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NPFC - MIL-R-28776

RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR

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Organization: NPFC
Publication Date: 18 July 1994
Status: inactive
Page Count: 48
scope:

This specification establishes the general requirements for relays that use a combination of solid state circuit input elements functioning with an electro-mechanical relay that performs the switching functions associated with control system applications (see 6.1). These relays are designed to operate in low and medium power switching circuits with contact ratings up to 1 ampere alternating current (ac) or direct current (dc). The failure rate level is established at a confidence level of 90 percent for qualification and 60 percent for maintenance of qualification based on 100,000 cycles at +125°C under rated load conditions specified herein. Excludes time delay relays. CAUTION: The use of any coil voltage less than the rated coil voltage will compromise the operation of the relay. CAUTION: Pick-up, hold, and dropout voltages are for test purposes only and are not to be used as design criteria. For additional application and caution information, see 6.1.

The PIN shall consist of the letter "M", the basic number of the specification sheet, an assigned dash number (see 3.1), and a suffix letter designating failure rate level (see table I) as shown in the following example:

The failure rate level designation is shown in table I (see 4.6). TABLE I. Failure rate level designation.

Failure rate level Failure rate level designation (percent per 10,000 cycles) --------------------------------------------------------- L 3.0 M 1.0 P 0.1 R 0.01

Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Defense Electronics Supply Center, ATTN: DESC-ELD, 1507 Wilmington Pike, Dayton, OH 45444-5765, by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.

intended Use:

Relays conforming to this specification are intended for use in electronic and communication equipment. Their principal areas of application are for aircraft, missiles, spacecraft and... View More

Document History

September 20, 2017
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
September 20, 2017
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
February 2, 2017
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
This specification establishes the general requirements for relays that use a combination of solid state circuit input elements functioning with an electro-mechanical relay that performs the...
February 2, 2017
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
August 20, 2014
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
This specification establishes the general requirements for relays that use a combination of solid state circuit input elements functioning with an electro-mechanical relay that performs the...
August 20, 2014
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
September 10, 2012
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
September 10, 2012
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
This specification establishes the general requirements for relays that use a combination of solid state circuit input elements functioning with an electro-mechanical relay that performs the...
December 19, 2011
Relays, Hybrid, Established Reliability, General Specification for
This specification establishes the general requirements for relays that use a combination of solid state circuit input elements functioning with an electro-mechanical relay that performs the...
September 26, 2005
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
This specification establishes the general requirements for relays that use a combination of solid state circuit input elements functioning with an electro-mechanical relay that performs the...
November 1, 2002
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
This specification establishes the general requirements for relays that use a combination of solid state circuit input elements functioning with an electro-mechanical relay that performs the...
November 1, 2002
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
June 30, 1998
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
June 13, 1995
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
August 16, 1994
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
MIL-R-28776
July 18, 1994
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
This specification establishes the general requirements for relays that use a combination of solid state circuit input elements functioning with an electro-mechanical relay that performs the...
September 17, 1992
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
December 3, 1991
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
January 28, 1985
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
August 2, 1984
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
October 22, 1982
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
October 22, 1982
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
This specification establishes the general requirements for relays that use a combination of solid state circuit input elements functioning with an electro-mechanical relay that performs the...
February 14, 1975
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.
December 30, 1971
RELAYS, HYBRID, ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR
A description is not available for this item.

References

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