Carbon Composition Resistor -OLDED "ODY IBT Series * Meets performance standards of EIA RS-172 4INNED ,EADS * Hot molded processw for product uniformity * Ideal for pulse-loaded handling -OLDED #OMPOSITION %LEMENTS Electrical Data Tested Per MIL-STD-202 IBT 1/4 IBT 1/2 1/4W 1/2W P x R or 250 volts P x R or 350 volts whichever is less whichever is less 130C 130C 1 - 5.6 meg 1 - 20 meg 5%, 10% 5%, 10% Atmospheric Pressure 500V 700V Barometric pressure 3.4" Hg 115 millibars 325V 450V (min.) 10,000 meg 10,000 meg % resistance change/volt at 10% and (min.) -.005% -.005% 100% RCWV for values 1K to 20 meg (max.) Power Rating Determined by load life test 100% load @ 70C ambient Rated Continuous Working Voltage (RCWV) Maximum Ambient Temperature Resistors derated to zero load at this temperature Nominal Resistance Range Standard Resistance Tolerances Dielectric Withstand Voltage Insulation Resistance Voltage Coefficient of Resistance -.032% -.032% Short-Time Overload Maximum Voltage 700V 700V Apply 2.5 times RCWV at maximum Typical resistance change 0.5% 0.5% Indicated for 5 seconds Maximum resistance change 2% 2% 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 going to print. Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com A subsidiary of TT electronics plc IBT Series Issue January 2010 Sheet 1 of 2 Carbon Composition Resistor Resistance Temperature Characteristics Resistance Range -55C -105C under 1K +2.0 to +5.0 -4.0 to -2.0 1K to 9.1 K +5.0 to +9.0 -5.0 to -3.0 Maximum percent resistance change from room temperature (+25C) value 10K to 91K +8.0 to +11.0 -7.0 to -5.0 100K to 910K +10.0 to +14.0 -9.0 to -7.0 1 meg to 10 meg 13.0 to +20.0 -14.0 to -9.0 Physical Data A B D A PACKAGING: 5000/reel 1000/bulk C Dimensions (Inches and (mm)) IRC Type A B C D IBT 1/4 1.18 0.12 (30.00 3.0) 0.248 0.028 (6.3 0.70) 0.024 0.002 (0.60 0.05) 0.094 0.004 (2.40 0.10) IBT 1/2 1.1 0.12 (28.00 3.0) 0.374 0.032 / -0.028 (9.50 + 0.80 / -0.70) 0.0275 0.002 (0.70 0.05) 0.142 0.008 (3.6 0.20) Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com IBT Series Issue January 2010 Sheet 2 of 2