Cable Assembly · Coaxial Cable Assembly
Coaxial Cable Assembly: Engineered To IPC/WHMA-A-620 Class 3.
Coaxial Cable Assembly programs built on the Cavite floor — UFLPA-clean Philippine origin, Section 301 tariff-free, IPC/WHMA-A-620 Class 3 acceptance by default. Send the drawing or part number and we will reply with unit price, lead time, and a sample plan inside 12 hours.
Buyer Reality
Where Most coaxial cable assembly Programs Slip.
Issue #01
VSWR drift past 1.5:1 at 6 GHz post-flex
Generic coax assemblies pass at 1.2:1 fresh, then climb to 1.7:1 after 200 flex cycles when the centre conductor solder joint cracks. Our crimp + solder hybrid termination per IEC 61169-1 holds VSWR ≤ 1.4:1 through 1,000 flex cycles.
Issue #02
RG316 jacket cold-flow at 105 °C exposing dielectric
FEP-skinned RG316 cold-flows under sustained 105 °C, pinching the dielectric and walking impedance off 50 Ω. We spec PTFE-tape dielectric with FEP outer per MIL-DTL-17 §3.4 for engine-bay and downhole programs.
Issue #03
Insertion loss climbs 0.4 dB/m past spec at 12 GHz
Tin-plated centre conductors oxidise inside the dielectric and add 0.4 dB/m loss at 12 GHz inside 18 months. We hold silver-plated copper-clad steel stock per MIL-C-17 with first-article loss data archived per lot.
Issue #04
Phase-match pair drift > 5 ° between A/B legs at 6 GHz
Beam-forming arrays need ≤ 3 ° phase match across pair. Cable cut on a length jig only is not enough — we phase-trim each pair on a Keysight P5024A VNA before connectorising and ship with the phase-match cert.
Issue #05
Crimp ferrule cracks RG214 braid at 90 ° boot exit
Hex-crimp on RG214 braid plus a sharp boot exit splits the braid and shorts the shield to chassis at vibration. Our die set per MIL-DTL-39012 with 0.255" hex over a strain-relief boot eliminates the failure on 3 customer programs.
What We Build
The Capability Stack Behind The Build.
VNA-verified VSWR per assembly to 18 GHz
Keysight P5024A VNA on every coax build — return loss, insertion loss, phase. S-parameters archived per serial against IPC/WHMA-A-620 §10.7 acceptance limits, retained 7 years.
TDR sweep with archived S-parameters per lot
Tektronix DSA8300 TDR with 35 ps step sweeps every coax assembly. Impedance trace plotted with ±2 Ω band against the drawing call-out; out-of-band lots locked in MES.
Silver-plated centre conductor stock per MIL-C-17
RG178/RG316/RG214/LMR-240 ranges in silver-plated copper or copper-clad steel per MIL-C-17 §3.7. Mill cert plus oxide check on every reel.
Crimp die library to MIL-DTL-39012 hex profiles
DMC AF8 / M22520 frame crimp library across SMA, BNC, TNC, N-type to MIL-DTL-39012 hex spec. Go/no-go gauge on every shift change.
Phase-match pair trimming on Keysight P5024A
Phase-match pair build cell with Keysight P5024A — pair-to-pair trim ≤ 3 ° at 6 GHz, ≤ 5 ° at 18 GHz, certified at the pair level not the cable level.
Real Project Snapshot · US · automotive · 2026-Q1
A Build We Already Shipped In This Lane.
Scenario
A US commercial EV manufacturer reported a quality escape where a specific harness was built with an incorrect connector.
Challenge
The specified part number for connector C49C-F (DTCE06-1-8S-E003) was swapped for a different component, causing a specification mismatch and halting the customer's assembly line.
Outcome
Resolved the quality escape rapidly; the customer continued placing high-volume production orders despite the initial setback, demonstrating restored trust.
Anonymized customer detail. Concrete numbers preserved verbatim.
Komax + Schleuniger crimp cells with 100% CFM
Lot-traceable material library with UL E-File reference
Section 301 tariff-free origin under GSP/RCEP frameworks
FAQ
Procurement Questions, Answered.
Q.01What is the minimum order quantity for coaxial cable assembly?
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What is the minimum order quantity for coaxial cable assembly?
Q.02What lead time do you commit to on coaxial cable assembly after RFQ?
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What lead time do you commit to on coaxial cable assembly after RFQ?
Q.03Are coaxial cable assembly shipments duty-free into the US?
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Are coaxial cable assembly shipments duty-free into the US?
Q.04Do you ship coaxial cable assembly samples for free?
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Do you ship coaxial cable assembly samples for free?
Q.05Can you handle the coaxial cable assembly engineering review before we have a finalized drawing?
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Can you handle the coaxial cable assembly engineering review before we have a finalized drawing?
Q.06What packaging protects this build? (Coaxial)
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What packaging protects this build? (Coaxial)
Q.07Can you support PPAP Level 3? (Coaxial)
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Can you support PPAP Level 3? (Coaxial)
Q.08How are common failures screened? (Coaxial)
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How are common failures screened? (Coaxial)
Q.09What warranty and RMA window applies? (Coaxial)
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What warranty and RMA window applies? (Coaxial)
Q.10Are tooling fees required? (Coaxial)
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Are tooling fees required? (Coaxial)
Related Builds
Industries
Capabilities
Submit RFQ
Submit your Coaxial Cable Assembly drawing.
Send the drawing, BOM, or part number plus annual volume. Engineering desk replies within 12 hours with unit price, lead time, sample plan, and Form A certificate-of-origin specimen if you need GSP filing assistance. Standards reference: IPC standards (https://en.wikipedia.org/wiki/IPC_%28electronics%29), IATF 16949 (https://en.wikipedia.org/wiki/ISO/TS_16949).
Reviewed by Hommer Zhao- Cavite-based wire harness engineer at XUDONG, IPC/WHMA-A-620 Class 3 trained, 8+ years in automotive & medical harness manufacturing.
Next Step
Ready For Your Coaxial Cable Assembly Quote?
Send the drawing, BOM, or part number. We reply within 12 hours with unit price, lead time, and a sample plan. Quote returned within 12 hours. NDA on file. No obligation.