Resistors
Resistors
Commercial Styles
Commercial Styles Semi-Precision
Semi-Precision
Commercial Styles Semi-Precision
Power Wirewound Resistors
Power Wirewound Resistors
Power Wirewound Resistors
T / NT Wirewound Series
•
0.75 to
to 300KΩ
0.1Ω
14 watts
•
/ NT
300KΩ
T
0.1Ω to
Wirewound Series
T / NT Wirewound Series
0.1Ω to 175kΩ
•
±0.1% to ±10% tolerance
0.75 to 14 watts
0.75 to 14
windings available
•
Non-inductive
watts
High thermal
conductivity,
centerless ground
ceramic cores
for optimum heat
distribution and
dissipation
Weldable and
solderable leads
•
Meets or
to ±10%
all applicable MIL-R-26 ratings
±0.1%
exceeds
tolerance
Electrical Data
IRC
Style
Tolerance down to 0.1%
Non-inductive windings available
Non-inductive windings available
Meets or exceeds all applicable MIL-R-26 ratings
Meets or exceeds all applicable MIL-R-26 ratings
Similar To
MIL-R-26
Style
Silicone coat
All welded
construction
Standard winding (T...) OBSOLETE
Similar to
Maximum
Wattage Rating
Resistance Range (Ω)
All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
MIL-PRF-39007
Working
All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
1
U
V
Min
Ω
Max KΩ
Style
Voltage
---
RWR81
1
0.75
1.0
---
---
0.1
0.1
4
4.5
54.8
67.1
T-1/2
---
Electrical Data
Electrical Data
T-1/2-A81
IRC
T-1A-70
RW81
Wattage Rating
Resistance Range (Ω)
Similar to
to
Similar to
Maximun
Power Rating
Similar
---
1.0
---
0.1
12
109.5
RW70
T Standard Range (Ω)
NT Non-inductive Range (Ω)
Similar to
MIL-R-26
Maximum
MIL-PRF-39007
Working
25°C (W)
MIL-
Style
Type
MIL-R-26
Style
Working
Style
1
Voltage
U
Min
Ω
Max KΩ
PRF-39007
Style
Voltage (V)
T-1-80
2.0
12
154.9
RW80
1
RWR80
1
U
Min Ω
Max
---
KΩ
Min
0.1
Ω
Max KΩ
Style
T-1/2
-
-
0.75
0.1
4
54.8
(N)T-1/2
-
0.75
0R24
6K0
1R0
3K0
55
T-2A*
---
1
3.0
3.75
0.1
25
306.2
---
-
1.0
0.1
4.5
67.1
T-1/2-A81
RW81
RWR81
1
0R2
4K0
1R0
500R
67
(N)T-1/2-A81
RW81
RWR81
1
T-2A-69
RW69
---
---
1.0
3.0
0.1
244.9
T-1A-70
RW70
-
0.1
12
20
109.5
(N)T-1A-70
RW70
-
1
0R1
7K5
0R1
3K8
110
T-1C
-
-
.05
2K
40
109.5
T-2B-79
3.0
1
---
0.1
346.4
RW79
-
RWR89
1
(N)T-1C
-
1
0R1
4K2
0R1
2K1
110
T-1-80
RW80
RWR80
1
2.0
0.1
12
154.9
2
0R1
12K
1R7
6K0
155
(N)T-1-80
RW80
RWR80
1
T-3
---
---
4.0
5.5
0.1
38
457.2
T-2A*
-
-
3.0
0.1
25
306.2
(N)T-2A
-
-
3
0R1
20K
0R1
10K
306
T-5*
---
---
5.0
6.5
0.1
540.8
T-2A-69
RW69
-
3.0
0.1
20
45
244.9
(N)T-2A-69
RW69
-
3
0R1
25K
0R1
12K5
245
T-2B-79
RW79
RWR89
1
3.0
0.1
40
94
346.4
T-5-74
5.0
---
0.1
685.5
RW74
RWR74 / 84
1
(N)T-2B-79
RW79
RWR89
1
3
0R1
33K
0R5
12K
346
T-3
-
-
4.0
0.1
38
457.2
(N)T-3
-
