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of high-performance wire,
cable and tubing since 1959
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Local: (661) 257-2400
SML is a film-coated magnet wire made with aromatic polyimide resin. It is a Class 240 insulation with exceptional resistance to chemical solvents and burn-out. It will operate at temperatures in excess of 240°C for intermittent duty. The outstanding thermoplastic flow of over 400°C and its ability to withstand excessive overloads extends the use of magnet wire in extreme conditions. SML is unaffected by prolonged exposure to varnish solvents and is compatible with most systems.

Typical Applications

Whenever high temperatures and extreme overload or ambient conditions are required, SML magnet wire may be used.
  • Fractional and integral horsepower motors
  • High temperature continuous duty coils and relays
  • Hermetic and sealed units
  • Heavy duty hand tool motors
  • Encapsulated coils
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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

MWRD15SML N/A 15 N/A 0.0571 in1.450 mm N/A 0.0015 in0.038 mm N/A 0.0594 in1.509 mm
MWRD16SML N/A 16 N/A 0.0508 in1.290 mm N/A 0.0014 in0.036 mm N/A 0.0531 in1.349 mm
MWRD17SML N/A 17 N/A 0.0453 in1.151 mm N/A 0.0014 in0.036 mm N/A 0.0475 in1.207 mm
MWRD18SML N/A 18 N/A 0.0403 in1.024 mm N/A 0.0013 in0.033 mm N/A 0.0424 in1.077 mm
MWRD19SML N/A 19 N/A 0.0359 in0.912 mm N/A 0.0012 in0.030 mm N/A 0.0379 in0.963 mm
MWRD20SML N/A 20 N/A 0.0320 in0.813 mm N/A 0.0012 in0.030 mm N/A 0.0339 in0.861 mm
MWRD21SML N/A 21 N/A 0.0285 in0.724 mm N/A 0.0011 in0.028 mm N/A 0.0303 in0.770 mm
MWRD22SML N/A 22 N/A 0.0253 in0.643 mm N/A 0.0011 in0.028 mm N/A 0.0270 in0.686 mm
MWRD23SML N/A 23 N/A 0.0226 in0.574 mm N/A 0.0010 in0.025 mm N/A 0.0243 in0.617 mm
MWRD24SML N/A 24 N/A 0.0201 in0.511 mm N/A 0.0010 in0.025 mm N/A 0.0217 in0.551 mm
MWRD245SML N/A 24-1/2 N/A 0.0190 in0.483 mm N/A 0.0010 in0.025 mm N/A 0.0206 in0.523 mm
MWRD25SML N/A 25 N/A 0.0179 in0.455 mm N/A 0.0009 in0.023 mm N/A 0.0194 in0.493 mm
MWRD255SML N/A 25-1/2 N/A 0.0169 in0.429 mm N/A 0.0009 in0.023 mm N/A 0.0184 in0.467 mm
MWRD26SML N/A 26 N/A 0.0159 in0.404 mm N/A 0.0009 in0.023 mm N/A 0.0173 in0.439 mm
MWRD265SML N/A 26-1/2 N/A 0.0150 in0.381 mm N/A 0.0009 in0.023 mm N/A 0.0164 in0.417 mm
MWRD27SML N/A 27 N/A 0.0142 in0.361 mm N/A 0.0008 in0.020 mm N/A 0.0156 in0.396 mm
MWRD275SML N/A 27-1/2 N/A 0.0134 in0.340 mm N/A 0.0008 in0.020 mm N/A 0.0148 in0.376 mm
MWRD28SML N/A 28 N/A 0.0126 in0.320 mm N/A 0.0008 in0.020 mm N/A 0.0140 in0.356 mm
MWRD285SML N/A 28-1/2 N/A 0.0119 in0.302 mm N/A 0.0008 in0.020 mm N/A 0.0132 in0.338 mm
MWRD29SML N/A 29 N/A 0.0113 in0.287 mm N/A 0.0007 in0.018 mm N/A 0.0126 in0.320 mm
MWRD295SML N/A 29-1/2 N/A 0.0106 in0.269 mm N/A 0.0007 in0.018 mm N/A 0.0119 in0.302 mm
MWRD30SML N/A 30 N/A 0.0100 in0.254 mm N/A 0.0007 in0.018 mm N/A 0.0112 in0.284 mm
MWRD305SML N/A 30-1/2 N/A 0.0095 in0.241 mm N/A 0.0007 in0.018 mm N/A 0.0107 in0.272 mm
MWRD31SML N/A 31 N/A 0.0089 in0.226 mm N/A 0.0006 in0.015 mm N/A 0.0100 in0.254 mm
MWRD315SML N/A 31-1/2 N/A 0.0084 in0.213 mm N/A 0.0006 in0.015 mm N/A 0.0096 in0.241 mm
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