1、 EIA 520AAAF 88 m 3234b00 0073334 3 m r- L .* ANW EIA- 520AAAF-1988 APPROVED: September 15, 1988 EIA S PE C I F I CAT I ON Detail Specification for Pushbutton Switches, 19 rnrn x 29 rnm, 10 Ampere EIA-520AAAF DECEMBER 1988 ELECTRONIC INDUSTRIES ASSOCIATION ENGINEERING DEPARTMENT NOTICE EIA Engineer
2、ing Standards and Publications are designed to serve the public interest through eliminating m8sunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper produ
3、ct 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 Publications, nor shall the existence of such Standards and Publications preclude the
4、ir 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 or not their adoption may involve patents on articles, materials, or processes. By such act
5、ion, EIA 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 Specification does not purport %o address all safety problems associated with its use or all applicable regulatory requirements. It
6、 is the responsibility of the user sf this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (From EIA Standards Proposal No. 2Q05, formulated under the cognizance of the EIA P-13.3 Subcommittee on Non-Sensitive
7、 Pushbutton and Keyboard Switches.) Copyright 1989 Published by ELECTRONIC INDUSTRIES ASSOCIATION Engineering Department 1722 Eye Street, N.W. Washington, D.C. 20006 All rights reserved Printed in U.S.A. PRICE: $12.00 EIA 520AAAF B8 m 3234600 0073336 7 m rJational Standards Qrganiratien Electronic I
8、ndustr ies Asso 3up A (lot-by-lot) Visual examination Major Minor Functional operation Voltage proof Operating characteristics PERIODIC TESTS Gwwp X (every 6 months) Insulation resistance Solderability Strength of terminations Strength of actuator Electrical endurance +. L2rsions GROUP B (every 36 m
9、onths) Overload Electrical endurance Temperature rise Voltage proof GROUP C (every 36 months) Thermal shock Vibration Shock Humidity Operating Characteristics Voltage Proof 1-1 1-5 3-1 1-6 1-2 1-4 2-5 11-1 6-4 6-1 8-1 9-1 8-1 4-1 3-1 10-2 5-3 5-2 10-1 1-6 3-1 ND ND ND ND TEST SAMPLES II 1.0 4.0 II 1
10、 o II 1. o II 2.5 O 2 O 4 O 4 O - n.a. n.a. n.a. - - 4 O O 4 O 4 O 4 O 4 O O 4 O n.a. 4 4 O 4 O 4 O - - EIA 520AAAF EIA- 5 20AAAF Page 14 II- GROUP E (every 36 months) Mechanical endurance *rating Characteristics Group F (every 36 months) Salt spray - Group H (every 36 months) FlV Group K (every 36
11、 months) Chrmaticity Transmi ttancy Group M (every 36 months) Stray lights BB 3234600 0073329 5 = msr m. 7-1 12-1 10-5 16 18-1 18-2 18-5 ACSEESME“ &KTELS . msJ! SAMPLES t.S. t.d. s.d. O 4 O 4 O Dl - n.a. n.a. n.a. - n.a. 2 O “ES: See Table II. TABLE IV: MAJOR CHARACTERISTICS FOR VISUAL EXAMINATION P
12、roper Assembly Physical Damage Proper Attachment of Nountbg Clips Proper Termination Button Retainer Tab Damage Base Module Properly Sealed and Epoxied O EIA 520AAAF 88 3234600 0073330 1 EIA STANDARD AND SPECIFICATION NUMBERING STANDARD A document that estab1,shes engineering and technical requireme
13、nts for processes, procedures, practices and methods that have been decreed by authority or adopted by consensus. Standards 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 number
14、ing system as follows: EIA-123 Original Standard EIA-123-1 Addendum to the Original Standard EIA-123-A First Revision of original Standard incorporating all Addenda SPECIFICATION A document prepared specifically to facilitate procurement which clearly and accurately describes the essential technical
15、 requirements for purchased material. Procedures necessary to determine that the requirements for the purchased material covered by the specification have been met shall also be referenced or included. EIA Specifications use the following system: EIA123 Standard Prefix for all Numbers Standard or Ge
16、neric Specification Indicator Sectional Specification Designator A - A - Blank Detail Specification Designator Detail Specification Designator EIA 1230000 is a Generic Specification EIA 123A000 is a Sectional Specification EIA 123AA00 is a Blank Detail Specification EIA 123AAAA is a Detail Specification EIA 12300AA is a Detail Specification for which no Sectional or Blank Detail Specification was issued NOTES 1. Some older specifications may not have been converted to this numbering system. 2. See EP-11, “Guide for the Preparation of Specifications Using IECQ-System Format,“ for more detail.
