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Details, datasheet, quote on part number:RCMY
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Datasheet text preview:
RCMY
Vishay Sfernice
Molded Metal Film, High Ohmic Values High Voltage Resistors
FEATURES
· 0.5W to 1W at 70°C · NF C 93-230 · Very high ohmic values · High insulation · Accurate dimensions · Great mechanical strength The RCMY 2 and RCMY 4 resistors are particularly well suited for high voltage applications. The technology used ensures very good stability under the most severe and diverse operating conditions. Due to their excellent performance, the RCMY2 and RCMY4 are perfect for the design of high voltage and precision voltage divider networks. With two resistors only, voltage ratios of up to 108 can be achieved in a wide range of ohmic values. Higher ratios can be obtained with a combination of several resistors.
DIMENSIONS in millimeters
25 min.
A
25 min.
DIMENSIONS SERIES RCMY2
ØB ØC
A max. 29 54
ØB max. 10.2 10.2
ØC ± 0.1 0.8 0.8
WEIGHT IN G 4.4 13
RCMY4
TECHNICAL SPECIFICATIONS
SFERNICE SERIES AND STYLES Power Rating at 70°C (Pr) Resistance Value Range Resistance Tolerance Maximum Voltage Temperature Coefficient Insulation Resistance (Typical) Critical Resistance 18M RCMY2 0.5W 1M to 100M ± 1% 3kV K2 ± 100ppm/°C > 107M 100M ± 2% RCMY4 1W 1M to 250M ± 5% 10kV
www.vishay.com 40
For technical questions, contact sfer@vishay.com
Document Number: 52012 Revision 16-Jul-02
RCMY
Molded Metal Film, High Ohmic Values High Voltage Resistors
PERFORMANCE
NF C 93-230 TESTS Dielectric Voltage Short Time Overload Load Life at max. Category Temperature Damp Heat Humidity (Steady State) Rapid Temperature Change Climatic Sequence Terminal Strength Vibration Soldering (Thermal Shock) Load Life Shelf Life 55°C 55°C severity 1 CONDITIONS 4.5kV RMS 2.5 Um / 5 s limited to 2 Un 1000 h at 125°C 0% of Pn 56 days with low load + 125°C + 125°C REQUIREMENTS ± 0.5% ± 0.5% ± 2% ± 1.5% Insulation resist. >103M ± 0.5% ± 1% Insulation resist. >103M ± 0.5% ± 0.5% ± 0.5% ± 1% TYPICAL VALUES AND DRIFTS < ± 0.1% ± 0.1% ± 0.5 %
± 0.5% Insulation resist. >107M
Vishay Sfernice
± 0.1% ± 0.5% Insulation resist. >107M ± 0.05% ± 0.05% ± 0.1% ± 0.3% < ± 0.2% per year
Pull - Twist - 2 bends Severity 55 B + 260°C 10 s
cycle 90'/30' 1000 h at Pn at 70°C 1 year @ ambient temperature
POWER RATING CHART
RCMY4
TEMPERATURE RISE
1
60 HOT SPOT TEMPERATURE IN °C
RC MY 4
POWER IN WATT
40
RC
M
Y2
0.5
RCMY2
20
0 0 0 30 50 70 90 100 110 125 AMBIENT TEMPERATURE IN DEGREES CELSIUS 150 0 0.25 0.5 RATED POWER IN WATT 0.75 1
NOISE
In a frequency decade, the average noise level is 0.2 µ V/V and can reach 0.5 µ V/V for the highest values.
PRACTICAL TOLERANCE FOR USE
After 1000 hours load life at rated power 90'/30' cycles +70°C ambient temperature, the typical drifts, measured at 70°C, are as follows : Typical total drift = drift due to T.C. (K2) + life drift :<±0.8%. Maximum deviation from rated ohmic value including 1% manufacturing tolerance ±1.8%.
For technical questions, contact sfer@vishay.com www.vishay.com 41
VOLTAGE COEFFICIENT
< 1 ppm/V.
Document Number: 52012 Revision 16-Jul-02
RCMY
Vishay Sfernice
PACKAGING
In box.
Molded Metal Film, High Ohmic Values High Voltage Resistors
MARKING
Printed: SFERNICE trademark, series, style, ohmic value (in M), tolerance (in %), manufacturing date.
ORDERING INFORMATION
RCMY SERIES 2 STYLE SPECIAL DESIGN Method N° Optional 80M OHMIC VALUE ± 2% TOLERANCE PACKAGING Optional
www.vishay.com 42
For technical questions, contact sfer@vishay.com
Document Number: 52012 Revision 16-Jul-02
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