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RC55LFC2490AA

Description
Fixed Resistor, Metal Film, 0.25W, 249ohm, 350V, 0.05% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED
CategoryPassive components    The resistor   
File Size436KB,4 Pages
ManufacturerTT Electronics plc
Websitehttp://www.ttelectronics.com/
Environmental Compliance
Download Datasheet Parametric View All

RC55LFC2490AA Overview

Fixed Resistor, Metal Film, 0.25W, 249ohm, 350V, 0.05% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED

RC55LFC2490AA Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Objectid145060025232
package instructionAXIAL LEADED
Reach Compliance Codecompliant
Country Of OriginUK
ECCN codeEAR99
YTEOL7.05
Other featuresPRECISION
structureTubular
JESD-609 codee3
Lead diameter0.6 mm
Installation featuresTHROUGH HOLE MOUNT
Number of terminals2
Maximum operating temperature155 °C
Minimum operating temperature-55 °C
Package diameter2.5 mm
Package length7.2 mm
Package formAxial
method of packingAMMO PACK
Rated power dissipation(P)0.25 W
Rated temperature70 °C
resistance249 Ω
Resistor typeFIXED RESISTOR
surface mountNO
technologyMETAL FILM
Temperature Coefficient50 ppm/°C
Terminal surfaceTin (Sn) - hot dipped
Terminal shapeWIRE
Tolerance0.05%
Operating Voltage350 V
Precision Metal Film Resistors
RC series
Features
Available to EN140101 & IECQ-CECC40101 release
Resistance tolerance down to 0.05%
Wide resistance range
Low noise and negligible voltage coefficient
Screened parts available for critical applications
Temperature Coefficient of Resistance down to 5 ppm/°C
Options for RoHS compliant and Lead bearing wire finishes
All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Electrical Data
Commercial
Power rating at 70° C
Resistance range
Limiting element voltage
Isolation voltage
TCR (20 to +70° C)
Resistance tolerance
EN140101-806 Requirements
Power rating at 70° C
Resistance range
Limiting element voltage
Isolation voltage
TCR
Resistance tolerance
watts
ohms
volts
volts
ppm/° C
%
H
0.063
200
280
J
0.125
200
280
K
0.25
250
350
watts
ohm
volts
volts
ppm/° C
%
B
0.25
56R – 820K
350
500
RC55
0.25
1R to 4M
350
500
RC65
0.5
1R to 4M
350
750
5, 10, 15, 25, 50, 100
0.05, 0.1, 0.25, 0.5 & 1
C
0.5
56R – 1M0
350
750
5, 10, 15, 25, 50, 100
0.05, 0.1, 0.25, 0.5 & 1
K
0.25
10R to 1M
250
350
15, 25, 50, 100
0.05, 0.1, 0.25., 0.5 & 1
A
0.125
1R to 1M
200
280
B
0.25
1R to 1M
250
350
B
0.25
10R to 1M
250
350
15, 25, 50, 100
0.05, 0.1, 0.25, 0.5 & 1
C
0.5
10R to 1M
350
500
See resistance
restrictions
L
0.5
10R to 1M
350
500
See resistance
restrictions
See resistance
restrictions
RC70
1.0
1R to 10M
500
700
See resistance
restrictions
Notes
IECQ-CECC
1-004 Requirements
CECC 4010
40101-004 Requirements
Power rating at 70° C
Resistance range
Limiting element voltage
Isolation voltage
TCR
Resistance tolerance
watts
volts
volts
ppm/° C
%
ohms 1R to 1M 1R to 1M 1R to 1M
IECQ-CECC
1-804 Requirements
CECC 4010
40101-804 Requirements
Power rating at 70° C
Resistance range
Limiting element voltage
Isolation voltage
TCR
Resistance tolerance
watts
ohms
volts
volts
ppm/° C
%
These tables indicate the EN140101 & CECC40101 specification requirements, and these are met or exceeded by the corresponding RC series products.
s.
Standard values
Thermal impedance
Ambient temperature range
° C/watt
°C
110
E24, E96 preferred
70
-55 to +155
60
Any value
to order
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
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