PRECISION HIGH-VOLTAGE
THICK FILM RESISTORS
ISO-9001
Registered
CGH
SERIES
•
•
•
•
1/4 watt to 5 watt
100K ohm to 2000 megohm range
±0.5%, ±1%, ±2% or ±5% tolerance
TCR of ±50 or ±100 ppm/°C
Diamond spiraled
thick film element
Heat conducting
ceramic substrate
Epoxy coated body
High conductivity plated on
nickel termination
All welded cap and lead construction
Tin Lead electroplated leads
SPECIFICATIONS:
IRC Type
Power Rating Voltage Rating
@ 70°C (watts)
1
(volts)
2
Resistance
Range (ohms)
3
Tol (±%)
4
Maximum TCR
(±ppm/°C)
4
VCR (ppm/V)
5
CGH-1/4
CGH-1/2
CGH-1
CGH-2
CGH-3
CGH-5
1/4
1/2
1
2
3
5
750
1,500
3,000
5,000
10,000
20,000
100K-100M
100K-500M
50K-750M
100K-1500M
200K-2000M
300K-2000M
.5, 1, 2, 5
.5, 1, 2, 5
.5, 1, 2, 5
.5, 1, 2, 5
.5, 1, 2, 5
.5, 1, 2, 5
50, 100
50, 100
50, 100
50, 100
50, 100
50, 100
0 to -5
0 to -5
0 to -5
0 to -5
0 to -5
0 to -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 full rated voltage and 10% rated voltage.
DIMENSIONS
(Inches and (mm)):
1.50±0.125
(38.1±3.2)
* CGH 1/4 leads are
0.025 (0.64) in diameter
IRC Type
Body Length - BL
0.032 (0.81) DIA.*
Body Diameter - BD
Clean Lead to Clean Lead - CL
CGH-1/4
CGH-1/2
CGH-1
CGH-2
CGH-3
CGH-5
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)
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)
0.400 (10.16)
0.525 (13.34)
0.900 (22.86)
1.250 (31.75)
2.250 (57.15)
3.250 (82.55)
WIREWOUND AND FILM TECHNOLOGIES DIVISION
736 Greenway Road
•
Boone, North Carolina 28607-1860
•
Tel: 828-264-8861
•
Fax: 828-264-8866
•
www.irctt.com
1
ISO-9001
Registered
CGH ENVIRONMENTAL PERFORMANCE:
TEST CONDITION
1
Maximum
∆
R
(±3σ)
σ
Typical
2
∆
R
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)
Dielectric Breakdown
3
(1/4 and 1/2 watt size)
(1 watt through 5 watt size)
Dielectric Strength
4
Insulation Resistance at 500 VDC
NOTES:
1. Test method per MIL-STD-202 unless otherwise indicated
±0.25%
±0.20%
±0.015%
±0.20%
±0.50%
±1.00%
±0.10%
±0.75%
±1.0%
±0.10%
±0.10%
±0.05%
±0.05%
±0.20%
±0.25%
±0.03%
±0.30%
±0.40%
2000 VDC, 1500 VAC
3500 VDC, 2500 VAC
±0.05%
±0.15%
10
9
ohms min. 10
11
ohms typ.
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
TEMPERATURE RISE:
100
90
80
% Of Rated Power
POWER DERATING:
100
90
80
CGH 1/4
CGH 2-3
% Of Rated Power
70
60
50
40
30
20
10
0
0
CGH 1/2
CGH 5
CGH 1
70
60
50
40
30
20
10
10
20
30
40
50
60
70
80
90
0
80
100
120
140
160
180
Temperature Rise (°C)
Ambient Temperature (°C)
HOW TO ORDER:
Sample Part No.:
CGH 3
-
50ppm/°C
- 2205 (22M) - 1%
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
Standard EIA/MIL values for metal film resistors. See specification chart on back inside cover for range.
Tolerance
±0.5%, ±1%, ±2%, ±5%
2
WIREWOUND AND FILM TECHNOLOGIES DIVISION
736 Greenway Road
•
Boone, North Carolina 28607-1860
•
Tel: 828-264-8861
•
Fax: 828-264-8866
•
www.irctt.com
