RCME
Vishay Sfernice
Molded Metal Film Resistors
Low Temperature Coefficient, High Precision
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 52010
174 Revision: 06-Oct-09
The RCME range of metal film resistors represents a
significant technical advancement in resistive technology,
combining low temperature coefficients with high
environmental stabilities, and high frequency performance.
Laser beam trimming gives tolerance accuracies from 0.1 %
to 1 %.
The RCME range effectively bridges the gap that has
hitherto existed between the high precision, high stability foil
or wirewound technology and conventional film technology.
FEATURES
•0.125 W to 0.25 W at 85 °C
•Very low temperature coefficient: ± 5 ppm/°C
and ± 10 ppm/°C
•Very tight tolerances: Down to ± 0.1 %
•Electrical insulation > 107 MΩ
•Climatic category - 65 °C/+ 155 °C /56 days
•Excellent frequency performance
•Termination = Pure matte tin
•Compliant to RoHS directive 2002/95/EC
DIMENSIONS in millimeters
SERIES A Ø B Ø C WEIGHT
(g)
RCME02 6.5 ± 0.2 2.4 ± 0.1 0.6 0.26
RCME05 10.2 ± 0.2 3.65 ± 0.1 0.6 0.46
A
25 min. 25 min.
Ø B Ø C
TECHNICAL SPECIFICATIONS
VISHAY SFERNICE SERIES RCME02 RCME05
Power Rating at 85 °C 0.125 W 0.25 W
Ohmic Range 100 Ω to 750 kΩ
Resistance Tolerance ± 0.1 %, ± 0.2 %, ± 0.5 %, ± 1 %
Nominal Temperature Coefficient
in the Range - 20 °C to + 85 °C
K6 ≤ ± 10 ppm/°C
K8 ≤ ± 5 ppm/°C
Maximum Voltage 300 V 350 V
Insulation Resistance > 107 MΩ
Voltage Coefficient 0.0001 %/V
Environmental Specifications - 65 °C/+ 155 °C/56 days
Document Number: 52010 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 06-Oct-09 175
RCME
Molded Metal Film Resistors
Low Temperature Coefficient, High Precision Vishay Sfernice
POWER RATING TEMPERATURE COEFFICIENT
The temperature coefficient is guaranteed between
- 20 °C to + 85 °C.
The limits of TCR are:
K 8 ± 5 ppm/°C and K 6 ± 10 ppm/°C
For use outside the range - 20 °C or + 85 °C, limiting values
of temperature coefficient are given in the graph above.
PERFORMANCE
EN140-100
MAXIMUM VALUES AND DRIFTS
TESTS CONDITIONS
Load Life at Maximum Category Temperature 1000 h at + 155 °C/0 % of Pn± 0.15 % or 0.05 Ω
Short Time Overload 2.5 Um/5 s limited to 2 Un± 0.01 % or 0.05 Ω
Damp Heat Humidity (Steady State) 56 days
with low load ± 0.15 % or 0.05 Ω
Rapid Temperature Change - 55 °C + 155 °C ± 0.05 % or 0.05 Ω
Climatic Sequence - 55 °C + 155 °C
severity 1
± 0.15 % or 0.05 Ω
Insulation resistance > 106 MΩ
Terminal Strength Pull - twist - 2 bends ± 0.05 % or 0.05 Ω
Vibration Severity 55B ± 0.05 % or 0.05 Ω
Soldering (Thermal Shock) + 260 °C 10 s ± 0.05 % or 0.05 Ω
Load Life Cycle 90’/30’
1000 h at Pn at 85 °C ± 0.05 % or 0.05 Ω
Shelf Life 1 year ambient temperature ± 0.03 % or 0.05 Ω
100
50
0
RATED POWER IN %
AMBIENT TEMPERATURE IN °C
0 30 50 70 85 110 130 155
+ 12
+ 10
+ 7
+ 5
- 5
- 7
- 10
- 12
- 55 - 20 0 + 40 + 80+ 85 + 120 + 155
0
TCR LIMITS
AMBIENT TEMPERATURE IN °C
positive limit K6
positive limit K8
negative limit K8
negative limit K6
RCME
Vishay Sfernice Molded Metal Film Resistors
Low Temperature Coefficient, High Precision
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 52010
176 Revision: 06-Oct-09
MARKING
Printed: Vishay Sfernice trademark, series, style (in full or abbreviated), ohmic value (in Ω), tolerance (in %), temperature
coefficient, manufacturing date.
GLOBAL PART NUMBER INFORMATION
GLOBAL
MODEL SIZE SPECIAL OHMIC VALUE TOLERANCE TEMPERATURE
COEFFICIENT PA C K AG I N G
RCME 02
05
As applicable.
Contact us.
The first four digits are
significant figures and the
last digit specifies the
number of zeros to follow.
R designates decimal
point.
13001 = 13 kΩ
33001 = 33 kΩ
220R0 = 220 Ω
1R220 = 1.22 Ω
B = 0.1 %
A = 0.2 %
D = 0.5 %
F = 1 %
Y = K6, 10 ppm/K
Z = K8, 5 ppm/K
AM500 = A20
BAG100 = S14
BAG10 = S03
E02 130 1 Y 1C MR 0FS4
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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All product specifications and data are subject to change without notice.
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or in any other disclosure relating to any product.
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information provided herein to the maximum extent permitted by law. The product specifications do not expand or
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therein, which apply to these products.
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