Emphasis is placed on supplying reliable quality magnet wire that fully meets the customer’s requirements. FEMM’s magnet wire is conformed with the Japanese Industrial Standard (JIS) and the Underwriters Laboratories lnc. UL No E339329, E339330
Enameled Magnet Wire
Structure Of Enameled Wire
Several thin resin coatings are applied to the formed conductor, making it possible to select the type and thickness of coatings, as well as to combine resins having different functions if desired. As for the round conductor, rectangular shapes can be manufactured as well. Moreover, self-lubrication and surface treatment can be selected, in order to fit various coil winding processes.
General-Purpose Magnet Wire
This is the most common enameled wire. The coating thickness, static friction and others can be changed to suit users’ processes and applications.
| PRODUCT CODE | INSULATION | THERMAL CLASS | TEMPERATURE INDEX | APPLICATION | END PRODUCT (Example) |
| UEW | Polyurethane | E | 120 | Motor, Transformer , Coils | Audio amplifier transformer |
| UEWN | Polyurethane overcoated with polyamide | B | 130 | Motor, Transformer , Coils | Audio amplifier transformer |
| PEW | Polyester | F | 155 | Motor, Transformer , Coils, Generators | Alternator |
| PEWN | Polyurethane overcoated with polyamide | F | 155 | Motor, Transformer , Coils, Generators | Alternator |
Solderable Magnet Wire
This wire enables soldering of wire ends without removing the coating, thus simplifying coating-removing process.
| PRODUCT CODE | INSULATION | THERMAL CLASS | TEMPERATURE INDEX | APPLICATION | END PRODUCT (Example) |
| PSFW | Solderable modified Polyurethane | F | 155 | Motor, Transformer , Coils, Generators | Air pump, Washing machines |
| PSFWN (UEWN-80) | Solderable modified Polyurethane overcoated with polyamide | F | 155 | Motor, Transformer , Coils, Generators | Air pump, Washing machines |
Heat-Resistant Magnet Wire
The heat resistance is as high as 180℃ and over. Moreover, varieties of options are available to meet every requirement for enameled wires such as chemical resistance and processing resistance.
| PRODUCT CODE | INSULATION | THERMAL CLASS | TEMPERATURE INDEX | APPLICATION | END PRODUCT(Example) |
| AIEIW | Polyester imide overcoated with polyamide imide | H | 200 | Motor, Generators, Automotive parts | Compressor (Air-cond refrigerator) Alternator (stator) Magnet clutch, wiper power window |
| AIHPW | Modified Polyester overcoated with polyamide imide | H | 200 | Motor, Generators, Automotive parts | Compressor (Air-cond refrigerator) Alternator (stator) Magnet clutch, wiper power window |
| AIW | Polyamide imide | C | 220 | Motor, Generators, Automotive parts | Starter, Alternator wiper |
Refrigerant-Resistant Magnet Wire
This is a heat-resistant magnet wire specifically designed for use in refrigerator compressors. This wire is resistant against various refrigerants.
| PRODUCT CODE | INSULATION | THERMAL CLASS | TEMPERATURE INDEX | APPLICATION | END PRODUCT (Example) |
| HPWRII | Modified Polyester overcoated Polyamide imide | H | 200 | Motor | Compressor (Air-cond refrigerator) |
| EIWRII | Polyester imide overcoated Polyamide imide | H | 200 | Motor | Compressor (Air-cond refrigerator) |
Self-Bonding Magnet Wire
This wire bonds with each other by itself through heating. The coil shape can be maintained, making it possible in some cases to abolish the varnish impegration process.
| PRODUCT CODE | INSULATION | THERMAL CLASS | TEMPERATURE INDEX | APPLICATION | END PRODUCT (Example) |
| LOCKY | Self-bonding solderable Modified Polyester | F | 155 | Electronic parts, Automotive parts | Pump motor, AC generator |
| CEW | Cementing Polyamide imide | H | 200 | Electronic parts, Automotive parts | Pump motor, AC generator |
Triple Insulated Wire - Standard Type TEX-E
TEX-E is a solderable wire of single conductor and triple insulation layers. The layers are organized by heat resistant modified polyester and polyamide. FEMM’s magnet wire is conformed with the Japanese Industrial Standard (JIS Z8703, Underwriters Laboratories lnc. UL No E206440, Norges Elektriske Materiellkontroll (NEMKO), Canadian Safety Standard (CSA), British Standards Institution (BSI) and Verband der Elektrotechnik (VDE)
Production Size Range
0.20 mm – 1.00mm
Feature Of TEX-E Series
“TEX-E Series” save insulation tape or barrier tape between the primary and secondary coils and contribute to realize size and cost reduction or high efficiency of transformers. “TEX-E Series” paves the way to the sophisticated switching transformers.
The feature of TEX series is in its insulation layers. IEC standards require specified insulation between primary and secondary coils of transformers. And the standards do not accept general enameled wire as insulation therefore insulation tape or barrier tape are required in transformers using enameled wire. TEX series, however, has triple insulation layers which comply IEC requirement and therefore can be used without barrier tape or interlayer tape between primary and secondary coils.
Size comparison example of transformers between conventional and TEX applied.
Applied Commercial Devices & Instruments
| Information and Communication - Power adapters for PC - Chargers for Phones  | Audiovisual - LCD TV - Game  |
| Industrial - Automatic robot  | Lighting Driver for LED  |
| Solar power - Power Conditioner  | Medical MRI system  |
| Home Appliance - Air conditioner - Cosmetic appliance  |
Polyimide Tubing
Polyimide Tubing is a seamless tubing integrally formed only from polyimide resin alone, with no use of adhesives. It can be used for the insulation and covering of cables or cords in harsh environments where resin tubing had previously been unsuitable.
Advantages of Polyimide Tubing
Highest Heat Resistance
No degradation occurs at 220ºC in continuous service or at 400ºC for short periods. Safety.
UL-certified No.E58401 (PIT-S )
General Versatility
Polyimide resin is outstanding in adhesion and remains unaffected in chemicals (except alkalis) or radiation.
RoHS compliant.
Thinner Wall Thickness
It possesses voltage endurance characteristics equivalent to other types of resins such as fluororesins, but with a comparatively thinner wall thickness.
Easy Installation
Unitary polyimide tubing, being drag free and fairly rigid, allows easy feeding of wire through the inside.
Standard Product Type and Dimensions about Polyimide Tubing
- PIT-S 0.25×0.04
- PIT-S 0.40×0.04
- PIT-S 0.40×0.06
Designation of Product:
PIT-S inside diameter (in mm) x Wall thickness (in mm)
(Example: PIT-S 0.25 x 0.04)