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Datasheet> All Categories > Passive components> The resistor> NT1A7049900.1%LF
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NT1A7049900.1%LF

Description
Fixed Resistor, Wire Wound, 1W, 499ohm, 109.5V, 0.1% +/-Tol, -20,20ppm/Cel
CategoryPassive components    The resistor   
File Size97KB，4 Pages
ManufacturerTT Electronics plc
Websitehttp://www.ttelectronics.com/
Environmental Compliance  
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NT1A7049900.1%LF Overview

Fixed Resistor, Wire Wound, 1W, 499ohm, 109.5V, 0.1% +/-Tol, -20,20ppm/Cel

NT1A7049900.1%LF Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerTT Electronics plc
package instructionAxial,
Reach Compliance Codecompliant
structureAll-Welded
JESD-609 codee3
Lead diameter0.5 mm
Lead length38.1 mm
Number of terminals2
Maximum operating temperature275 °C
Minimum operating temperature-55 °C
Package diameter2.4 mm
Package length10.3 mm
Package formAxial
method of packingTR
Rated power dissipation(P)1 W
resistance499 Ω
Resistor typeFIXED RESISTOR
seriesNT(WIREWOUND)
technologyWIRE WOUND
Temperature Coefficient-20,20 ppm/°C
Terminal surfaceMatte Tin (Sn) - with Nickel (Ni) barrier
Tolerance0.1%
Operating Voltage109.5 V

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Commercial Styles
Semi-Precision
Power Wirewound Resistors
T / NT Wirewound Series
•
•
•
•
•
0.1Ω to 300KΩ
0.75 to 14 watts
±0.1% to ±10% tolerance
Non-inductive windings available
Meets or exceeds all applicable MIL-R-26 ratings
High thermal
conductivity,
centerless ground
ceramic cores
for optimum heat
distribution and
dissipation
Weldable and
solderable leads
Silicone coat
All welded
construction
Electrical Data
IRC
Style
T-1/2
T-1/2-A81
T-1A-70
T-1-80
T-2A*
T-2A-69
T-2B-79
T-3
T-5*
T-5-74
T-6
T-6-67
T-7*
T-7A-55
T-10A-56
T-10*
T-10-78
T-10-68
Similar To
MIL-R-26
Style
---
RW81
RW70
RW80
---
RW69
RW79
---
---
RW74
---
RW67
---
RW55
RW56
---
RW78
RW68
Similar to
MIL-PRF-39007
Style
1
---
RWR81
1
---
RWR80
1
---
---
RWR89
1
---
---
RWR74 / 84
1
---
---
---
---
---
---
RWR78
1
---
Wattage Rating
U
0.75
1.0
1.0
2.0
3.0
---
3.0
4.0
5.0
5.0
6.0
---
7.0
---
---
10.0
10.0
---
V
---
---
---
---
3.75
3.0
---
5.5
6.5
---
7.5
6.5
9.0
7.0
14.0
13.0
---
11.0
Resistance Range (Ω)
Min
Ω
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
Max KΩ
4
4.5
12
12
25
20
40
38
45
94
65
92
115
200
300
300
300
300
Maximum
Working
Voltage
54.8
67.1
109.5
154.9
306.2
244.9
346.4
457.2
540.8
685.5
698.2
773.3
1017.3
1183.2
2049.4
1974.8
1732
1816.6
* 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.
A subsidiary of
TT electronics plc
T / NT Wirewound Series Issue January 2010 Sheet 1 of 4
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

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