1、EIA 520EAAD 90 323LlbOO 0073582 b EIA-520EAAD ANSI/ EIA-520EAAD-1990 APPROVED: September 28, 1990 EIA SPECIFICATION Detail Specification for Dual-In-Line Package (DIP) Switches, Raised and Recessed Slide Actuated OCTOBER 1990 ELECTRONIC IN DUSTRI ES ASSOCIATION ENGINEERING DEPARTMENT Approved kor Us
2、e In The NECQ Svstem EIA 520EAAD 90 3234600 0073583 8 m NOTICE EIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting t
3、he 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 respect preclude any member or non-member of EIA from manufacturing or selling products not conforming to such Standards and Publicatio
4、ns, nor shall the existence of such Standards and Publications preclude their voluntary use by those other than EIA members, whether the standard is to be used either domestically or internationally. Recommended Standards and Publications are adopted by EIA without regard to whether their adoption m
5、ay involve patents on articles, materials, or processes. By such action, EL4 does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Recommended Standard or Publication. This EIA Specification is considered to have International Standardi
6、zation implication, but the International Electrotechnical Commission activity has not progressed to the point where a valid comparison between the EIA Specification and the IEC document can be made. This Specification does not purport to address all safety problems associated with its use or all ap
7、plicable regulatory requirements. It is the responsibility of the user of this Specification to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 2286-A formulated under the cognizance of the EI
8、A P-13.4 Subcommittee on In-Line and Miscellaneous Switches.) Published by ELECTRONIC INDUSTRIES ASSOCIATiON Engineering Department 2001 Pennsylvania Avenue N.W. Washington, D.C. 20006 PRICE: Please refer to the current Catalog of EU RAISED AND RECESSED SLIDE ACTUATED Introduction This Detail Specif
9、ication was prepared by EIA Working Group P-13.4 on In-Line and Miscellaneous Switches. The complete requirements for the switches described herein shall consist of this Detail Specification, the latest issue of EIA 520E000, “Sectional Specification for In-line Switches of Certified Quality,“ and th
10、e latest issue of EIA5200000, “Generic Specification for Special-use Electrochemical Switches of Certified Quality . 1.0 1.1 e 1.2 2.0 2.1 e SECTION ONE - SCOPE AND OBJECT Scope The Dual In-line Machine Insertable Switches of certified quality covered by this Detail Specification: 1.1.1 Have maximum
11、 enclosure dimensions of 33.02 mm (1.300 inch) long, 10.16 (0.400) wide and 14.06 (0.554) high. 1.1.2 Have a maximum rated voltage of 50 Vdc. 1.1.3 Have a.maximum rated current of 100 mA. 1.1.4 Have slide actuators that are raised above, or recessed below, the top surface of the switch. 1.1.5 Are se
12、aled against the entrance of soldering flux and cleaning solutions during the process of assembly to circuit boards. Object The object of this Detail Specification is to provide all information required for the identification, quality assessment, and certification of these switches. The information,
13、 contained herein or by reference, is complete and sufficient for inspection purposes. SECTION TWO - GENERAL The related documents, units, symbols, terminology and markings are prescribed in Section Two of Sectional Specification EIA 520E000, and General Speci- fication EIA 5200000, and the followin
14、g additional requirements: 2.5.1 Switches shall be marked so as to identify the state of the contacts with respect to the actuation position (e.g., “ON“ on appropriate side, a round dot on the closed contact side, etc.). EIA 520EAAD 90 3234600 007358b 3 EIA-5 20EAAD Page 2 2.5.2 Part Number: Switche
15、s shall be identified as follows: ELA XxxXxXX - XXX Type number from Table IV This Detail Specification number TABLE IV 3.0 SECTION THREE - QUALITY ASSESSMENT PROCEDURES 3.1 The quality assessment procedures are prescribed in Section Three or Sectional Specification EIA 520E000, and are supplemented
16、 by the following information: 3.1.1 Qualification Inspection Tests: The qualification tests are prescribed in Table I herein for the qualification of the entire subfamily of switches covered by this Detail Specification. Qualification switches must have 8 poles. 3.4.6 Lot-By-Lot Inspection Tests: T
17、he lot-by-lot inspection tests are prescribed in Table II herein. 3.4.7 Periodic Inspection Tests: The periodic inspection tests are prescribed in Table III herein. 4.0 SECTION FOUR - TEST METHODS AM) REQUIREMENTS 4.1 General The test methods and requirements are prescribed in Section Four of Generi
18、c Specification EIA 5200000, Section Four of Sectional Specification EIA 520E000, and are supplemented by the following information: 4.1.6 Switches with tape top seals shall be supplied with contacts in the closed position and seals in place for Group A, the solderability test of Group B, and the ma
19、chine soldering test of Group C of Qualification Test Table I. These seais may be removed for all other qualification tests. Insulation resistance and voltage proof measuremenuin Group A only will be made between adjacent poles (the closed circuit prevents taking these readings across open contacts)
20、. 4 4.5.1 EIA SZ-QEAAD 90. m 3234b00 0073587 5 m EIA-52OEAAD Page 3 Switch Resistance Contact resistance is to be measured between the two terminals associated with each switch pole, and shall not exceed 50 milliohms initially and in Qualification Groups A and C, and 100 milliohms in Qualification G