4
0R1
38K
0R3
15K
457
T-6
---
-
---
6.0
7.5
0.1
65
698.2
T-5*
-
-
5.0
0.1
45
540.8
(N)T-5
-
-
5
0R1
60K
0R8
30K
541
T-6-67
RW67
---
---
5.0
6.5
0.1
773.3
T-5-74
RW74
RWR74 / 84
1
0.1
94
92
685.5
(N)T-5-74
RW74
RWR74 / 84
1
5
0R1
60K
0R8
30K
686
-
-
6.0
0.1
65
698.2
T-7*
T-6
---
---
7.0
9.0
0.1
115
1017.3
(N)T-6
-
-
6
0R1
92K
1R1
46K
698
T-6-67
RW67
-
6.5
0.1
92
773.3
(N)T-6-67
RW67
RW55
-
6.5
0R1
92K
1R1
46K
773
T-7A-55
---
---
7.0
0.1
200
1183.2
T-7*
-
-
7.0
0.1
115
1017.3
(N)T-7
-
-
7
0R1
115K
0R1
57K5
1017
T-10A-56
RW56
---
---
7.0
14.0
0.1
0.1
300
2049.4
T-7A-55
RW55
-
200
1183.2
(N)T-7A-55
RW55
-
7
0R1
175K
0R1
87K5
1183
T-10A-56
RW56
-
14.0
300
2049.4
T-10*
---
---
10.0
13.0
0.1
0.1
300
1974.8
(N)T-10A-56
RW56
-
14
0R1
150K
0R17
75K
2049
T-10*
-
-
10.0
0.1
300
1974.8
T-10-78
RW78
-
RWR78
1
10.0
---
0.1
300
1732
(N)T-10
-
10
0R1
150K
3R0
51K
1975
T-10-78
RW78
RWR78
1
10.0
0.1
300
1732
(N)T-10-78
RW78
RWR78
1
10
0R1
150K
3R0
51K
1732
T-10-68
RW68
---
---
11.0
0.1
0.1
300
1816.6
T-10-68
RW68
-
11.0
300
1816.6
(N)T-10-68
RW68
-
11
0R1
150K
0R1
75K
1817
* Available as radial lead = type TR.
Designate non-inductive winding by adding the prefix "N" to style.
1
The RWR is obsolete. The listed parts correspond to the commercial equivalent parts that are manufactured with the same procedures but lack
the burn-in screening that is required by MIL-PRF-39007
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
T / NT Wirewound Series Issue January 2010 Sheet 1 of 4
General Note
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
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.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
www.ttelectronics.com/resistors
© TT Electronics plc
© TT Electronics plc
09.17
04.20
Commercial Styles Semi-Precision
Commercial
Semi-Precision
Commercial Styles
Styles
Power
Power
Wirewound Resistors
Wirewound Resistors
Semi-Precision
T / NT Wirewound Series
Power Wirewound Resistors
Temperature Range
Standard Temperature
Coeffi
cient
T / NT Wirewound Series
Standard winding (T...) OBSOLETE
General Specifications
Characteristic U = -55°C to +275°C
±20 ppm/°C 10Ω up
±50 ppm/°C 1.0Ω to 9.9Ω
±400 ppm/°C 0.50Ω to 0.999Ω
±650 ppm/°C 0.1Ω to 0.499Ω
Available from -30 ppm/°C to +6000 ppm/°C
Temperature range for special TC’s -50°C to +150°C
1000 megohms minimum dry at 100 volts DC
Wattage rating based on operation at 25°C
Derate to zero at 275°C for "U" style rating
Special Temperature
Coeffi
cient
Insulation Resistance
Derating
Lead Material:
Tinned copperweld is standard.
