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
Precision High-Voltage
Thick Film Resistors
Environmental Data
Test Condition¹
Maximum
ΔR
(±3σ)
Typical²
ΔR
Temperature Shock
Short-Time Overload (1.5 times rated V for 10 sec)
Solder Effect
Terminal Strength
Moisture Resistance (no load or polar)
Load Life (1000 hours at 70°C)
Shelf Life (1 year at 25°C)
High-Temperature Exposure (150°C for 2000 hours)
(175°C for 2000 hours)
±0.25%
±0.20%
±0.015%
±0.20%
±0.50%
±1.00%
±0.10%
±0.75%
±0.01%
±0.10%
±0.10%
±0.05%
±0.05%
±0.20%
±0.25%
±0.03%
±0.30%
±0.40%
Dielectric Breakdown³ (1/4 and 1/2 watt size)
(1 watt through 5 watt size)
Dielectric Strength
4
Insulation Resistance at 500 VDC
2000 VDC, 1500 VAC
3500 VDC, 2500 VAC
±0.15%
10
9
ohms typ.
±0.05%
10
11
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
CGH - 1/4
CGH - 1/2
CGH - 1
CGH - 2
CGH - 3
CGH - 5
Body Length - BL
0.275 ± 0.031 (6.98 ± 0.79)
0.400 ± 0.031 (10.16 ± 0.79)
0.690 ± 0.062 (17.53 ± 1.57)
1.062 ± 0.062 (26.97 ± 1.57)
2.062 ± 0.062 (52.37 ± 1.57)
3.062 ± 0.062 (77.77 ± 1.57)
Body Diameter - BD
0.088 ± 0.010 (2.22 ± 0.25)
0.138 ± 0.016 (3.51 ± 0.41)
0.297 ± 0.031 (7.54 ± 0.79)
0.297 ± 0.031 (7.54 ± 0.79)
0.297 ± 0.031 (7.54 ± 0.79)
0.297 ± 0.031 (7.54 ± 0.79)
Clean Lead to Clean Lead - CL
0.400 (10.16)
0.525 (13.34)
0.900 (22.86)
1.250 (31.75)
2.250 (57.15)
3.250 (82.55)
Ordering Data
Sample Part No.
IRC Type
CGH 1/4, CGH 1/2, CGH 1, CGH 2, CGH 3, CGH 5
CGH 3 - 100 - 2205 - F - LF
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
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