EEWORLDEEWORLDEEWORLD

Part Number

Search

MF1/4ECVTPA2430B

Description
Fixed Resistor, Metal Film, 0.25W, 243ohm, 250V, 0.1% +/-Tol, 25ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT
CategoryPassive components    The resistor   
File Size98KB,2 Pages
ManufacturerKOA Speer
Websitehttp://www.koaspeer.com/
Environmental Compliance  
Download Datasheet Parametric View All

MF1/4ECVTPA2430B Overview

Fixed Resistor, Metal Film, 0.25W, 243ohm, 250V, 0.1% +/-Tol, 25ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT

MF1/4ECVTPA2430B Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerKOA Speer
package instructionAXIAL LEADED, ROHS COMPLIANT
Reach Compliance Codecompli
ECCN codeEAR99
Other featuresSEMI-PRECISION
structureCylindrical
JESD-609 codee2
Lead diameter0.6 mm
Manufacturer's serial numberMF
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 packingAMMO PACK
Rated power dissipation(P)0.25 W
Rated temperature70 °C
resistance243 Ω
Resistor typeFIXED RESISTOR
seriesMF
surface mountNO
technologyMETAL FILM
Temperature Coefficient25 ppm/°C
Terminal surfaceTin/Copper (Sn/Cu) - hot dipped
Terminal shapeWIRE
Tolerance0.1%
Operating Voltage250 V
MF, MFS, RK
general purpose metal film leaded resistor
EU
features
Semi-precision metal film resistors
The discharge path resistor is recognized by UL 1676 and
c-UL (CAS-C22.2 No.1-M94). (File No. E159326) (RK only)
Meets requirements of MIL-R-22684
Suitable for automatic machine insertion
MFS two times the power rating of the standard body type
Marking: Blue-gray body color with color-coded bands
Products with lead-free terminations meet EU RoHS
and China RoHS requirements
dimensions and construction
L
D
Trimming Line
Ceramic Core
d
l
Type
MFS1/4
L (ref.)
.126±.008
(3.2±0.2)
.248±.02
(6.3±0.5)
.248±.02
(6.3±0.5)
.374±.04
(9.5±1.0)
.610±.02
(15.5±0.5)
.248±.02
(6.3±0.5)
.374±.04
(9.5±1.0)
.610±.04
(15.5±1.0)
Dimensions
inches
(mm)
C (max.)
D
d (nom.)
.133
(3.4)
.280
(7.1)
.280
(7.1)
.437
(11.1)
.721
(18.3)
.280
(7.1)
.437
(11.1)
.720
(18.3)
.066
(1.7
+.007
-.004
+0.2
)
-0.1
l
.018
(0.45)
.024
(0.6)
.024
(0.6)
.024
(0.6)
.031
(0.8)
.024
(0.6)
.031
(0.8)
.031
(0.8)
1.50±.118
(38.0±3.0)
0.94 min.
(24.0 min.)
1.50±.118
(38.0±3.0)
1.18±.118
(30.0±3.0)
Marking
Resistive
Film
End
Cap
Lead
Wire
MF1/4
MFS1/2
Insulation Coating
C
.091±.012
(2.3±0.3)
.091±.012
(2.3±0.3)
.138±.016
(3.5±0.4)
.217±.02
(5.5±0.5)
.091±.012
(2.3±0.3)
.138±.016
(3.5±0.4)
.217±.02
(5.5±0.5)
Derating Curve
100
80
% Rated Power
60
40
20
0
-60 -40 -20
-55
Surface Temperature Rise
70
Temperature Rise (°C)
60
50
40
30
20
10
0
0
25
50
75
100
MF1/2
MFS1/2,MF1/4,
MF1/2
(+2%&+5%)
MF1/4
MF1
MFS1/4
MF1/2
MF1
RK1/4
RK1/2
RK1
0
80 100 120 140 160
70
155
Ambient Temperature
(°C)
20
40
60
% Rated Power
ordering information
New Part #
MF
Type
MF
MFS
RK
1/4
Power
Rating
1/4: 0.25W
1/2: 0.50W
1: 1W
L
T.C.R.
E: ±25
C: ±50
D: ±100
L: ±200
G: ±250
B: ±350
C
Termination
Material
C: SnCu
T52
Taping and Forming
1/4: T26, T52, VT, VTP,
VTE, MT, M, U,
M10, M25
1/2: T26, T52, VTP,
VTE, M12.5, M15
1: T521
R
Packaging
A: Ammo
R: Reel
R20
Nominal
Resistance
+2%: 2 signifi-
cant figures +
1 multiplier
+0.5%,+1%:
3 significant
figures + 1
multiplier
“R” indicates
decimal on
value <100Ω
J
Tolerance
B: ±0.1%
C: ±0.25%
D: ±0.5%
F: ±1%
G: ±2%
J: ±5%
For further information on packaging,
please refer to Appendix C.
applications and ratings
Minimum
Absolute Absolute
Resistance Range (Ω)
Power
Operating
Part
Dielectric
T.C.R.
Maximum Maximum
Rating
Temperature
Designation
Withstanding (ppm/°C)
(B±0.1%) (C±0.25%) (D±0.5%) (F±1.0%) (G±2.0%) (J±5.0%)
Working Overload
@ 70°C
Range
Voltage
Voltage
Voltage
E-24
E-96
E-96
E-24 E-96 E-24 E-96
E-24
MFS1/4C
MFS1/4D
MFS1/4L
0.25W
300V
C: ±50
D: ±100
L: ±200
49.9 - 562k
10 - 1M
2.2 - 2.2M
250V
300V
-55°C
to
+155°C
1/13/09
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
99
resistors
Which of the two ATMEL emulators is better?
Which is better, atmel-ice or atmel sam-ice? We are using sam-ice now. When we were programming in batches, ICs were damaged. 50pcs, 5K output. I don't know if it is a problem with the programmer. I h...
JLennon Microchip MCU
Reverse power supply problem
Everyone, I am using the MSP430F449 chip, which is powered by 3V. I accidentally connected the power supply in reverse. It lasted for a few seconds, but the chip was not hot. Is the chip broken? At pr...
3134162 Microcontroller MCU
Optical coupling circuit needs help
Please help me figure out why the input AC signal output is DC...
桃花纷飞 Analog electronics
Regarding the reset pin voltage, why can't it be raised high? ? ?
Hello everyone, I use the MSP430F6736 microcontroller, and I drew the minimum system myself, but I can't burn the program. Now I tested the voltage of the reset pin and found that it was only 0.3V, wh...
x459685584 Microcontroller MCU
【CN0022】Precision, Unipolar, Inverting Conversion Using the AD5546/AD5556 DAC
Circuit Function and AdvantagesThis circuit uses the AD5546/AD5556 current output DAC, the ADR03 precision voltage reference, and the AD8628 operational amplifier to achieve precision, unipolar, inver...
EEWORLD社区 ADI Reference Circuit
c) 3dB bandwidth: 2Δf0.7 = 300kHz; the fluctuation within the band is no more than 2dB;
[i=s] This post was last edited by paulhyde on 2014-9-15 04:01 [/i] c) 3dB bandwidth: 2Δf0.7 = 300kHz; the intra-band fluctuation is no more than 2dB; What does the intra-band fluctuation no more than...
shelher Electronics Design Contest

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1410  1342  1962  572  1744  29  28  40  12  36 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号