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 |
---|---|---|---|---|
MWRD23HF | AWG Size N/A 23 | Nom. Bare Wire Diameter N/A 0.0226 in0.574 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0020 in0.051 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0253 in0.643 mm |
MWRD22HF | AWG Size N/A 22 | Nom. Bare Wire Diameter N/A 0.0253 in0.643 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0021 in0.053 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0281 in0.714 mm |
MWRD21HF | AWG Size N/A 21 | Nom. Bare Wire Diameter N/A 0.0285 in0.724 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0022 in0.056 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0314 in0.798 mm |
MWRD20HF | AWG Size N/A 20 | Nom. Bare Wire Diameter N/A 0.0320 in0.813 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0023 in0.058 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0351 in0.892 mm |
MWRD19HF | AWG Size N/A 19 | Nom. Bare Wire Diameter N/A 0.0359 in0.912 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0025 in0.064 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0391 in0.993 mm |
MWRD18HF | AWG Size N/A 18 | Nom. Bare Wire Diameter N/A 0.0403 in1.024 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0026 in0.066 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0437 in1.110 mm |
MWRD17HF | AWG Size N/A 17 | Nom. Bare Wire Diameter N/A 0.0453 in1.151 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0028 in0.071 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0488 in1.240 mm |
MWRD16HF | AWG Size N/A 16 | Nom. Bare Wire Diameter N/A 0.0508 in1.290 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0029 in0.074 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0545 in1.384 mm |
MWRD15HF | AWG Size N/A 15 | Nom. Bare Wire Diameter N/A 0.0571 in1.450 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0030 in0.076 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0609 in1.547 mm |
MWRD14HF | AWG Size N/A 14 | Nom. Bare Wire Diameter N/A 0.0641 in1.628 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 0.0682 in1.732 mm |
MWRD13HF | AWG Size N/A 13 | Nom. Bare Wire Diameter N/A 0.0720 in1.829 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0028 in0.071 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0757 in1.923 mm |
MWRD12HF | AWG Size N/A 12 | Nom. Bare Wire Diameter N/A 0.0808 in2.052 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0029 in0.074 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0847 in2.151 mm |
MWRD11HF | AWG Size N/A 11 | Nom. Bare Wire Diameter N/A 0.0907 in2.304 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0030 in0.076 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0948 in2.408 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 |
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 |
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 |
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