Also available: Weldable Grade A nickel (bare)
Special Features:
- Radial lead available
- Resistance network packages designed to individual customer requirements
- Temperature coefficient matching and tracking to ±5 ppm
- Ratio tolerance matched sets available
Wire and Film Technologies Division
• 4222 South Staples Street • Co Ch Texas 78411 USA
rpus risti
Telephone
: 361 992 7900 •
Facsimile361 992 3377 Website ww .irctt.com
:
•
: w
T / NT Wirewound Se Issue January 2010 Sheet 2 of 4
ries
General Note
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.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
www.ttelectronics.com/resistors
© TT Electronics plc
© TT Electronics plc
04.20
09.17
Semi-Precision
Standard winding (T...) OBSOLETE
Power Wirewound Resistors
Power
Data
Wirewound Resistors
Physical
T / NT Wirewound Series
T / NT Wirewound Series
Commercial
Semi-Precision
Commercial Styles Semi-Precision
Commercial Styles
Styles
Power Wirewound Resistors
Commercial
Resistors
Power Wirewound
Styles
Semi-Precision
Physical Data
A
Length
A
Length
B
Diameter
B
Diameter
C
Diameter
C
Diameter
1 ½” (38.1mm)
Minimum
Lead Length
1 ½” (38.1mm)
Minimum
Lead Length
Dimensions (Inches and (mm))
A
Type
A
Inches
IRC / Shallcross
Style
Inches
(N)T-1/2
0.330 (±0.062)
T-1/2
(N)T-1/2-A81
T-1/2-A81
(N)T-1A-70
T-1A-70
(N)T-1C
T-1-80
(N)T-1-80
T-2A
(N)T-2A
T-2A-69
(N)T-2A-69
T-2B-79
(N)T-2B-79
T-3
(N)T-3
T-5
(N)T-5
T-5-74
(N)T-5-74
T-6
(N)T-6
T-6-67
(N)T-6-67
T-7
(N)T-7
T-7A-55
(N)T-7A-55
T-10A-56
(N)T-10A-56
T-10
(N)T-10
T-10-78
(N)T-10-78
T-10-68
(N)T-10-68
0.330 (±0.062)
0.250 (±0.032)
0.250
0.406 (±0.032)
0.406
0.303
(±0.032)
0.406 (±0.032)
0.500 (±0.062)
(±0.062)
0.500 (±0.063)
0.500 (±0.063)
0.560 (±0.062)
0.560
0.625 (±0.062)
0.625
0.875 (±0.062)
0.875 (±0.062)
0.875
1.000 (±0.062)
(±0.062)
1.000 (±0.094)
1.000 (±0.094)
1.185 (±0.062)
1.185 (±0.062)
1.375 (±0.094)
1.375
2.000 (±0.094)
2.000 (±0.094)
1.812 (±0.062)
1.812
1.780 (±0.062)
1.780 (±0.062)
1.875 (±0.063)
1.875 (±0.063)
B
Dimensions (Inches and (mm))
mm
mm
8.4 (±1.6)
8.4 (±1.6)
6.4 (±0.8)
6.4 (±0.8)
10.3(±0.8)
10.3
(±0.8)
7.7
(±0.8)
10.3 (±0.8)
12.7 (±1.6)
12.7 (±1.6)
12.7
14.2 (±1.6)
14.2
15.8 (±1.6)
15.8
22.2 (±1.6)
22.2 (±1.6)
22.2
25.4 (±1.6)
(±1.6)
25.4 (±2.4)
25.4 (±2.4)
30.0 (±1.6)
30.0 (±1.6)
35.0 (±2.4)
35.0
50.8 (±2.4)
50.8 (±2.4)
46.0 (±1.6)
46.0
45.2 (±1.6)
45.2
47.6 (±1.6)
47.6 (±1.6)
Inches
Inches
0.078 (±0.031)
0.078 (±0.031)
0.085 (±0.020)
0.085 (±0.020)
0.094 (±0.032)
0.094 (±0.032)
0.115 (±0.32)
0.094 (±0.032)
0.187 (±0.031)
0.187 (±0.031)
0.188 (±0.063)
0.188 (±0.063)
0.187 (±0.031)
0.187 (±0.031)
0.250 (±0.062)
0.250
0.312 (±0.062)
0.312 (±0.062)
0.312 (±0.062)
0.312 (±0.062)
0.313 (±0.063)
0.313 (±0.063)
0.312 (±0.062)
0.312 (±0.062)
0.469 (±0.094)
0.469 (±0.094)
0.469 (±0.094)
0.375 (±0.062)
0.375 (±0.062)
0.375 (±0.062)
0.344 (±0.094)
0.344 (±0.094)
B
mm
mm
2.0 (±0.8)
2.0 (±0.8)
2.2 (±0.5)
2.2 (±0.5)
2.4 (±0.8)
2.4 (±0.8)
2.9
2.4
4.8 (±0.8)
(±0.8)
4.8 (±1.6)
(±1.6)
4.8 (±0.8)
4.8 (±0.8)
6.3 (±1.6)
6.3
7.9 (±1.6)
7.9 (±1.6)
7.9
8.0 (±1.6)
8.0 (±1.6)
8.0 (±1.6)
8.0 (±2.4)
12 (±1.6)
12 (±2.4)
12 (±1.6)
9.5 (±2.4)
9.5 (±1.6)
9.5 (±1.6)
8.7 (±2.4)
