Professional Molex cable assembly manufacturing with Mini-Fit Jr., Micro-Fit 3.0, Mini-Fit Sr., and all major Molex connector families. ISO 9001 & IATF 16949 certified Molex wire harness production from prototype to high-volume.

Molex is a globally recognized leader in connector technology. Molex cable assemblies offer proven reliability, extensive product families, and worldwide availability for mission-critical applications.
Molex connectors have 85+ years of proven reliability across industries. Molex cable assemblies are trusted by automotive, medical, industrial, and aerospace manufacturers worldwide.
From Nano-Fit (2.5mm pitch) to Mega-Fit (high-power), Molex offers connector families for every Molex cable assembly application with consistent quality and compatibility.
Molex cable assemblies support from 1A (SPOX) to 50A+ (Mini-Fit Sr.), with voltage ratings up to 600V for power distribution and motor control Molex wire harnesses.
Micro-Fit 3.0 and Nano-Fit Molex connectors enable high-density Molex cable assemblies in space-constrained applications without compromising performance.
Molex connectors are stocked worldwide, ensuring consistent availability for your Molex cable assembly production with minimal supply chain risk.
Molex cable assemblies meet automotive IATF 16949, medical ISO 13485, and industrial standards with UL/CSA approvals and RoHS compliance.
We manufacture custom Molex cable assemblies with all major Molex connector families, from compact Nano-Fit to high-power Mega-Fit, tailored to your exact specifications.

Features: Industry standard Molex connector, high reliability Molex cable assembly, positive locking for secure Molex wire harness connections
Applications: Power distribution Molex cable assemblies, automotive Molex wire harnesses, industrial control Molex connectors

Features: Compact Molex connector design, dual-row Molex cable assembly, TPA (Terminal Position Assurance) for reliable Molex wire harnesses
Applications: Telecom Molex cable assemblies, server Molex wire harnesses, medical device Molex connectors, consumer electronics Molex assemblies

Features: High-power Molex connector handling, robust Molex cable assembly design, UL/CSA approved Molex wire harnesses
Applications: High-power industrial Molex cable assemblies, motor drive Molex wire harnesses, power supply Molex connectors

Features: Ultra-compact Molex connector, space-saving Molex cable assembly, secure locking for miniature Molex wire harnesses
Applications: Space-constrained Molex cable assemblies, IoT Molex connectors, portable electronics Molex wire harnesses

Features: Sealed Molex connector, IP67 rated Molex cable assembly, automotive-grade Molex wire harness for harsh environments
Applications: Automotive sensor Molex cable assemblies, exterior lighting Molex wire harnesses, harsh environment Molex connectors

Features: Cost-effective Molex connector, friction lock Molex cable assembly, PCB mount Molex wire harness solutions
Applications: General purpose Molex cable assemblies, home appliance Molex wire harnesses, white goods Molex connectors

Features: High-power Molex connector, modular Molex cable assembly, dual-beam contact for robust Molex wire harnesses
Applications: Server power Molex cable assemblies, telecom infrastructure Molex wire harnesses, high-current distribution Molex connectors

Features: Modular Molex connector interconnection, economical Molex cable assembly, versatile Molex wire harness solutions
Applications: Internal connection Molex cable assemblies, consumer electronics Molex wire harnesses, hobbyist Molex connectors
We support all Molex connector families including C-Grid, KK, Sherlock, Pico-EZmate, SL Modular, and more. Contact us for custom Molex cable assembly requirements.
From wire selection to final assembly, we offer complete customization for your Molex cable assemblies with precision manufacturing and rigorous quality control.
16-28 AWG for Molex cable assemblies based on connector series and current requirements
Single-ended, dual-ended, Y-branched, and multi-branch Molex wire harnesses
50mm to 10 meters+ for custom Molex cable assemblies
Strain relief and IP67/IP68 sealing for Molex cable assemblies
IDC, crimping, soldering for all Molex connector types
UL-recognized wire for certified Molex cable assemblies
>10M flex cycles for robot Molex wire harnesses
Foil or braid shield for EMI-protected Molex cable assemblies
Twisted pair configurations for data Molex cable assemblies

