Precision Non Military
Metal Glaze™ Resistors
RG Series
•
Surge Capabilities
•
1/8 watt to 3 watts
•
0.4 ohm to 5.1 megohms
•
±25 ppm/°C to ±200 ppm/°C
•
0.5% to 5% tolerance; 0.1% in selected ranges
Tough molded jacket.
RG 1/8 types
have glass-filled
conformal jacket
Metal Glaze thick film element fired
at 1000°C to solid ceramic core
30-70 Electroplated copper leads
High temperature
soldered termination-lead
assembly
Spiraled or laser
helixed to
resistance value,
tolerance
Digital or color
code marking
Electrical Data
IRC
Type
RG 1/8¹
RG 1/4
RG 1/2
TO-50¹
T2-50¹
T9-50¹
TF-05¹
TF-07
TF-20
GF-55
GF-07
GF-60
GF-20
GF-3
MIL
Type
-
-
-
-
-
-
-
-
-
Flame-Resist
2
Flame-Resist
2
Marking
Band
Band
Band
Stamp
Stamp
Stamp
Band/Stamp
Band/Stamp
Band/Stamp
Stamp
Stamp
Stamp
Stamp
Stamp
Tolerance
(ppm/°C)
2, 5
5
5
.5, 1
.5, 1
.5, 1
1, 2, 5
1, 2, 5
1, 2, 5
1
2, 5
1
2, 5
1, 2, 5
T.C.
(ppm/°C)
200
200
200
100
50
25
100
100
100
50
4
, 100
100
50
4
, 100
100
200
IRC Power
Rating
(watts @ °C)
1/4 @ 70
1/2 @ 70
5
1 @ 70
1/4 @ 70
1/8 @ 70
1/8 @ 70
1/4 @ 70
1/2 @ 70
1 @ 70
1/2 @ 70
1/2 @ 70
3/4 @ 70
3/4 @ 70
2 @ 70
3 @ 70
Maximum
Voltage
Rating
200
250
6
350
200
200
200
200
250
250
250
250
350
350
750
IRC
Resistance
Range (Ω)
4.3 to 1.5M
4.3 to 5.1M
4.3 to 5.1M
10 to 1M
10 to 1M
10 to 1M
.4 to 9.9
.4 to 9.9
.4 to 9.9
.4 to 2M
.4 to 2M
.4 to 2M
.4 to 2M
1 to 2M
Nominal
Size
1/8W
1/4W
1/2W
1/8W
1/8W
1/8W
1/8W
1/4W
1/2W
1/4W
1/4W
1/2W
1/2W
3W
Dimension
Code
1
2
3
1
1
1
1
2
3
2
2
4
4
5
Flame-Resist
2
Flame-Resist
2
Flame-Resist
2
GS-3
-
Stamp
1, 2, 5
50
4
, 100
2 @ 70
3 @ 70
1000
1 to 3M
3W
5
RG-07
RG-20
TO-55
T2-55
T9-55
T0-60
T2-60
T9-60
-
-
-
-
-
-
-
-
Band
Band
Band/Stamp
Stamp
Stamp
Band/Stamp
Stamp
Stamp
2, 5
2, 5
.1, .5, 1³
.1, .5, 1³
.1, .5, 1³
.1, .5, 1³
.1, .5, 1³
.1, .5, 1³
200
200
100
50
25
100
50
25
1/2 @ 70
1 @ 70
1/2 @ 70
1/4 @ 70
1/4 @ 70
3/4 @ 70
1/2 @ 70
1/2 @ 70
250
350
200
200
200
300
250
250
4.3 to 5.1M
4.3 to 5.1M
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
1/2W
1/4W
1/4W
1/4W
1/2W
1/2W
1/2W
2
3
2
2
2
4
4
4
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.
A subsidiary of
TT electronics plc
RG Series Issue April 2010 Sheet 1 of 3
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
Precision Non Military
Metal Glaze™ Resistors
Physical Data
LL
BL
LD
BD
Dimensions
Dim
Code
1
2
3
4
5
Nominal
Size
1/8
1/4
1/2W
1/2W
3W
Body Length
BL
0.150 ± 0.020
(3.8 ± 0.3)
0.250 ± 0.015
(6.4 ± 0.4)
0.390 ± 0.010
(9.9 ± 0.3)
0.390 ± 0.010
(9.9 ± 0.3)
0.515 ± 0.010
(13.1 ± 0.3)
Body Diameter
BD
0.066 ± 0.008
(1.7 ± 0.2)
0.090 ± 0.008
(2.3 ± 0.2)
0.140 ± 0.008
(3.6 ± 0.2)
0.140 ± 0.008
(3.6 ± 0.2)
0.225 ± 0.008
(5.7 ± 0.2)
Lead Length
LL
1.00 ± 0.125
(25.4 ± 3.2)
1.50 ± 0.125
(38.1 ± 3.2)
1.50 ± 0.125
(38.1 ± 3.2)
1.50 ± 0.125
(38.1 ± 3.2)
1.50 ± 0.125
(38.1 ± 3.2)
Lead Diameter
LD
0.016 ± 0.002
(0.41 ± 0.05)
0.025 ± 0.002
(0.64 ± 0.05)
0.032 ± 0.002
(0.81 ± 0.05)
0.025 ± 0.002
(0.64 ± 0.05)
0.032 ± 0.002
(0.81 ± 0.05)
Clean Lead
0.225
(5.7)
0.310
(7.9)
0.450
(11.4)
0.450
(11.4)
0.575
(14.6)
RG ‘TO’ Temperature Rise
120
RG 1/8W
100
RG07, TO-55
Temperature (°C)
80
TO-60*
60
RG20, RLR20**
40
20
0
0
0.2
0.4
0.6
0.8
Applied Power (watts)
1.0
1.2
GS-3 Surface Temperature Rise
200
150
Temperature (°C)
100
50
0
0
25
50
75
% of 25°C Power Rating
100
*0.025 inch leads **0.032 inch leads
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 2 of 3
Precision Non Military
Metal Glaze™ Resistors
Commercial Power
Derating Curve
100
% Of Commercial Rated Power
(in many cases,
2X MIL Spec. power rating)
% Of DC Resistance
RG 1/4 High-Frequency
Characteristics
100
50Ω
2KΩ
80
60
40
RG1/8, RG1/4, RG07,
RG20, TF07, TF20
TO/T2-55 & 60
50
20
1
10
100
Frequency (MHz)
10KΩ
20
0
70
125
150
175
Ambient Temperature (°C)
100KΩ
1000
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.
IRC Type
See specification table for types available.
RG1/4
2203
J
LF
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
