Document Number: 52011 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 02-Oct-09 177
Molded Metal Film High Stability (< 0.25 % after 1000 h)
High Temperature (up to 175 °C) Precision Resistors
RCMT
Vishay Sfernice
The performance of the RCMT resistors exceed the
requirements of NF C 83-230 standards. They are
particularly relevant to the more stringent military and
industrial applications especially when high ambient
temperatures such as + 175 °C are to be encountered.
The RCMT resistors are qualified and released to the
NF C UTE 83-230 standard styles RS56C, RS60E and C,
RS65E and C, RS70E and C.
FEATURES
•0.1 W to 2 W at 125 °C
•EN140100
•CECC 40 101-044
•High climatic performance - 65 °C/+ 175 °C/56 days
•High long term stability drift < 0.25 % after 1000 h
•Tight temperature coefficient to ± 15 ppm/°C
•Temperature coefficient tracking 5 ppm/°C
•Wide ohmic range from 1 Ω to 5 MΩ
•Tight tolerances up to ± 0.1 %
•Matching tolerance to 0.05 %
•Termination: Pure matte tin
•Compliant to RoHS directive 2002/95/EC
ENVIRONMENTAL SPECIFICATIONS
Insulation Resistance > 107 MΩ
Voltage Coefficient 10 ppm/V
Environmental Specifications - 65 °C/+ 175 °C/56 days
PRACTICAL OPERATING TOLERANCES
After the 10 000 h load life test, at nominal power rating,
90’/30’ cycles, + 125 °C ambient temperature, the total actual
drifts measured at + 125 °C are the following:
DIMENSIONS in millimeters
SERIES A max. Ø B max. Ø C WEIGHT
g
RCMT01 4.32 2.03 0.4 0.11
RCMT02 6.7 2.5 0.6 0.28
RCMT05 10.4 3.66 0.6 0.46
RCMT08 16.5 6.4 0.8 1.3
RCMT1 19.3 6.4 0.8 1.5
RCMT2 29 10.2 0.8 4.4
RCMT4 54 10.2 0.8 13
TEMPERATURE COEFFICIENT
TCR CODE TEMPERATURE RANGE
NOMINAL
TEMPERATURE
COEFFICIENT
TEMPERATURE RANGE
TYPICAL
TEMPERATURE
COEFFICIENT
K5 0 °C to + 155 °C ± 15 ppm/°C 0 °C to + 70 °C ± 10 ppm/°C
K4 - 55 °C to + 175 °C ± 25 ppm/°C - 10 °C to + 70 °C ± 15 ppm/°C
K3 - 55 °C to + 175 °C ± 50 ppm/°C - 10 °C to + 70 °C ± 30 ppm/°C
25 min. 25 min.
A
Ø C
Ø B
Manufacturing tolerance ± 0.1 % ± 1 %
Drift due to TCR (K4) + life drift ± 0.25 % ± 0.35 %
Max. total deviation from nominal
ohmic value, including the
manufacturing tolerance
± 0.35 % ± 1.35 %
RCMT
Vishay Sfernice Molded Metal Film High Stability (< 0.25 % after 1000 h)
High Temperature (up to 175 °C) Precision Resistors
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 52011
178 Revision: 02-Oct-09
Note
• Undergoes European Quality Insurance System (CECC)
POWER RATING TEMPERATURE RISE
TECHNICAL SPECIFICATIONS
VISHAY
SFERNICE
SERIES
NF C
83-230
CECC 40
101-044
POWER
RATING
AT + 70 °C
POWER
RATING
AT + 125 °C
RESISTANCE VALUE RANGE IN RELATION TO
- TEMPERATURE COEFFICIENT
- TOLERANCE
MAXIMUM
VOLTAGE
CRITICAL
RESISTANCE
K3 K4 K5
± 0.2 % ± 0.5 %
± 1 %
± 0.1 %
± 0.2 %
± 0.5 %
± 1 %
± 0.1 %
± 0.2 %
± 0.5 %
± 1 %
RCMT01
K3
-
0.063 W 0.05 W 10
Ω
511 k
Ω
1
Ω
511 k
Ω
49.9
Ω
100 k
Ω
49.9
Ω
511 k
Ω
100
Ω
100 k
Ω
100
Ω
100 k
Ω
200 V
-
RCMT01
K4
-
RCMT02
K3
RS
56C 0.125 W 0.1 W 10
Ω
332 k
Ω
1
Ω
332 k
Ω
10
Ω
332 k
Ω
1
Ω
332 k
Ω
10
Ω
100 k
Ω
10
Ω
332 k
Ω
300 V
-
RCMT02
K4
RS
56E
RCMT05
K3
RS
60C 0.25 W 0.125 W 10
Ω
332 k
Ω
1
Ω
1 M
Ω
10
Ω
332 k
Ω
1
Ω
1 M
Ω
10
Ω
332 k
Ω
10
Ω
1 M
Ω
350 V 980 k
Ω
RCMT05
K4
RS
60E
RCMT08
K3
RS
65C 0.5 W 0.25 W 10
Ω
1 M
Ω
1
Ω
1.5 M
Ω
10
Ω
1 M
Ω
1
Ω
1.5 M
Ω
10
Ω
750 k
Ω
10
Ω
1.5 M
Ω
400 V 640 k
Ω
RCMT08
K4
RS
65E
RCMT1
K3
RS
70C 1 W 0.5 W 10