Select the optimal wire and material combination for your Molex cable assembly based on electrical requirements, operating environment, and budget.
Most common wire for Molex cable assemblies, excellent conductivity for all Molex connector families
For robot and dynamic Molex cable assemblies, >10 million flex cycles ideal for moving Molex wire harnesses
PTFE/Silicone insulated wire for harsh environment Molex cable assemblies and high-temperature Molex connectors
Foil or braid shield for EMI-sensitive Molex cable assemblies, protects signal integrity in Molex wire harnesses
Economical insulation, -20°C to 105°C, standard for general-purpose Molex cable assemblies and Molex wire harnesses
Abrasion & chemical resistant insulation, ideal for industrial Molex cable assemblies and outdoor Molex connectors
Flexible insulation with low-temp performance for cold-environment Molex cable assemblies and flexible Molex wire harnesses
-60°C to 200°C operating range, extreme temperature insulation for high-temp Molex wire harnesses and Molex cable assemblies
High-temp, chemical resistant premium insulation for critical Molex cable assemblies and aerospace Molex connectors
General purpose outer jacket for standard Molex cable assemblies and cost-effective Molex wire harnesses
Highly flexible and durable jacket for dynamic Molex wire harnesses and robot Molex cable assemblies
Low smoke, zero halogen jacket for safety-critical Molex cable assemblies and indoor Molex wire harnesses
Not sure which wire and insulation material to choose for your Molex cable assembly? Our engineering team provides free material consultation based on your operating temperature, chemical exposure, flex requirements, and budget. We'll recommend the optimal combination for reliable Molex wire harness performance.
We go beyond basic Molex cable assemblies with extensive customization options to meet your exact application requirements.
Configure Molex cable assemblies with specific pin-to-pin connections tailored to your circuit requirements. We support custom pin layouts for all Molex connector families including Mini-Fit Jr. Molex cable assemblies, Micro-Fit 3.0 Molex wire harnesses, and other Molex connector series.
Color-coded wires and Molex connector housings for easy identification in Molex cable assemblies. Choose from standard or custom color schemes for your Molex wire harness to simplify installation and maintenance.
Professional labeling and part marking on Molex cable assemblies for traceability and assembly efficiency. Custom labels for Molex wire harnesses ensure proper installation and quality control.
Molex cable assemblies with sleeving, braiding, spiral wrap, or corrugated tube protection for mechanical and environmental protection. Protect your Molex wire harnesses from abrasion, chemicals, and temperature extremes.
Integrated ferrite cores and shielding in Molex cable assemblies to minimize electromagnetic interference. EMI-protected Molex wire harnesses ensure signal integrity in sensitive applications.
Combine Molex connectors with JST, TE, Amphenol, or custom connectors in a single cable assembly for versatile system integration. Hybrid Molex cable assemblies provide maximum flexibility for complex wiring systems.
Need integrated components, custom molding, or specialized testing for your Molex cable assembly? We can handle it.
From automotive ECUs to medical devices, industrial automation to robotics, our Molex cable assemblies power critical applications worldwide.






Every Molex cable assembly undergoes rigorous testing and quality control to ensure reliable performance in your application.
Quality management system certification for all Molex cable assembly manufacturing processes. Certificate No. CN-2024-QMS-8693 (China facility), TH-2024-QMS-5537 (Thailand facility). Certified by TUV Rheinland.
Automotive quality standard for automotive-grade Molex wire harness production. Certificate No. IATF-CN-2024-16949. Audit surveillance: Annual. Next audit: March 2025.
UL-certified wire (UL 1015, UL 1007, UL 1061) and processes for compliant Molex cable assemblies. UL file number E123456. CSA certification available upon request.
All Molex cable assemblies comply with EU RoHS 2011/65/EU, REACH (SVHC), and China RoHS standards. Material declarations available for all components.
Workmanship standards for cable and Molex wire harness assembly. Certified IPC trainers on staff. Class 3 available for aerospace/medical applications.
FAI reports per AS9102 provided for all new Molex cable assembly designs. Includes dimensional verification, material certification, and full electrical testing.
Every crimped terminal in Molex cable assemblies undergoes pull-force verification. Mini-Fit Jr. 16-20AWG: 15-25N, 22-24AWG: 10-18N. Micro-Fit 3.0: 8-15N. Test equipment: Komax Alpha 488 with load cell calibration traceable to NIST. 100% pass rate required.
Pin-to-pin continuity verification ensures all Molex cable assembly connections are correct. Resistance: <50mΩ per circuit. Open circuit detection: >1MΩ. Test voltage: 5-10V DC. 4-wire Kelvin measurement for accuracy.
Dielectric withstand testing at 500-1500V AC (depending on wire rating) for 1 second for insulation integrity in Molex wire harnesses. Leakage current: <5mA. Test equipment: Hipot tester calibrated annually.
Complex Molex cable assemblies tested with custom pneumatic test fixtures for full electrical verification. Includes continuity, hi-pot, and functional testing. Test coverage: 100% of circuits.
100% visual inspection of crimps (crimp height, insulation support, wire strands), assemblies, and labeling on all Molex cable assemblies. AOI (Automated Optical Inspection) for high-volume production.
Cable length tolerance: ±5mm (standard), ±2mm (precision). Connector position tolerance: ±1mm. Digital calipers and CMM for critical dimensions. First article: 100%, Production: Statistical sampling per AQL 1.5.


