevant. Reporten bør gemme drawing revision, test-program revision, connector lot, operator, date and pass/fail status. Når en supplier kan isolate a failed lot by connector batch and test record, containment takes hours instead of days.
— Hommer Zhao, Grundlegger & CEO: På korte 100mm assemblies kan 2 mm length tolerance, heat-shrink position og pin 1 view afgøre om delen passer i produktet. Elektrisk “pass” alene fortæller ikke om cable routing fungerer.
Supplier qualification uden at miste IP control
NDA-gated projects kræver en anden cadence end open RFQs. Før drawings deles, bør supplier kunne levere company profile, quality certifications, factory capability, connector handling process, secure file workflow and contact ownership. Efter NDA bør supplier svare med a controlled question list, ikke kun price. Gode spørgsmål er tegn på lavere risk: “Which side defines pin 1?”, “Is connector substitution allowed?”, “What is the length tolerance?”, “Do you require serialized test reports?”, “Can we use adhesive heat shrink at both exits?”
For certifications and quality systems bør buyer ikke stoppe ved certificate copies. Spørg efter how records connect to the actual assembly: incoming connector inspection, terminal storage, crimp setup approval, first-piece inspection, ESD handling if required, and shipment label. Hvis customer IP er sensitive, begræns file access to project engineers and quote owner, and keep uncontrolled screenshots out of messaging apps.
Den svageste section i mange sourcing docs er “quality: standard.” Den bør omskrives til: “Supplier shall build to drawing revision B, IPC-A-620 Class 2 unless otherwise stated, use UL-758 rated wire style listed in BOM, perform 100% continuity/short test, retain test record for 24 months, notify customer before connector, terminal, wire, tooling or test-program substitution.” Den tekst giver purchasing, engineering and quality one shared release basis.
FAQ
Q: What information is needed to quote a Samtec connector cable assembly?
Send exact connector part numbers, mating view, pinout table, wire gauge, cable length such as 100mm with tolerance, strain relief requirement, annual volume and test plan. Add IPC-A-620 workmanship class and UL-758 wire rating if they apply.
Q: How do you prevent pinout errors on 20-pin to 10-pin assemblies?
Use a cavity-to-cavity table, define pin 1 from the mating face, require drawing review before build, and run 100% continuity and short testing. For a 20-pin to 10-pin design, unused cavities and commoned pins should be visible in the test program.
Q: Can a supplier quote before NDA approval?
A supplier can provide capability, quality system and rough commercial assumptions before NDA, but exact quoting usually needs drawings. In the case above, the technical package followed a 3-month vetting phase and then moved to a 4-week lead-time quote.
Q: Which standards should appear on a connector cable assembly drawing?
Use IPC-A-620 for cable and harness workmanship, UL-758 for wire style and rating control, and IATF 16949-style change control when traceability is needed. The drawing still needs numerical limits for length, crimp and test acceptance.
Q: What test evidence should be shipped with prototype cable assemblies?
At minimum, include 100% continuity and short-test results, first article photos and dimensional check for length. For high-risk prototypes, add pull-force data, connector lot information and a retained sample tied to the drawing revision.
Q: When is connector substitution acceptable?
Connector substitution is acceptable only with written approval after checking mating compatibility, pitch, keying, terminal system, wire gauge range and lead time. For NDA-controlled projects, substitutions should be logged before any production shipment.
Vil du sourche en Samtec connector cable assembly?
NorKab kan gennemgå NDA flow, Samtec connector part numbers, pinout, 100mm or custom cable length, strain relief, crimping, test fixture and release records before prototype or production. Kontakt NorKab med drawing, connector datasheets, expected volume and lead-time target, så hjælper vi med en quote-ready package for din custom cable assembly.
