Cable Assembly · Hermetic Cable Assembly
Hermetic Cable Assembly: Engineered To IPC/WHMA-A-620 Class 3.
Hermetic 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 hermetic cable assembly Programs Slip.
Issue #01
Hermetic glass-to-metal seal hairline crack on thermal cycle
Standard glass-to-metal hermetic seals develop hairline cracks at -55 °C / +175 °C cycle, leaking through 1×10⁻⁶ atm·cc/s helium. Our matched-CTE Kovar / glass per MIL-STD-883 Method 1014 holds < 5×10⁻⁹.
Issue #02
Hermetic feed-through dielectric strength fail at 2 kV
Cheap epoxy-filled feed-throughs flash-over at 2 kV ATEX hi-pot per IEC 60079-7. Our glass-fired feed-through per MIL-DTL-32139 passes 5 kV without breakdown.
Issue #03
Hermetic pressure cycle fatigue at 1000 cycles 0-300 psi
Compression-seal hermetic connectors fatigue past 500 pressure cycles per ASTM E2375. Our brazed Kovar housing per MIL-STD-810 Method 500 passes 1,000 cycles 0-300 psi.
Issue #04
Hermetic helium leak past 1×10⁻⁹ atm·cc/s acceptance limit
Solder-fillet hermetic builds leak past the MIL-STD-883 §1014.A4 1×10⁻⁹ atm·cc/s acceptance limit. Our brazed Kovar + glass build holds < 1×10⁻¹⁰ on every assembly.
Issue #05
Hermetic pin gold-plate erosion on subsea swap cycle
Subsea hermetic gold-plate pins erode below 30 µin past 50 mate cycles per MIL-DTL-83513. Our 75 µin gold + selective-rhodium plate holds spec through 500 cycles.
What We Build
The Capability Stack Behind The Build.
Helium leak test 1×10⁻¹⁰ atm·cc/s per MIL-STD-883 Method 1014
VARIAN PD03 helium leak detector cert at 1×10⁻¹⁰ atm·cc/s per MIL-STD-883 Method 1014 condition A1. Pass-stamp on every hermetic assembly.
Matched-CTE Kovar / glass build per MIL-DTL-32139
Brazed Kovar housing + glass-fired feed-through per MIL-DTL-32139 — matched CTE for -55 °C / +175 °C MIL-STD-883 Method 1010 thermal cycle.
5 kV dielectric withstand per IEC 60079-7
5 kV / 60 s dielectric withstand cert per IEC 60079-7 ATEX on hermetic feed-throughs. Pass cert filed per assembly.
ASTM E2375 pressure-cycle 0-300 psi cert
1,000-cycle pressure-cycle 0-300 psi cert per ASTM E2375 on subsea / downhole hermetic builds. Family cert filed.
75 µin gold + selective-rhodium plating per MIL-DTL-83513
75 µin gold over nickel + selective rhodium plating on hermetic pins per MIL-DTL-83513. Plating thickness X-ray cert per lot.
Real Project Snapshot · Australia · earthmoving-equipment · 2023 → 2024
A Build We Already Shipped In This Lane.
Scenario
An Australian heavy machinery manufacturer requested quotes for multiple custom wire harness models but provided incomplete technical drawings at the initial inquiry stage.
Challenge
Missing critical specifications, including relay models, Deutsch connector models, and Hammond enclosure details, prevented accurate quoting and risked production errors for the 200-piece batch.
Outcome
Achieved full specification lock-down, enabling accurate quoting for 3 sample units and the 200-piece production run, preventing costly rework and material delays.
Anonymized customer detail. Concrete numbers preserved verbatim.
Lot-traceable material library with UL E-File reference
IATF 16949 + IPC/WHMA-A-620 Class 3, audited annually
TPE strain-relief library qualified at IP67 / IP68
FAQ
Procurement Questions, Answered.
Q.01What is the minimum order quantity for hermetic cable assembly?
+
What is the minimum order quantity for hermetic cable assembly?
Q.02What lead time do you commit to on hermetic cable assembly after RFQ?
+
What lead time do you commit to on hermetic cable assembly after RFQ?
Q.03Are hermetic cable assembly shipments duty-free into the US?
+
Are hermetic cable assembly shipments duty-free into the US?
Q.04Do you ship hermetic cable assembly samples for free?
+
Do you ship hermetic cable assembly samples for free?
Q.05Can you handle the hermetic cable assembly engineering review before we have a finalized drawing?
+
Can you handle the hermetic cable assembly engineering review before we have a finalized drawing?
Q.06Do you offer paid prototype builds? (Hermetic)
+
Do you offer paid prototype builds? (Hermetic)
Q.07How do you protect customer IP? (Hermetic)
+
How do you protect customer IP? (Hermetic)
Q.08Which certifications ship with lots? (Hermetic)
+
Which certifications ship with lots? (Hermetic)
Q.09What payment terms are typical? (Hermetic)
+
What payment terms are typical? (Hermetic)
Q.10How fast is DFM feedback? (Hermetic)
+
How fast is DFM feedback? (Hermetic)
Related Builds
Industries
Capabilities
Submit RFQ
Submit your Hermetic 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: UL Recognized component (https://en.wikipedia.org/wiki/UL_%28safety_organization%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 Hermetic 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.