1、INCH POUNDMIL -PRF -39010E27 August 1997SUPERSEDINGMIL -C -39010D4 January 1994PERFORMANCE SPECIFICATIONCOIL, RADIO FREQUENCY, FIXED, MOLDED,ESTABLISHED RELIABILITY AND NONESTABLISHED RELIABILITY,GENERAL SPECIFICATION FORThis specification is approved for use by all Departmentsand Agencies of the De
2、partment of Defense. 1. SCOPE1.1 Scope . This specification covers the general requirements for established reliability (ER) andnonestablished reliability (non-ER) fixed, radio frequency, molded coils. Established reliability radiofrequency coils covered by this specification have failure rate level
3、s (FRL) ranging from 1.0 percent per1,000 hours to 0.001 percent per 1,000 hours which are established at a 60 percent confidence level (see1.2.1.4). The FRL identified by the applicable symbol specified in table III refers to operation at full loadcyclic condition at the specified ambient temperatu
4、re (see 3.1).1.2 Classification .1.2.1 Part or Identifying Number (PIN) . The PIN consists of the letter M, the basic number of thespecification sheet, and alphanumeric designators (see 3.1) as shown in the following example:M39010/01 A 1R0 J M| | | | | | | | | Specification Class Inductance Inducta
5、nce Product levelsheet number (see 1.2.1.1) (see 1.2.1.2) tolerance designator(see 1.2.1.3) (see 1.2.1.4)Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be ofuse in improving this document should be addressed to: US Army Communications-ElectronicsCommand,
6、 ATTN: AMSEL-LC-LEO-E-EP, Fort Monmouth, NJ 07703-5023 by using the StandardizationDocument Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.AMSC N/A FSC 5950DISTRIBUTION STATEMENT A . Approved for public release; distribution is unlimited.Copyright Communicatio
7、ns - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39010E21.2.1.1 Class . The classes of coils denoting the maximum operating temperatures (see 3.1) areidentified by a single letter in accordance
8、with table I.TABLE I. Maximum operating temperature .Class TemperatureABFC1051251501.2.1.2 Inductance . The nominal inductance value expressed in microhenries ( H) is identified bythree symbols in accordance with the following:Nominal inductance values less than 10 H are identified with two numbers
9、representing thesignificant figures and the letter (R) designating decimal point location.Example: 0.12 H = R12; 1.2 H = 1R2Nominal inductance values of 10 H and greater are identified by a 3 -digit number. The first t wodigits represent significant figures, and the last digit specifies the number o
10、f zeroes to follow.Example: 12 H = 120; 120 H = 1211.2.1.3 Inductance tolerance . The inductance tolerance is identified by a single letter in accordancewith table II.TABLE II. Inductance tolerance .Symbol ToleranceJKLpercent 5 10 201.2.1.4 Product level designation . The specified FRL per 1,000 hou
11、rs, for the indicated product leveldesignation, is initially established at the 60 percent consumers confidence level and maintained at a 10percent producers risk and is identified by a single letter in accordance with table III and as described inMIL-STD-690.Copyright Communications - Electronics C
12、ommand Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39010E3TABLE III. Product level designator .Symbol FRLCMPRSNon-ER1.0 0.1 0.01 1 /0.001 1 / FR in percent/1,000 hours.2. APPLICABLE DOCUMENTS2.1 General . The docum
13、ents listed in this section are specified in sections 3 and 4 of thisspecification. This section does not include documents cited in other sections of this specification orrecommended for additional information or as examples. While every effort has been made to ensurethe completeness of this list,
14、document users are cautioned that they must meet all specifiedrequirements 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, andhandbooks form a
15、 part of this document to the extent specified herein. Unless otherwise specified, theissues of these documents are those listed in the issue of the Department of Defense Index ofSpecifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2).SPECIFICATIONSDEPARTMEN
16、T OF DEFENSEMIL-I-46058 - Insulating Compound, Electrical (For Coating Printed Circuit Assemblies).(See supplement 1 for list of specification sheets.)STANDARDSDEPARTMENT OF DEFENSEMIL -STD -202 - Test Methods for Electronic and Electrical Component Parts.MIL -STD -690 - Failure Rate Sampling Plans
