EEWORLDEEWORLDEEWORLD

Part Number

Search

303139U-203R-D-B-L

Description
Fixed Resistor, Metal Foil, 0.25W, 203ohm, 47V, 0.5% +/-Tol, -.2,.2ppm/Cel, 2412
CategoryPassive components    The resistor   
File Size503KB,7 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Download Datasheet Parametric View All

303139U-203R-D-B-L Overview

Fixed Resistor, Metal Foil, 0.25W, 203ohm, 47V, 0.5% +/-Tol, -.2,.2ppm/Cel, 2412

303139U-203R-D-B-L Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerVishay
package instructionSMT, 2412
Reach Compliance Codecompliant
ECCN codeEAR99
structureMolded Chip
Manufacturer's serial number303139
Number of terminals2
Maximum operating temperature125 °C
Minimum operating temperature-55 °C
Package height2.49 mm
Package length5.99 mm
Package formSMT
Package width3.2 mm
method of packingBulk
Rated power dissipation(P)0.25 W
resistance203 Ω
Resistor typeFIXED RESISTOR
series303139
size code2412
technologyMETAL FOIL
Temperature Coefficient-.2,.2 ppm/°C
Tolerance0.5%
Operating Voltage47 V
303139, 303140
Vishay Foil Resistors
Models # 303139 and 303140 - Molded Surface Mount Space and Military
Grade Resistors SMRxDZ with Screen/Test Flow in Compliance with
EEE-INST-002, (Tables 2A and 3A, Film/Foil, Level 1) and MIL-PRF-55182
FEATURES
Temperature coefficient of resistance (TCR):
± 0.2 ppm°C typical (- 55 °C to + 125 °C, + 25 °C ref.)
Tolerance: to ± 0.02 %
Power coefficient of resistance (PCR)
“ΔR due to self heating”: 5 ppm at rated power
Flexible terminations ensure minimal stress transference
from the PCB due to a difference in thermal coefficient of
expansions (TCE)
Electrostatic discharge (ESD) up to 25 000 V
Load life stability: ± 0.005 % (70 °C, 2000 h at rated power)
Resistance range: 5
Ω
to 40 kΩ
Vishay Foil resistors are not restricted to standard values;
specific “as requested” values can be supplied at no extra
cost or delivery (e.g. 1K2345 vs. 1K)
Maximum power: to 600 mW at 70 °C
Non-inductive, non-capacitive design
Current noise: - 40 dB
Voltage coefficient: < 0.1 ppm/V
Non-inductive: < 0.08 µH typical
Non hot spot design
Terminal finish: tin/lead alloy
Matched sets with TCR tracking are available upon
request
For oriented performances please contact us
For prototype units, append a “U” to the model number
(example: 303139U). These units pass all tests per table 3
(page 4) with no destructive qualification testing required
(table 4, page 4). For more information, please contact
foil@vishaypg.com
INTRODUCTION
The 303139, 303140 are ultra high precision molded surface
mountable resistors offering all the elements of precision;
including low TCR, tight tolerance, long term stability, low
noise, low thermal EMF, and non-measurable voltage
coefficient. One of the important parameters influencing
stability is the temperature coefficient of resistance (TCR).
Although the TCR of foil resistors is considered extremely
low, this characteristic has been further refined over the
years. These resistors utilize ultra high precision Bulk Metal
®
Z-Foil.
The Z-Foil technology provides a significant reduction of
the resistive element’s sensitivity to ambient temperature
variations (TCR) and to self heating when power is applied
(power coefficient).
Voltage division with tight tracking < 2 ppm/°C can be
achieved with 2
randomly
selected units even with a large
ratio between the two values.
Our application engineering department is available to
advise and make recommendations.
TABLE 1 - TOLERANCE AND TCR VS.
RESISTANCE VALUE
(- 55 °C to + 125 °C, + 25 °C ref.)
VALUE
250
Ω
to 40 kΩ
50
Ω
to < 250
Ω
20
Ω
to < 50
Ω
10
Ω
to < 20
Ω
5
Ω
to < 10
Ω
ABSOLUTE
TOLERANCE
± 0.02 %
± 0.05 %
± 0.1 %
± 0.2 %
± 0.5 %
TYPICAL TCR AND
MAX. SPREAD
(ppm/°C)
± 0.2 ± 1.8
± 0.2 ± 1.8
± 0.2 ± 2.8
± 0.2 ± 4.8
± 0.2 ± 6.8
FIGURE 1 - POWER DERATING CURVE
200
175
Rated Power (%)
150
125
100
75
50
25
0
- 75
- 25
+ 25
+ 75
+ 125
Ambient Temperature (°C)
+ 175
- 55 °C
+ 70 °C
Document Number: 63165
Revision: 27-Jul-10
For any questions, contact:
foil@vishaypg.com
www.foilresistors.com
1
Exploring Programmable Gain Amplifier Driving Reference Pin
[p=20, null, left][font=微软雅黑][size=3][color=#000000]A programmable gain amplifier (PGA) is a special amplifier structure (see Figure 1) that features a trimmed internal resistor network that provides ...
wstt Analogue and Mixed Signal
Does anyone have a PCB gallery of the mini SD card holder?
I don't have the real thing or sample pictures, if anyone has it, just send me a PCB picture :lol...
shicong PCB Design
What is the display principle and driving command of single chip LCD12864?
What are the issues that need to be paid attention to when writing a driver?...
06050341 Embedded System
Basic Electronics Knowledge - Crystal Diode
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 20:02[/i] Crystal diodes are often represented by "D" plus a number in circuits, such as: D5 represents a diode numbered 5.1. Function: Th...
yueyue Mobile and portable
EEWORLD University Hall----New record in the solar system: German robot solves Rubik's Cube in 0.887 seconds
New record in the solar system: German robot solves Rubik's Cube in 0.887 seconds : https://training.eeworld.com.cn/course/3552 Everyone has played with the Rubik's Cube. How long does it take you to ...
抛砖引玉 Robotics Development
Looking for some Bluetooth related documentation
Looking for some documents related to bluenrg-lp bluetooth Does ST have some documents on Bluetooth application circuit design and layout, as well as some related matching circuit debugging, antenna d...
haha丶 ST - Low Power RF

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2545  1891  492  2640  2264  52  39  10  54  46 
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