EEWORLDEEWORLDEEWORLD

Part Number

Search

MF1/4ECT52R7503B

Description
Fixed Resistor, Metal Film, 0.25W, 750000ohm, 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

MF1/4ECT52R7503B Overview

Fixed Resistor, Metal Film, 0.25W, 750000ohm, 250V, 0.1% +/-Tol, 25ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT

MF1/4ECT52R7503B 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
Lead length30 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 packingTR
Rated power dissipation(P)0.25 W
Rated temperature70 °C
resistance750000 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
More than 5 million new mobile phones have been infected with Trojan viruses, most of which are "old people's phones"!
Have you ever bought a cell phone for your family? Yesterday, a colleague recommended a piece of news like this, and I was shocked after reading it!Some people on the Internet specialize in collecting...
eric_wang Talking
F28335 has not been able to run, and it says it is in low power state
May I ask what is wrong with my DSP? I am using XDS510, plus emulator. Every time I power on, I can connect to the emulator, and the program can be burned into it. When I run it directly, there will b...
袁文涛 DSP and ARM Processors
Bidding now: Lierda CC430 Development Kit September 6th 12:00-September 7th 11:59
[size=4][color=#ff0000][b]Bidding dynamics: yang_alex 1100 core coins[/b][/color][/size] [hr][size=4] This event is supported by [url=https://bbs.eeworld.com.cn/thread-511067-1-1.html]EEWORLD Developm...
okhxyyo Talking
Does anyone know the topic of today's comprehensive assessment?
Does anyone know the topic of the closed-ended assessment?...
wyf123 Electronics Design Contest
EEWORLD University ---- TI GaN-based high-frequency (1.2MHz) high-efficiency 1.6kW high-density critical mode (CrM) totem pole power factor correction (PFC) converter application introduction
Application introduction of TI's GaN-based high-frequency (1.2MHz), high-efficiency, 1.6kW, high-density critical mode (CrM) totem pole power factor correction (PFC) converter : https://training.eewor...
hi5 Integrated technical exchanges
Principle of Hall Sensor
[color=#252525][font=宋体][size=4]Principle of Hall Sensor[/size][/font][/color] [font=宋体][size=4][color=#252525] The Hall detection technology can overcome these shortcomings of the mutual inductor, an...
Jacktang Analogue and Mixed Signal

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 361  1892  512  1583  746  8  39  11  32  16 
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