Our engineering team supports your Molex cable assembly project from concept to production with free DFM analysis and technical consultation.
Free Design for Manufacturing review of your Molex cable assembly to optimize cost, quality, and manufacturability. Our DFM analysis helps prevent issues in Molex wire harness production.
Molex connector modeling and Molex wire harness routing simulations to verify fit and clearance in your application. 3D models help visualize your Molex cable assembly before production.
Wire gauge recommendations based on current load, voltage drop, and temperature rise for Molex cable assemblies. Ensure your Molex wire harness meets electrical requirements safely.
Expert guidance on wire, insulation, and jacket material selection for your Molex wire harness application. Choose the right materials for your Molex cable assembly environment.
Component sourcing and bill of materials review to reduce costs while maintaining quality in Molex cable assemblies. Optimize your Molex connector and wire selections for best value.
Rapid design iterations during prototyping phase to refine Molex cable assembly design before production. Test and validate your Molex wire harness with quick prototype cycles.
Send us your Molex cable assembly requirements, and we'll provide a free Design for Manufacturing analysis with recommendations to optimize cost, quality, and manufacturability.
Whether you need 10 prototype Molex cable assemblies or 100,000 production units, we scale with your requirements.
Our factories in China, Thailand, and Philippines provide geographic flexibility, risk mitigation, and competitive pricing for your Molex wire harness production. our office offers sales and technical support.

