Resistors
Precision High-Voltage
Thick Film Resistors
Precision High-Voltage
Thick Film Resistors
CGH Series
1/4 watt to 5 watt
High thermal
conductivity substrate
TCR of 50 or 100 ppm/C
100K ohm to 2000 megohm range
CGH Series
0.5%, 1%, 2% or 5% tolerance
1/4 watt to 5 watt
TCR of 50 or 100 ppm/C
High thermal
100K ohm to 2000 megohm range
conductivity substrate
0.5%, 1%, 2% or 5% tolerance
All All Pb-Pb-frfreeee parts c parts comply omply with EU Dirwith EU Directivective e 2011/65/EU amended b2011/65/EU amended by y (EU) 2015/863 (R(EU) 2015/863 (RoHS3)oHS3)
Electrical Data
Power Rating Voltage Rating Resistance Tolerance Maximum TCR
5
IRC Type VCR (ppm/V)
4 4
at 70C (watts) (volts) Range (ohms) (%) (ppm/C)
CGH - 1/4 1/4 750 100K - 100M
CGH - 1/2 1/2 1,500 100K - 500M
CGH - 1 1 3,000 50K - 750M
.5, 1, 2, 5 50, 100 0 - -5
CGH - 2 2 5,000 100K - 1500M
CGH - 3 3 10,000 200K - 2000M
CGH - 5 5 20,000 300K - 2000M
Notes:
1. For power rating above 70C, 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 fre-
quency. 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 coef cient 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
90
CGH 1/4
90
80
CGH 2-3
80
70
CGH 1/2
70
60
CGH 5
60
50
CGH 1
50
40
40
30
30
20
20
10
10
0
0
80 100 120 140 160 180
0 10 20 30 40 50 60 70 80 90
Ambient Temperature (C)
Temperature Rise (C)
General Note
IRC reserves the right to make changes in product speci cation without notice or liability.
General Note
All information is subject to IRCs own data and is considered accurate at time of going to print. BI Technologies IRC Welwyn
A subsidiary of
TT Electronics reserves the right to make changes in product specification without notice or liability.
TT electronics plc
Wire and Film Technologies Division 4222 South Staples Street Corpus Christi Texas 78411 USA
All information is subject to TT Electronics own data and is considered accurate at time of going to print.
Telephone: 361 992 7900 Facsimile: 361 992 3377 Website: www.irctt.com CGH Sewww.ttries Issue electronics.com/resistorsJune 2009 Sheet 1 of 3
TT Electronics plc
06.18
% of Rated Power
% of Rated PowerPrecision High-Voltage
Precision High-Voltage
Thick Film Resistors
Thick Film Resistors
CGH Series
Environmental Data
Maximum R
Test Condition Typical R
(3)
Temperature Shock 0.25% 0.10%
Short-Time Overload (1.5 times rated V for 10 sec) 0.20% 0.10%
Solder Effect 0.15% 0.05%
Terminal Strength 0.20% 0.05%
Moisture Resistance (no load or polar) 0.50% 0.20%
Load Life (1000 hours at 70C) 1.00% 0.25%
Shelf Life (1 year at 25C) 0.10% 0.03%
0.75% 0.30%
High-Temperature Exposure (150C for 2000 hours)
(175C for 2000 hours)
1.0% 0.40%
2000 VDC, 1500 VAC
Dielectric Breakdown (1/4 and 1/2 watt size)
(1 watt through 5 watt size)
3500 VDC, 2500 VAC
4
Dielectric Strength 0.15% 0.05%
9 11
Insulation Resistance at 500 VDC 10 ohms typ. 10 ohms typ.
Notes:
1. Test method per MIL-STD-202 unless otherwise indicated.
2. Typical de ned 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
General Note
BI Technologies IRC Welwyn
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics own data and is considered accurate at time of going to print.
www.ttelectronics.com/resistors
TT Electronics plc
06.18