Custom cable assembly

Molex cable assemblies, signal to power.

Pecko builds custom cable assemblies and harnesses on Molex connector families, from fine-pitch signal links to higher-current power leads, with terminals crimped, housings loaded, circuits wired to your drawing and every build tested to the plan agreed in your quote.

Black, blue and purple multi-pin connector housings on wires on a dark stone surface
Singapore · Malaysia · China
  • Since 1981Manufacturing experience, founded in Singapore
  • 25,000+Projects completed
  • 20Industries served
  • 3Factories in Singapore, Malaysia and China

Overview

What is a Molex cable assembly?

Molex makes a wide range of wire-to-board and wire-to-wire connector families, and a Molex cable assembly is wire terminated in one or more of them. Fine-pitch series such as PicoBlade suit low-level signals in compact products, KK is a long-standing choice for general board connections, and Micro-Fit and Mini-Fit handle higher currents for power distribution. Matching family, terminal and wire gauge to each circuit is what makes the assembly dependable.

  • Signal and power connector families
  • Wire-to-board and wire-to-wire styles
  • Positive latches and polarized housings
  • Mixed families in one harness

Features

Features of Molex assemblies

Molex families differ in pitch, current rating and locking style. These are the traits we match to your circuit when we plan each build.

  • Power-rated families

    Series such as Micro-Fit and Mini-Fit carry higher currents than fine-pitch signal connectors, making them a common choice for board and device power.

  • Fine-pitch signal options

    Compact series like PicoBlade fit crowded boards, carrying sensor, display and control signals in very little space.

  • Latching and polarization

    Many families add latches and polarized housings that keep connectors seated and stop them mating the wrong way.

  • Terminal position assurance

    On families that offer it, a TPA retainer locks terminals fully into the housing, guarding against push-back during mating.

Cut-away of a multi-core cable showing stranded copper conductors, colored insulation and an outer jacket

Capabilities

Our Molex assembly capabilities

A connector is only as reliable as the crimps behind it. We control every step, from wire prep to final test, in our own factories.

Wire cutting and stripping

Wire processed to the gauge, length and strip dimensions each Molex terminal calls for, from fine signal wire to heavier power conductors.

Terminal crimping

Terminals crimped with tooling matched to each family and wire size, with crimp height and pull force checked to your requirements.

Housing loading

Each terminal inserted into its correct cavity and locked in place, with TPA or CPA features engaged where the design uses them.

Multi-branch harnesses

Several Molex families, or Molex alongside other connectors, combined in one harness with branches, sleeving and labels laid out to your drawing.

Parts sourcing

Housings, terminals and wire sourced through our global and domestic supply channels, or from your approved vendor list when specified.

Testing to your plan

Continuity, polarity and pin-position checks, plus any other electrical tests set out in the test plan agreed in your quote.

Why Pecko

Why OEMs choose Pecko

A manufacturing partner should make your program simpler. These are the reasons customers bring their assemblies to Pecko, and keep them here.

  • Expertise and experience

    Wire harness and cable assembly work since 1981, across 20 industries and 25,000+ projects.

  • Quick turnarounds

    Clear quotes, confirmed schedules and regular updates, from the first prototype to every production release.

  • High flexibility

    Engineering changes, revisions and schedule shifts handled without starting your program over.

  • Cost-effectiveness

    Design-for-manufacture advice, global sourcing and efficient processes keep your unit cost down.

  • Small and large volumes

    From a handful of prototypes to high-volume production, with capacity across three factories.

  • Caring customer service

    A team that answers technical questions quickly and follows your program from quote to delivery.

Applications

Where Molex assemblies are used

With families for both signal and power, Molex connectors appear in a very wide range of electronic equipment.

  • Computing and servers

    Internal power and signal leads for motherboards, drives, fans and power supplies.

  • Home appliances

    Control-board and power wiring in washers, refrigerators, cooking equipment and HVAC units.

  • Industrial controls

    I/O and power connections inside drives, controllers, sensors and operator panels.

  • Automotive

    Wiring for body electronics, lighting modules and in-vehicle accessories and chargers.

  • Medical equipment

    Signal and power harnesses for patient monitors, diagnostic instruments and lab analyzers.

  • LED lighting

    Power and dimming leads connecting drivers to LED modules in commercial and architectural fixtures.

Quality

Quality built into every connection

Quality is designed into the process rather than inspected in at the end. Every program follows the same four steps, in an ISO-certified manufacturing environment.

  1. Agree the specification

    We review your drawing, materials and acceptance criteria with you before anything is built.

  2. Prove the first article

    A prototype or first article confirms fit, form and function before production starts.

  3. Build to documented processes

    Production follows documented work instructions at every step, from cutting to final assembly.

  4. Test before it ships

    Every order is tested against the plan agreed in your quote before it leaves the factory.

FAQ

Questions buyers ask

Can't find your answer? Send us your drawing and questions, and our engineers will come back to you.

Which Molex connector families can you build with?

Our work covers commonly specified Molex families such as Micro-Fit, Mini-Fit, PicoBlade and KK, and other series named on your drawing. Share the part numbers, or tell us the circuit count and current each line carries, and our engineers will recommend a suitable housing and terminal.

Can you combine Molex and other connectors in one harness?

Yes. Many harnesses mix a Molex power connector with signal connectors from other makers, or combine several Molex families. Send your drawing or a sample, and our engineers will review the connector choices and wiring before we quote.

How do you choose wire gauge for Molex power connectors?

Wire gauge depends on the current each circuit carries, the length of the run and the range the terminal accepts. If your drawing specifies the gauge, we build to it. If not, our engineers will review the load with you and suggest a gauge within the terminal's rated range.

How are Molex cable assemblies tested?

Each order is checked to the test plan agreed in your quote. Typical checks cover continuity, polarity and pin position, crimp height and pull-force sampling, and visual inspection of latches and housings against your drawing.