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31

RCMA

Vishay Sfernice

Document Number: 52009

Revision 25-Jul-02

For technical questions, contact sfer@vishay.com

VISHAY SFERNICE SERIES

NF C 83-230

CECC 40 100-803

Power Rating at 70°C

± 0.2%

± 0.5% ± 1%

± 0.1% ± 0.2%

± 0.5% ± 1%

± 0.1% ± 0.2%

± 0.5% ± 1%

Resistance

Value Range

in Relation to

– Tolerance

– Temperature

Coefficient

Maximum Voltage

Critical Resistance

Temperature

Coefficient

rated in the range

– 55°C/+ 155°C

typical in the range

0°C/+ 155°C

Insulation Resistance

Voltage Coefficient

Environmental Specifications

K3

≤ ± 50ppm/°C

K4

≤ ± 25ppm/°C

K5

≤ ±15ppm/°C

> 10

Ω

0.0001% Volt

– 65°C/+ 155°C/56 days

RCMA 02

BE

0.125W

10

Ω

332k

Ω

1

Ω

1M

Ω

10

Ω

332k

Ω

1

Ω

1M

Ω

10

Ω

332k

Ω

10

Ω

1M

Ω

300V

720k

Ω

K4

RS58P

RCMA 05

CE

0.250W

10

Ω

332k

Ω

1

Ω

1M

Ω

10

Ω

332k

Ω

1

Ω

1M

Ω

10

Ω

332k

Ω

10

Ω

1M

Ω

350V

490k

Ω

K4

RS63P

RCMA 08

DE

0.500W

10

Ω

1M

Ω

1

Ω

1.5M

Ω

10

Ω

1M

Ω

1

Ω

1.5M

Ω

10

Ω

750k

Ω

10

Ω

1.5M

Ω

400V

320k

Ω

RS68P

RCMA 1

–

0.75W

10

Ω

1M

Ω

1

Ω

2M

Ω

10

Ω

1M

Ω

1

Ω

2M

Ω

10

Ω

750k

Ω

10

Ω

2M

Ω

500V

333k

Ω

–

RCMA 2

–

1W

10

Ω

1M

Ω

1

Ω

2.5M

Ω

10

Ω

1M

Ω

1

Ω

2.5M

Ω

10

Ω

1M

Ω

10

Ω

2.5M

Ω

–

2W

10

Ω

2.5M

Ω

1

Ω

5M

Ω

10

Ω

2.5M

Ω

1

Ω

5M

Ω

10

Ω

2M

Ω

10

Ω

2.5M

Ω

600V

360k

Ω

–

RCMA 4

800V

320k

Ω

–

K3

K4

K5

Undergoes European Quality Insurance System (CECC)

FEATURES

• 0.1W to 2W at 70°C

• NF C 83-230

• CECC 40 100

• Very high stability: drift < 0.1% after 1000 hours

• Reduced total excursion: high initial precision (to ± 0.1%)

with low temperature coefficient (down to ± 15ppm/°C)

• High reliability

• These models of this series have been the first ones qual

ified by the CNES for spatial applications (certificate N°4

dated October 22, 1972)

• Wide range ohmic values 1

Ω to 5MΩ

• Accurate dimensions, high insulation and great

mechanical strength

• High climatic performances: – 65°C/+ 155°C/56 days

• Matching tolerance: 0.1%

• Tracking T.C.: 5ppm/°C

Molded Metal Film Very High Stability and

Precision Resistors

DIMENSIONS in millimeters

SERIES

DIMEN-

SIONS

RCMA 02

6.7

2.5

0.6

0.26

RCMA 05

10.4

3.66

0.6

0.46

RCMA 08

16.5

6.4

0.8

1.3

RCMA 1

19.3

6.4

0.8

1.5

RCMA 2

29

10.2

0.8

4.4

RCMA 4

54

10.2

0.8

13

A max.

Ø B max.

Ø C

Unit weight in g

TECHNICAL SPECIFICATIONS

25 min.

25 min.

A

Ø C

Ø B