ECA EIA-520CAAD-A-1992 Detail Specification for Sensitive Switches Single Break Contacts Sub-Subminiature Size 7 A《微型尺寸7A单开路触点灵敏开关的详细规范》.pdf

1、a a a 4 I O (v v) I W 0 EIA 520CAAD-A 92 3234600 0556256 849 m - ANSIIEIA-52OAAD-A -1992 APPROVED January 20, 1992 EIA S P ECI FI CATI ON Detail Specification for Sensitive Switches, Single Break Contacts, Sub-subminiature Size 7 A E IA=520CAAD=A (RWiion Of EIA-52CAAD) FEBRUARY 1992 ELECTRONIC INDUS

2、TRIES ASSOCIATION ENGINEERING DEPARTMENT EIA 520CAAD-A 72 323L1bOO 0556257 785 W NOTICE EIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating jnterchangeability and improvement of

3、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 respect preclude any member or non- member of EIA from manufacturing or selling products not conforming to suc

4、h Standards and Publications, 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 t

5、o whether their adoption may involve patents on articles, materials, or processes. By such action, 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 EIA Specification is considered to ha

6、ve International Standardization 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 associa

7、ted with its use or all applicable 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. 2236-A formulated unde

8、r the cognizance of P-13.3 Subcommittee on Sensitive, Pushbutton Electronic components of assessed i quality in accordance with ! EIA-5200000 I i Outline Drawina - Maximum envelope l i i i i ! 1 t I i I I i I ! i P- u MAX 5.33 * -I- (.210) u .u u SEE FIGURES 1 THRU 3 FOR DETAIL DIMENSIONS letail Spe

9、cification Number EIA SSOCAAD-A Blank Detail Specification EIA 520CA00 Product Description - sensitive switches - single break contacts - sub-subminiature size - single pole - 7 A max. current rating - 250 Vac Max. voltage - logic level ratings - 7 types of actuators - 7 types of terminals rating El

10、ectrical Circuit momentary action Form C: double throw contacts Typical Construction housing - plastic actuator: pin plunger - plastic lever - metal Application/Assessment Level Electrical or electronic equipment I Information on the availability of components qualified to this specification is give

11、n in the Qualified Products List EIA 520CAAD-A 72 323YbOO 0556260 27T Rating Codes M s5 s7 G EIA-520CAAD-A Page 2 sea level 50,000 .feet . 125 V ac 250 V ac 28 v dc 28 v dc 60 Hz 60 Hz 7A - 7A 4A . 5A - A 5A 5A 7A 7A 1A -e- 1A - 1 .A 1 P 1.0 General data 1.1 Dimensional Parameters 1.1.1 Mounting Dim

12、ensions The mounting dimensions shall be in accordance with Figure 1 and are common to all switches covered by this detail specification. The configuration is optional within the specified dimensions, dimensions are in inches. The original 1.1.2 Actuator Dimensions The actuator dimensions shall be i

13、n accordance with Figure 1 for pin plunger actuators and Figure 2 for other integral actuator styles. 1.1.3 Terminal Dimensions The terminal dimensions shall be in accordance with Figure 3, The dashed lines represent the maximum dimensions within which the terminals must be located. The terminal loc

14、ation within the specified -envelope is optional, 1.2 Ratings and Characteristics 1.2.1 Electrical Ratings Electrical - power - logic level - low level See Table.1. 5 V, 10 mA for rating code G only 30 mV, 10 mA for rating code G only. TABLE I - ELECTRICAL RATING CODES EIA 520CAAD-A 92 m 3234600 055

15、6261 106 m EIA-520CAAD-A Page 3 1.2.2 Environmental Ratings Alt i tude Corrosive gases Fluid resistance FUUS res ist anc e Icing Moisture Resistance Random vibration Salt spray Sand and dust Shock - For Environmental Category “E“ - Actuator Type 1 - all other actuators - For Environmental Category “

16、F“ - Actuator Type 1 - all other actuators Temperature (operating) Therxa-i Shock Vihr t ic F - For Environmental Category “E“ - Actuator Type 1 - all other actuators - For Environmental Category IF“ - Actuator Type 1 - all other actuators 1.2.3 Mechanical Characteristics Effects of soldering Flamma

17、bility Irrmersion in solvents Low temperature operation Mass Operating characteristics S ea1 ing 50,000 feet. Not applicable. Not applicable. Applicable. Not applicable. Applicable. Not applicable. 96 hours. Not applicable. 100 GIs, half-sine. tested with the leaf or lever actuator in the free posit

18、ion, a mechanical stop shall be used to prevent the actuator from exceeding its maximum free posit ion. 50 GIs, half-sine, When 100 GIs, sawtooth. Notoapplicabge. -5!jOC to +850C, -55 C to +85 C. 20 Gs, 10-2000 Hz. 10 Gs, 10-500 Hz. When tested with the leaf or lever actuator in the free position, a

