Commercial Grade Commercial Grade Metal Film Resistor Metal Film Resistor CMF Series Commercial Grade Metal Film Resistor Metal film resistor CMF Series Conformal coating Metal film resistor Power ratings from 1/8W to 3W Resistance range from 10 to 1M Conformal coating CMF Series Metal film resistor Power ratings from 1/8W to 3W NOT RECOMMENDED Conformal coating Power ratings from 1/8W to 3W Resistance range from 10 to 1M FOR NEW DESIGNS Resistance range from 10 to 1M Electrical Data Electrical Data Power Resistance Max. Max. Dielectric Tolerance TCR IRC Type Rating at Range Working Overload Withstanding (%) (ppm/C) 70C (W) (Ohms) Voltage (V) Voltage (V) Voltage (V) Power Resistance Max. Max. Dielectric Standard Size Tolerance TCR IRC Type Rating at Range Working Overload Withstanding CMF-1/8 0.125 (%) (ppm/C) 200 400 400 70C (W) (Ohms) Voltage (V) Voltage (V) Voltage (V) CMF-1/4 0.25 250 500 500 CMF-1/2 0.5 350 700 700 Standard Size 10 - 1M 1 100 CMF-1 1 500 1000 1000 CMF-1/8 0.125 200 400 400 CMF-2 2 500 1000 1000 CMF-3 3 500 1000 1000 CMF-1/4 0.25 250 500 500 CMF-1/2 0.5 350 700 700 Environmental Data 10 - 1M 1 100 Short-time overload R/R (0.5% + 0.05), with no evidence of mechanical damage. CMF-1 1 500 1000 1000 Dielectric withstanding voltage No evidence of ashover, mechanical damage, arcing or insulation breakdown. CMF-2 2 Terminal strength No evidence of mechanical damage. 500 1000 1000 Resistance to Soldering heat R/R (1% + 0.05), with no evidence of mechanical damage. CMF-3 3 500 1000 1000 Pulse Overload R/R (1% + 0.05), with no evidence of mechanical damage. Solderability Minimum 95% coverage. Resistance to solvent No deterioration of protective coating and markings. Temperature cycling R/R (1% + 0.05), with no evidence of mechanical damage. Environmental Data Load life in humidity Standard type: R/R 3% for <100K, 5% for 100K Load life Standard type: R/R 1.5% Flame retardant type: R/R 5% Short-time overload R/R (0.5% + 0.05), with no evidence of mechanical damage. Dielectric withstanding voltage No evidence of ashover, mechanical damage, arcing or insulation breakdown. General Note General Note IRC reserves the right to make changes in product speci cation without notice or liability. All infTT electrormation is subject to IRConics reserves the right to make changes in prs own data and is considered accurate at time of going to product specification without notice or liabilityint A subsidiary of All information is subject to TT electronics own data and is considered accurate at time of going to print. TT electronics plc IRC Advanced Film Division 4222 South Staples Street Corpus Christi Texas 78411 USA www.bitechnologies.com www.irctt.com www.welwyn-tt.com Terminal strength No evidence of mechanical damage. Telephone: 361 992 7900 Facsimile: 361 992 3377 Website: www.irctt.com CMF Series Issue May 2009 Sheet 1 of 3 TT electronics plc 07.13 Resistance to Soldering heat R/R (1% + 0.05), with no evidence of mechanical damage. Pulse Overload R/R (1% + 0.05), with no evidence of mechanical damage. Solderability Minimum 95% coverage. Resistance to solvent No deterioration of protective coating and markings. Temperature cycling R/R (1% + 0.05), with no evidence of mechanical damage. Load life in humidity Standard type: R/R 3% for <100K, 5% for 100K Load life Standard type: R/R 1.5% Flame retardant type: R/R 5% General Note IRC reserves the right to make changes in product speci cation without notice or liability. All information is subject to IRCs own data and is considered accurate at time of going to print. A subsidiary of TT electronics plc IRC Advanced Film Division 4222 South Staples Street Corpus Christi Texas 78411 USA Telephone: 361 992 7900 Facsimile: 361 992 3377 Website: www.irctt.com CMF Series Issue May 2009 Sheet 1 of 3Commercial Grade Commercial Grade Metal Film Resistor Metal Film Resistor CMF SeriesNOT RECOMMENDED FOR NEW DESIGNS Physical Data d D H LH Dimensions (mm) IRC Type D (max.) L (max.) d (0.02) H (3) Standard Size CMF-1/8 1.85 3.5 0.5 28 CMF-1/4 2.5 6.8 0.6 28 CMF-1/2 3.5 10.0 0.6 28 CMF-1 5.0 12.0 0.7 28 CMF-2 5.5 16.0 0.8 28 CMF-3 6.5 17.5 0.8 28 IRC Advanced Film Division 4222 South Staples Street Corpus Christi Texas 78411 USA Telephone: 361 992 7900 Facsimile: 361 992 3377 Website: www.irctt.com CMF Series Issue May 2009 Sheet 2 of 3 General Note TT electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT electronics own data and is considered accurate at time of going to print. www.bitechnologies.com www.irctt.com www.welwyn-tt.com TT electronics plc 07.13