21、roups B, D, E and Periodic Test Group B. 4.5.2. 4.6.1 4.8.1 4.9.1 4.11.1 4.19 4.24 Insulation Resistance Insulation resistance shall be measured at 100 5 5 Vdc, and at stan- dard atmospheric conditions. Insulation resistance shall not be less than 1000 megohms. Voltage Proof Voltage proof measuremen
22、ts shall be made with an applied voltage of 500 Vac (rms). Maximum allowable leakage current is 500 microamperes. The switch shall withstand the test voltage without sustained arcing, breakdown, or damage to insulation. Vibration Vibration testing shall be in accordance with EIA 186-8 Type III. Stre
23、ngth of Terminations Strength of terminations shall be tested in accordance with EIA-186-6 with a 1.1 pound load on a minimum of three randomly selected terminals on each specimen. Electrical Endurance The electrical endurance test shall be run with one-half of the specimens tested in accordance wit
24、h Test 8-4 (logic load) and one-half of the specimens tested in accordance with Test 8-5 (low level load). The number of cycles shall be 2000, and no sticks or misses are allowed. Capacitance The maximum allowable capacitance shall be 5 picofarads. Machine Soldering The machine soldering test shall
25、be run in accordance with EIA-448-2 Method 16 and with Method A fluxing (touching body), a soldering time of no less than four seconds, and cleaning by immersion and spray (all four solutions in each case). After the test, there shall be good solder connections, no externally visible indication of l
26、eakage, contact resistance shall be in accordance with 4.5.1, and insulation resistance shall be in accordance with 4.5.2, and all marking shall be readable. EIA 520EAAD 90 3234b00 0073588 7 W EIA-520EAAD Page 4 TABLE I: QUALIFICATION APPROVAL INSPECTION TESTS Test Method & Group Group A Visual Exam
27、ination Dimensions Mass Switch Resistance Insulation Resistance Voltage Proof Group B Solderability Strength of Terminations Electrical Endurance Switch Resistance Voltage Proof Group C Machine Soldering Visual Examination Switch Resistance Insulation Resistance Group D Thermal Shock Vibration Visua
28、l Examination Shock Visual Examination Switch Resistance Voltage Proof Group D Capacitance Moisture Resistance Switch Resistance Voltage Proof Test No. 1- 1 1-2 1-4 2- 1 2-5 3- 1 11-1 See 4.9 See 4.11.1 2- 1 3- 1 See 4.24 1-1 2- 1 2-5 10-2 5- 3 1-1 5- 2 1-1 2- 1 3- 1 17-1 10-1 2- 1 3- 1 M/WS M M M M
29、 M M M - M M M M M M M M M M M M M M M M M M M M M M M M D /ND ND ND ND ND ND hi D D D ND ND D ND ND ND D D ND D ND ND ND ND D ND ND t.s. - Al 1 (1) (1) All All All 10 24 10 - t.d g.d O O O O O O O 1 1 1 1 1 1 O O 10 1 1 1 1 1 EIA 520EAAD 90 W 323qbOO 0073589 9 W Solderability I Voltage Proof EIA-52
30、0EAAD Page 5 TABLE II: LOT-BY-LOT INSPECTION TESTS Assessment Level C - IL AqL Test No. D/ND - Test Method & GrOUD Group A (Lot-By Lot) Visual Examination Maj or Minor Switch Res is tance Insulation Resistance Voltage Proof 1- 1 ND 2- 1 ND II 1% 2-5 ND 3- 1 ND Table III : PERIODIC INSPECTION TESTS t
31、 .d. 8.d. - Test No. D/ND t.S. - 20 1 Test Method & Group Group B (every 12 months) 11-1 D See 4.9 D See 4.11.1 D 2- 1 ND 3- 1 ND Strength of Terminations Switch Resistance 0 . Electrical Endurance Group C (every 36 months) Requalification - Table I D EIA 520EAAD 90 3234600 O073590 5 EIA-520EAAD Pag
32、e 6 KEY: M= mandatory test D= destructive test ND= nondestructive test t.s. = mnimum quantity of test specimens t.d. = maximum permissible number defective units per test g.d. = maximum permissible number of defective units per group NOTES : (1) = A minimum of 2 pieces of each configuration covered
33、by the Detail Specification. EIA 520EAAD 90 m 3234600 0073593 7 m EIA STANDARD AND SPECIFICATION NUMBERING * STANDARD A document that establishes engineering and technical requirements for processes, procedures, practices and methods that have been decreed by authority or adopted by consensus. Stand
34、ards may also be established for selection, application and design criteria for material. Standards and other documents not in the specification format use only the EIA basic numbering system as follows: EIA-123 Original Standard EIA-123-1 Addendum to Original Standard EIA-I 23-A First Revision of o
35、riginal Standard incorporating all Addenda SPECIFICATION A document prepared specifically to facilitate procurement which clearly and accurately describes the essential technical requirements for purchased material. Procedures necessary to determine that the requirements for the purchased material c
36、overed by the specification have been met shall also be referenced or included. EIA Specifications use the following system: E,IA I i 3 i7l Standard Prefix for all Numbers Standard or Generic Specification Sectional Specification Designator Blank Detail Specification Designator A Detail Specificatio
37、n Designator A - EIA 1230000 EIA 123A000 EIA 123AAOO EIA 123W EIA 123OOAA is a Generic Specification is a Sectional Specification is a Blank Detail Specification is a Detail Specification is a Detail Specification for which no Sectional or Blank Detail Specification was issued. NOTES: I. Some older specifications may not have been converted to this numbering system. 2. See EP-11 “Guide for the Preparation of Specification Using IECQ-System Format,“ for more detail.
