Precision Non Military
Metal Glaze™ Resistors
Spiraled or laser
helixed to
resistance value,
tolerance
RG Series
High temperature
soldered termination-lead
assembly
• Surge Capabilities
Digital or color
code marking
• 1/8 watt to 3 watts
• 0.4 ohm to 5.1 megohms
Tough molded jacket.
RG 1/8 types
have glass-filled
conformal jacket
• ±25 ppm/°C to ±200 ppm/°C
• 0.5% to 5% tolerance; 0.1% in selected ranges
Metal Glaze thick film element fired
at 1000°C to solid ceramic core
30-70 Electroplated copper leads
Electrical Data
IRC Power
Rating
(watts @ °C)
Maximum
Voltage
Rating
IRC
Resistance
Range (Ω)
Nominal
Size
Dimension
Code
200
200
200
1/4 @ 70
1/2 @ 705
1 @ 70
200
2506
350
4.3 to 1.5M
4.3 to 5.1M
4.3 to 5.1M
1/8W
1/4W
1/2W
1
2
3
.5, 1
.5, 1
.5, 1
100
50
25
1/4 @ 70
1/8 @ 70
1/8 @ 70
200
200
200
10 to 1M
10 to 1M
10 to 1M
1/8W
1/8W
1/8W
1
1
1
Band/Stamp
Band/Stamp
Band/Stamp
1, 2, 5
1, 2, 5
1, 2, 5
100
100
100
1/4 @ 70
1/2 @ 70
1 @ 70
200
250
250
.4 to 9.9
.4 to 9.9
.4 to 9.9
1/8W
1/4W
1/2W
1
2
3
Flame-Resist
Stamp
Stamp
1
2, 5
504, 100
100
1/2 @ 70
1/2 @ 70
250
250
.4 to 2M
.4 to 2M
1/4W
1/4W
2
2
GF-60
GF-20
Flame-Resist2
Flame-Resist2
Stamp
Stamp
1
2, 5
504, 100
100
3/4 @ 70
3/4 @ 70
350
350
.4 to 2M
.4 to 2M
1/2W
1/2W
4
4
GF-3
Flame-Resist2
Stamp
1, 2, 5
200
2 @ 70
750
1 to 2M
3W
5
1000
1 to 3M
3W
5
IRC
Type
MIL
Type
Marking
Tolerance
(ppm/°C)
T.C.
(ppm/°C)
RG 1/8¹
RG 1/4
RG 1/2
-
Band
Band
Band
2, 5
5
5
TO-50¹
T2-50¹
T9-50¹
-
Stamp
Stamp
Stamp
TF-05¹
TF-07
TF-20
-
GF-55
GF-07
Flame-Resist2
2
3 @ 70
GS-3
-
Stamp
1, 2, 5
504, 100
2 @ 70
RG-07
RG-20
-
Band
Band
2, 5
2, 5
200
200
1/2 @ 70
1 @ 70
250
350
4.3 to 5.1M
4.3 to 5.1M
1/4W
1/2W
2
3
TO-55
T2-55
T9-55
T0-60
T2-60
T9-60
-
Band/Stamp
Stamp
Stamp
Band/Stamp
Stamp
Stamp
.1, .5, 1³
.1, .5, 1³
.1, .5, 1³
.1, .5, 1³
.1, .5, 1³
.1, .5, 1³
100
50
25
100
50
25
1/2 @ 70
1/4 @ 70
1/4 @ 70
3/4 @ 70
1/2 @ 70
1/2 @ 70
200
200
200
300
250
250
10 to 3.01M
10 to 3.01M
10 to 3.01M
10 to 3.01M
10 to 3.01M
10 to 3.01M
1/4W
1/4W
1/4W
1/2W
1/2W
1/2W
2
2
2
4
4
4
3 @ 70
Notes:
1. Conformally coated construction on all 1/8 nominal size resistors.
2. Contact factory for details on flame-resistant specifications.
3. Only available in F tolerance above 2M ohm.
4. Below 10 ohms only available in 100 ppm.
5. 1 Watt @ 70C available - see page 87.
6. Contact factory for details on higher voltage rating.
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
RG Series Issue April 2010 Sheet 1 of 3
Precision Non Military
Metal Glaze™ Resistors
Commercial Power
Derating Curve
RG 1/4 High-Frequency
Characteristics
RG1/8, RG1/4, RG07,
RG20, TF07, TF20
80
60
40
TO/T2-55 & 60
20
% Of DC Resistance
% Of Commercial Rated Power
(in many cases,
2X MIL Spec. power rating)
100
50Ω
100
2KΩ
10KΩ
50
20
0
70
125
150
175
1
10
100
100KΩ
1000
Frequency (MHz)
Ambient Temperature (°C)
g
Repetitive Surge Curve
Note: Use for Repetitive pulses where the average power dissipation is not to exceed the component rating at 70°C.
Please consult factory for applications subject to non-repetitive or low repetition rate surges.
Ordering Data
Sample Part No.
RG1/4
2203
J
LF
IRC Type
See specification table for types available.
Resistance
Standard EIA/MIL resistance values for metal film resistors.
See specification table for range on inside back cover.
Tolerance
F = ±1%, G = ±2%, J = ±5%
See specification table for availability.
RoHS Compliance
LF = Lead Free
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
RG Series Issue April 2010 Sheet 3 of 3
