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RCMA Datasheet(PDF) 2 Page - Vishay Siliconix

Part # RCMA
Description  Molded Metal Film Very High Stability and Precision Resistors
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Manufacturer  VISHAY [Vishay Siliconix]
Direct Link  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

RCMA Datasheet(HTML) 2 Page - Vishay Siliconix

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Document Number: 52009
Revision 25-Jul-02
www.vishay.com
32
RCMA
Vishay Sfernice
For technical questions, contact sfer@vishay.com
Tables 2 and 3 show the basic characteristics and max.
values under different stresses. In fact, the values and drifts
are maintained to within narrower limits.
PRACTICAL OPERATING TOLERANCES
Temperature coefficient
between – 10°C and + 70°C
LONG LIFE
90’/30’ cycles
ambient temperature 70°C
K5
≤ ± 10ppm/°C K4 ≤ ± 15ppm/°C
1000 hours at Pr
10.000 hours
at Pr
± 0.05%
± 0.15%
So, in operation under the specified conditions (Pr at 70°C)
the total drift (load life + T.C.) of a RCMA K4 does not
exceed ± 0.25%.
SPECIAL APPLICATIONS
Temperature coefficient tracking to 5ppm/°C.
Tolerance matching to 0.05%.
Selection of positive or negative T.C. in temperature range
of – 20°C to + 125°C.
For these applications and other requirements consult
VISHAY SFERNICE.
AMBIENT TEMPERATURE IN DEGREES CELSIUS
100
50
0
0
30
50
70
100
125
150
POWER RATING CHART
TEMPERATURE RISE
RATED POWER IN WATT
40
30
20
10
0
0
0.5
1
1.50
2
RCMA
1
RCMA2
RCMA4
TESTS
NF C 83-230 - CECC 40 100
Load Life at max. Category Temperature
Short Time Overload
Damp Heat Humidity
(Steady State)
Rapid Temperature Change
Climatic Sequence
Terminal Strength
Vibration
Soldering (Thermal Shock)
Load Life
Shelf Life
1000 h at 125°C 50% of Pn
≤ ± 1%
Insulation resist. >1G
≤ ± (0.25% + 0.05Ω)
≤ ± (1% + 0.05Ω)
Insulation resist. >1G
≤ ± (0.25% + 0.05Ω)
≤ ± (0.25% + 0.05Ω)
≤ ± (0.25% + 0.05Ω)
≤ ± (0,25% + 0.05Ω)
≤ ± (1% + 0.05Ω)
Insulation resist. > 1G
≤ ± (1% + 0.05Ω)
Insulation resist. >1G
± 0.25% or 0.05
± 0.1% or 0.05
± 0.2% or 0.05
± 0.1% or 0.05
± 0.05% or 0.05
± 0.05% or 0.05
± 0.05% or 0.05
± 0.1% or 0.05
± 0.1% or 0.05
± 0.25% or 0.05
Insulation resist. 106M
2.5 Um/5 s
limited to 2 Un
56 days
with low load
– 55°C
+ 155°C
– 65°C
+ 155°C
Pull - Twist - 2 bends
10 to 500Hz
+ 260°C 10 s
cycle 90’/30’
1000 h at Pn at 70°C
1 year
ambient temperature
CONDITIONS STD 202
REQUIREMENTS
TYPICAL VALUES
AND DRIFTS
PERFORMANCE
Molded Metal Film Very High Stability and
Precision Resistors


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