1、 EIA STANDARD TP-31D Humidity Test Procedure for Electrical Connectors and Sockets EIA-364-31D (Revision of EIA-364-31C) July 2014 ANSI/EIA-364-31D-2014 Approved: July 21, 2014 EIA-364-31D NOTICE EIA Engineering Standards and Publications are designed to serve the public interest through eliminating
2、 misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards and Publications shall not in any re
3、spect preclude any member or nonmember of ECIA from manufacturing or selling products not conforming to such Standards and Publications, nor shall the existence of such Standards and Publications preclude their voluntary use by those other than ECIA members, whether the standard is to be used either
4、 domestically or internationally. Standards and Publications are adopted by ECIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, ECIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting t
5、he Standard or Publication. This standard is based upon the major technical content of International Electrotechnical Commission standard 60512-11-3 (was 512-6, test 11c), Damp Heat, Steady State, 2002-02, first edition; and 60512-11-12 (was 512-6, test 11m), Damp Heat, Cyclic, 2002-02, first editio
6、n. There are known differences between this standard and the IEC standard. This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health
7、 practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 5210, formulated under the cognizance of the CE-2.0 Committee on EIA National Connector and Sockets Standards.) Published by Electronic Components Industry Association 2014 EIA Standa
8、rds b) Upon completion of preconditioning and recovery to room ambient conditions, all required measurements shall be performed at room ambient conditions and then the test specimens shall be placed in the test chamber and ramped to the specified test conditions; c) Test temperature: 40 C 2 C; d) Hu
9、midity: 90% to 95%; e) Duration: 96 hours, unless otherwise specified in the referencing document; f) Upon completion of the test duration, the test specimens shall be returned to room ambient conditions; g) Specified measurements shall be performed when specified at room ambient conditions. If the
10、referencing document or measurement procedure specifies measurements to be conducted after a recovery period, but does not specify the duration of the recovery period, the recovery period shall be a minimum of 24 hours at room ambient conditions. Specimens shall not be subjected to any means of arti
11、ficial drying. 5.4 Method III, cycling temperature - humidity with optional cold shock and vibration (Discontinued and Superseded by Method IV) Method III has been discontinued and superseded by Method IV. However in legacy applications that specified Method III, step 7b; step 7b shall be performed
12、following step 7a in Method IV. Step 7b consisted of subjecting the specimens (within 15 minutes after completion of step 7a, when specified in the referencing document, and with humidity not controlled) to vibration for 15 minutes, at room ambient temperature; using a simple harmonic motion of 0.15
13、 millimeter (0.006 inch) maximum total excursion, the frequency being varied uniformly between the approximate limits of 10 and 55 Hz. The entire frequency range, from 10 to 55 Hz and return to 10 Hz, shall be traversed in approximately one minute. EIA-364-31D Page 5 5.5 Method IV, cycling temperatu
14、re humidity with optional cold shock (see figure 1) NOTE For cross reference to previous MIL-STD-1344 designations see Annex A. 5.5.1 Unless otherwise specified, the test specimens shall be exposed to the following conditions in the sequence as indicated: a) Precondition in a dry oven at 50 C 5 C fo
15、r 24 hours; b) Upon completion of preconditioning and recovery to room ambient conditions, all required measurements shall be performed at room ambient conditions and then the test specimens shall be placed in the test chamber and ramped to the specified test conditions; c) Temperature: 25 C 3 C to
16、65 C 3 C; d) See figure 1 for temperature and humidity profile; e) Cycle duration: 24 hours; f) Duration): 10 cycles (test duration B); g) Upon completion of the test duration, the test specimens shall be returned to room ambient conditions; h) Specified measurements shall be performed when specifie
17、d at room ambient conditions. If the referencing document or measurement procedure specifies measurements to be conducted after a recovery period, but does not specify the duration of the recovery period, the recovery period shall be a minimum of 24 hours at room ambient conditions. Specimens shall
18、not be subjected to any means of artificial drying. 5.5.2 Sub cycle During step 7, at least 1 hour but not more than 4 hours after step 7 begins, the specimens shall be either removed from the humidity chamber, or the temperature of the chamber shall be reduced, for performance of step 7a, when spec
19、ified in the referencing document. After step 7a, when specified in the referencing document, the specimens shall be returned to 25 C at 90% to 98% relative humidity and kept there until the next cycle begins. This sub cycle shall be performed during any five of the first nine cycles. Sub cycles are
20、 optional. 5.5.3 Step 7a (cold cycle) When specified, at least 1 hour but not more than 4 hours after the beginning of step 7, the specimens shall be either removed from the humidity chamber, or the temperature of the chamber shall be reduced. Specimens shall be conditioned at -10 C 2 C (14 F 4 F) w
21、ith humidity not controlled for 3 hours as indicated in figure 1. When a separate cold chamber is not used, care should be take to assure that the specimens are held at -10 C 2 C (14 F 4 F) for the full 3 hour period. EIA-364-31D Page 6 5.6 Method V, cycling sawtooth temperature humidity (see figure
22、 2) NOTE For cross reference to previous MIL-STD-1344 designations see Annex A. 5.6.1 Unless otherwise specified, the test specimens shall be exposed to the following conditions in the sequence as indicated: a) Conditioning: The specimens shall be conditioned in a dry oven at a temperature of 50 C 5
