EEWORLDEEWORLDEEWORLD

Part Number

Search

302074-6448K00AB

Description
Fixed Resistor, Metal Foil, 1.5W, 448000ohm, 500V, 0.05% +/-Tol, -2,2ppm/Cel,
CategoryPassive components    The resistor   
File Size451KB,6 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Download Datasheet Parametric View All

302074-6448K00AB Overview

Fixed Resistor, Metal Foil, 1.5W, 448000ohm, 500V, 0.05% +/-Tol, -2,2ppm/Cel,

302074-6448K00AB Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerVishay
Reach Compliance Codeunknown
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)1.5 W
resistance448000 Ω
Resistor typeFIXED RESISTOR
seriesH SERIES-OTHER
technologyMETAL FOIL
Temperature Coefficient-2,2 ppm/°C
Terminal surfaceTin/Lead (Sn/Pb)
Tolerance0.05%
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@vishaypg.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: 23-Mar-10
For any questions, contact:
foil@vishaypg.com
www.foilresistors.com
1
Programs that cannot be simulated
I just wrote a program to output high level from the upper 3 bits of P2 port and the lower 3 bits of P3 port. I want to check the register changes in the debugging environment, but I cannot enter the ...
afg Microcontroller MCU
【LPC54100】Question and help
I've had the NXP Wanli board for a long time, but I never had time to play with it. Today I was free so I wanted to play with it. But... there was no emulator. I found a JLINK V7 from two years ago in...
armcu NXP MCU
Energia new version released to support Wolverine development board
Energia的动作非常快,新版([url]http://energia.nu/download/[/url])已经开始支持搭载金刚狼的launchpad “ [list] [*]Support for the [color=rgb(255, 0, 0)][backcolor=transparent][url=http://www.ti.com/ww/en/launchpad/launchpads...
wstt Microcontroller MCU
Deyisupport Blog Reading Season: Recommend your favorite amplifier blog posts, grab the post to win gifts! (Special post for grabbing posts)
[font=微软雅黑][size=3]For details of the event, please see: [url=https://www.eeworld.com.cn/huodong/201506Deyisupport/index.html]https://www.eeworld.com.cn/huodong/201506Deyisupport/index.html[/url][/siz...
EEWORLD社区 Analogue and Mixed Signal
What code can I use to enable the wireless function of my PDA?
What code can be used to enable the wireless function of a PDA? WinCE experts, I am currently using an ASUS 626 PDA, the operating system is Windows Mobile 6.0, and it supports wireless Wi-Fi. I have ...
kellycan Embedded System
Well-known foreign-funded communications companies are recruiting software development engineers, protocol engineers, algorithm analysis and implementation engineers, and algorithm analysis system simulation engineers!!!
[b]Wireless Product Software Development Engineer[/b] Job Description: Responsible for the design, coding, debugging, unit testing and other work of wireless product software modules, participate in r...
mufengyang Embedded System

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 165  1727  574  1968  1125  4  35  12  40  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