Precision Non-Military
Metal Glaze™ Resistors
RG series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
11. 11
· Excellent pulse handling
· Carbon comp. alternative
· 1/8 watt to 3 watts
· 0.4 ohm to 5.1 megohms
· 0.5% to 5% tolerance; 0.1% in selected ranges
· ±25 ppm/°C to ±200 ppm/°C
Precision Non-Military
Metal Glaze™Resistors
RG series
sExcellent pulse handling
sCarbon comp. alternative
s1/8 watt to 3 watts
s0.4 ohm to 5.1 megohms
s0.5% to 5% tolerance; 0.1% in selected ranges
s±25 ppm/°C to ±200 ppm/°C
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
184
Power Max. Nominal
MIL Tol T.C. Rating Volt. Resistance Size Dimens.
Type Type Marking (±%) (ppm/°C)
(watts @70°C)
Rtg. Range (Ω) (watts) Code
RG 1/81- Band 2, 5 200 0.25 200 4R3 to 1M5 0.125 1
RG 1/4- Band 5 200 0.5525064R3 to 5M1 0.25 2
RG 1/2- Band 5 200 1 350 4R3 to 5M1 0.5 3
TO-501- Legend .5, 1 100 0.25 200 10R to 1M 0.125 1
T2-501- Legend .5, 1 50 0.125 200 10R to 1M 0.125 1
T9-501- Legend .5, 1 25 0.125 200 10R to1M 0.125 1
TF-051- Band/Legend 1, 2, 5 100 0.25 200 0R4, 9M9 0.125 1
TF-07 - Band/Legend 1, 2, 5 100 0.5 250 0R4 to 9M9 0.25 2
TF-20 - Band/Legend 1, 2, 5 100 1 250 0R4 to 9M9 0.5 3
GF-55 Flame Resist2Legend 1 504, 100 0.5 250 0R4, 2M 0.25 2
GF-07 Flame Resist2Legend 2, 5 100 0.5 250 0R4, 2M 0.25 2
GF-60 Flame Resist2Legend 1 504, 100 0.75 350 0R4, 2M 0.5 4
GF-20 Flame Resist2Legend 2, 5 100 0.75 350 0R4, 2M 0.5 4
GF-3 Flame Resist2Legend 1, 2, 5 200 2 750 1R to 2M 3 5
3
GS-3 Flame Resist2Legend 1, 2, 5 504, 100 2 1000 1R to 3M 3 5
3
RG-07 - Band 2, 5 200 0.5 250 4R3 to 5M1 0.25 2
RG-20 - Band 2, 5 200 1 350 4R3 to 5M1 0.5 3
TO-55 - Band/Legend .1, .5, 13100 0.5 200 10R to 3M01 0.25 2
T2-55 - Legend .1, .5, 1350 0.25 200 10R to 3M01 0.25 2
T9-55 - Legend .1, .5, 1325 0.25 200 10R to 3M01 0.25 2
T0-60 - Band/Legend .1, .5, 13100 0.75 300 10R to 3M01 0.5 4
T2-60 - Legend .1, .5, 1350 0.5 250 10R to 3M01 0.5 4
T9-60 - Legend .1, .5, 1325 0.5 250 10R to 3M01 0.5 4
Electrical Data
03. 08
A subsidiary of
TT electronics plc
Welwyn Components
1Conformally coated construction on all 1/8W nominal size resistors.
2Contact factory for details on flame-resistant specifications.
3Only available in F tolerance above 2M ohm.
4Below 10 ohms only available in 100 ppm.
51 watt @ 70°C available - consult factory.
6Contact factory for details on higher voltage rating.
RG_C.qxd 28/4/03 10:57 am Page 1
Precision Non-Military
Metal Glaze™Resistors
RG series
sExcellent pulse handling
sCarbon comp. alternative
s1/8 watt to 3 watts
s0.4 ohm to 5.1 megohms
s0.5% to 5% tolerance; 0.1% in selected ranges
s±25 ppm/°C to ±200 ppm/°C
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
184
Power Max. Nominal
MIL Tol T.C. Rating Volt. Resistance Size Dimens.
