RCMA
www.vishay.com
Vishay Sfernice
Molded Metal Film Very High Stability (< 0.25 % after 1000 h)
and Precision (up to 0.1 %) Resistors
FEATURES
• 0.1 W to 2 W at 70 °C
• EN140-201
• CECC 40 100
• Very high stability: drift < 0.25 % after 1000 h
• Reduced total excursion: high initial precision (to ± 0.1 %)
with low temperature coefficient (down to ± 15 ppm/°C)
• The models in this series are the first ones qualified by the
CNES for spatial applications (certificate N°4 dated
October 22, 1972)
• Wide range ohmic values 1
to 5 M
• Accurate dimensions,
mechanical strength
• Matching tolerance: 0.1 %
• Tracking TCR: 5 ppm/°C
• Termination: pure matte tin
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
high
insulation
and
great
• High climatic performances: - 65 °C/+ 155 °C/56 days
DIMENSIONS
in millimeters
SERIES
25 min.
A
25 min.
A max.
6.7
10.4
16.5
19.3
29
54
Ø B max.
2.5
4.2
6.4
6.4
10.2
10.2
ØC
0.6
0.6
0.8
0.8
0.8
0.8
WEIGHT in g
0.26
0.46
1.3
1.5
4.4
13
RCMA02
RCMA05
RCMA08
RCMA1
RCMA2
RCMA4
ØB
ØC
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
RCMA02
RCMA05
RCMA08
RCMA1
RCMA2
RCMA4
RESISTANCE
RANGE
1 to 1M
1 to 1M
1 to 1.5M
1 to 2M
1 to 2.5M
1 to 5M
RATED POWER
P
70 °C
W
0.125
0.250
0.500
0.75
1.0
2.0
LIMITING ELEMENT
VOLTAGE
V
300
350
400
500
600
800
TOLERANCE
±%
0.1, 0.2, 0.5, 1
0.1, 0.2, 0.5, 1
0.1, 0.2, 0.5, 1
0.1, 0.2, 0.5, 1
0.1, 0.2, 0.5, 1
0.1, 0.2, 0.5, 1
TEMPERATURE
COEFFICIENT
± ppm/°C
15, 50
15, 50
15, 50
15, 25
15, 25
15, 25
Note
•
Undergoes European Quality Insurance System (CECC)
Revision: 12-Sep-14
Document Number: 52009
1
For technical questions, contact:
sferfixedresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
RCMA
www.vishay.com
Vishay Sfernice
RCMA02
RCMA05
RCMA08
RCMA1
RCMA2
RCMA4
TECHNICAL SPECIFICATIONS
VISHAY SFERNICE SERIES
NF C 83-230
CECC 40 100-803
Power Rating at 70 °C
± 0.2 %
Resistance
K3
± 0.5 % ± 1 %
Value Range
± 0.1 % ± 0.2 %
in Relation to
K4
- Tolerance
± 0.5 % ± 1 %
- Temperature
± 0.1 % ± 0.2 %
K5
Coefficient
± 0.5 % ± 1 %
Maximum Voltage
Critical Resistance
Rated in the range
- 55 °C to + 155 °C
Temperature
Coefficient
Typical in the range
0 °C to + 155 °C
Insulation Resistance
Voltage Coefficient
Environmental Specifications
K4
K4
RS58P
RS63P
BE
CE
0.125 W
0.250 W
10
to 332 k 10
to 332 k
1
to 1 M
1
to 1 M
10
to 332 k 10
to 332 k
1
to 1 M
1
to 1 M
10
to 332 k 10
to 332 k
10
to 1 M 10
to 1 M
300 V
350 V
720 k
490 k
K3
± 50 ppm/°C
K5
± 15 ppm/°C
> 10
7
M
0.0001 %/V
- 65 °C/+ 155 °C/56 days
-
-
-
RS68P
DE
-
-
-
0.500 W
0.75 W
1W
2W
10
to 1 M 10
to 1 M 10
to 1 M 10
to 2.5 M
1
to 1.5 M
1
to 2 M 1
to 2.5 M
1 W to 5 M
10
to 1 M 10
to 1 M 10
to 1 M 10
to 2.5 M
1
to 1.5 M
1
to 2 M 1
to 2.5 M
1 to 5 M
10
to 750 k 10
to 750 k
10
to 100 k 10
to 100 k
10
to 1.5 M 10
to 2 M
400 V
500 V
600 V
800 V
320 k
333 k
360 k
320 k
K4
± 25 ppm/°C
Note
•
Undergoes European Quality Insurance System (CECC)
PERFORMANCE
CECC 40 100
TESTS
Load Life at
Maximum 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
EN 140-201
REQUIREMENTS
±1%
Insulation resistance > 1 G
± (0.25 % + 0.05
)
± (1 % + 0.05
)
Insulation resistance > 1 G
± (0.25 % + 0.05
)
