EIA RS-172-B-1975

$25.35

Fixed Composition Resistors

Published By	Publication Date	Number of Pages
ECIA	1975	24

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Category: ECIA

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This standard covers insulated, fixed resistors having a
composition resistance element and capable of full load
operation at an ambient temperature of 70°C. This standard
describes minimum *limits of performance commonly observed in
commercially available products, There are products available with
higher levels of performance for some characteristics.

CLASSIFICATION

Type Designation – The type designation shall be in the
following form and as specified in 2.18:

Style – The style shall be identified by a three letter
symbol "RRC" followed by a two-digit number; the letters identify
insulated, composition, fixed resistors, and the number identifies
the she and power rating of the resistor. See Table II.

Resistance – The nominal resistance value expressed in
ohms shall be identified by a three-digit number; the first two
digits represent significant figures and the last digit specifies
the number of zeros to follow. When values less than 10 ohms are
required, the letter "R" shall be substituted for one of the
significant digits to represent the decimal point.