Ω
1 M
Ω
1
Ω
2 M
Ω
10
Ω
1 M
Ω
1
Ω
2 M
Ω
10
Ω
750 k
Ω
10
Ω
2 M
Ω
500 V 500 k
Ω
RCMT1
K4
RS
70E
RCMT2
K3
-
2 W 1 W 10
Ω
1 M
Ω
1
Ω
2.5 M
Ω
10
Ω
1 M
Ω
1
Ω
2.5 M
Ω
10
Ω
1 M
Ω
10
Ω
2.5 M
Ω
600 V 360 k
Ω
RCMT2
K4
-
RCMT4
K3
-
4 W 2 W 10
Ω
2.5 M
Ω
1
Ω
5 M
Ω
10
Ω
2.5 M
Ω
1
Ω
5 M
Ω
10
Ω
2 M
Ω
10
Ω
2.5 M
Ω
800 V 320 k
Ω
RCMT4
K4
-
AMBIENT TEMPERATURE IN °C
RATED POWER IN %
100
50
0
0 25 50 70 100 125 150 175
40
50
30
20
10
001.0
0.5 1.5 2.0
HOT SPOT TEMPERATURE IN °C
RATED POWER IN W
RCMT02
RCMT1
RCMT2
RCMT4
Document Number: 52011 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 02-Oct-09 179
RCMT
Molded Metal Film High Stability (< 0.25 % after 1000 h)
High Temperature (up to 175 °C) Precision Resistors Vishay Sfernice
NOISE LEVEL
In a frequency decade, the average noise level is 0.1 µV/V for models RCMT08, RCMT1, RCMT2 and RCMT4 in all ohmic values.
It progressively increases as a function of the ohmic value and can reach 0.2 µV/V for the highest values of models RCMT02 and
RCMT05 (0.1 µV/V for R < 10 kΩ).
SPECIAL APPLICATIONS
Temperature coefficient tracking to 5 ppm.
Tolerance matching to 0.05 %.
Selection of positive or negative TCR in temperature range of - 20 °C to + 125 °C.
For these applications and other requirements consult Vishay Sfernice.
RECOMMENDATION
The lower the ohmic value, the more important the influence of lead resistance is on measurements. The nominal resistance
value is therefore measured at a distance of 5 mm from resistor body.
PERFORMANCE
EN140100 - CECC 40 101-044 TYPICAL VALUES
AND DRIFTS
TESTS CONDITIONS REQUIREMENTS
Dielectric Voltage 2 Un/1 min ± 0.25 % < ± 0.05 % or 0.05 Ω
Short Time Overload 2.5 Um/5 s
limited to 2 Un
± 0.25 % ± 0.05 % or 0.05 Ω
Load Life at Maximum Category
Temperature
1000 h at + 155 °C
0 % of Pr
± 0.5 % ± 0.25 % or 0.05 Ω
Damp Heat Humidity
(Steady State)
56 days
with low load ± 0.5 %
± 0.2 % or 0.05 Ω
Insulation resistance
> 106 MΩ
Rapid Temperature Change - 55 °C + 175 °C ± 0.1 % ± 0.05 % or 0.05 Ω
Climatic Sequence - 65 °C + 175 °C
severity 1
± 0.5 %
Insulation resistance
> 103 MΩ
± 0.2 % or 0.05 Ω
Insulation resistance
> 106 MΩ
Terminal Strength Pull - twist - 2 bends ± 0.1 % ± 0.05 % or 0.05 Ω
Vibration Severity 55 B ± 0.1 % ± 0.05 % or 0.05 Ω
Soldering (Thermal Shock) + 260 °C 10 s ± 0.1 % ± 0.05 % or 0.05 Ω
Load Life Cycle 90’/30’
70 °C ambient
1000 h at Pn± 0.5 % ± 0.15 % or 0.05 Ω
10 000 h at Pn- ± 0.25 % or 0.05 Ω
Shelf Life 1 year ambient temperature - < ± 0.05 %
RCMT
Vishay Sfernice Molded Metal Film High Stability (< 0.25 % after 1000 h)
High Temperature (up to 175 °C) Precision Resistors
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 52011
180 Revision: 02-Oct-09
MARKING
Printed: series, style, NF style if applicable, ohmic value (in Ω), tolerance (in %), temperature coefficient, manufacturing
date. Due to lack of space, RCMT02 is referenced as MT02.
GLOBAL PART NUMBER INFORMATION
GLOBAL
MODEL SIZE SPECIAL OHMIC VALUE TOLERANCE TEMPERATURE
COEFFICIENT PA C K AG I N G
RCMT 01
02
05
08
10
20
40
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 %
H = K3, 50 ppm/K
E = K4, 25 ppm/K
D = K5, 15 ppm/K
AM500 = A20
BAG100 = S14
BAG50 = S09
BAG10 = S03
BO50* = B25
*: possible in
N/A
T02 130 1 H 1C MR 0FS4
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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