MIL-PRF-28750F
The transient voltage test shall then be performed as specified in 4.7.7.17.
d.
e.
f.
After the above tests, SSR's shall be subjected to the insulation resistance, DWV, and the electrical
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order
(see 6.2). When packaging of materiel is to be performed by DoD or in-house contractor personnel, these personnel
need to contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are
maintained by the Inventory Control Point's packaging activities within the Military Service or Defense Agency, or
within the military service's system commands. Packaging data retrieval is available from the managing Military
Department's or Defense Agency's automated packaging files, CD-ROM products, or by contacting the responsible
packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)
6.1 Intended use. SSR's conforming to this specification are intended for use in communication, radar, digital
control, and other electronic systems. Their principle areas of application are for aircraft, missiles, spacecraft,
shipboard, and ground-support equipment. SSR's covered by this specification shall be able to operate satisfactorily
in systems under the following demanding conditions: Operating temperature range of -55°C to +125°C, 20 g's to 100
g's of vibration, 50 g's to 1,500 g's of shock, up to 5,000 g's of acceleration, and have reduced susceptibility to
corrosion in salt water environments. These requirements are verified under a qualification system.
CAUTION: Users are cautioned to ensure that temperature limitations, transient voltages, and momentary current
overloads do not exceed the applicable parameters of a SSR proposed for a specific application. During high voltage
testing, due caution should be exercised to avoid damage. Polarity, when applicable, should be observed. Due to the
use of nonlinear-response assembly parts and the inherent difference between electromechanical and SSR's, output
impedance values for like rated electromechanical relays and SSR's are not necessarily the same.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a.
Title, number, and date of this specification.
b.
Title, number, and date of the applicable specification sheet, and the PIN.
c.
Packaging requirements (see 5.1).
6.3 Qualification. With respect to products requiring qualification, awards will be made only for products which are,
at the time of award of contract, qualified for inclusion in Qualified Products List QPL No. 28750 whether or not such
products have actually been so listed by that date. The attention of the contractors is called to these requirements,
and manufacturers are urged to arrange to have the products that they propose to offer to the Federal Government
tested for qualification in order that they may be eligible to be awarded contracts or orders for the products covered by
this specification. Information pertaining to qualification of products may be obtained from (Passive Devices Team,
P.O. Box 3990, Columbus, OH 43218-3990, vqp.arw@dla.mil or vqp.kr@dla.mil). An online listing of products
qualified to this specification may be found in the Qualified Products Database (QPD) at https://assist.dla.mil.
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