MIL-R-93 Resistors, Fixed, Wire-Wound, Accurate, General Specification ForThis specification covers the general requirements for accurate, wire-wound, fixed resistors having a maximum resistance tolerance of 1 percent, with the winding protected against high humidity. The resistors are rated for continuous full load operation at any ambient temperature up to 125 Degrees C, and derated up to 145 Degrees C. They are not capable for application where alternating current ac characteristics are of critical importance. Performance characteristics are in accordance with table I.

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INCH-POUND

MIL-R-93F

5 April 2007

SUPERSEDING MIL-R-93E

5 October 2001

MILITARY SPECIFICATION

RESISTORS, FIXED, WIRE-WOUND (ACCURATE), GENERAL SPECIFICATION FOR

INACTIVE FOR NEW DESIGN AFTER 22 NOVEMBER 1968.

FOR NEW DESIGN USE MIL-PRF-39005

This specification is approved for use by all Departments and Agencies of the Department of Defense.

1.  SCOPE

1.1  Scope.  This specification covers the general requirements for accurate, wire-wound, fixed resistors having a maximum resistance tolerance of 1 percent, with the winding protected against high humidity.

The resistors are rated for continuous full load operation at any ambient temperature up to 125°C, and derated up to 145°C.  They are not capable for application where alternating current (ac) characteristics

are of critical importance.  Performance characteristics are in accordance with table I.

1.2  Classification.

1.2.1  Part or Identifying number (PIN).  The PIN is in the following form:

1.2.1.1  Style.  The style is identified by the two letter symbol RB followed by a two digit number; the letters identify accurate, wire wound, fixed resistors, and the number identifies the size and power rating of the resistor.

1.2.1.2  Characteristic and terminal.  The characteristic and terminal are identified by a single letter in accordance with table II.

Comments, suggestions, or questions on this document should be addressed to:  Defense Supply Center, Columbus, ATTN: DSCC-VAT, Post Office Box 3990, Columbus Ohio 43218-3990, or emailed to resistor@dla.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https://assist.daps.dla.mil.

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