23、 C for 24 hours. At the end of this period, measurements shall be made as specified; b) Mounting: Specimens shal1 be mounted by their norm mounting means, in their normal mounting position, but shall be positioned so that they do not contact each other, and so that each specimen receives essentially
24、 the same degree of humidity; c) Initial measurements: Prior to step 1 of the first cycle, the specified initial measurements shal1 be made at room ambient conditions, or as specified; d) Number of cycles: Specimens shall be subjected to 10 continuous cycles, each as shown on figure 2. e) Subcycle:
25、The subcycle shal1 be performed in accordance with 5.5.2; f) Step 7a: This step shall be performed in accordance with 5.5.3. 5.6.2 Test a) Place the test item in the test chamber in accordance with 5.5 (1). Prior to starting the test, the internal chamber temperature shal1 be at standard test with u
26、ncontrolled humidity; b) Gradually raise internal chamber temperature to 71 C (160 F) and the relative humidity to 95 percent plus 5 percent minus 0 percent over a period of 2 hours; c) Maintain condition of 5.5 (7) (b) (see figure 2) for not less than 6 hours; d) Maintain 85 percent, or greater, re
27、lative humidity and reduce internal chamber temperature in 16 hours to 28 C 10 C (82 F 18 F); e) Repeat steps 5.5 (7) (b), 5.5 (7) (c) and 5.5 (7) (d) for 10 cycles (not less than 240 hours). Figure 2 is an outline of the humidity cycle for this procedure. 5.7 Miscellaneous profiles Other profiles m
28、ay be used at the discretion of the qualifying agency. In this instance, the following features shall be specified in the referencing document. Preconditioning if required; Temperature extremes; Humidity extremes; Dwell time at temperature extremes; Ramp times as required; Cycle duration for one cyc
29、le; Total test duration. EIA-364-31D Page 7 6 Details to be specified The following details shall be specified in the referencing document: 6.1 Test specimen preparation, if special preparation required 6.2 Initial measurements, and conditions if other than room ambient if required 6.3 Test duration
30、, see table 1 or other 6.4 Test method or special profile 6.5 Final measurement, if required 6.6 At high humidity, if required 6.7 Recovery period, as required 6.8 Number of specimens to be tested 6.9 Define test specimen, mated or unmated 6.10 Wire type, size and sealing plugs, if applicable 7 Test
31、 documentation Documentation shall contain the details specified in clause 6, with any exceptions, and the following: 7.1 Title of test 7.2 Specimen description including fixturing: if applicable 7.3 Test equipment used, and date of last and next calibration 7.4 Test procedure and duration and/or sp
32、ecial instructions 7.5 Values and observations, initial and final ambient conditions 7.6 Name of operator and start/finish date(s) of test EIA-364-31D Page 8 Figure 1 Graphical representation of method IV, cycling temperature humidity with optional cold shock Step4Step 5Step 6Step 723241920212215161
33、7181112131489104590-98%RH012370 65Step16105 0-55Step2Step 360 55 504730 25 20 15Unlessotherwise specified,temperature tolerance is+/- 2 Deg.Catallpointswithinthe chamberexceptthe immediatevicinityofthe specimensand the chamber surfaces.HumidityUncontrolled-10Priortofirstcycleunlessotherwise specifie
34、d.TE M PER A T UR E (DEG R EES C E N T IG R A DE)+10 Deg.C-2Deg.CEnd offinal cycle measurementsasspecified.90-98%RH90-98%RH80-98%RH80-98%RHRateofchangeoftemperatureisunspecified;However,specimensshall notbesubjectedtoradiantheatfromchamber-conditioningprocesses.Initial conditioningina dryoven.24Hour
35、sStep7aVoltage applied asspecified.Onecyclelasts24hours.Repeatasspecified.TIME(HOURS)Step7a performed duringany5 ofthe first9cycles.Humidityuncontrolledduringstep7aonly.40 35EIA-364-31D Page 9 NOTE For optional cold shock subcycle, see 5.5.3. For a graphical representation of the cold shock subcycle
36、, see figure 1. Figure 2- Graphical representation of method V, cycling sawtooth temperature humidity EIA-364-31D Page A-1 Annex A Previous MIL-STD-1344 designations (Informative) This informative annex is provided as a cross reference to the designations previously contained in MIL-STD-1344, method
37、 1002.2. Table A.1 Test condition designation EIA-364-31 designations MIL-STD-1344, method 1002.2 designationsCondition A Condition B Condition B Condition A Condition C Condition C Condition D Condition D Condition E - Table A.2 Test method designation EIA-364-31 designations MIL-STD-1344, method 1
38、002.2 designationsMethod I - Method II Type I Method III - Method IV Type II Method V Type III ECIA Document Improvement Proposal If in the review or use of this document, a potential change is made evident for safety, health or technical reasons, please fill in the appropriate information below and
39、 mail or FAX to: Electronic Components Industry Association EIA Standards & Technology Department 2214 Rock Hill Rd., Suite 265 Herndon, VA 20170 FAX: (571-323-0245) Document No.: Document Title: Submitters Name: Telephone No.: FAX No.: e-mail: Address: Urgency of Change: Immediate: At next revision
40、: Problem Area: a. Clause Number and /or Drawing: b. Recommended Changes: c. Reason/Rationale for Recommendation: Additional Remarks: Signature: Date: FOR ECIA USE ONLY Responsible Committee: Chairman: Date comments forwarded to Committee Chairman: Revision History Revision letter Project number Pub
41、lication date Additions, changes and deletions - SP-1016 December 1969 Initially published in EIA RS-364 A SP-1552 February 1983 Was published as EIA RS-364-31A B SP-3427-B May 2000 C SP-5150 November 2008 Added note to table 1. Added note to paragraph 4.2, 4.4 and 4.5. Added Annex A Revised paragraph 6.6 D SP-5210 General revision. Revised all paragraphs. Electronic Components Industry Association 2214 Rock Hill Road, Suite 265 * Herndon, VA 20170 * tel 571-323-0294 * fax 571-323-0245
