EEWORLDEEWORLDEEWORLD

Part Number

Search

303140U-796R-D-B-T

Description
Fixed Resistor, Metal Foil, 0.6W, 796ohm, 127V, 0.5% +/-Tol, -.2,.2ppm/Cel, 2917
CategoryPassive components    The resistor   
File Size503KB,7 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Download Datasheet Parametric View All

303140U-796R-D-B-T Overview

Fixed Resistor, Metal Foil, 0.6W, 796ohm, 127V, 0.5% +/-Tol, -.2,.2ppm/Cel, 2917

303140U-796R-D-B-T Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerVishay
Reach Compliance Codecompliant
ECCN codeEAR99
structureMolded Chip
Manufacturer's serial number303140
Number of terminals2
Maximum operating temperature175 °C
Minimum operating temperature-55 °C
Package height2.79 mm
Package length7.29 mm
Package formSMT
Package width4.32 mm
method of packingTR
Rated power dissipation(P)0.6 W
resistance796 Ω
Resistor typeFIXED RESISTOR
series303140
size code2917
technologyMETAL FOIL
Temperature Coefficient-.2,.2 ppm/°C
Tolerance0.5%
Operating Voltage127 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
I have a question: How to define a tabbed dialog box?
Thank you. It would be better if you have the source code. Thank you very much. I looked up the book introducing vc++, but I couldn't understand it. Thank you very much....
naixinxiaozi Embedded System
How to light up the LED with RM48 USB kit?
According to the tutorial in the forum, I used HCG and CCS to program the TMS570 USB kit, but I cannot light up the LED of the RM48 USB kit.The project is like thisIn addition, when building a project...
redeemer Microcontroller MCU
Can I develop PocketPC programs in VS2005 to achieve the same functions as D3DXEFFECT in D3D9?
There is no ready-made one in D3DM. Can you tell me if it is possible to achieve the same effect and function? Thank you!...
red526 Embedded System
How to use single chip microcomputer to read and write USB disk
Single-chip microcomputer reading and writing USB flash disk, a thing that the predecessors have played with. I have nothing to do at home during the summer vacation. There is no summer homework in co...
fish001 Microcontroller MCU
How can I hide in other program interfaces?
For example, embedding the company's promotion in the QQ login interface?...
zhlxyj Embedded System
Help~~Time problem when using 52 MCU to make infrared transmitter
Has anyone here worked with infrared? ... It is to use a single chip microcomputer to make a 38k wave to transmit. Now I use Keil to adjust the time but it is always not accurate. The 13us timing inte...
bigsand MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1202  2118  2463  1720  1281  25  43  50  35  26 
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