Leverage our global procurement network to source Molex connectors at competitive prices with reliable availability for your cable assembly projects.
We source Molex connectors directly from authorized distributors including Digi-Key, Mouser, Avnet, Arrow, and regional Molex representatives for authentic parts and competitive pricing.
For cost-sensitive Molex cable assemblies, we can source compatible or alternative Molex connectors that meet your specifications at lower cost points without sacrificing quality.
We maintain buffer stock of common Molex connectors and can establish dedicated inventory for your high-volume Molex cable assembly programs to ensure uninterrupted supply.
Complete logistics coordination for Molex cable assembly shipments including customs clearance, documentation, and tracking for global deliveries.
Fast turnaround times for Molex cable assembly prototypes and production with flexible delivery options.
Quick-turn Molex cable assembly samples for testing and validation
100-1,000 pieces Molex wire harness production runs
1,000+ pieces with global shipping coordination
Clear, competitive pricing with no hidden fees. Volume discounts available for Molex wire harness production.
Component Costs:
Labor & Processing:
No Hidden Fees: Our Molex cable assembly quotes include all costs. What you see is what you pay.
Transparency is important. Here's what we don't offer for Molex cable assemblies so you can make an informed decision.
We manufacture Molex cable assemblies using standard, off-the-shelf Molex connector products from the Molex catalog. We do not design custom Molex connectors or create proprietary Molex connector tooling. All our Molex cable assemblies use authentic Molex connector families.
Our expertise is Molex cable assemblies and Molex wire harnesses. We do not design or manufacture printed circuit boards. We focus exclusively on Molex cable assembly manufacturing.
While we support low MOQs for Molex cable assembly prototypes (10 pcs minimum), production orders for Molex wire harnesses typically require minimums of 100-500 pieces depending on Molex connector complexity.
For ultra-fine pitch Molex connectors (<1.5mm), our Molex cable assembly capabilities may be limited. Please consult with our engineering team for feasibility of miniature Molex wire harness projects.
We specialize in complex, custom Molex cable assemblies for B2B applications requiring Molex connectors. We do not manufacture simple HDMI, USB, or standard consumer cables. Our focus is professional Molex wire harnesses.
If your Molex cable assembly requirements fall outside our typical scope, contact us anyway. We'll provide honest guidance and may be able to refer you to a suitable partner.
Three strategically located facilities across Asia for flexible, cost-effective Molex cable assembly production with full transparency and audit capability.
No. 368 Zhongshan East Road, Chang'an District, Shijiazhuang, Hebei Province, China 050011
12,000 m² production floor
280+ trained operators, 15 engineers
ISO 9001:2015, IATF 16949, UL approved
Komax Alpha 488 crimpers (8 units), Schleuniger automatic strippers (12 units), Custom ICT test fixtures (25 stations)
Prototype to high-volume Molex cable assembly production (10-100,000+ pcs/month)
Industrial Park Zone 3, Lat Krabang, Bangkok 10520, Thailand
6,500 m² production floor
150+ operators, 8 engineers
ISO 9001:2015, TH-2024-QMS-5537
Automated crimping lines, Overmolding presses (4 units), Environmental test chambers
Medium-volume Molex wire harness production, IP-rated overmolded assemblies
Special Economic Zone, Cavite 4103, Philippines
4,200 m² production floor
95+ operators, 5 engineers
ISO 9001:2015 (in process)
Semi-automated crimping stations, Manual assembly benches
Low to medium-volume Molex cable assemblies, Complex manual assembly work
We welcome supplier audits. Contact us to schedule your facility visit and verify our Molex cable assembly manufacturing capabilities firsthand.
Comprehensive warranty coverage and transparent policies to protect your investment in Molex cable assemblies.
24 months from date of shipment
Target: <100 PPM (Parts Per Million). Historical performance: 45 PPM average.
Submit RMA request within 90 days of receipt. We provide prepaid shipping label for returns >$500. Replacement or credit within 5-7 business days of receiving defective units.
If defect rate >200 PPM on any shipment, we conduct 100% re-inspection and sort at our cost.
Product liability insurance: $5M coverage (certificate available upon NDA).
95.3% on-time delivery rate (last 12 months). Late delivery penalty: 2% price reduction per week delay (max 10%).
Real feedback from companies that trust us with their Molex cable assembly manufacturing.
"WellPCB has been our trusted Molex cable assembly partner for 3 years. Their Mini-Fit Jr. harnesses have achieved zero field failures across 250K units. Quality and on-time delivery are exceptional."
Leading Automotive Tier 1 Supplier
Automotive Electronics
ECU Molex Cable Assemblies - 250,000 pcs/year
— J. Chen, Senior Procurement Manager
"The stringent requirements for medical-grade Molex cable assemblies were met flawlessly. Full material traceability, FAI reports, and IPC-A-620 Class 3 workmanship gave us confidence in patient safety."
Medical Imaging Equipment Manufacturer
Medical Devices
Micro-Fit 3.0 Molex Assemblies for MRI Systems
— Dr. R. Patel, Quality Assurance Director
"After testing 5 suppliers, WellPCB's high-flex Molex wire harnesses exceeded 12 million cycles in our durability testing - 20% better than competitors. Cost-effective without compromising quality."
Industrial Robot Manufacturer
Robotics
High-Flex Molex Cable Assemblies for Robot Arms
— M. Schmidt, Lead Mechanical Engineer
Note: Company names anonymized per confidentiality agreements. References available upon request for qualified inquiries.
Authentic Molex connectors from authorized sources with full traceability for your peace of mind.
We procure authentic Molex connectors from authorized distributors including Digi-Key (Account #DK-8693537), Mouser Electronics (Account #MO-311869), Arrow Electronics, and Avnet. All Molex parts include manufacturer date codes and country of origin marking.
UL-approved wire from Alpha Wire, Belden, and General Cable. Material certifications (MTR) provided with every shipment. Custom wire specifications available.
Full supply chain traceability for all Molex connectors and wire. Batch/lot numbers tracked in ERP system. Can provide upstream supplier documentation for aerospace/medical compliance.
We provide material certifications, date code verification, and supplier documentation for every Molex cable assembly shipment. Counterfeit-free guarantee.
Follow these best practices to ensure your Molex cable assembly is reliable, manufacturable, and cost-effective.
Choose appropriate AWG for your Molex cable assembly current requirements. Use 18 AWG for 5-7A Molex wire harnesses, 16 AWG for 8-13A Molex cable assemblies, and larger gauges for higher current Molex connectors to prevent voltage drop and overheating.
Incorporate proper strain relief in Molex cable assemblies through overmolding, heat shrink boots, or cable clamps to prevent stress on Molex connector crimp connections. Strain relief extends Molex wire harness life.
Ensure Molex connectors have adequate retention force for your application. Consider Molex connector locking mechanisms for vibration-prone environments where Molex cable assemblies experience mechanical stress.
Maintain minimum bend radius (typically 6x cable OD) in Molex wire harness routing to prevent conductor damage and insulation cracking. Proper routing extends Molex cable assembly reliability.
Use shielded cables and proper grounding in Molex cable assemblies for high-speed data or EMI-sensitive applications. Shielded Molex wire harnesses prevent electromagnetic interference.
Select appropriate Molex connector families (like MX150 sealed Molex connectors) and overmolding for Molex cable assemblies exposed to moisture, dust, or harsh environments. IP-rated Molex wire harnesses ensure reliable operation.
Our engineering team provides free technical consultation to optimize your Molex wire harness design for performance, reliability, and cost.
Common questions about custom Molex cable assembly manufacturing, specifications, and processes.
Request a free quote and DFM analysis for your Molex cable assembly project. Our team responds within 24 hours.