MIL-PRF-28776 Relays, Hybrid, Established Reliability, General Specification ForThis 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.

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MIL-PRF-28776F

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 of 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 SPECIFICATIONS

(See supplement 1 for list of associated specifications.)

DEPARTMENT OF DEFENSE STANDARDS

MIL-STD-202

Electronic and Electrical Component Parts.

MIL-STD-690

Failure Rate Sampling Plans and Procedures.

MIL-STD-750-1 -

Environmental Test Methods for Semiconductor Devices Part 1: Test Methods 1000

through 1999.

MIL-STD-790

Established Reliability and High Reliability Qualified Products List (QPL) Systems for

Electrical, Electronic and Fiber Optic Parts Specifications.

MIL-STD-883

Microcircuits.

MIL-STD-1276

Leads for Electronic Component Parts.

MIL-STD-1285

Marking of Electrical and Electronic Parts.

MIL-STD-1686

Electrostatic Discharge Control Program for Protection of Electrical and Electronic

Parts. Assemblies and Equipment (Excluding Electrically Initiated Explosive

Devices).

DEPARTMENT OF DEFENSE HANDBOOKS

MIL-HDBK-263 -

Electrostatic Discharge Control Handbook for Protection of Electrical and Electronic

Parts, Assemblies and Equipment (Excluding Electrically Initiated Explosive Devices)

(Metric).

MIL-HDBK-338 -

Electronic Reliability Design.

(Copies of these documents are available online at https://quicksearch.dla.mil.)

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 these documents are those cited in the solicitation or contract.

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM B488

Electrodeposited Coatings of Gold for Engineering Uses.

(Copies of this document are available from www.astm.org.)

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS

IEEE 315

- Graphic Symbols for Electric and Electronic Diagrams (Including Reference Designation

Letters).

(Copies of this document are available from www.ieee.org.)