MIL-PRF-27208 Resistor, Variable, Wirewound, Nonprecision General Specification ForThis specification covers the general requirements for multiturn, lead-screw actuated and single turn wirewound, variable resistors with a contact bearing uniformly over the entire surface of the entire resistive element, wound linearly, when positioned by an actuator. These resistors are capable of full load operation \(where maximum resistance is engaged\) at maximum ambient temperature of 85 Degrees C, and are capable for continuous operation when properly derated, at a maximum temperature of 150 Degrees C \(see figure 2\). These resistors have a resistance tolerance of ┬▒5 percent \(see 3.1\).

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MIL-PRF-27208F

2. APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This

section does not include documents cited in other sections of this specification or recommended for additional

information or as examples. While every effort has been made to ensure the completeness of this list, document

users are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this

specification, whether or not they are listed.

2.2 Government documents.

2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a

part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are

those cited in the solicitation or contract.

DEPARTMENT OF DEFENSE SPECIFICATION

- Resistors, Variable, Wire wound, Lead Screw Actuated, Trimmer, Style RT22.

(INACTIVE FOR NEW DESIGN)

MIL-PRF-27208/8 - Resistors, Variable, Wire wound, Lead Screw Actuated, Trimmer, Style RT12.

MIL-PRF-27208/9 - Resistors, Variable, Wire wound, Lead Screw Actuated, Trimmer, Style RT24.

(INACTIVE FOR NEW DESIGN EXCEPT TERMAINAL TYPE "L")

MIL-PRF-27208/10 - Resistors, Variable, Wire wound, Lead Screw Actuated, Trimmer, Style RT26.

- Resistors, Variable, Wire wound (Lead Screw Actuated), Nonestablished Reliability, and

Established Reliability, General Specification for.

DEPARTMENT OF DEFENSE STANDARDS

- Test Methods for Standard Electronic and Electrical Component Parts.

- Environmental Engineering Considerations and Laboratory.

from the Standard Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia PA 19111-5094.)

2.3 Non-government publications. The following documents form a part of this document to the extent specified

herein. Unless otherwise specified, the issues of the documents which are those listed in the solicitation or contract.

AMERICAN NATIONAL STANDARDS (ANS)

Requirements for Electronic Grade Solder Alloys and Fluxed and

Non-Fluxed Solid Solders for Electronic Soldering Applications.

INTERNATIONAL ORGANIZATION for STANDARDS (ISO)

Equipment, Quality Assurance Requirements for Measuring - Part 1:

Meteorological Confirmation System for Measuring Equipment.

(Copies of this document are available from https://www.iso.org/ or from the American National Standards Institute,

11 West 42nd Street, New York, NY 10036.)