Precision High-Voltage Thick Film Resistors $IAMONDSPIRALED THICKFILMELEMENT CGH Series (EATCONDUCTING CERAMICSUBSTRATE • 1/4 watt to 5 watt • TCR of ±50 or ±100 ppm/°C %POXYCOATEDBODY (IGHCONDUCTIVITY • 100K ohm to 2000 megohm range • ±0.5%, ±1%, ±2% or ±5% tolerance !LLWELDEDCAPANDLEADCONSTRUCTION 4IN,EADELECTROPLATEDLEADS Electrical Data Power Rating at 70°C (watts)¹ Voltage Rating (volts)² Resistance Range (ohms)³ CGH - 1/4 1/4 750 100K - 100M CGH - 1/2 1/2 1,500 100K - 500M CGH - 1 1 3,000 50K - 750M CGH - 2 2 5,000 100K - 1500M CGH - 3 3 10,000 200K - 2000M CGH - 5 5 20,000 300K - 2000M IRC Type Tolerance (±%)4 Maximum TCR (±ppm/°C)4 VCR (ppm/V)5 .5, 1, 2, 5 50, 100 0 - -5 Notes: 1. For power rating above 70°C, see derating curve. 2. Voltage rating shown is the rated DC continuous working voltage or the sine-wave RMS absolute maximum voltage at commercial line frequency. For DC applications the absolute maximum permissible voltage is 1.5 times the value shown for low repetition short-time-overload or pulse conditions of 10 seconds or less duration. 3. Contact factory for higher resistance values. 4. For CGH-1 and 2 above 500 meg and CGH-3 and 5 above 1000M only 2 and 5% tolerance and 100 ppm/°C TCR available. 5. Typical voltage coefficient of resistance is -1 to -2 ppm/V measured at fulll rated voltage and 10% rated voltage. Power Derating Curve Temperature Rise Chart 100 100 CGH 1/4 90 80 % of Rated Power % of Rated Power 90 70 60 50 40 30 20 CGH 2-3 80 CGH 1/2 70 CGH 5 60 CGH 1 50 40 30 20 10 10 0 80 100 120 140 160 180 Ambient Temperature (°C) 0 0 10 20 30 40 50 60 70 80 90 Temperature Rise (°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 CGH Series Issue June 2009 Sheet 1 of 3 Precision High-Voltage Thick Film Resistors Environmental Data Maximum ΔR (±3σ) Typical² ΔR Temperature Shock ±0.25% ±0.10% Short-Time Overload (1.5 times rated V for 10 sec) ±0.20% ±0.10% Solder Effect ±0.015% ±0.05% Terminal Strength ±0.20% ±0.05% Moisture Resistance (no load or polar) ±0.50% ±0.20% Load Life (1000 hours at 70°C) ±1.00% ±0.25% Shelf Life (1 year at 25°C) ±0.10% ±0.03% High-Temperature Exposure (150°C for 2000 hours) ±0.75% ±0.30% (175°C for 2000 hours) ±0.01% ±0.40% Test Condition¹ Dielectric Breakdown³ (1/4 and 1/2 watt size) 2000 VDC, 1500 VAC (1 watt through 5 watt size) 3500 VDC, 2500 VAC Dielectric Strength4 Insulation Resistance at 500 VDC ±0.15% ±0.05% 109 ohms typ. 1011 ohms typ. Notes: 1. Test method per MIL-STD-202 unless otherwise indicated. 2. Typical defined as that percent change which will include a minimum of 50% of the measured changes in resistance from a variety of lots representing various unit sizes and ranges. 3. Values shown are the maximum safe dielectric voltage applied from a V block or foil wrapping which extends the complete body length of the resistor under test. 4. Percent change after the maximum safe dielectric voltage is applied for 1 minute. 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 CGH Series Issue June 2009 Sheet 2 of 3 Precision High-Voltage Thick Film Resistors Physical Data 1.50 ± 0.125 (38.1 ± 3.2) BL 0.032 (0.81) DIA. BD CL Dimensions (Inches and (mm)) IRC Type Body Length - BL Body Diameter - BD Clean Lead to Clean Lead - CL CGH - 1/4 0.275 ± 0.031 (6.98 ± 0.79) 0.088 ± 0.010 (2.22 ± 0.25) 0.400 (10.16) CGH - 1/2 0.400 ± 0.031 (10.16 ± 0.79) 0.138 ± 0.016 (3.51 ± 0.41) 0.525 (13.34) CGH - 1 0.690 ± 0.062 (17.53 ± 1.57) 0.297 ± 0.031 (7.54 ± 0.79) 0.900 (22.86) CGH - 2 1.062 ± 0.062 (26.97 ± 1.57) 0.297 ± 0.031 (7.54 ± 0.79) 1.250 (31.75) CGH - 3 2.062 ± 0.062 (52.37 ± 1.57) 0.297 ± 0.031 (7.54 ± 0.79) 2.250 (57.15) CGH - 5 3.062 ± 0.062 (77.77 ± 1.57) 0.297 ± 0.031 (7.54 ± 0.79) 3.250 (82.55) Ordering Data Sample Part No. CGH 3 - 100 - 2205 - F - LF IRC Type CGH 1/4, CGH 1/2, CGH 1, CGH 2, CGH 3, CGH 5 Temperature Coefficient (±100 ppm/°C, ±50 ppm/°C) Resistance Tolerance D = ±0.5% F = ±1% G = ±2% J = ±5% RoHS Indicator LF indicates RoHS compliance 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 CGH Series Issue June 2009 Sheet 3 of 3