Precision Metal Film Resistor RC Series Resistance tolerance down to 0.05% Low noise and negligible voltage coefcient CECC released product with low TCRs over a wide resistance range 100% tin plated (Pb-free, RoHS compliant) leads Electrical Data RC55 RC65 RC70 Notes Commercial Power Rating At 70C Watts 0.25 0.5 1.0 Resistance Range Ohms 1R to 4M 1R to 4M 10R0 to 10M Limiting Element Voltage Volts 350 350 500 Isolation Voltage Volts 500 500 700 TCR (20 to +70C) & codes ppm/C 5(V), 10(T), 15(Y), 25(D), 50(C) & 100(Z) See resistance restrictions Resistance Tolerance % 0.05(W), 0.1(B), 0.25(C), 0.5(D) & 1 (F) Approved CECC 40101-004 H J K K L Power Rating At 70C Watts 0.063 0.125 0.25 0.25 0.5 Resistance Range Ohms 1R to 1M 1R to 1M 1R to 1M 10R to 1M 10R to 1M Limiting Element Voltage Volts 200 200 250 250 350 Isolation Voltage Volts 280 280 350 350 500 TCR & Codes ppm/C 15(Y), 25(D), 50(C) & 100(Z) See resistance restrictions Resistance Tolerance (code) % 0.05(W), 0.1(B), 0.25(C), 0.5(D) & 1(F) Approved CECC 40101-804 A B B C Power Rating At 70C Watts 0.125 0.25 0.25 0.5 Resistance Range Ohms 1R to 1M 1R to 1M 10R to 1M 10R to 1M Limiting Element Voltage Volts 200 250 250 350 Isolation Voltage Volts 280 350 350 500 TCR & Codes ppm/C 15(T), 25(E) & 50(C) See resistance restrictions Resistance Tolerance (code) % 0.05(W), 0.1(B), 0.25(C), 0.5(D) & 1(F) Standard Values E24, E96 Preferred Any value to order Thermal Impedance C/Watt 110 70 60 Ambient Temperature Range C -55 to +155 General Note IRC reserves the right to make changes in product specication 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 RC Series Issue November 2009 Sheet 1 of 3 Telephone: 361 992 7900 Facsimile: 361 992 3377 Website: www.irctt.comPrecision Metal Film Resistor Physical Data Dimensions (mm) & Weight (g) PCB Min L D F D Wt. Type Mounting Bend Max Max Min Nom Nom Centers Radius d RC55 7.2 2.5 30 0.6 10.2 0.6 0.24 D RC65 10.0 3.7 30 0.6 12.7 0.6 0.40 L f RC70 15.5 5.5 30 0.8 18.4 1.2 1.15 Construction Marking A metal lm is deposited onto a high quality ceramic Type reference, TCR code, resistance value and former. Nickel-plated steel caps are force tted to the tolerance code. former and termination wires are welded to the caps. The resistance values conform to IEC 62. The resistor is adjusted to value by a helical cut in the lm and the body is protected with a specially formulated epoxy Solvent Resistance coating. Terminations The body protection and marking are resistant to all normal industrial cleaning solvents Material 100% tin plated over copper wire suitable for printed circuits. Strength The teminations meet the requirements of IEC 68.2.21. Solderability The terminations meet the requirements of IEC 115-1, Clause 4.17.3.2. Environmental Data CECC 40101-004 CECC 40101-804 *Actual Performance Requirements Requirements Maximum Typical Load At Commercial Rating: 1000 Hours At 70C R% --- --- 0.3 0.1 Load At CECC Rating: 1000 Hours At 70C R% 0.5 0.5 0.3 0.05 Dry Heat: 1000 Hours at 155C R% 0.5 0.5 **1.0 0.15 Shelf Life: 12 Months at Room Temperature R% Not specied Not specied 0.1 0.03 Derating From Rated Power At 70C Zero at 155C 50% at 125C --- --- Short Term Overload R% 0.1 0.1 0.1 0.02 Climatic R% 0.5 0.5 0.3 0.1 Climatic Category 55/155/56 55/155/56 55/155/56 --- Long Term Damp Heat R% 0.5 0.5 0.5 0.1 Temperature Rapid Change R% 0.1 0.1 **0.2 0.05 Resistance To Solder Heat R% 0.1 0.1 0.06 0.03 Vibration and Bump R% 0.1 0.1 0.06 0.02 Noise (in a decade of frequency) V/V Not specied Not specied 1.0 0.1 Voltage Coefcient Of Resistance ppm/V Not specied Not specied --- <1 Note: *An 0.01 ohm addition to be added to the performance claims of all resistors <10R. ** All products within the specied approved range meet CECC requirements. 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 RC Series Issue November 2009 Sheet 2 of 3