High Value Thick Film Resistor GC Series • Value up to 1G ohm • High stability thick film • Tolerance down to 1%, 2%, 5% Electrical Data IRC Type Power Rating at 70°C (watts) Resistance Range (ohms) Limiting Element Voltage (volts) Isolation Voltage (volts) TCR (20 to 70°C) (ppm/°C) Resistance Tolerance (Code) GC65 0.5 47K to 1G 3500 700 100 1(F), 2(G), 5(J) Standard Values EIA 2% values preferred Thermal Impedance (°C/watt) Operating Temperature Range (°C) 90 -55 to 155 Environmental Data Typical Load at Rated Voltage: 1000 hours @ 70°C ∆R% Derating from Rated Power at 70°C Climatic 0.1 zero at 155°C ∆R% Climatic Category 1 55/155/56 CONSTRUCTION: Thick film material is fired onto high grade ceramic rods. Nickel plated steel caps are force fitted to the rods and the terminations are welded to the caps. The value is obtained by a helical cut in the film and, finally the resistor body is given a high temperature protective coating. TERMINATIONS: Solder-coated copper wire. MARKING: Type reference, TCR code, resistance value, and tolerance code are legend marked. SOLVENT RESISTANCE: The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuits. 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 GC Series Issue October 2008 Sheet 1 of 2 High Value Thick Film Resistor Physical Data L 30mm min. d dia. d dia. Dimensions (Inches and (mm)) & WEIGHT (G) IRC Type L max D max d nom Wt nom GC65 0.394 (10.0) 0.146 (3.7) 0.024 (0.6) 0.4 Packaging Data Loose packed in boxes or taped (on reel or in ammo box). Standard Quantities Per Box/Spool: Packaging GC65 Packaging GC65 Box 100 Taped (reeled) 5000 Large box 1000 Taped (ammo box) 2000 Ordering Data Specify type reference etc. as indicated in this example of GC65 2.5Ω, 1%, taped and ammo boxed. Sample Part No. GC65 2M5 F Ammo IRC Type GC65 Value Tolerance (EIA format) F = ±1%, J = ±5% Packaging Details A = Ammo Pkg, B = Box, R = Tape & Reel 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 GC Series Issue October 2008 Sheet 2 of 2