EEWORLDEEWORLDEEWORLD

Part Number

Search

PMF1/4-2152-QB25W

Description
Fixed Resistor, Metal Film, 0.25W, 21500ohm, 350V, 0.02% +/-Tol, 25ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT
CategoryPassive components    The resistor   
File Size75KB,1 Pages
ManufacturerRCD Components Inc.
Websitehttp://www.rcdcomponents.com/
Environmental Compliance
Download Datasheet Parametric View All

PMF1/4-2152-QB25W Overview

Fixed Resistor, Metal Film, 0.25W, 21500ohm, 350V, 0.02% +/-Tol, 25ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT

PMF1/4-2152-QB25W Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerRCD Components Inc.
package instruction,
Reach Compliance Codecompli
Other featuresULTRA PRECISION
JESD-609 codee3
Manufacturer's serial numberPMF
Installation featuresTHROUGH HOLE MOUNT
Number of terminals2
Maximum operating temperature150 °C
Minimum operating temperature-55 °C
Package shapeTUBULAR PACKAGE
method of packingBULK
Rated power dissipation(P)0.25 W
Rated temperature85 °C
resistance21500 Ω
Resistor typeFIXED RESISTOR
surface mountNO
technologyMETAL FILM
Temperature Coefficient25 ppm/°C
Terminal surfaceMatte Tin (Sn)
Terminal shapeWIRE
Tolerance0.02%
Operating Voltage350 V
Base Number Matches1
ULTRA PRECISION METAL FILM RESISTORS
RESISTORS CAPACITORS COILS DELAY LINES
PMF SERIES
RoHS
Term.W is
RoHS
compliant
& 260°C
compatible
Tolerances to ±0.01%, TC’s to ±3ppm/°C
Exceptional performance levels
Extremely low noise, reactance, voltage coefficient
All sizes available on Tape & Reel
OPTIONS
Option S: miniature size
Option ER: 100 hour burn-in (full rated W
25°C
)
Also available: matched sets, axial and vertical cut &
formed leads, hi-rel screening, special marking, hermetic
seal, non-standard values, increased power & voltage, etc.
Customized components are an RCD speciality!
RCD’s PMF Series meets the need for ultra-precision performance
when product reliability is a must. Stability levels (comparable
to those of precision wirewound resistors), coupled with the
excellent high-frequency performance of film resistors, makes
the PMF Series the universal choice. State-of-the-art deposition
and trim equipment enables the industry’s widest resistance
range. The exceptional performance of this series provides new
opportunities for circuit designers to obtain the utmost in long
term reliability without the need for post circuit trimming.
H
→←
L
d
D
Inch [mm]
DERATING:
Derate W and V per graph when ambient temp exceeds 85°C
85°
% OF RATED POWER
DIMENSIONS
RCD
Type
PMF1/20
PMF1/10
PMF1/8S
PMF1/8
PMF1/4S
L
± .032 [.8]
.150 [3.8]
.280 [7.1]
.280 [7.1]
.380 [9.6]
.380 [9.6]
.578 [14.7]
.736 [18.7]
D
± .025 [.6]
.065 [1.7]
.105 [2.7]
.105 [2.7]
.140 [3.5]
.140 [3.5]
.189 [4.8]
.250 [6.35]
d
± .003 [.08]
.018 [.45]
.025 [.6]
.025 [.6]
.025 [.6]
.025 [.6]
.025 [.6]
.031 [.8]
.031 [.8]
H (Min.)
.94 [24]
1.1 [28]
1.1 [28]
1.16 [29.5]
1.16 [29.5]
1.16 [29.5]
1.16 [29.5]
1.30 [33]
120
100
80
60
40
20
0
30
50
70
90
110
130
AMBIENT TEMPERATURE (°C)
150
PMF1/4
PMF1/2
PMF1
.79 [20] Max .315 [8] Max
TYPICAL PERFORMANCE
Temp.Coefficient (-20 to +85°C,
25ppm/°C (std), 15ppm,
Ref 25°C)
10ppm, 5ppm, 3ppm
Thermal Shock (-55~ +85°C, 5cyc 1/2hr)
0.02%
Moisture Resist.* (MIL-STD-202, M.106)
0.08%
Resistance to Solder Heat (260°C, 10S)
0.02%
Short Time Overload (2.5x RCWV, 5S,
0.01% (.02% Opt.S)
NTE 1.5xVR)
Life (1000 hrs., full power)
0.02% (.05% Opt.S)
Shelf Life (Max. per year)
50 P P M
Dielectric Strength
500V (300V PMF1/20)
Operating Temperature