Type Type Marking (±%) (ppm/°C)
(watts @70°C)
Rtg. Range (Ω) (watts) Code
RG 1/81- Band 2, 5 200 0.25 200 4R3 to 1M5 0.125 1
RG 1/4- Band 5 200 0.5525064R3 to 5M1 0.25 2
RG 1/2- Band 5 200 1 350 4R3 to 5M1 0.5 3
TO-501- Legend .5, 1 100 0.25 200 10R to 1M 0.125 1
T2-501- Legend .5, 1 50 0.125 200 10R to 1M 0.125 1
T9-501- Legend .5, 1 25 0.125 200 10R to1M 0.125 1
TF-051- Band/Legend 1, 2, 5 100 0.25 200 0R4, 9M9 0.125 1
TF-07 - Band/Legend 1, 2, 5 100 0.5 250 0R4 to 9M9 0.25 2
TF-20 - Band/Legend 1, 2, 5 100 1 250 0R4 to 9M9 0.5 3
GF-55 Flame Resist2Legend 1 504, 100 0.5 250 0R4, 2M 0.25 2
GF-07 Flame Resist2Legend 2, 5 100 0.5 250 0R4, 2M 0.25 2
GF-60 Flame Resist2Legend 1 504, 100 0.75 350 0R4, 2M 0.5 4
GF-20 Flame Resist2Legend 2, 5 100 0.75 350 0R4, 2M 0.5 4
GF-3 Flame Resist2Legend 1, 2, 5 200 2 750 1R to 2M 3 5
3
GS-3 Flame Resist2Legend 1, 2, 5 504, 100 2 1000 1R to 3M 3 5
3
RG-07 - Band 2, 5 200 0.5 250 4R3 to 5M1 0.25 2
RG-20 - Band 2, 5 200 1 350 4R3 to 5M1 0.5 3
TO-55 - Band/Legend .1, .5, 13100 0.5 200 10R to 3M01 0.25 2
T2-55 - Legend .1, .5, 1350 0.25 200 10R to 3M01 0.25 2
T9-55 - Legend .1, .5, 1325 0.25 200 10R to 3M01 0.25 2
T0-60 - Band/Legend .1, .5, 13100 0.75 300 10R to 3M01 0.5 4
T2-60 - Legend .1, .5, 1350 0.5 250 10R to 3M01 0.5 4
T9-60 - Legend .1, .5, 1325 0.5 250 10R to 3M01 0.5 4
Electrical Data
03. 08
A subsidiary of
TT electronics plc
Welwyn Components
1Conformally coated construction on all 1/8W nominal size resistors.
2Contact factory for details on flame-resistant specifications.
3Only available in F tolerance above 2M ohm.
4Below 10 ohms only available in 100 ppm.
51 watt @ 70°C available - consult factory.
6Contact factory for details on higher voltage rating.
RG_C.qxd 28/4/03 10:57 am Page 1
Precision Non-Military
Metal Glaze™ Resistors
RG series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
11. 11
Precision Non-Military
Metal Glaze™Resistors
RG series
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
185
03. 08
Welwyn Components
Packaging
Resistors are supplied taped and reeled.
Bulk packaging available upon request.
Dimensions (mm)
Dim Nominal Body Length Body Dia. Lead Length Lead Dia. Clean
Code Size (watts) BL BD LL LD Lead
1 0.125 3.8±0.3 1.7±0.2 25.4±3.2 0.41±0.05 5.7
2 0.25 6.4±0.4 2.3±0.2 38.1±3.2 0.64±0.05 7.9
3 0.5 9.9±0.3 3.6±0.2 38.1±3.2 0.81±0.05 11.4
4 0.5 9.9±0.3 3.6±0.2 38.1±3.2 0.64±0.05 11.4
5 3 13.1±0.3 5.7±0.2 38.1±3.2 0.81±0.05 14.6
Performance Data
BL
BD
LL
LD
120
100
80
60
40
20
00 0.2 0.4 0.6 0.8 1.0 1.2
Applied Power (watts)
Temperature ( oC)
RG 1/8W
RG07, TO-55
TO-60 *
RG20, RLR20 **
200
150
100
50
00 25 50 75 100
% Of Power Rating
Temperature ( oC)
% Of Commercial Rated Power
(in many cases, 2X MIL Spec. power rating)
100
80
60
40
20
070 125 150 175
Ambient Temperature( oC)
TO/T2
55 & 60
RG1/8, RG1/4, RG07,
RG20, TF07, TF20
100
50
20
1 10 100 1000
Frequency (MHz)
% of DC Resistance
50‰
2K‰
10K‰
100K‰
Performance Data
1.OE.04 1.OE.03 1.OE.02 1.OE.01 1.OE.00
1,000
100
10
1
Peak Power (Watts)
Surge or Pulse Duration (seconds)
RG-1/2W
RG-1/4W
RG-1/8W
GS-OW
RG ‘To’ Film Temp. Rise GS-3 Surface Temp. Rise Commercial Power Derating
RG 1/4 High-frequency CharacteristicsRG Series Surge Capability for Repetitive Surges
Note: Use for repetitive pulses where the average power dissipation is not to
exceed the component rating at 70°C.
Surge handling capacity for low-repetitive surges may be significantly greater
than shown above. Contact factory for recommendations
RG_C.qxd 28/4/03 10:57 am Page 2
Precision Non-Military
Metal Glaze™ Resistors
RG series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
11. 11
Precision Non-Military
Metal Glaze™Resistors
RG series
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
185
03. 08
Welwyn Components
RG_C.qxd 28/4/03 10:57 am Page 2
Ordering Procedure
Example: GF07 at 100 ohms and 5% tolerance packed on a reel of 5000 pieces -
G F 07 – 1 0 0 R J I
Type
Value (use IEC62 code)
Tolerance (use IEC62 code)
B
0.1%
F
1%
J
5%
D
0.5%
G
2%
Note: Check Electrical Data for available
tolerances for each type.
Packing
I
Tape
Dimension codes 1 & 2
5000/reel
Standard
Dimension code 3
3500/reel
Note: RG1/8, RG1/4 and RG1/2 are SnPb finish instead of Pb-free so the
packing suffix is replaced with PB. Example: RG1/4 - 100RJPB
