EEWORLDEEWORLDEEWORLD

Part Number

Search

RK1/4BCM12.57323F

Description
Fixed Resistor, Metal Film, 0.25W, 732000ohm, 500V, 1% +/-Tol, 350ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT
CategoryPassive components    The resistor   
File Size98KB,2 Pages
ManufacturerKOA
Environmental Compliance  
Download Datasheet Parametric View All

RK1/4BCM12.57323F Overview

Fixed Resistor, Metal Film, 0.25W, 732000ohm, 500V, 1% +/-Tol, 350ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT

RK1/4BCM12.57323F Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Objectid1644993183
package instructionAXIAL LEADED, ROHS COMPLIANT
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresSEMI-PRECISION
JESD-609 codee2
Manufacturer's serial numberRK
Installation featuresTHROUGH HOLE MOUNT
Number of terminals2
Maximum operating temperature155 °C
Minimum operating temperature-55 °C
Package shapeTUBULAR PACKAGE
Rated power dissipation(P)0.25 W
Rated temperature70 °C
resistance732000 Ω
Resistor typeFIXED RESISTOR
surface mountNO
technologyMETAL FILM
Temperature Coefficient350 ppm/°C
Terminal surfaceTin/Copper (Sn/Cu)
Terminal shapeWIRE
Tolerance1%
Operating Voltage500 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
Harmony File for Altium Designer 16.0.5 Build 271 (Activation Method)
[font=宋体][size=5][color=#ff0000][b][url=http://www.ndiy.cn/thread-40322-1-1.html]Harmony files for Altium Designer 16.0.5 Build 271[/url], can be activated with previous licenses. [/b][/color][/size][...
浩瀚星空 PCB Design
Urgently recruit Windows CE/Mobile driver development (Nanjing 5000-9000)
Work location: Nanjing Salary: 5K-9K Windows CE/Mobile driver development: Requirements: 1. Proficient in C/C++, understand object-oriented thinking, and have good programming habits; 2. Have Windows ...
geniusxsy Embedded System
【Experience + Innovation】Welcome to the 2016 Texas Instruments Industrial Applications Seminar
[font=ARIAL][size=1]If you are still having problems viewing this message, please [/size][/font][url=https://www.eeworld.com.cn/ads/clickads.php? id=6879]click here[/url][font=ARIAL][size=1] for addit...
EEWORLD社区 TI Technology Forum
Infrared remote control six-legged crawler
[i=s]This post was last edited by paulhyde on 2014-9-15 09:10[/i]I have been on the forum for a long time and have posted a lot of things. It's time to show my appreciation!...
tmstd Electronics Design Contest
Atmega_128_modbus communication
ATmega128 microcontroller serial communication, Modbus protocol, hardware tested, intact...
15075039ZQ Microchip MCU
PCB project path storage problem
How do I save the PCB project on the left to the specified folder on the right?...
NJMKL PCB Design

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2615  133  530  1744  2304  53  3  11  36  47 
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