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RCMA Datasheet(PDF) 2 Page - Vishay Siliconix |
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RCMA Datasheet(HTML) 2 Page - Vishay Siliconix |
2 / 4 page 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 Ω ≤ ± (0.25% + 0.05Ω) ≤ ± (1% + 0.05Ω) Insulation resist. >1G Ω ≤ ± (0.25% + 0.05Ω) ≤ ± (0.25% + 0.05Ω) ≤ ± (0.25% + 0.05Ω) ≤ ± (0,25% + 0.05Ω) ≤ ± (1% + 0.05Ω) Insulation resist. > 1G Ω – ≤ ± (1% + 0.05Ω) Insulation resist. >1G Ω ± 0.25% or 0.05 Ω ± 0.1% or 0.05 Ω ± 0.2% or 0.05 Ω ± 0.1% or 0.05 Ω ± 0.05% or 0.05 Ω ± 0.05% or 0.05 Ω ± 0.05% or 0.05 Ω ± 0.1% or 0.05 Ω ± 0.1% or 0.05 Ω ± 0.25% or 0.05 Ω Insulation resist. 106M Ω 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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