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.
1 2
Item # |
AWG Size |
Nom. Bare Wire Diameter |
Min. Increase in Diameter Due to Film Coating |
Max. Overall Diameter of Film-Coated Wire |
---|---|---|---|---|
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
MWRD35HF | AWG Size N/A 35 | Nom. Bare Wire Diameter N/A 0.0056 in0.142 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0009 in0.023 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0070 in0.178 mm |
MWRD34HF | AWG Size N/A 34 | Nom. Bare Wire Diameter N/A 0.0063 in0.160 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0010 in0.025 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0078 in0.198 mm |
MWRD33HF | AWG Size N/A 33 | Nom. Bare Wire Diameter N/A 0.0071 in0.180 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0011 in0.028 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0088 in0.224 mm |
MWRD32HF | AWG Size N/A 32 | Nom. Bare Wire Diameter N/A 0.0080 in0.203 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0012 in0.030 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0098 in0.249 mm |
MWRD31HF | AWG Size N/A 31 | Nom. Bare Wire Diameter N/A 0.0089 in0.226 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0013 in0.033 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0108 in0.274 mm |
MWRD30HF | AWG Size N/A 30 | Nom. Bare Wire Diameter N/A 0.0100 in0.254 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0014 in0.036 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0119 in0.302 mm |
MWRD29HF | AWG Size N/A 29 | Nom. Bare Wire Diameter N/A 0.0113 in0.287 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0015 in0.038 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0133 in0.338 mm |
MWRD28HF | AWG Size N/A 28 | Nom. Bare Wire Diameter N/A 0.0126 in0.320 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0016 in0.041 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0147 in0.373 mm |
MWRD27HF | AWG Size N/A 27 | Nom. Bare Wire Diameter N/A 0.0142 in0.361 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0016 in0.041 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0164 in0.417 mm |
MWRD26HF | AWG Size N/A 26 | Nom. Bare Wire Diameter N/A 0.0159 in0.404 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0017 in0.043 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0182 in0.462 mm |
MWRD25HF | AWG Size N/A 25 | Nom. Bare Wire Diameter N/A 0.0179 in0.455 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0018 in0.046 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0203 in0.516 mm |
MWRD24HF | AWG Size N/A 24 | Nom. Bare Wire Diameter N/A 0.0201 in0.511 mm | Min. Increase in Diameter Due to Film Coating N/A 0.0019 in0.048 mm | Max. Overall Diameter of Film-Coated Wire N/A 0.0227 in0.577 mm |
1 2