Thick Film Semi-Precision Metal Glaze™ Power Resistors GS-3 Series • • • • • Superior surge performance Resistance range from 1Ω - 3MΩ Standard tolerances of ±1%, ±2%, ±5% Power rating of 3W @25°C; 2W @70°C Effective as carbon composite replacement Electrical Data Part Number Power Rating (Watts) Resistance Range (Ohms) Tolerance (±%) TCR (±ppm/°C) Maximum Operating Voltage (Volts) Dielectric Withstanding Voltage (Volts) GS-3 2.0 (@ 70°C) 3.0 (@ 25°C) 1.0 - 3M 1, 2, 5 50 (>10Ω) 100, 200 (≤ 10Ω) 1000 1000 Environmental Data Maximum ∆R Limits Test TCR Load life Short term overload Moisture Temperature Cycling Solder Effect Termination Strength Shock Vibration ±ppm/°C %∆R %∆R %∆R %∆R %∆R %∆R %∆R %∆R MIL-R-26 MIL-R-10509D MIL-R-22684 GS-3 30 100 200 100/50 0.5 1.0 2.0 2.0 0.20 0.50 0.50 0.20 0.20 1.50 1.50 0.40 0.20 0.50 - 0.20 - 0.50 0.50 0.20 0.10 0.20 0.50 0.10 0.10 0.50 0.50 0.10 0.10 0.50 0.50 0.10 Operating Temperature -55°C to +175°C 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 GS-3 Series Issue October 2008 Sheet 1 of 3 Thick Film Semi-Precision Metal Glaze™ Power Resistors Physical Data L H d GS-3 W Dimensions (inches and (mm)) Type L W H ød GS-3 0.515 ± 0.010 (13.1 ± 0.3) 0.225 ± 0.008 (5.7 ± 0.2) 1.50 ± 0.125 (38.1 ± 3.2) 0.032 ± 0.002 (0.8128 ± 0.05) Power Derating Chart Percent Rated Power 100 80 60 40 20 0 0 75 125 175 Ambient Temperature (°C) Hot Spot Temperature +25°C Ambient 200 Degrees (°C) 175 150 125 100 75 50 25 0 0 25 50 75 100 Percent 25°C Power Rating 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 GS-3 Series Issue October 2008 Sheet 2 of 3 Thick Film Semi-Precision Metal Glaze™ Power Resistors Ordering Data Sample Part No. GS - 3 100 1000 J LF SLT IRC Type GS = (Fixed Film Resistor High Stability) Power Rating 3 = 3W @ 25°C / 2W @ 70°C TCR Characteristics 50 = ±50 pmm/°C 100 = ±100 pmm/°C 200 = ±200 pmm/°C (available on values greater than 10 ohms) Resistance Value (100 ohms and greater - First 3 significant digits plus 4th digit multiplier) Example: 100 ohms = 1000, 1000 ohms = 1001, 150,000 ohms = 1503 (Less than 100 ohms - "R" is used to designate decimal) Example: 51 ohms = 51R0, 1 ohm = 1R00, 0.25 ohms = R250 Tolerance F = ±1%, G = ±2%, J = ±5% RoHS Compliance LF = RoHS-compliant product Packaging SLT = Standard Lead Tape T24 T25 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 GS-3 Series Issue October 2008 Sheet 3 of 3