EEWORLDEEWORLDEEWORLD

Part Number

Search

303139-71R5-E-B-L

Description
Fixed Resistor, Metal Foil, 0.25W, 71.5ohm, 47V, 0.2% +/-Tol, -.2,.2ppm/Cel, 2412
CategoryPassive components    The resistor   
File Size503KB,7 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Download Datasheet Parametric View All

303139-71R5-E-B-L Overview

Fixed Resistor, Metal Foil, 0.25W, 71.5ohm, 47V, 0.2% +/-Tol, -.2,.2ppm/Cel, 2412

303139-71R5-E-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
GuidelineMIL-PRF-55182
resistance71.5 Ω
Resistor typeFIXED RESISTOR
series303139
size code2412
technologyMETAL FOIL
Temperature Coefficient-.2,.2 ppm/°C
Tolerance0.2%
Operating Voltage47 V
Base Number Matches1
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
[New version of Zhongke Bluexun AB32VG1 RISC-V development board] - 7: Using RT-Thread in VS Code on Ubuntu
[i=s]This post was last edited by MianQi on 2021-9-14 21:45[/i]The reference routine is this: UART Practice on Zhongke Bluexun AB32VG1 (address: https://docs.qq.com/doc/DTVVWWXpLRVl6cER2?_t=1626260921...
MianQi Domestic Chip Exchange
Urgent!!!!!! Using keybd_event to send VK_BACK (0X08) can actually open IE browser
A key is defined as the backspace key keybd_event (VK_BACK, 0, 0, 0); [b] When in the CE desktop, clicking this key will open the IE browser by default [/b] In other cases, the backspace function can ...
ldfsndfsa Embedded System
Problems in CCS5.1 Programming
How can I add default search paths for header files, source files, command files, etc. in CCS5.1 so that these files can be automatically recognized during program editing (rather than adding them one...
xyc2006 DSP and ARM Processors
KEIL software initial learning, with routines
There is a PDF document in this compressed package. It is a guide document for beginners to learn C51 from Zhou Ligong Company. It is about the use of KEIL software. It is relatively basic. In this do...
2007robot MCU
Running LCD display program in FSMCBANK1SRAM is very slow! ?
I used my own small BOOT to download the LCD display program BIN with the starting address of 0x68000000 to SRAM at0x68000000.The LCD is also connected to BANK1and the program runs, but... The LCD dis...
leee20002 stm32/stm8
Guys, please help me solve this problem.
The compilation is successful and the hex file is generated, but there is no response when downloading to the target board#define GPIOE_CRL (*((unsigned int *)(0x40012000))) #define GPIOE_BSRR (*((uns...
mdice1986 stm32/stm8

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2586  871  1543  2432  1134  53  18  32  49  23 
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