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MF254991BTR

Description
Fixed Resistor, Metal Film, 0.25W, 4990ohm, 250V, 0.1% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT
CategoryPassive components    The resistor   
File Size164KB,1 Pages
ManufacturerMeritek Electronics
Websitehttp://www.meritekusa.com
Environmental Compliance
Related ProductsFound2parts with similar functions to MF254991BTR
Download Datasheet Parametric View All

MF254991BTR Overview

Fixed Resistor, Metal Film, 0.25W, 4990ohm, 250V, 0.1% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT

MF254991BTR Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
package instructionAxial,
Reach Compliance Codecompli
ECCN codeEAR99
structureTubul
Lead diameter0.55 mm
Lead length28 mm
Installation featuresTHROUGH HOLE MOUNT
Number of terminals2
Maximum operating temperature155 °C
Minimum operating temperature-55 °C
Package diameter2.3 mm
Package length6.3 mm
Package shapeTUBULAR PACKAGE
Package formAxial
method of packingTR
Rated power dissipation(P)0.25 W
Rated temperature70 °C
resistance4990 Ω
Resistor typeFIXED RESISTOR
surface mountNO
technologyMETAL FILM
Temperature Coefficient50 ppm/°C
Terminal shapeWIRE
Tolerance0.1%
Operating Voltage250 V
Base Number Matches1
Metal Film Resistors
MF
Series
MERITEK
F
EATURES
Economically priced for commercial and industrial applications
Wide selection of power ratings and resistance values
EIA color coding
Resistance to industrial solvent
Standard tape & reel package
P
ART
N
UMBERING
S
YSTEM S
Meritek Series
Power Rating
CODE
12
0.125
W
16
0.16W
25
0.25W
20
0.50W
MF
100
1W
200
2W
25
F
1003
F
TR
Temperature Coeffient
CODE
CODE
C C
±10 ppm/°C
±10 p
p
m/°C
F F
±
ppm/°C
25
ppm/°C
±25
GBlank
H
±50 m/
C
±50
pp
ppm/°C
Resistance
First 3 digits are significant
4
TH
digit is multiplier
“R” indicates decimal for values below 10 ohm
Tolerance
CODE
B
0.1%
D
±0.5%
F
±1%
Power derating curve
70
Rated Load(%)
Tape & Reel
Dimensions
Style
Normal
MF-12 v
MF-12
MF-25
MF-50
MF-100
MF-200
Miniature
MF25s
MF25s
MF50s
MF1Ws
MF2Ws
MF3Ws
L
3.3±
0.4
0.2
3.3±
0.7
0.2
6.3±0.5
9.0±0.5
11.5±1.0
15.5±1.0
1.8±0.3
1.8±0.3
2.3±0.3
3.2±0.5
4.5±0.5
5.0±0.5
Dimensions(mm)
D
29±2.0
29±2.0
28±2.0
26±2.0
35±2.0
32±2.0
H
d
0.45±0.03
0.45±0.03
0.55±0.03
0.65±0.03
0.78±0.03
0.78±0.03
Electrical Characteristics
Power rating at 70
STYLE
Operating Temp. Range
Max. Working Voltage
Max. Overload Voltage
Dielectric Withstanding volt.
TEMP. COEFFICIENT
Value Range.
1%/ 0.5%
Value Range.
0.25%/ 0.1%
Specifications are
subject to change without notice.
200V
400V
300V
200V
400V
400V
250V
500V
500V
300V
600V
500V
0.125W
MF-12
0.25W
MF-25S
0.25W
MF-25
0.5W
MF-50S
0.5W
MF-50
1W
MF-1WS
1W
MF-100
2W
MF2WS
2W
MF-200
3W
MF3WS
55
350V
700V
500V
to
155
400V
800V
700V
450V
1000V
1000V
500V
1000V
1000V
500V
1000V
1000V
500V
1000V
1000V
15ppm/
25ppm/
10
~1 M
50ppm/
100ppm/
E96 series
E192 series
rev.6a
100 ~100K

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