EEWORLDEEWORLDEEWORLD

Part Number

Search

RK1/4DCM12.51055F

Description
Fixed Resistor, Metal Film, 0.25W, 10500000ohm, 500V, 1% +/-Tol, 100ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT
CategoryPassive components    The resistor   
File Size98KB,2 Pages
ManufacturerKOA
Environmental Compliance  
Download Datasheet Parametric View All

RK1/4DCM12.51055F Overview

Fixed Resistor, Metal Film, 0.25W, 10500000ohm, 500V, 1% +/-Tol, 100ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT

RK1/4DCM12.51055F Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Objectid1644993959
package instructionAXIAL LEADED, ROHS COMPLIANT
Reach Compliance Codecompliant
Country Of OriginJapan
ECCN codeEAR99
YTEOL6.65
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
resistance10500000 Ω
Resistor typeFIXED RESISTOR
surface mountNO
technologyMETAL FILM
Temperature Coefficient100 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
Project of data transmission module
#include "AppCode.c"#include "stdlib.h"#include "stdio.h"void main(void){WDTCTL = WDTPW + WDTHOLD;//OSInit();////Generate semaphore The semaphore is a synchronous signal tool/////////////////////RecSe...
cassimit2014 Microcontroller MCU
Sharing ARM7 learning experience--marquee (I)
First, let's introduce NXP's MCU model classification method. Among these MCUs , LPC3000 and LH7A use ARM9 cores, LPC2000 and LH7 use ARM7 cores, and LPC1000 series use Cortex-M3 or M0 cores. The chip...
billbot501 ARM Technology
Is there any brother who has successfully implemented IAP on STM32F103?
I just downloaded an IAP PDF and example code from ST's website. It is an official example based on their development board, using the YModem protocol under HyperTerminal. The problem is that I want t...
hosdap stm32/stm8
I have just completed a CycloneIII fpga development board. I will share the problems in CycloneIII design and keep updating.
The chip I use is Cyclone III EP3C5E144, which is pin-compatible with ep3c10e144, but not compatible with ep3c16 and 25, because the user IO is too different.The package IO of qfp144 is not too much, ...
giftFPGA FPGA/CPLD
The program that can be called under wince cannot be executed!
I introduced several lib files through #pragma. Do I need to manually enter those files in the project properties? After I generated the exe file, it showed 0x8007007e error when I ran it. I copied th...
chao2641 Embedded System
A little confusion about microcontroller C language programming ~ please answer
/*8 LEDs flash from top to bottom at 200ms intervals, then from bottom to top, repeat once, then all turn off, then flash 5 times at 300ms intervals. Repeat this process. */ #include #include//Functio...
请叫我大树 51mcu

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 572  1679  1806  2050  1343  12  34  37  42  28 
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