EEWORLDEEWORLDEEWORLD

Part Number

Search

302074-4Z825R00BB

Description
Fixed Resistor, Metal Foil, 1W, 825ohm, 500V, 0.1% +/-Tol, -.2,.2ppm/Cel,
CategoryPassive components    The resistor   
File Size115KB,6 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Download Datasheet Parametric View All

302074-4Z825R00BB Overview

Fixed Resistor, Metal Foil, 1W, 825ohm, 500V, 0.1% +/-Tol, -.2,.2ppm/Cel,

302074-4Z825R00BB Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Objectid979542483
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 W
resistance825 Ω
Resistor typeFIXED RESISTOR
seriesHZ SERIES-OTHER
technologyMETAL FOIL
Temperature Coefficient0.2 ppm/°C
Terminal surfaceTin/Lead (Sn/Pb)
Tolerance0.1%
Operating Voltage500 V
HZ Series (Z-Foil) with Zero TCR
Vishay Foil Resistors
New Generation of Secondary Standards Hermetically Sealed Construction Ultra High
Precision Z-Foil Technology Resistors with TCR of ± 0.2 ppm/°C, Tolerance of ± 0.001 %
and Load Life Stability of ± 0.002 % (Metrology, Laboratory, Instrumentation, Industrial)
FEATURES
Temperature coefficient of resistance (TCR):
± 0.2 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 1.1 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 coefficient “ΔR due to self heating”:
5 ppm at rated power with the Z-Foil technology
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
Power rating: 0.3 W to 2.5 W at + 25 °C (depending on
model - see table 2)
Non-inductive, non-capacitive design
Non hot spot design
Rise time: 1 ns effectively no ringing
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
Thermal stabilization time < 1 s (nominal value achieved
within 10 ppm of steady state value)
Non-inductive: < 0.08 µH
Terminal finish available: lead (Pb)-free or tin/lead alloy
Impervious to harmful environments - oil filled
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 contact us
INTRODUCTION
The Z-Foil based oil filled, hermetically sealed HZ Series
resistors represent an industry breakthrough. The hermetic
sealing eliminates the ingress of moisture and oxygen, while
the oil acts as a thermal conductor, thus eliminating
long-term degradation elements of unsealed resistors, while
at the same time allowing the device to accept short periods
of overload without degradation.
The Z-Foil technology provides a significant reduction of the
resistive components, sensitivity to ambient temperature
variations (TCR) and applied power changes (PCR). When
combined with the hermetic sealing and oil filling, the
HZ Series resistors become
the most precise and stable
resistors available.
They are used as the most precise
secondary standards for ultra precision metrology.
With accuracies of ± 0.001 % (10 ppm) and a resistance
range from 5
Ω
to 1.1 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 HZ 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)
TYPICAL TCR AND
MAX. SPREAD
(- 55 °C to + 125 °C, + 25 °C ref.)
(ppm/°C)
± 0.2 ± 2
± 0.2 ± 3
± 0.2 ± 4
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
100 to < 1M1
50 to < 100
5 to < 50
Note
• For maximum TCR < 1 ppm/°C, see VHP100 and contact
application engineering
Resistance Change (ppm)
Time (Days)
Document Number: 63120
Revision: 03-Dec-09
For any questions, contact:
foil@vishay.com
www.vishay.com
1
Scatter points
No reason needed for distribution!...
blsky112 Embedded System
Please help: TFT video application
I am a newbie, I have a st7781 driver chip + TFT display module, I can already draw pictures on it with contex M3. But I want to make a video player, but I don't know how to set up st7781. I think I c...
snail-007 Embedded System
MSP430G2452 dot matrix screen clock DIY in progress
I soldered a 8*24 dot matrix screen with blue LEDs and used MSP430G2452 to drive 74HC595 for display. Currently, there are problems with the 2452 debugger under CCS. First use 2231 to verify whether t...
蓝雨夜 Microcontroller MCU
How to control the flashing of single digits in msp430 segment code LCD?
How to control the flashing of single digits in msp430 segment code LCD?...
godlovewinner Microcontroller MCU
Microsoft IE9 and Adidas team up to create an HTML5 version of the stunning website "Myth Space"
Microsoft IE9 and adidas Originals (clover) recently released a few domestic experience websites that use HTML5 and the popular Parallax visual difference effect. http://info.msn.com.cn/adidasoriginal...
扬眉吐气 Embedded System
Design of emerging intelligent human heart rate detection device
[b]0 Introduction[/b] Heart rate is a very important vital information in the human body. However, the traditional pulse diagnosis, due to its qualitative and subjective nature, affects the accuracy o...
dtcxn Medical Electronics

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2284  2528  594  1735  1522  46  51  12  35  31 
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