Precision High-Voltage
Thick Film Resistors
CGH Series
•
1/4 watt to 5 watt
•
TCR of ±50 or ±100 ppm/°C
•
100K ohm to 2000 megohm range
•
±0.5%, ±1%, ±2% or ±5% tolerance
Electrical Data
IRC Type
CGH - 1/4
CGH - 1/2
CGH - 1
CGH - 2
CGH - 3
CGH - 5
Power Rating
at 70°C (watts)¹
1/4
1/2
1
2
3
5
Voltage Rating
(volts)²
750
1,500
3,000
5,000
10,000
20,000
Resistance
Range (ohms)³
100K - 100M
100K - 500M
50K - 750M
.5, 1, 2, 5
100K - 1500M
200K - 2000M
300K - 2000M
50, 100
0 - -5
Tolerance
(±%)
4
Maximum TCR
(±ppm/°C)
4
VCR (ppm/V)
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 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 coefficient of resistance is -1 to -2 ppm/V measured at fulll rated voltage and 10% rated voltage.
Power Derating Curve
100
90
% of Rated Power
80
70
60
50
40
30
20
10
0
80
100
120
140
160
180
% of Rated Power
Temperature Rise Chart
100
90
80
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
Temperature Rise (°C)
CGH 1/2
CGH 5
CGH 1
CGH 1/4
CGH 2-3
Ambient Temperature (°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
IRCTT [ IRC - A TT ELECTRONICS COMPANY. ]
