EEWORLDEEWORLDEEWORLD

Part Number

Search

PMF1/4-3443-DB25W

Description
Fixed Resistor, Metal Film, 0.25W, 344000ohm, 350V, 0.5% +/-Tol, 25ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT
CategoryPassive components    The resistor   
File Size27KB,1 Pages
ManufacturerRCD Components Inc.
Websitehttp://www.rcdcomponents.com/
Environmental Compliance
Download Datasheet Parametric View All

PMF1/4-3443-DB25W Overview

Fixed Resistor, Metal Film, 0.25W, 344000ohm, 350V, 0.5% +/-Tol, 25ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT

PMF1/4-3443-DB25W Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerRCD Components Inc.
package instruction,
Reach Compliance Codecompli
ECCN codeEAR99
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
resistance344000 Ω
Resistor typeFIXED RESISTOR
surface mountNO
technologyMETAL FILM
Temperature Coefficient25 ppm/°C
Terminal surfaceMatte Tin (Sn)
Terminal shapeWIRE
Tolerance0.5%
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
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]
H (Min.)
.94 [24]
1.1 [28]
1.1 [28]
1.25 [32]
1.25 [32]
1.22 [31]
1.25 [32]
120
100
80
60
40
20
0
30
50
70
90
110
130
AMBIENT TEMPERATURE (°C)
150
PMF1/4S
PMF1/4
PMF1/2
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
SPECIFICATIONS
RCD
Type
PMF1/20
PMF1/10
PMF1/8S
PMF1/8
PMF1/4S
PMF1/4
PMF1/2
Wattage
@ 85°C
1/20
1/10
1/8
1/8
1/4
1/4
1/2
Voltage
Rating*
200
250
250
300
300
350
400
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
* Maximum working voltage determinedby E =
column above.
PR, E should not exceed value listed in
P/N DESIGNATION:
PMF1/10
RCD Type
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
Tolerance Code:
F=1%, D=0.5%, C=0.25%,
B=0.1%, A=0.05%, Q=0.02%, T=0.01%
Packaging:
B = Bulk, T = Tape & Reel
- 1001
-
Q
B
5 W
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.
Temp. Coefficient:
(5=5ppm, 10=10ppm, 25=25ppm, etc.)
Termination:
W= Lead-free, Q= Tin/Lead (leave blank if either is acceptable,
in which case RCD will select based on lowest price and quickest delivery
RCD Components Inc.,
520 E. Industrial Park Dr., Manchester, NH, USA 03109
Tel: (603) 669-0054 Fax:(603) 669-5455 E-mail:sales@rcdcomponents.com
www.rcdcomponents.com
FA043B
Sale of this product is in accordance with GF-061. Specifications subject to change without notice.
THS3091 Power Amplifier
The final power amplifier we use is two THS3091 in parallel to achieve the effect of current expansion, negative feedback, and amplification factor of 2. Why is there a big difference (about 200mv) be...
风亦路 Analogue and Mixed Signal
Help, schematic diagram of USB LED SMD light
I would like to know the schematic diagram of this USB LED SMD lamp with touch switch....
hai4306 LED Zone
Five-star article: Overview of RF Power Amplifier (RF PA)
Basic Concepts The RF power amplifier (RF PA) is the main part of the transmission system, and its importance is self-evident. In the front-stage circuit of the transmitter, the RF signal power genera...
btty038 RF/Wirelessly
Are the processing capabilities of DSP and CPU comparable? (100 points)
A 100MHz and a 2.6G dual-core CPU are used to perform data compression operations. Which one has better performance? How to reflect it?...
223xh Embedded System
Help cpld
StartFragmentEveryone, please help me take a look at this. Why is it like this? The chip I chose is EPM7128SLC84-10, but it is correct to choose EPM7160SLC84-10. I want to know why...
liuye455726 FPGA/CPLD
How to intercept messages on mobile?
I want to use a hook to intercept the keyboard system message, display the key value, and then continue to execute its system task. I wonder if it is possible? To put it simply, after a message is int...
zeng_jinliang Embedded System

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 500  1546  355  2665  28  11  32  8  54  1 
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