EEWORLDEEWORLDEEWORLD

Part Number

Search

302074-5P298R00D0B

Description
Fixed Resistor, Metal Foil, 1.25W, 298ohm, 500V, 0.5% +/-Tol, -2,2ppm/Cel,
CategoryPassive components    The resistor   
File Size112KB,6 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Download Datasheet Parametric View All

302074-5P298R00D0B Overview

Fixed Resistor, Metal Foil, 1.25W, 298ohm, 500V, 0.5% +/-Tol, -2,2ppm/Cel,

302074-5P298R00D0B Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Objectid978112405
Reach Compliance Codeunknown
ECCN codeEAR99
structureHermetically Sealed
JESD-609 codee0
Lead diameter0.64 mm
Lead length25.4 mm
Number of terminals4
Maximum operating temperature125 °C
Minimum operating temperature-55 °C
Package diameter12.7 mm
Package length25.4 mm
Package form4 Terminals
method of packingBulk
Rated power dissipation(P)1.25 W
resistance298 Ω
Resistor typeFIXED RESISTOR
seriesH SERIES-OTHER
technologyMETAL FOIL
Temperature Coefficient2 ppm/°C
Terminal surfaceTin/Lead (Sn/Pb)
Tolerance0.5%
Operating Voltage500 V
H Series
Vishay Foil Resistors
New Generation of Secondary Standards Hermetically Sealed High Precision Bulk
Metal
®
Foil Technology Resistors with TCR of ± 2 ppm/°C, Tolerance of ± 0.001 % and
Load Life Stability of ± 0.005 % (Metrology, Laboratory, Instrumentation, Industrial)
FEATURES
Temperature coefficient of resistance (TCR):
± 2 ppm/°C typical (- 55 °C to + 125 °C, + 25 °C
ref.).
For
ultra
high
performances
(instrumentation and metrology) please refer to
the last page
Resistance range: 5
Ω
to 1.84 MΩ (higher or
lower values of resistance available)
Vishay Foil resistors are not restricted to standard values;
specific “as required” values can be supplied at no extra
cost or delivery (e.g. 1K2345 vs. 1K)
Power rating: 0.3 W to 2.5 W at + 25 °C (depending on
model - see table 2)
Tolerance: to ± 0.001 % (10 ppm)
Load life stability to ± 0.002 % (20 ppm) at 25 °C, 2000 h
at rated power
Load life stability can be considerably improved
through in-house stabilization
Shelf life stability: ± 2 ppm for at least 6 years
(unaffected by humidity)
Electrostatic discharge (ESD) up to 25 000 V
Rise time: 1 ns effectively no ringing
Thermal stabilization time < 1 s (nominal value achieved
within 10 ppm of steady state value)
Current noise: 0.010 µV
RMS
/V of applied voltage (< - 40 dB)
Thermal EMF: 0.05 µV/°C typical
Voltage coefficient: < 0.1 ppm/V
Non-inductive: < 0.08 µH
Non-inductive, non-capacitive design
Non hot spot design
Terminal finish available: lead (Pb)-free or tin/lead alloy
Impervious to harmful environments - oil-filled
Compliant to RoHS directive 2002/95/EC
Prototype quantities available in just 5 working days
or sooner. For more information, please contact
foil@vishay.com
For better performances (values, TCR, tolerance, stability),
please see the HZ series
INTRODUCTION
The H series resistors are oil-filled, hermetically sealed ultra
precision resistors and are used as secondary standards for
metrology applications.
The hermetic sealing eliminates the ingress of moisture and
oxygen, while the oil acts as a thermal conductor, thus
eliminating the long-term degradation elements of unsealed
resistors, while at the same time allowing the device to
accept short periods of overload without degradation.
Vishay’s Bulk Metal
®
Foil outperforms all other resistor
technologies available today for applications that require
precision and stability. When combined with the hermetic
sealing and oil filling, the H series resistors become
the most
precise and stable resistors available.
With accuracies of 0.001 %, a resistance range from 5
Ω
to 1.84 MΩ, and long term shelf life of less than 2 ppm,
these devices are virtually secondary standards that can be
carried in sets for daily or periodic calibration of factory
measurement equipment.
The H series is available with laboratory and metrology
level precision and long-term stability with additional
in-house oriented processes such as: chip stabilization,
special TCR plotting, additional treatments for ultra
stability and special post manufacturing operations
(PMO). (Please refer to the last page)
TABLE 1 - TCR VS. RESISTANCE VALUE
RESISTANCE
VALUE (Ω)
100 to < 1M84
50 to < 100
5 to < 50
TYPICAL TCR AND MAX. SPREAD
(- 55 °C to + 125 °C, + 25 °C ref.)
(ppm/°C)
± 2 ± 2.5
± 2 ± 3.5
± 2 ± 4.5
FIGURE 1 - SHELF LIFE - VHA518-11
12K9 VS. QHE
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
- 0.1
0
100 200 300 400 500 600 700 800 900 1000
Note
• For maximum TCR < 1 ppm/°C, see VHP100 and contact
application engineering
* Pb containing terminations are not RoHS compliant, exemptions may apply
Resistance Change (ppm)
Time (Days)
Document Number: 63006
Revision: 07-Dec-09
For any questions, contact:
foil@vishay.com
www.vishay.com
1
Cannot open include file: 'uniqueid.h': No such file or directory
The following error occurs when compiling in EVC: Cannot open include file: 'uniqueid.h': No such file or directory HotelCEDlg.cpp. What is the function of uniqueid.h? Is it a system file? What is the...
冷弦 Embedded System
【DIY mobile phone】+ddllxxrr + make a phone call
Today is July 1st. I promised to hand in my homework in early July. This time I have finished it and my phone can make calls. I dialed 112 on the development board for a simple reason. It is a free fa...
ddllxxrr DIY/Open Source Hardware
What to do if your girlfriend doesn't let you go home!
My parents have issued a strict order that I can't go home without a girlfriend, what should I do! :Mad: :Sad: :Cry:...
jishuaihu Talking
Board-to-board connector manufacturers recommend
I am working on a project that requires a connector between boards. I checked the J18 series rectangular connectors of GJB of AVIC Optronics, but the price is too expensive. I would like to ask if the...
燕园技术宅 Analog electronics
Top 10 Christmas gifts for couples
Couples are the main force in celebrating Christmas. Their main purpose is not to celebrate, but to deepen their feelings for each other. Christmas, like other important festivals, has been turned int...
呱呱 MCU
EEWORLD University ---- Yongteng Electronics 28335 Video
Yongteng Electronics 28335 video : https://training.eeworld.com.cn/course/3999...
老白菜 DSP and ARM Processors

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 601  458  2115  975  962  13  10  43  20  32 
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