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1、EIA 520AAAB-A 91 = 323L1600 0078240 3 W - I U I ANSI/ EIA- 52 O AAAB- A- 1991 APPROVED: September 19, i991 EIA SPECIFICATION Detail Specification for Nonsensitive Pushbutton Switch Momentary Contact EIA-520AAAB-A (Revision of EIA-BPOAAAB) - OCTOBER 1991 ELECTRONIC INDUSTRIES ASSOCIATION ENGINEERING
2、DEPARTMENT ADDrOVed For Use in the NECQ the latest issue of EIA 520A000, Sectional Specification for Pushbutton Switches of Certified Quality; and the latest issue of EIA 5200000, Generic Specification, Special Use Electromechanical Switches of Certified Quaiity. 1 . GENERAL 1.1 SCOPE The family of
3、momentary contact, non-sensitive pushbutton switches covered by this detail specification: a) mount i n a panel hole with a clearance diameter for a 1/4-32UNEF-2A thread. b) have a maximum rated voltage of 115 Vac. c) have a maximum rated current of 250 mA. 1 . 2 TYPE DESIGNATION Switches covered by
4、 this detail specification shall be identified as follows and in the order shown: a) the number of t h i s detail specification. b) discrete switch identification per Table IV. EXAMPLE: E I A 5 2 0 - OlQ Discrete Switch identification per Table IV Number of this detail specification c Copyright Elec
5、tronic Components, Assemblies * Temperature rise - Not Applicable 185 milliohms initially, 425 milliohms after test for -028 and -029; maximum. * Voltage proof - 1000 Vac 2 . INSPECLION REQUIREMEWS 2.1 Qualification Approval inspection requirements shall be in accordance with Table I herein. Copyrig
6、ht Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:34:42 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A 520AAAB-A 91 W 3234600 0078248
7、8 m B EIA/520AAAB-A t Page 6 2.2 Quality Conformance inspection requirements are prescribed in Table II herein for lot- by-lot inspections, and in Table III herein for periodic inspections. For V i s u a l Examination, the classification of major and minor defects shall be as follows: O Major charac
8、teristics for visual examination: Proper assembly Proper termination Physical damage 2.3 Endurance tests shaii be run with the loads and durations shown below. No more than one (1) stick or miss per 1000 cycles is permitted. Test Time B!slaL Load No. Qcle Electrical Endurance 8-1 115 Vac, 250 mA 89S
9、ee Logic Level Endurance 8-4 5 Vdc, 1OmA Table Low Level Endurance 8-5 30 mVdc, 10 mA IV 2.19 Capacitance APPLICATION NOTE: Long leads of -028 and -029 will influence capacitance measurement, and should be taken into consideration by user. Copyright Electronic Components, Assemblies & Materials Asso
10、ciation Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:34:42 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A 520AAAB-A 71 m 3234600 O078247 T m EM-520AAAB-A Page 7 FIGURE- i CIRCUIT DIAGRAM PAR
11、T -001. -002 CIRCUIT DIAGRAM N . 0 . - N . C . 7 C. PART -005, -006 CINGLE POLE WUBLE THROW MAKE BEFORE BREAK BOTTOW VIEW TYPICAL ff - 0 0 1 T r n -m. FIGURE 2 CIRCUIT DIAGRAM PART -003, -004 C. !:E: SINGLE WLE CKBlE T H n m BREAK BEFORE W E CIRCUIT DIAGRAM N.O.0 PART -007, -008 3 CIRCUIT DIAGRAM PA
12、RT -009 , -010 N.C. 4 N . D . C. - CIRCUIT DIAGRAM PART -01 I , -012 Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:34:42 MDTNo reproduction or networking pe
13、rmitted without license from IHS -,-,- E I A 520AAAB-A 91 W 3234600 O078250 b W E m / 5 2 0 m - A Page 8 , . FIGURE 4 t I1 CIRCUIT DIAGRAH N.C. C. - i h N : O . C. F N.C. k N . 0 . WUBLE POLE W L E THROW BREAK BEFORE HAKE CIRCUIT DIAGRAM N . 0 . - 9 i N.O.4 DWBLE POLE DWBLE Twou WAKE BEFORE BREAK PA
14、RT PART -020, -022 I -02 I -023 BOTTCM VIEW TYPICAL FU? -020 TW -027 FIGURE 5 CIRCUIT DIAGRAM c. 7N:O. - N.C. h N . 0 . N.C. PART -024, -025 C. Y WLBLE WLE MU& T R I W BREAK BEFORE W E CIRCUIT DIAGRAM *E:= i PART -026, -027 N . 0 . - AQnsc FLATS OOUBLE P a -LE THROW fflxAGm. MAKE BEFORE BREAK , Copy
15、right Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:34:42 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A 520AAAB-A 9% m 3234b00 00782
16、53 8 m 9 C FIGURE 6 M X . “ T I N O Nur NOTES, APPLICABLE TO ALL FIGURES! 1 . DIMENSIONS ARE DENOTED AS FOLLOWS, 0.0 = MM EIA-520AAAB-A Page 9 CIRCUIT DIAGRAM N.C. C. - N.C. L . N . O . PART -028, -029 Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license
17、with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:34:42 MDTNo reproduction or networking permitted without license from IHS -,-,- EIA/52OAAAB-A Page 10 Test Method & Grow Grom A Visual Examination Dimensions Functional Operation Switch Resistance Voltage Pro
18、of Operating Characteristics Capacitance Solderability Strength of Terminals Strength of Actuator Electrical Endurance Operating Characteristics Switch Resistance Insulation Resistance Voltage Proof Seal Grow C Logic Level Endurance Switch Resistance Operating Characteristics GrouD D Low Level Endur
