Multifilar® Magnet Wire

MWS Wire / Multifilar® Magnet Wire

Beyond Bifilar Wire:

MWS Multifilar® magnet wire allows you to have two or more parallel bonded magnet wires insulated and color coded to your specifications.

Where constant alignment of multiple strands is an advantage, Multifilar® magnet wire is the right choice. Its parallel-bonded, color-coded construction offers benefits for many applications.

Engineers should specify Multifilar® when concerned with space, weight, and reliability. Where consistent capacitance and impedance characteristics are required, Multifilar® magnet wire outperforms windings using two separate magnet wires.

Production users benefit from increased layer winding speeds, tighter windings that deliver more power in less space, reduced labor, and handling. Color coding assists in conductor identification and reduces termination errors.

A row of multiple colored pencils, including red, yellow, green, and blue, arranged in a parallel and uniform manner with sharpened ends.
Cover of the "Wired for your Success Technical Data Book" by MWS Wire Industries, featuring an image of a wire spool machine and multicolored wire samples at the bottom.

Multifilar® Magnet Wire Technical Data

Need more info about Multifilar® Magnet Wire? See the Data Sheet in our Tech Book.

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Product Spotlight

MWS Wire Industries custom manufactures Multifilar® magnet wire to assure flat, parallel construction in sizes AWG 16 and finer, and up to 20 conductors wide in some sizes.

Ten insulation colors are offered in polyurethane and poly-nylon films. Red, green, and natural are standard for all film types.

General Product Information

Code NumberInsulation TypeThermal ClassDielectric ConstantNEMA MW1000 DesignationAvailable Colors
1Polyurethane 1551553.70MW 79-CRed, Green, Natural, Blue, Yellow Black, Violet, Orange, White, Brown
1Polyurethane 1801803.70MW 82-CRed, Green, Natural, Blue, Yellow Black, Violet, Orange, White, Brown
2Poly-Nylon 1551553.81MW 80-CRed, Green, Natural, Blue, Yellow Black, Violet, Orange, White, Brown
2Poly-Nylon 1801803.81MW 83-CRed, Green, Natural, Blue, Yellow Black, Violet, Orange, White, Brown
4Polyester 2002003.82MW 74-CRed, Green, Natural, Black
5Armored Polyester2003.86MW 35-CRed, Green, Natural, Black
6Solderable Polyester*1803.76MW 77-CRed, Green, Natural, Black
7Formvar1057.40MW 15-CRed, Green, Natural, Black
8Polyimide (ML)2403.90MW 16-CRed, Green, Natural, Black

Bond Coat

Bond Code NO.Bonding Coat (Operating Temperature)Solvent*
1Polyvinyl Butyral (105°C)Alcohol
2Nylon (105°C)None
3Epoxy (130°C)MEK or Acetone
4Polyester (130°C)None
5Polyamide (165°C)None
6Polyimide (ML) (240°C)None

* Nylon & ML are thermoset insulations which do not activate with either heat or solvent.

** Bonding films can be softened and removed by immersion in the solvent noted, except nylon, polyester, polyamide, and ML which are non-soluble. Wiping with a soft cloth dampened with solvent may be necessary to separate wires. Finished wire thermal class based on the underlying enamel of the individual strand.

Part Ordering Numbering System

Special Processes

Wire is available in sizes 16 AWG and finer with the following options:

  • Plated
  • Can be made to resistance
  • Laser ablated reel-to-reel
  • Discrete lengths cut to size
  • Thermocouple wire, in two strands or even more
Two insulated electrical wires, one with red insulation and a copper conductor and the other with yellow insulation and a silver-colored conductor, are displayed side by side.