EEWORLDEEWORLDEEWORLD

Part Number

Search

302074-4ZTP240R00CB

Description
Fixed Resistor, Metal Foil, 1W, 240ohm, 500V, 0.25% +/-Tol, -.2,.2ppm/Cel,
CategoryPassive components    The resistor   
File Size456KB,6 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Environmental Compliance
Download Datasheet Parametric View All

302074-4ZTP240R00CB Overview

Fixed Resistor, Metal Foil, 1W, 240ohm, 500V, 0.25% +/-Tol, -.2,.2ppm/Cel,

302074-4ZTP240R00CB Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Objectid852954831
Reach Compliance Codecompliant
ECCN codeEAR99
structureHermetically Sealed
JESD-609 codee3
Lead diameter0.645 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
resistance240 Ω
Resistor typeFIXED RESISTOR
seriesHZ(OTHER)
technologyMETAL FOIL
Temperature Coefficient0.2 ppm/°C
Terminal surfaceTin (Sn)
Tolerance0.25%
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
to 1.1 M (higher or lower values of
resistance available)
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 “R 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@vishaypg.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
to 1.1 M 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
()
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: 25-Mar-10
For any questions, contact:
foil@vishaypg.com
www.foilresistors.com
1
[Help] SPI communication of MSP430F11X1
MSP430F11X1------------------------- -------- ----------------| ------------------------ | ------- | ---------------- || ------------------------ | ------- | ---------------- || ---------- P2.1/INCLK|...
ylhsia Microcontroller MCU
After ARM is converted through MAX3232, there are bit errors. I need an urgent solution.
After ARM is converted through MAX3232, there is a bit error. I need a solution urgently. I don't know if it is a wiring problem or a program problem. The chip used is LPC2366...
neil.wang ARM Technology
There is a lock on the file name, and I can't modify it.
I just started learning TI and there is a locked file on the file. I can’t modify it. I wonder if any expert can tell me what this file is....
sandysun Microcontroller MCU
Problems with data stock images in WINCE
The question is as follows: There is an IMAGE field in the database table, and it is a BYTE[] type when read out. How can I convert it into an IMAGE object and display it in PICTUREBOX? The method of ...
lelte Embedded System
ABOUT ALTIUM DESIGN SUMMER 08
When using Altium Design Summer 08, the PCB editing window always opens in a new window. I can't find where to set it. Can you help me solve this problem? Thank you!...
dhdhl00 PCB Design
【Contribute to C2000】SEED DSP training tutorial PPT total 250 pages
SEED DSP training tutorial PPT total 250 pages...
fxw451 Microcontroller MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1382  2324  735  1183  253  28  47  15  24  6 
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