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Y1725300R000B0L

产品描述RES 300 OHM 3/4W .1% AXIAL
产品类别无源元件   
文件大小475KB,共7页
制造商Vishay(威世)
官网地址http://www.vishay.com
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Y1725300R000B0L概述

RES 300 OHM 3/4W .1% AXIAL

Y1725300R000B0L规格参数

参数名称属性值
电阻值300 Ohms
容差±0.1%
功率(W)0.75W,3/4W
成分金属箔
特性非电感
温度系数±2ppm/°C
工作温度-55°C ~ 125°C
封装/外壳轴向
大小/尺寸0.500" 直径 x 0.625" 长(12.70mm x 15.88mm)
端子数4

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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
Resistance Change (ppm)
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
Time (Days)
Document Number: 63006
Revision: 23-Mar-10
For any questions, contact:
foil@vishaypg.com
www.foilresistors.com
1
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