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Single Formvar Round 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 ApplicationsOil-filled transformersMotorsRandom wound coilsSolenoids

Product # AWG Size Nom. Bare Wire Diameter Min. Increase in Diameter Due to Film Coating Max. Overall Diameter of Film-Coated Wire
MWRD50SF50 0.00099 in
0.0251 mm		0.0001 in
0.003 mm		0.00120 in
0.0305 mm
MWRD46SF46 0.00157 in
0.0399 mm		0.0002 in
0.005 mm		0.00200 in
0.0508 mm
MWRD45SF45 0.00176 in
0.0447 mm		0.0002 in
0.005 mm		0.00220 in
0.0559 mm
MWRD44SF44 0.002 in
0.051 mm		0.0002 in
0.005 mm		0.0024 in
0.0610 mm
MWRD42SF42 0.0025 in
0.064 mm		0.0002 in
0.005 mm		0.0030 in
0.076 mm
MWRD41SF41 0.0028 in
0.071 mm		0.0002 in
0.005 mm		0.0033 in
0.084 mm
MWRD40SF40 0.0031 in
0.079 mm		0.0003 in
0.008 mm		0.0037 in
0.094 mm
MWRD34SF34 0.0063 in
0.160 mm		0.0005 in
0.013 mm		0.0072 in
0.183 mm
MWRD39SF39 0.0035 in
0.089 mm		0.0003 in
0.008 mm		0.0041 in
0.104 mm
MWRD38SF38 0.004 in
0.102 mm		0.0003 in
0.008 mm		0.0047 in
0.119 mm
MWRD33SF33 0.0071 in
0.180 mm		0.0005 in
0.013 mm		0.0081 in
0.206 mm
MWRD32SF32 0.0080 in
0.203 mm		0.0006 in
0.015 mm		0.0091 in
0.231 mm
MWRD31SF31 0.0089 in
0.226 mm		0.0006 in
0.015 mm		0.0100 in
0.254 mm
MWRD26SF26 0.0159 in
0.404 mm		0.0009 in
0.023 mm		0.0173 in
0.439 mm
MWRD25SF25 0.0179 in
0.455 mm		0.0009 in
0.023 mm		0.0194 in
0.493 mm
MWRD23SF23 0.0226 in
0.574 mm		0.0010 in
0.025 mm		0.0243 in
0.617 mm
MWRD17SF17 0.0453 in
1.151 mm		0.0014 in
0.036 mm		0.0475 in
1.207 mm
MWRD21SF21 0.0285 in
0.724 mm		0.0011 in
0.028 mm		0.0303 in
0.770 mm
MWRD195SF19-1/2 0.0339 in
0.861 mm		0.0012 in
0.030 mm		0.0358 in
0.912 mm

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