19、ance Switch Resistance Operating Characteristics Grow E Thermal Shock Vibration Shock Operating Characteristics Switch Resistance Insulation Resistance Voltage Proof Humidity Salt Spray E I A 520AAAB-A 91 = 3234600 0078252 T i TABLE 1 T QUALIFICATION APPROVAL INSPECION TEST Test No. 1-1 1-2 1-5 2-2
20、3-1 1-6 17-1 11-2 6-4 6-1 See 23 1-6 2-2 2-5 3-1 13-1 See 2 . 3 2-2 1 6 See 23 2-1 1 6 10-2 5-3 5-2 10-1 1-6 2-2 2-5 3-1 10-4 M/WS M M M M M M M M M M M M M M M w s M M M M M M M M M M M M M M M D/ND ND ND ND ND ND ND ND D D D D ND ND ND ND ND D ND ND D ND ND D D D D ND ND ND ND D - t.d 96 U. 25 ea
21、( 1 ) 5 ea. (i) 1 5 ea. ( 1 ) 5 ea. ( 1 ) 5 ea. (i) 1 5 ea. ( 1 ) Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:34:42 MDTNo reproduction or networking permi
22、tted without license from IHS -,-,- E I A 520AAAB-A 91 3234600 0078253 1 - L KEY: M = mandatory test WS = when specified test D = destructive test EIA-520AAAB-A Page 11 ND = nondestructive test t.s. = minimum quantity of test specimens t.d. = maximum permissible number of defective units per test g.
23、d. = maximum permissible number of defective units per group NOTES: (1) = Twenty-five of each switch type requiring qualification s h d be used in Group A. Five of each switch type requiring qualification shail be used in Groups B,C,D,E,F. Copyright Electronic Components, Assemblies & Materials Asso
24、ciation Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:34:42 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A 520AAAB-A 91 E 3234600 O078254 3 W EIA/520AAAB-A Page 12 TABLE4 LOT-BY-LOT INSPECTIO
25、N TESTS Test Methods and Test Groups (Test Frequency) Acceptance A (Lot-By-Lot) Group A (Lot-Bv Lot) Visual Examination Major Minor Functional Operation Switch Resistance Periodic Tests Grow B (every 6 months) Assessment Levels Level T“ (3) Test No. D/ND - IL AOL 1-1 ND I 1 . 5 1-5 2-2 ND II ND 53 T
26、able K I PERIODIC INSPECTI0 N TESTS Dimensions Operating Characteristics Switch Resistance Insulation Resistance Voltage Proof Panel Sealing (when specified) Solderability Grow C (e vem 36 months) Requalification per Table I 1-2 1-6 2-2 2-5 3-1 13-1 11-2 ND ND ND ND ND ND D Level C (3) t.s. (4) t.d
27、Ld 2 2 10 10 10 10 10 (1) 4 . 0 1 . 0 1 . 5 Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:34:42 MDTNo reproduction or networking permitted without license f
28、rom IHS -,-,- E I A 520AAAB-A 91 3234b00 O078255 5 W z KEY D ND t.s. t.d. g.d. na. NOTES: (1) = (3) = (4) = EM-520AAAB-A Page 13 = destructive test = nondestructive test = = = = minimum number of test samples maximum permissible defective units per test maximum permissible defective units per group
29、test is not applicable if no changes have been made to the design or manufacturing processes. The resilient and hermetic sed tests may be performed as in-process inspections and the acceptance inspection may then be limited to the watertight test for gross leaks. The quantity of test specimens shall
30、 be the same as required for qualification approval tests. Assessment Level C is the minimum acceptable level. Additional, higher levels can be developed as required for specific Detail Specifications. Number of samples required for each qualified switch type. Copyright Electronic Components, Assemb
31、lies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:34:42 MDTNo reproduction or networking permitted without license from IHS -,-,- EIA STANDARD AND SPECIFICATION NUMBERING Standard or Generic Specific
32、ation Standard Prefix for all Numbers Sectional Specification Designator Blank Detail Specification Designator “T STANDARD P k A document that establishes engineering and technical requirements for processes, procedures, practices and methods that have been decreed by authority or adopted by consens
33、us. 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 numbering system as follows: EIA-I 23 Original Standard EIA-123-1 Addendum to Original Standard EIA-123-A First Re
34、vision of original 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
35、 material covered by the specification have been met shall also be referenced or included. o i EIA 123oooO EIA 123AOOO EIA 123AAOO EIA 123AAAA EIA 12300AA is a Generic Specification is a Sectional Specification is a Blank Detail Specification is a Detail Specification is a Detail Specification for w
36、hich no Sectional or Blank Detail Specification was issued. NOTES: 1. Some older specifications may not have been converted to this numbering system. Format,“ for more detail. 2. See EP-11 “Guide for the Preparation of Specification Using IECQ-System c Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:34:42 MDTNo reproduction or networking permitted without license from IHS -,-,-