MIL-DTL-19648 Relays, Time Delay, Thermal, General Specification ForThis specification covers the general requirements for thermal, time delay relays for use in electrical applications. Relays covered by this specification are capable of meeting the electrical and environmental requirements when mounted directly to the structure of aircraft, missile, spacecraft, ship, and other primary vehicles or in ground support and shipboard equipment. Other ratings may be as specified \(see 3.1\).

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MIL-DTL-19648E

1.2.2.2 Temperature class. The temperature class is to be in accordance with table II as specified (see

3.1 and 6.2.1).

TABLE II. Temperature class.

Class

Operating ambient temperature

range, �C

-55 to +85

-65 to +125

1.2.2.3 Vibration. The vibration levels is to be in accordance with table III as specified (see 3.1 and

6.2.1).

TABLE III. Vibration level.

MIL-STD-202

Frequency range

Level

Acceleration

Method

Condition

value

10G

10 to 55 Hz

201

10G

10 to 500 Hz

204

15G

10 to 2000 Hz

204

20G

10 to 2000 Hz

204

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 listed in the issue of the Department of Defense Index of

Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2).

STANDARDS

DEPARTMENT OF DEFENSE

MIL-STD-130

Identification Marking of US Military Property.

MIL-STD-202

Test Methods for Electronic and Electrical Component Parts.

MIL-STD-889

Dissimilar Metals.

MIL-STD-1285

Marking of Electrical and Electronic Parts.

(Unless otherwise indicated, copies of the above specifications, standards, and handbooks are

available from the Document Automation and Production Service, Building 4D (DPM-DODSSP), 700

Robbins Avenue, Philadelphia, PA 19111-5094.)