scope:

This standard establishes the requirements for acceptable design, manufacturing, and quality control criteria for custom electromagnetic devices for space applications.

When this document is referenced or is used as a standard for the design, processing, manufacturing and screening of custom electromagnetic devices for space flight applications, such design, processing, manufacturing, and screening shall be in full conformance with all the applicable general and detailed requirements of this standard for the individual device type. Any device meeting only selected provisions of this standard is considered noncompliant.

Compliant electromagnetic devices shall meet without exception all of the applicable requirements and quality standards of MIL-STD-981. Any device that is processed with deviations, omissions, or does not meet the full intent of this standard shall not be claimed to be compliant.

Any device that is processed with deviations and which is not processed in compliance with the provisions of this standard shall not be claimed to be compliant and shall not be marked in any manner that would indicate compliance or partial compliance. Only compliant devices shall be marked in accordance with 5.4. All applicable documentation (including detail specifications and responses to Request For Quotations invoking MIL-STD-981) shall clearly and specifically define the areas of nonconformance and identify each as a deviation.

Table I shows the numerical designations that are used in this standard to indicate various device types.

Supersedes page 1 of MIL-STD-981B

TABLE I. Device types.

Applicable Military Device Type Family Specification -------------------------------------------------------------- Transformer, power 03 MIL-T-27 Inductor, power 04 MIL-T-27 Transformer, R.F., fixed 11 MIL-T-55631 Transformer, R.F., variable 12 MIL-T-55631 Coil, R.F., fixed 13 MIL-C-15305 Coil, R.F., variable 14 MIL-C-15305 Inductor, audio 20 MIL-T-27 Transformer, audio 21 MIL-T-27 Transformer, pulse, low power 31 MIL-T-21038 Transformer, pulse, high power 36 MIL-T-27 Inductor, charging 37 MIL-T-27 Transformer, saturable 40 MIL-T-27 Inductor, saturable 41 MIL-T-27 Coil, R.F. chip, fixed 50 MIL-C-83446 Coil, R.F. chip, variable 51 MIL-C-83446

Two classes of requirements are defined in this standard. Class S parts are intended for critical flight and mission-essential ground support applications and any application that is critical to safety. Class B parts are for use in noncritical flight and non-mission-essential ground support applications.

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