± (1 % + 0.05
)
Insulation resistance > 1 G
± (0.25 % + 0.05
)
± (0.25 % + 0.05
)
± (0.25 % + 0.05
)
± (1 % + 0.05
)
Insulation resistance > 1 G
-
CONDITIONS STD 202
1000 h at 125 °C 50 % of
P
n
2.5
U
m
/5 s
limited to 2
U
n
56 days
with low load
- 55 °C to + 155 °C
- 65 °C to + 155 °C
Pull - twist - 2 bends
10 Hz to 500 Hz
+ 260 °C 10 s
Cycle 90’/30’
1000 h at
P
n
at 70 °C
1 year
ambient temperature
TYPICAL VALUES
AND DRIFTS
± 0.25 % or 0.05
± 0.1 % or 0.05
± 0.2 % or 0.05
± 0.1 % or 0.05
± 0.25 % or 0.05
Insulation resistance 10
6
M
± 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
Revision: 12-Sep-14
Document Number: 52009
2
For technical questions, contact:
sferfixedresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
RCMA
www.vishay.com
POWER RATING
100
Vishay Sfernice
PRACTICAL OPERATING TOLERANCES
Table 2 and 3 show the basic characteristics and maximum
values under different stresses. In fact, the values and drifts
are maintained to within narrower limits.
Temperature coefficient
between - 10 °C and + 70 °C
K5
± 10 ppm/°C
K4
± 15 ppm/°C
1000 h at
P
r
10 000 h at
P
r
± 0.05 %
± 0.15 %
RATED POWER IN %
50
LONG LIFE
90’/30’ cycles
ambient temperature 70 °C
0
0
30
50
70
100
125
150
So, in operation under the specified conditions (P
r
at 70 °C)
the total drift (load life + TCR) of a RCMA K4 does not
exceed ± 0.25 %.
AMBIENT TEMPERATURE IN °C
SPECIAL APPLICATIONS
Temperature coefficient tracking to 5 ppm/°C.
Tolerance matching to 0.05 %.
Selection of positive or negative TCR in temperature range
of - 20 °C to + 125 °C.
TEMPERATURE RISE
50
HOT SPOT TEMPERATURE IN °C
40
R
A
CM
4
For these applications and other requirements consult
Vishay Sfernice.
30
A2
CM
R
MARKING
Printed: Vishay Sfernice trademark, series, style (due to lack
of space RCMA02 is printed MA02), ohmic value (in
),
tolerance (in %), temperature coefficient, manufacturing
date.
20
R
C
M
A
1
10
0
0
0.5
1
1.5
2
RATED POWER IN W
GLOBAL PART NUMBER INFORMATION
R
C
M
A
0
2
1
3
0
0
1
F
H
S
1
4
GLOBAL
MODEL
RCMA
SIZE
02
05
08
10
20
40
SPECIAL
As applicable.
Contact us.
OHMIC VALUE
The first four digits are
significant figures and the last
digit specifies the number of
zeros to follow.
R designates decimal point.
13001
= 13 k
33001
= 33 k
220R0
= 220
1R220
= 1.22
TOLERANCE
B
= 0.1 %
A
= 0.2 %
D
= 0.5 %
F
=1%
TEMPERATURE
COEFFICIENT
H
= K3, 50 ppm/K
E
= K4, 25 ppm/K
D
= K5, 15 ppm/K
PACKAGING
AM500 =
A20
BAG100 =
S14
BAG50 =
S09
BAG10 =
S03
BO50* =
B25
*: possible in
N/A
Revision: 12-Sep-14
Document Number: 52009
3
For technical questions, contact:
sferfixedresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of
typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding
statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a
particular product with the properties described in the product specification is suitable for use in a particular application.
Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk.
Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document
or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
Document Number: 91000
Power technology
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