-55 to +150°C
* To ensure utmost reliability, care should be taken to avoid potential sources
of ionic contamination.
SPECIFICATIONS
RCD
Type
PMF1/20
PMF1/10
PMF1/8S
PMF1/8
PMF1/4S
PMF1/4
PMF1/2
PMF1
Wattage
@ 85°C
1/20
1/10
1/8
1/8
1/4
1/4
1/2
1
Voltage
Rating*
200
250
250
300
300
350
400
500
Resistance
R an g e
10
to 604K
10
to 1.5Meg
10
to 1.5Meg
10
to 2 Meg
10
to 2 Meg
10
to 5 Meg
10
to 10 Meg
10
to 15 Meg
* Maximum working voltage determined by E = ( PR)
1/2
, E not to exceed value listed in column above.
MATCHED SETS AND NETWORKS
RCD’s experience in matching resistors for sets and
networks can result in an economical solution for many
circuits. Cost savings up to 50% can be achieved by allowing
relatively loose absolute tolerances but tight matching
requirements by pair or set. Resistance matching is
available to 0.01% and T.C. tracking to ±1ppm/°C.
P/N DESIGNATION:
RCD Type
PMF1/10
- 1001
-
Q B 5 W
Options:
S, ER, etc. (leave blank if standard)
Resis. Code:
3 signif. figures & multiplier,
e.g. 1R00= 1Ω, 10R0=10Ω, 1000= 100Ω, 1001=1KΩ,
1002=10KΩ, 1003=100KΩ, 1004=1MΩ,1005=10MΩ
Tol. Code:
F=1%, D=.5%, C=.25%,B=.1%, A=.05%, Q=.02%, T=.01%
Packaging:
B = Bulk, T = Tape & Reel
Temp. Coefficient:
(5=5ppm, 10=10ppm, 25=25ppm, etc.)
Termination:
W= Lead-free, Q= Tin/Lead (leave blank if either is acceptable
RCD Components Inc,
520 E.Industrial Park Dr, Manchester, NH, USA 03109
rcdcomponents.com
Tel: 603
-
669
-
0054 Fax: 603
-
669
-
5455 Email:sales@rcdcomponents.com
FA043C
Sale of this product is in accordance with GF-061. Specifications subject to change without notice.
61
[Me and WEBENCH] Comparison of power supply solutions based on TMS320VC33DSP control board (physical comparison test)
[i=s] This post was last edited by fengye5340 on 2014-1-6 13:41 [/i] [align=left][size=4][color=Blue][b][font=仿宋,仿宋_GB2312][size=14.0pt]1. [Introduction to the original solution] [/size][/font][/b][/c...
fengye5340 Analogue and Mixed Signal
Which modules in Quartus occupy on-chip memory?
Which modules in quartus occupy on-chip memory? How can I see which IPs occupy how many M4K modules? Thank you.10485760 is 10Mbit. Is this the size of on-chip memory?The M4K of EP2C35 is 105 RAM, whic...
tianma123 FPGA/CPLD
How can I reset the MCU (registers need to be reset) via software (writing code) on LPC1788?
As the title says, I hope to send a command from the host computer to reset the MCU, reset all registers, and execute the program from 0x00000000...
Heguoyao NXP MCU
Methods to improve the flash erase and write life of MSP430G series microcontrollers
[color=rgb(82, 82, 82)][font=Arial, sans-serif][size=12px][b]Methods to Improve the Flash Erase Life of MSP430G Series MCUs[/b][/size][/font][/color] [color=rgb(82, 82, 82)][font=Arial, sans-serif][si...
蓝雨夜 Microcontroller MCU
Intel82551 network card large packets (65535 bytes) cannot be transmitted
I am working on an MPC8377 board, which has an Intel82551 PCI network card and an Intel82574 pci-e network card on board. The version of vxworks is 6.6. I used command line to compile before, and the ...
echoyang Embedded System
MSP430 User Experience
I really started using 430 after I changed my job. The new project was implemented with 430 MCU, mainly because of the micro-power consumption function of 430. I really felt the power of this MCU. In ...
zengbo84 Microcontroller MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2280  1197  1000  528  200  46  25  21  11  5 
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