RCMS02, RCMS05, RCMS1

Vishay Sfernice

Molded Metal Film High Stability Resistors

www.vishay.com

Document Number: 52007

166

Revision: 02-Oct-09

POWER RATING

TEMPERATURE RISE

PRACTICAL OPERATING TOLERANCES

Tables 2 and 3 show the basic characteristics and max.

values under different stresses. In fact, the values and drifts

are maintained to within narrower limits.

Thus, in operation under the specified conditions (

70 °C) the total drift (load life + TCR) of a RCMS K3 does not

exceed ± 0.5 %.

NOISE LEVEL

In a frequency decade, the average noise level increases

with the ohmic value and can reach 0.3 µV/V for the highest

values. It is non measurable for

Ω.

MARKING

Printed: Vishay Sfernice trademark, series, style NF style (if

applicable), ohmic value (in

Ω), tolerance (in %), temperature

coefficient, manufacturing data. Due to lack of space RCMS

02 is printed MS 02.

PERFORMANCE

CECC 40 100

EN 140-100

TYPICAL VALUES

AND DRIFTS

TESTS

CONDITIONS

REQUIREMENTS

Load Life at max. Category Temperature

1000 h at 125 °C 50 % of

≤ ± (1 % + 0.05 Ω)

Insulation resist. > 1 G

Ω

± 0.5 % or 0.05

Ω

Ω

Short Time Overload

2.5

limited to 2

≤ ± (0.25 % + 0.05 Ω)

± 0.1 % or 0.05

Ω

Damp Heat Humidity

(Steady State)

56 days

with low load

≤ ± (1 % + 0.05 Ω)

Insulation resist. > 1 G

Ω

± 0.5 % or 0.05

Ω

Ω

Rapid Temperature Change

- 55 °C + 125 °C

≤ ± (0.25 % + 0.05 Ω)

± 0.1 % or 0.05

Ω

Climatic Sequence

- 55 °C + 125 °C

severity 1

≤ ± (0.5 % + 0.05 Ω)

Insulation resist. > 1 G

Ω

± 0.1 % or 0.05

Ω

Ω

Terminal Strength

Pull - twist - 2 bends

≤ ± (1 % + 0.05 Ω)

± 0.05 % or 0.05

Ω

Vibration

10 - 500 Hz

≤ ± (0.25 % + 0.05 Ω)

± 0.05 % or 0.05

Ω

Soldering (Thermal Shock)

+ 260 °C 10 s

≤ ± (0.25 % + 0.05 Ω)

± 0.1 % or 0.05

Ω

Load Life

Cycle 90’/30’

1000 h at

≤ ± (1 % + 0.05 Ω)

Insulation resist. > 1 G

Ω

± 0.2 % or 0.05

Ω

Ω

Shelf Life

1 year

ambient temperature

-

± 0.1 % or 0.05

Ω

AMBIENT TEMPERATURE IN (°C)

100

50

0

0

30

50

70

100

125

150

RATED POWER IN (W)

60

40

20

0

5

0

S

M

C

R

1

S

M

C

R

0

0.25

0.5

0.75

1

Temperature coefficient

between - 10 °C and + 70 °C

K3

≤ 30 ppm/°C

LONG LIFE

90’/30’ cycles

ambient temperature 70 °C

1000 h at

± 0.25 %

10 000 h at

± 0.5 %