EEWORLDEEWORLDEEWORLD

Part Number

Search

MFS1/4CCUR6493F

Description
Fixed Resistor, Metal Film, 0.25W, 649000ohm, 250V, 1% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT
CategoryPassive components    The resistor   
File Size266KB,2 Pages
ManufacturerKOA Speer
Websitehttp://www.koaspeer.com/
Environmental Compliance  
Download Datasheet Parametric View All

MFS1/4CCUR6493F Overview

Fixed Resistor, Metal Film, 0.25W, 649000ohm, 250V, 1% +/-Tol, 50ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT

MFS1/4CCUR6493F Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Objectid1273593952
package instructionAXIAL LEADED, ROHS COMPLIANT
Reach Compliance Codecompliant
Country Of OriginJapan, Mainland China, Taiwan
ECCN codeEAR99
YTEOL6.55
Other featuresSEMI-PRECISION
JESD-609 codee2
Manufacturer's serial numberMFS
Installation featuresTHROUGH HOLE MOUNT
Number of terminals2
Maximum operating temperature155 °C
Minimum operating temperature-55 °C
Package shapeTUBULAR PACKAGE
method of packingTR
Rated power dissipation(P)0.25 W
Rated temperature70 °C
GuidelineAEC-Q200
resistance649000 Ω
Resistor typeFIXED RESISTOR
surface mountNO
technologyMETAL FILM
Temperature Coefficient50 ppm/°C
Terminal surfaceTin/Copper (Sn/Cu)
Terminal shapeWIRE
Tolerance1%
Operating Voltage250 V
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
AEC-Q200 Qualified: MF1/4, MFS1/4, MFS1/2
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)
.354±0.4
(9.0±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)
.024
(0.6)
.031
(0.8)
1.50±.118
(38.0±3.0)
0.94 min.
(24.0 min.)
1.50±.118
(38.0±3.0)
1.10±.118
(28.0±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
MF1/4
30
20
10
0
0
25
50
75
100
MFS1/2
MF1/2
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
* Lead length changes depending on taping and forming.
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, M12.5
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-192 E-24 E-96
E-24
-55°C
MFS1/4C
C: ±50
49.9 -
to
0.25W
300V
10 - 1M
250V
300V
562k
MFS1/4D
D: ±100
+155°C
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/18/12
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
109
resistors
MF, MFS, RK
Qualcomm adds power management chips to cover all market segments
"We are redefining the concept of 'system solution,'" said Dr. Sanjay Jha, president of Qualcomm's CDMA Technologies Group. "Now, mobile phones in every market can benefit from the higher power effici...
zbz0529 Power technology
E-racing quadcopter
[i=s] This post was last edited by paulhyde on 2014-9-15 03:20 [/i] Predictions for the 2014 TI Cup e-sports competition quadcopter requirements...
leeli5845203344 Electronics Design Contest
What are some good USB packet capture tools?
I've been working on USB recently. I'd like to ask if any of you have any good USB packet capture tools for Windows and Linux, preferably free or cracked. I only know USBView for Linux, and I only fou...
xuyangsuccess Embedded System
Moments of Life
On May 12, 2008, at 14:40, a 2.4-magnitude earthquake occurred in Beijing, with Zhichun Road as the epicenter. The staff of Ginza and Core Block of the Electronic Integrated Circuit Design Park immedi...
songbo MCU
EEWORLD University Hall----"Lazy" computer remote control made by R7F
"Lazy" computer remote control made by R7F : https://training.eeworld.com.cn/course/2315...
youki12345 Mobile and portable
Sincerely recruiting embedded software and hardware engineers
Familiar with 51 MCU and proteus simulation 2. Familiar with STM32 and FPGA and have independent development experience 3. Be patient Q2391138566...
x03419 Recruitment

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2516  1516  1177  643  345  51  31  24  13  7 
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