17、and Procedures.MIL -STD -790 - Established Reliability and High Reliability Qualified Products List (QPL)Systems for Electrical, Electronic, and Fiber Optic PartsMIL -STD -810 - Environmental Tes t Methods these shall not beconcentrated in one area. Bare base metal where the solder dip failed to cov
18、er the original coating is anindication of poor solderability, and shall be cause for failure. In case of dispute, the percent of coveragewith pinholes or rough spots shall be determined by actual measurement of these areas, as compared tothe total area. Electrical connections shall be mechanically
19、secure before soldering and electricallycontinuous after soldering.3.17 Resistance to solvents (nonlaser marked units only) . When coils are tested as specified in4.8.13, there shall be no evidence of mechanical damage and the marking shall remain legible.3.18 Flammability . When coils are tested as
20、 specified in 4.8.14, there shall be no evidence of violentburning which results in an explosive -type fire, and the coating material used on the coils shall beself -extinguishing (see 6.4). A coil shall not be considered to have failed in the event that it is consumedby the applied flame. A coil sh
21、all be considered to have failed only if an explosion or dripping of flamingmaterial occurs, an explosive -type flame is produced, or if visible burning continues beyond theallowable duration of 3 minutes after removal of the applied flame.3.19 Low temperature storage . When coils are tested as spec
22、ified in 4.8.15, there shall be noimpairment of protective coating, no loosening of the windings or terminals, nor any other evidence ofmechanical damage.3.20 Vibration . When coils are tested as specified in 4.8.16 there shall be no winding discontinuity(see 3.11), nor evidence of physical or mecha
23、nical damage.3.21 Shock (specified pulse) . When coils are tested as specified in 4.8.17, there shall be no windingdiscontinuity (see 3.11), nor evidence of physical or mechanical damage.3.22 Moisture resistance . When coils are tested as specified in 4.8.18, the dielectric withstandingvoltage shall
24、 meet the requirements specified in 3.8, the insulation resistance shall be as specified in3.10, the electrical characteristics shall be as specified in 3.7, and there shall be no evidence ofcorrosion affecting the mechanical or electrical operation.3.23 Life .3.23.1 Qualification inspection . When
25、coils are tested in accordance with 4.8.19, there shall be noevidence of mechanical damage. Initial measurements shall be in accordance with the electricalcharacteristics (initial) requirements of the individual component specification sheet. Succeedingmeasurements up, to and including, the 2,000 ho
26、urs shall be in accordance with the electricalcharacteristics (final) requirements of the individual components specification sheet (see 3.1).Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license fr
27、om IHS-,-,-MIL-PRF-39010E93.23.2 FRL determination (extended FR test) . When coils are tested in accordance with 4.8.19, thereshall be no evidence of mechanical damage. Initial measurements shall be in accordance with theelectrical characteristics (initial) requirements of the individual component s
28、pecification sheet. Succeeding measurements up to and including the 10,000 hours shall be in accordance with theelectrical characteristics (final) requirements of the individual components specification sheet (see 3.1).3.24 Fungus . All external materials shall be nonnutrient to fungus growth or sha
29、ll be suitably treatedto retard fungus growth. The manufacturer shall certify that all external materials are fungus resistant orshall perform the test specified in 4.8.20. There shall be no evidence of fungus growth on the externalsurfaces.3.25 Marking . Coils shall be marked as specified herein. P
30、aper labels shall not be used. Othermarkings which in any way interfere with, obscure, or confuse those specified herein, are prohibited. Each coil shall be legibly marked that will withstand the environmental conditions specified herein. Atthe option of the manufacturer, coils may be laser marked.
