Heavy Formvar Round Magnet Wire
Magnet Wire
Formvar is a synthetic enamel composed of polyvinyl acetal and phenolic resins.
Formvar's hot oil resistance sets it apart from all other magnet wire insulations. The flexibility, adhesion and abrasion scrape resistance of Formvar film is excellent. Its electrical properties are very good and it is resistant to common solvents. While Formvar has been replaced in many applications, Formvar continues to be the recommended film insulation most commonly used in oil-filled transformers.
Typical Applications
For Use in Guitar Pickups
Formvar serves as an excellent choice of winding wire for pickup manufacturing companies and is chosen for it's resistance to common solvents (including sweat and other liquids that can find its way into a guitar's pickup). Heavy Formvar is used where top end brightness and note definition are desired, due to fewer windings than with thinner wire with more windings.
Formvar's hot oil resistance sets it apart from all other magnet wire insulations. The flexibility, adhesion and abrasion scrape resistance of Formvar film is excellent. Its electrical properties are very good and it is resistant to common solvents. While Formvar has been replaced in many applications, Formvar continues to be the recommended film insulation most commonly used in oil-filled transformers.
Typical Applications
- Oil-filled transformers
- Motors
- Random wound coils
- Solenoids
- Guitar Pickups
For Use in Guitar Pickups
Formvar serves as an excellent choice of winding wire for pickup manufacturing companies and is chosen for it's resistance to common solvents (including sweat and other liquids that can find its way into a guitar's pickup). Heavy Formvar is used where top end brightness and note definition are desired, due to fewer windings than with thinner wire with more windings.
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Item # |
AWG Size |
Nom. Bare Wire Diameter |
Min. Increase in Diameter Due to Film Coating |
Max. Overall Diameter of Film-Coated Wire |
---|---|---|---|---|
MWRD36HF | AWG Size N/A 36 | Nom. Bare Wire Diameter N/A 0.0050 in0.127 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0008 in0.020 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0063 in0.160 mm |
MWRD37HF | AWG Size N/A 37 | Nom. Bare Wire Diameter N/A 0.0045 in0.114 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0008 in0.020 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0057 in0.145 mm |
MWRD38HF | AWG Size N/A 38 | Nom. Bare Wire Diameter N/A 0.004 in0.102 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0007 in0.018 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0051 in0.130 mm |
MWRD39HF | AWG Size N/A 39 | Nom. Bare Wire Diameter N/A 0.0035 in0.089 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0006 in0.015 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0045 in0.114 mm |
MWRD40HF | AWG Size N/A 40 | Nom. Bare Wire Diameter N/A 0.0031 in0.079 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0006 in0.015 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0040 in0.102 mm |
MWRD42HF | AWG Size N/A 42 | Nom. Bare Wire Diameter N/A 0.0025 in0.064 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0004 in0.010 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0032 in0.081 mm |
MWRD43HF | AWG Size N/A 43 | Nom. Bare Wire Diameter N/A 0.0022 in0.056 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0004 in0.010 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0029 in0.074 mm |
MWRD44HF | AWG Size N/A 44 | Nom. Bare Wire Diameter N/A 0.002 in0.051 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0004 in0.010 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0027 in0.069 mm |
MWRD45HF | AWG Size N/A 45 | Nom. Bare Wire Diameter N/A 0.00176 in0.0447 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0004 in0.001 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0024 in0.0610 mm |
MWRD46HF | AWG Size N/A 46 | Nom. Bare Wire Diameter N/A 0.00157 in0.0399 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0003 in0.008 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0021 in0.0533 mm |
MWRD47HF | AWG Size N/A 47 | Nom. Bare Wire Diameter N/A 0.00140 in0.0356 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0003 in0.008 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0019 in0.0483 mm |
MWRD48HF | AWG Size N/A 48 | Nom. Bare Wire Diameter N/A 0.00124 in0.0315 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0002 in0.005 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.00170 in0.0432 mm |
MWRD4HF | AWG Size N/A 4 | Nom. Bare Wire Diameter N/A 0.2043 in5.189 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0037 in0.094 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.2098 in5.329 mm |
MWRD50HF | AWG Size N/A 50 | Nom. Bare Wire Diameter N/A 0.00099 in0.0251 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0002 in0.005 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0014 in0.0356 mm |
MWRD6HF | AWG Size N/A 6 | Nom. Bare Wire Diameter N/A 0.1620 in4.115 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0035 in0.089 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.1671 in4.244 mm |
MWRD9HF | AWG Size N/A 9 | Nom. Bare Wire Diameter N/A 0.1144 in2.906 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0032 in0.081 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.1189 in3.020 mm |
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