CMO Series Commercial Grade Metal Oxide Resistor * * * * * * IRC Wire and Film Technologies Division Power ratings from 1/4W to 9W Stable performance in harsh environments Superior flame retardant coating High purity ceramic core Meets EIA-RC2655A requirements Non-inductive type available Specifications IRC Type Power Rating at 70C (W) Resistance Range* (Ohms) Tolerance (%) CMO-1/4 0.25 0.3 - 50K CMO-1/2 0.5 CMO-1 TCR (ppm/C) Max. Working Voltage (V) Max. Overload Voltage (V) Dielectric Withstanding Voltage (V) 2, 5, 10 250 400 250 0.3 - 50K 2, 5, 10 250 400 250 1 0.3 - 50K 2, 5, 10 350 600 350 CMO-2 2 0.3 - 50K 2, 5, 10 350 600 350 CMO-3 3 5 - 100K 2, 5, 10 500 800 500 CMO-5 5 5 - 150K 2, 5, 10 750 1000 750 CMO-7 7 20 - 150K 2, 5, 10 750 1000 750 CMO-8 8 30 - 200K 2, 5, 10 750 1000 750 CMO-9 9 50 - 200K 2, 5, 10 750 1000 750 0.5 0.3 - 50K 2, 5, 10 250 400 250 CMO-1S 1 0.3 - 50K 2, 5, 10 350 600 350 CMO-2S 2 0.3 - 50K 2, 5, 10 350 600 350 CMO-3S 3 0.3 - 50K 2, 5, 10 350 600 350 CMO-5SS 5 5 - 100K 2, 5, 10 500 800 500 CMO-5S 5 5 - 150K 2, 5, 10 500 800 500 Standard Size 350 Miniature Size CMO-1/2S 350 General Note IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC's own data and is considered accurate at time of printing. (c) IRC Wire and Film Technologies Division * 736 Greenway Road Boone, North Carolina 28607-1860 Telephone: 828 264 8861 * Facsimile: 828 264 8866 * Website: www.irctt.com A subsidiary of TT electronics plc CMO Series Issue February 2007 CMO Series Commercial Grade Metal Oxide Resistor IRC Wire and Film Technologies Division Environmental Performance Short-time overload Standard Size, R/R (1%+0.05), with no evidence of mechanical damage. Miniature Size, R/R (2%+0.05), with no evidence of mechanical damage. Dielectric withstanding voltage No evidence of flashover, mechanical damage, arcing or insulation breakdown. Pulse overload Standard Size, R/R (2%+0.05), with no evidence of mechanical damage. Miniature Size, R/R (5%+0.05), with no evidence of mechanical damage. Terminal strength No evidence of mechanical damage. Resistance to Soldering heat 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 (2%+0.05), with no evidence of mechanical damage. Humidity (Steady state) R/R (2%+0.05), with no evidence of mechanical damage. Load life in humidity R/R: 5% for <100K; 10% for 100K. Load life R/R: 5% for <100K; 10% for 100K. Flame retardant No evidence of flaming or arcing. General Note IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC's own data and is considered accurate at time of printing. (c) IRC Wire and Film Technologies Division * 736 Greenway Road Boone, North Carolina 28607-1860 Telephone: 828 264 8861 * Facsimile: 828 264 8866 * Website: www.irctt.com A subsidiary of TT electronics plc CMO Series Issue February 2007 CMO Series Commercial Grade Metal Oxide Resistor IRC Wire and Film Technologies Division Dimensions (mm) Od D H L IRC Type Standard Size Miniature Sizes H D (max.) L (max.) d (0.02) H (3) CMO-1/4 2.5 7.5 0.6 28 CMO-1/2 4.0 10.0 0.6 28 CMO-1 5.0 12.0 0.7 28 CMO-2 5.5 16.0 0.8 28 CMO-3 6.5 17.5 0.8 28 CMO-5 8.5 26.0 0.8 38 CMO-7 8.5 32.0 0.8 38 CMO-8 8.5 41.0 0.8 38 CMO-9 8.5 54.0 0.8 38 CMO-1/2S 3.0 7.5 0.6 28 CMO-1 4.5 10.0 0.7 28 CMO-2 5.0 12.0 0.7 28 CMO-3 5.5 16.0 0.8 28 CMO-5SS 6.5 17.5 0.8 28 CMO-5S 8.0 25.0 0.8 38 * Standard gray base color for standard size product; Blue color for miniature size product * Standard non-flammable coating General Note IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC's own data and is considered accurate at time of printing. (c) IRC Wire and Film Technologies Division * 736 Greenway Road Boone, North Carolina 28607-1860 Telephone: 828 264 8861 * Facsimile: 828 264 8866 * Website: www.irctt.com A subsidiary of TT electronics plc CMO Series Issue February 2007 IRC Wire and Film Technologies Division Performance Curves 100 -55C Temperature Rise Chart 70C 130C 235C 80 60 MOR 1W-9W CMO 1W~9W 40 CMO 1/4W~1/2W 1/4W-1/2W MOR 20 0 -60 -40 -20 0 20 40 60 80 100 120 140 160 180 200 240 Temperature rise (C) Percent rated load (%) Derating Curve 250 150 7W, 8W, 9W 5W 3W 2W 100 1W 200 1/4W, 1/2W 50 0 25 50 75 Rated load (%) Ambient temperature (C) Ordering Data Specify type, resistance, tolerance, RoHS-Compliance and packaging. This example is for a Metal Oxide Resistor, 2-watt, 1000 resistor. Sample Part No. CMO 2 1001 J LF AMMO IRC Type Power rating (See specs table) Resistance Value (EIA 4-digit code) (100 - First 3 significant digits plus 4th digit multiplier) Example: 100 = 1000; 1000 = 1001 150K = 1503 (>100 - "R" is used to designate decimal) Example: 10 = 51R0; 1 = 1R00 0.25 = R250 Tolerance (EIA format) G = 2% J = 5% K = 10% RoHS- compliance LF = RoHS compliant construction Packaging BLK = bulk packaging AMMO = ammo packaging LT = lead tape TR = tape and reel General Note IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC's own data and is considered accurate at time of printing. (c) IRC Wire and Film Technologies Division * 736 Greenway Road Boone, North Carolina 28607-1860 Telephone: 828 264 8861 * Facsimile: 828 264 8866 * Website: www.irctt.com A subsidiary of TT electronics plc CMO Series Issue February 2007