31、The marking shall remain legible after alltests.3.25.1 Marking legibility (laser marking only) . When tested as specified in 4.8.1.3 the marking shallremain legible.3.25.2 Full marking . Marking shall be in accordance with method I of MIL -STD -1285. Unlessotherwise specified (see 3.1), coils shall
32、be marked with the PIN, manufacturers CAGE (Commercial andGovernment Entity) code, JAN marking, date code, and lot symbol as shown in the following example:(see 6.2).Example: M39010/ PIN01A1R0KMJAN 7233A JAN marking, date code, and lot symbol12345 Manufacturers CAGE codeAt the option of the manufact
33、urer, three lines may be used for the PIN. In this event the divisions shallbe as specified in the following example:Example: M39010/01A PIN1ROKMJ7233A JAN marking, date code, and lot symbol12345 Manufacturers CAGE codeCopyright Communications - Electronics Command Provided by IHS under license with
34、 CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39010E103.25.3 JAN and J marking . The United States Government has adopted, and is exercising legitimatecontrol over the certification marks “JAN“ and “J“, respectively, to indicate that items so marked
35、oridentified are manufactured to, and meet all the requirements of specifications. Accordingly, itemsacquired to and meeting all of the criteria specified herein and in applicable specifications shall bear the certification mark “JAN“ except that items too small to bear the certification mark “JAN“
36、shall bear theletter “J“. The “JAN“ or “J“ shall be placed immediately before the part number except that if suchlocation would place a hardship on the manufacturer in connection with such marking, the “JAN“ or “J“may be located on the first line above or below the part number. Items furnished under
37、 contracts ororders which either permit or require deviation from the conditions or requirements specified herein or inapplicable specifications shall not bear “JAN“ or “J“. In the event an item fails to meet the requirementsof this specification and the applicable specification sheets or associated
38、 specifications, themanufacturer shall remove completely the military part number and the “JAN“ or the “J“ from the sampletested and also from all items represented by the sample. The “JAN“ or “J“ certification mark shall notbe used on products acquired to contractor drawings or specifications. The
39、United States Governmenthas obtained Certificate of Registration Number 504,860 for the certification mark “JAN“ andRegistration Number 1,586,261 for the certification mark “J”.3.25.4 Substitutability of product levels . A manufacturer may supply to those product levels, as listedin table IV, with f
40、ailure rates (FR) higher than that to which he is qualified. Parts with lower FR aresubstitutable, with acquiring agency approval, for higher FR parts, provided the lot date codes of theparts are not changed.TABLE IV. Product level substitution .Parts qualified toproduct levelAre substitutable forpr
41、oduct levelSRPCC, M, P, and RC, M and PC and M3.25.5 Supplying to lower inductance tolerance levels . Parts qualified to lower inductance tolerancelevels with procuring activity approval are suitable for higher tolerance levels as long as the label reflectsthe correct inductance (see table V). Parts
42、 that are physically marked shall not be remarked unlessspecified in the contract or order (see 6.2).TABLE V. Inductance tolerance substitution .Parts qualified toinductance toleranceAre substitutable forinductance toleranceJ(5)K(10)K(10), L(20)L(20)3.26 Workmanship . Coils shall be processed in suc
43、h a manner as to be uniform in quality and free ofdefects that will affect life, serviceability, or appearance.Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39010E114. V
44、ERIFICATION4.1 Classification of inspections . The inspection requirements specified herein are classified asfollows:a. Qualification inspection (see 4.4).b. Verification of qualification (see 4.5).c. Conformance inspection (see 4.6).d. Periodic inspection (see 4.7).4.2 QPL system . A QPL system sha
45、ll be established and maintained in accordance with 3.3. Evidence of such compliance is a prerequisite for qualification and retention of qualification.4.3 Inspection conditions . Unless otherwise specified, all inspections shall be performed inaccordance with the test conditions as specified in the
46、 “General Requirements“ of MIL -STD -202. Theexception to those conditions is the Relative Humidity which should be in the range of 15 percent to 75percent.4.3.1 Test voltage . The test voltage shall contain no more than 5 percent harmonic distortion.4.3.2 Test frequency . When a test frequency is s
47、pecified without a tolerance, the frequency used shallbe within 0.1 percent of the specified value.4.3.3 Demagnetization . When necessary to overcome remanence effects, demagnetization ispermitted.4.3.4 Test equipment and inspection facilities . Test and measuring equipment and inspection facilities
48、of sufficient accuracy, quality, and quantity to permit performance of the required inspection shall beestablished and maintained by the inspection facility. The establishment and maintenance of acalibration system to control the accuracy of the measuring and test equipment shall be in accordancewit
49、h ANSI/NCSL Z540-1, ISO-10012-1, or equivalent system as approved by the qualifying activity.4.4 Qualification inspection . Qualification inspection shall be performed at a laboratory acceptable tothe Government (see 6.3) on sample units produced with equipment and procedures normally used inproduction.4.4.1 Sample size . The number of sample units compris