8.7 (±2.4)
C
Inches C
mm (±0.05)
(±0.002)
Inches
mm (±0.05)
0.020
0.5
(±0.002)
0.020
0.020
0.5
0.5
0.020
0.020
0.032
0.032
0.032
0.032
0.040
0.040
0.040
0.040
0.040
0.032
0.032
0.040
0.040
0.032
0.032
0.032
0.040
0.040
0.040
0.032
0.032
0.5
0.5
0.8
0.8
0.8
0.8
1.0
1.0
1.0
1.0
1.0
0.8
0.8
1.0
1.0
0.8
0.8
0.8
1.0
1.0
1.0
0.8
0.8
Wire and Film Technologies Division
• 4222 South Staples Street • Co Ch Texas 78411 USA
rpus risti
Telephone
: 361 992 7900 •
Facsimile361 992 3377 Website ww .irctt.com
:
•
: w
T / NT Wirewound Se Issue January 2010 Sheet 3 of 4
ries
T / NT Wirewound Se Issue January 2010 Sheet 3 of 4
ries
Wire and Film Technologies Division
• 4222 South Staples Street • Co Ch Texas 78411 USA
rpus risti
Telephone
: 361 992 7900 •
Facsimile361 992 3377 Website ww .irctt.com
:
•
: w
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.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
04.20
09.17
Commercial Styles Semi-Precision
Power Wirewound Resistors
T / NT Wirewound Series
Standard winding (T...) OBSOLETE
Ordering Procedure
Ordering Procedure
Example: T1801000FLF
(T-1-80, 100 ohms ±1%, Pb-free)
Example: T1801000FLF
(T-1-80, 100 ohms ±1%, Pb-free)
T
1
T
1
8
1
0
2
1
2
8
0
2
2
1
0
1
3
3
3
0
0
0
3
0
0 F L F
F L F
4
5
4
5
6
6
1
4
5
6
4
5
6
Winding
Type
1
Value
Tolerance Termination
Packing
2
Winding
Type
1
Value
Tolerance Termination
Packing
2
T1/2
T574 3 digits + multiplier B = ±0.1% Omit for SnPb Omit for standard (73mm) tape & reel
Omit for
T1/2
T574 3 digits + multiplier B = ±0.1% Omit for SnPb Omit for standard (73mm) tape & reel
Omit for
standard T1/2A81
T6
C = ±0.25% LF = Pb-free BLK
All sizes
Bulk
R = ohms for
standard T1/2A81
T6
C=
All sizes
Bulk
R =values for
ohms <100ohms ±0.25% LF = Pb-free BLK
T667
D = ±0.5%
N = non- T1A70
Non-standard
values <100ohms D = ±0.5%
T-2A, T2-A-69,
N = non- T1A70 T1CT667 T7
inductive
F = ±1%
TBD T2-A-69, Non-standard
(63.5mm)
T-2A, T-2B-79, T-3
inductive
T1C
T7
F = ±1%
TBD
(63.5mm) & reel
tape
T180
T7A55
J = ±5%
T-2B-79, T-3
tape & reel
T180
T7A55
J = ±5%
T2A
T10A56
Non-standard
T-2A, T-2A-69,
T2A
T10A56
Non-standard
T2A69
T10
TBC T-2A-69,
(52.4mm)
T-2A,
T-2B-79 (52.4mm)
T2A69
T10 T1078
TBC
tape & reel
T2B79
T-2B-79
tape & reel
T2B79
T1078
T3
T1068
Tape & reel pack quantities
T3
T1068
Tape & reel pack quantities
T5
T-1/2 to T-5-74
1000/reel
T5
T-1/2 to T-5-74
1000/reel
T-6 to T-10-68
500/reel
T-6 to T-10-68
500/reel
1
Note 1: Legacy part numbers which include a power characteristic code U after Type are permitted.
Note 1: Legacy part numbers which include a power characteristic code U after (IRC Origin):
Note 2: For full details see PS002 - Packing Specification Axial Resistors Type are permitted.
Note 2: For full details see PS002 - Packing Specification Axial Resistors (IRC Origin):
https://www.ttelectronics.com/TTElectronics/media/ProductFiles/Resistors/ApplicationNotes/PS002-Packing-of-Axial-Resistors-IRC-Origin.pdf
https://www.ttelectronics.com/TTElectronics/media/ProductFiles/Resistors/ApplicationNotes/PS002-Packing-of-Axial-Resistors-IRC-Origin.pdf
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.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
04.20
