Thick Film Semi-Precision
Metal Glaze™
Power Resistors
GS-3 Series
•
•
•
•
•
Superior surge performance
Resistance range from 1Ω - 3MΩ
Standard tolerances of ±1%, ±2%, ±5%
Power rating of 3W @25°C; 2W @70°C
Effective as carbon composite replacement
Electrical Data
Part
Number
Power Rating
(Watts)
Resistance
Range
(Ohms)
Tolerance
(±%)
TCR
(±ppm/°C)
Maximum
Operating
Voltage
(Volts)
1000
Dielectric
Withstanding
Voltage
(Volts)
1000
GS-3
2.0 (@ 70°C)
3.0 (@ 25°C)
1.0 - 3M
1, 2, 5
50 (>10Ω)
100, 200 (≤ 10Ω)
Environmental Data
Test
MIL-R-26
TCR
Load life
Short term overload
Moisture
Temperature Cycling
Solder Effect
Termination Strength
Shock
Vibration
Operating Temperature
±ppm/°C
%∆R
%∆R
%∆R
%∆R
%∆R
%∆R
%∆R
%∆R
30
0.5
0.20
0.20
0.20
-
0.10
0.10
0.10
Maximum
∆R
Limits
MIL-R-10509D
100
1.0
0.50
1.50
0.50
0.50
0.20
0.50
0.50
MIL-R-22684
200
2.0
0.50
1.50
-
0.50
0.50
0.50
0.50
GS-3
100/50
2.0
0.20
0.40
0.20
0.20
0.10
0.10
0.10
-55°C to +175°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
GS-3 Series Issue October 2008 Sheet 1 of 3
Thick Film Semi-Precision
Metal Glaze™
Power Resistors
Physical Data
H
L
d
GS-3
W
Dimensions (inches and (mm))
Type
GS-3
L
0.515 ± 0.010
(13.1 ± 0.3)
W
0.225 ± 0.008
(5.7 ± 0.2)
H
1.50 ± 0.125
(38.1 ± 3.2)
ø
d
0.032 ± 0.002
(0.8128 ± 0.05)
Power Derating Chart
100
Percent Rated Power
80
60
40
20
0
0
75
125
175
Ambient Temperature (°C)
Hot Spot Temperature +25°C Ambient
200
175
150
125
100
75
50
25
0
0
25
50
75
100
Degrees (°C)
Percent 25°C Power Rating
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
GS-3 Series Issue October 2008 Sheet 2 of 3
Thick Film Semi-Precision
Metal Glaze™
Power Resistors
Ordering Data
Sample Part No.
IRC Type
GS = (Fixed Film Resistor High Stability)
GS - 3
100
1000
J
LF
SLT
Power Rating
3 = 3W @ 25°C / 2W @ 70°C
TCR Characteristics
50 = ±50 pmm/°C
100 = ±100 pmm/°C
200 = ±200 pmm/°C
(available on values greater than 10 ohms)
Resistance Value
(100 ohms and greater - First 3 significant digits plus 4th digit multiplier)
Example: 100 ohms = 1000, 1000 ohms = 1001, 150,000 ohms = 1503
(Less than 100 ohms - "R" is used to designate decimal)
Example: 51 ohms = 51R0, 1 ohm = 1R00, 0.25 ohms = R250
Tolerance
F = ±1%, G = ±2%, J = ±5%
RoHS Compliance
LF = RoHS-compliant product
Packaging
SLT = Standard Lead Tape
T24
T25
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
GS-3 Series Issue October 2008 Sheet 3 of 3
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