RMB, RMBS

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Vishay Sfernice

Revision: 23-Sep-13

1

Document Number: 50010

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

Molded Precision Wirewound Resistors

Axial Leads

FEATURES

• 0.75 W to 3 W at 25 °C

•NF C 83-210

• CECC 40201-005

• Low temperature coefficient

 ± 50 ppm/°C

• Low ohmic values 15 m

 available

• Excellent behavior against humidity

• Electrical insulation

• Mechanical strength

• Accurate sizes

• Termination = Sn/Ag/Cu or pure matte tin according to the

ohmic value

• Material categorization: For definitions of compliance

High stability and low temperature coefficient are the main features of the precision wirewound resistors type RMB RMBS

models just as maintenance parts. Their performances can be compared with those of the best film resistors but they have in

addition a greater power rating. RMBS styles meet the more severe requirements of NF C 83-210 (all RMBS styles are approved)

and characteristic U of MIL-R-26 E (approximate size of RW 70 and 79 resistors) specifications. The two models RMB and

RMBS have a similar construction. RMBS are submitted, in addition to a process which further increases the stability. On

request, non-inductive resistors are available under the reference RMB NI.

Note

•

Undergoes European Quality Insurance System (CECC)

DIMENSIONS in millimeters

SERIES

AND



STYLE

A

max.

Ø B

max.

E ± 0.1

WEIGHT

g

RMB0.75



RMBS0.5

7

2.5

0.6

0.3

RMB1.5



RMBS1

10.2

4

0.6

0.7

RMB3



RMBS2

16.2

6.4

0.8

1.5

STANDARD ELECTRICAL SPECIFICATIONS

MODEL

SIZE

RESISTANCE

RANGE



RATED POWER

W

LIMITING ELEMENT

VOLTAGE

V

TOLERANCE

± %

RMB0.75

075

0.1 to 2K

0.75

n/a

0.1, 0.5, 1, 2, 5

RMB1.5

105

0.1 to 6.81K

1.5

120

0.1, 0.5, 1, 2, 5

RMB3

300

0.051 to 13K

3

200

0.1, 0.5, 1, 2, 5

RMBS0.5

05

0.1 to 2K

0.5

n/a

0.1, 0.5, 1, 2, 5

RMBS1

10

0.1 to 6.81K

1

120

0.1, 0.5, 1, 2, 5

RMBS2

20

0.015 to 13K

2

200

0.1, 0.5, 1, 2, 5

25 min.

25 min.

A

Ø B

Ø E