RCMA
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
Ω
to 5 MΩ
Accurate dimensions, high insulation and great
mechanical strength
High climatic performances: - 65 °C/+ 155 °C/56 days
Matching tolerance: 0.1 %
Tracking TCR: 5 ppm/°C
Termination: Pure matte tin
Compliant to RoHS directive 2002/95/EC
DIMENSIONS
in millimeters
25 min.
A
25 min.
SERIES
RCMA02
RCMA05
RCMA08
RCMA1
RCMA2
RCMA4
A
max.
6.7
10.4
16.5
19.3
29
54
ØB
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
g
0.26
0.46
1.3
1.5
4.4
13
ØB
ØC
TECHNICAL SPECIFICATIONS
VISHAY SFERNICE SERIES
NF C 83-230
CECC 40 100-803
Power Rating at 70 °C
Resistance
Value Range
in Relation to
- Tolerance
- Temperature
Coefficient
K3
K4
K5
± 0.2 %
± 0.5 % ± 1 %
± 0.1 % ± 0.2 %
± 0.5 % ± 1 %
± 0.1 % ± 0.2 %
± 0.5 % ± 1 %
RCMA02
K4
RS58P
BE
0.125 W
1
Ω
to 1 MΩ
1
Ω
to 1 MΩ
10
Ω
to 1 MΩ
300 V
720 kΩ
RS63P
CE
0.250 W
1
Ω
to 1 MΩ
1
Ω
to 1 MΩ
10
Ω
to 1 MΩ
350 V
490 kΩ
K3
≤
± 50 ppm/°C
K5
≤
± 15 ppm/°C
> 10
7
MΩ
0.0001 %/V
- 65 °C/+ 155 °C/56 days
RCMA05
K4
RS68P
DE
0.500 W
10
Ω
to 1 MΩ
1
Ω
to 1.5 MΩ
10
Ω
to 1 MΩ
1
Ω
to 1.5 MΩ
10
Ω
to 1.5 MΩ
400 V
320 kΩ
RCMA08
RCMA1
-
-
0.75 W
10
Ω
to 1 MΩ
1
Ω
to 2 MΩ
10
Ω
to 1 MΩ
1
Ω
to 2 MΩ
10
Ω
to 2 MΩ
500 V
333 kΩ
RCMA2
-
-
1W
10
Ω
to 1 MΩ
1
Ω
to 2.5 MΩ
10
Ω
to 1 MΩ
1
Ω
to 2.5 MΩ
10
Ω
to 1 MΩ
600 V
360 kΩ
K4
≤
± 25 ppm/°C
RCMA4
-
-
2W
10
Ω
to 2.5 MΩ
1
Ω
to 5 MΩ
10
Ω
to 2.5 MΩ
1Ω to 5MΩ
10
Ω
to 2 MΩ
800 V
320 kΩ
10
Ω
to 332 kΩ 10
Ω
to 332 kΩ
10
Ω
to 332 kΩ 10
Ω
to 332 kΩ
10
Ω
to 332 kΩ 10
Ω
to 332 kΩ 10
Ω
to 750 kΩ 10
Ω
to 750 kΩ
10
Ω
to 2.5 MΩ 10
Ω
to 2.5 MΩ
Maximum Voltage
Critical Resistance
Temperature
Coefficient
Rated in the range
- 55 °C to + 155 °C
Typical in the range
0 °C to + 155 °C
Insulation Resistance
Voltage Coefficient
Environmental Specifications
Note
•
Undergoes European Quality Insurance System (CECC)
Document Number: 52009
Revision: 05-Oct-09
For technical questions, contact:
sfer@vishay.com
www.vishay.com
171
RCMA
Vishay Sfernice
Molded Metal Film Very High Stability (< 0.25 % after 1000 h)
and Precision (up to 0.1 %) Resistors
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
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
- 65 °C
+ 155 °C
+ 155 °C
REQUIREMENTS
≤
±1%
Insulation resistance > 1 GΩ
≤
± (0.25 % + 0.05
Ω)
≤
± (1 % + 0.05
Ω)
Insulation resistance > 1 GΩ
≤
± (0.25 % + 0.05
Ω)
≤
± (1 % + 0.05
Ω)
Insulation resistance > 1 GΩ
≤
± (0.25 % + 0.05
Ω)
≤
± (0.25 % + 0.05
Ω)
≤
± (0.25 % + 0.05
Ω)
≤
± (1 % + 0.05
Ω)
Insulation resistance > 1 GΩ
-
TYPICAL VALUES
AND DRIFTS
± 0.25 % or 0.05
Ω
± 0.1 % or 0.05
Ω
± 0.2 % or 0.05
Ω
± 0.1 % or 0.05
Ω
± 0.25 % or 0.05
Ω
Insulation resistance 10
6
MΩ
± 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
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
POWER RATING
100
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.
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 %
Temperature coefficient
between - 10 °C and + 70 °C
50
LONG LIFE
90’/30’ cycles
ambient temperature 70 °C
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 %.
0
0
30
50
70
100
125
150
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.
For these applications and other requirements consult
Vishay Sfernice.
TEMPERATURE RISE
50
HOT SPOT TEMPERATURE IN °C
40
M
RC
A4
30
R
CM
A2
MARKING
Printed: Vishay Sfernice trademark, series, style (due to lack
of space RCMA02 is printed MA02), ohmic value (in
Ω),
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
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172
For technical questions, contact:
sfer@vishay.com
Document Number: 52009
Revision: 05-Oct-09
RCMA
Molded Metal Film Very High Stability (< 0.25 % after 1000 h)
Vishay Sfernice
and Precision (up to 0.1 %) Resistors
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 kΩ
33001
= 33 kΩ
220R0
= 220
Ω
1R220
= 1.22
Ω
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
Document Number: 52009
Revision: 05-Oct-09
For technical questions, contact:
sfer@vishay.com
www.vishay.com
173
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
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 herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
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.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
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