EEWORLDEEWORLDEEWORLD

Part Number

Search

302074-6T549R00QB

Description
Fixed Resistor, Metal Foil, 1.5W, 549ohm, 500V, 0.02% +/-Tol, -2,2ppm/Cel,
CategoryPassive components    The resistor   
File Size112KB,6 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Environmental Compliance
Download Datasheet Parametric View All

302074-6T549R00QB Overview

Fixed Resistor, Metal Foil, 1.5W, 549ohm, 500V, 0.02% +/-Tol, -2,2ppm/Cel,

302074-6T549R00QB Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Objectid978169291
Reach Compliance Codeunknown
ECCN codeEAR99
structureHermetically Sealed
JESD-609 codee3
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)1.5 W
resistance549 Ω
Resistor typeFIXED RESISTOR
seriesH SERIES-OTHER
technologyMETAL FOIL
Temperature Coefficient-2,2 ppm/°C
Terminal surfaceTin (Sn)
Tolerance0.02%
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
Can the forum organize group purchases for the boards used in the book?
Can the forum organize a group purchase for the board used in your book? I have already bought the book and gave it to a younger brother. But he doesn't have a board, so I want to get him one....
heningbo Microcontroller MCU
WINCE 5.0 loading touch screen driver problem
I am using a VIA industrial motherboard X86 and WINCE5.0 underneath. I bought a touch screen, but the installation and registration instructions in the documentation and the driver package are inconsi...
damu Embedded System
Application of touch switch circuit in single chip (reprint)
[font=Arial]Introduction: Single-key switch circuits have been widely used in digital products such as PDAs, mobile phones, and electronic dictionaries, and there are many ways to implement them. Gene...
子庚科技 MCU
After building a project in PB5.0, the compile option is virtual! How to compile
The .cec file under BSP has also been added, but why can't the compilation option be used?...
holystw Embedded System
Please restore the number of invitees to 8. Thank you. Thank you. I invited 8 people before, but there are already 6 people in the list.
[i=s]This post was last edited by Shenzhen Xiaohua on 2021-4-23 22:08[/i]Please restore the number of invitees to 8. Thank you, thank you, thank you. I invited 8 people before, but 6 of them were alre...
深圳小花 Suggestions & Announcements
SensorTile.Box Expert Mode Gyroscope Sensor
[i=s]This post was last edited by zhaoqibin on 2020-4-25 22:44[/i]I remember when I was in college, there was a Freescale smart car competition. The electromagnetic group's car used a two-wheel invert...
zhaoqibin ST MEMS Sensor Creative Design Competition

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 547  2530  2187  2581  2515  12  51  45  52  4 
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