19、 mechanical stop shall be used ta prevent the actuator from exceeding its maximum free position. 10 Gs, 10-500 HZ, Not applicable. Applicable. See 2.3. Applicable. Applicable to Terminal Types 4 thru 7 only. Applicable, .O45 kg (0.1 lb) maximum. See Table V. Not applicable. EIA 520CAAD-A 92 3234600

20、05562b2 042 I- EIA-520CAAD-A Page 4 Y- ,: Strength of - actuator Type 1 (pin plunger) Types 2 and 3 (levers) - mounting bushing - screw mounting - termination Types 1 and 2 Types 3 thru 7 Solderability 1.2.4 Electrical charactristics . Actuator grounding Altitude voltage proof Capacitance Contact bo

21、unce Endurance - electrical - electrical rating code M - other electrical rating codes - lcgic level - Iow !.eve1 - mechanical Category E Category F Insulation resistance Over load Switch resistance - specified current - at rated load 4.5 kg (10 lb). Not applicable. 0.1 N-m (0.9 lb-in). e23 kg (0.5

22、lb). 4.0 kg (8.8 lb), Both Type I and II tests apply, 4.0 kg (8.8 lb). Applicable to solder terminals (Type 1, 2 and 4),only, Not applicable, 400 V rms at 50,000 ft, Not applicable. 6 ms max. for rating code G. 25,000 cycles at +85*C with no sticks or misses permitted, 25,000 cycles at atmospheric c

23、onditions with no sticks or misses permitted. 25,000 cycles . 25,000 cycles 1,000,000 cycles except for Electrical Rating Code S7 (7A) which shall be 250,000 cycles, 50,000 cycles. 1,000 megohms. Applicable, .O50 ohm maximum for electrical rating code G. 1% maximum of the impedance of the electrical

24、 load. Applicable to electrical rating codes S5 and S7. o Temperature rise 30 C maximum. Voltage proof 1000 V ac EIA 520CAAD-A 92 3234600 0556263 T EIA-520CAAD-A Page 5 1.3 Type Designation Switches covered by this detail specification shall be described by the following in the order shown: a) The n

25、umber for the detail specification. b) The type of contact arrangement. c) The style of the terminals per figure. C = double throw 1 = single turret solder terminals (Type 11 2 = double turret solder terminals (Type 2) 3 = quick connect terminals (Type 3) 4 = straight pin solder terminals (Type 4) 5

26、 = straight pin solder terminals (Type 5) h = straight pin solder terminals (Type hi 1- I - straight pin solder terminals (Type 7) d) The environmental category (See 1.2.1): E = Vibration - Type 1 actuator (pin plunger): 20G, 10-2000 Hz other actuators: 10G, 10-500 HZ Shock - Type 1 actuator (pin pl

27、unger):lOOG, half-sine other actuators: 50G, half-sine Electrical rating code S7 (7A):250,000 cycle; other electrical rating codes :1,000,000 cycles Mechanical endurance - F = Vibration - Type 1 actuator (pin plunger): 10G, 10-500 Hz other actuators: not applicable Shock - Type 1 actuator (pin plung

28、er):lOOC, sawtooth other actuators: not ap p 1 ic ab 1 e Mechanical endurance: 50,000 cycles e) The discrete switch identification per Table V, Example of Type Designation: EIA52OCAADClEOl EIA520CAAD 1 E 01 discrete switch identification environmental category terminal style contact arrangement numb

29、er for this detail specification EIA 520CAAD-A 92 = 3234600 0556264 915 -E EIA-520CAAD-A Page 6 1.4 Marking The marking of the switch and package shall be in accordance with the requirements of EIA 5200000, paragraph 2,5, The switches shall be marked with the following information: a) Terminal ident

30、ification as follows: NO for normally open terminal NC for normally closed terminal C for common terminal b) EIA part number cl Manufacturers name d) Date code per RS-476- 1.5 Ordering Information Orders for switches covered by this specification shall contain, as a minimum. the applicablepart numbe

31、r per paragraph 1.2 herein. 1.6 Certified Records of Released Lot - not required 1.7 Additional Information (not for inspection purposes) 1.7.1 Safety Considerations The user shall consider the suitability of the switch wiv-h regard to any safety requirements applicable to the equipment. 1.8 Increas

32、ed severities or requirements that are additional to those specified in the generic or sectional specifications 1.8.1 Effects of soldering Definition: The effects of coldering heat is a measure of.the ability of the switch to withstand short duration applications of high heat to solderable terminati

33、ons. Test Procedure: The test shall be performed in accordance with ANSIIEIA- 198-10E and is applicable to all terminals described herein except for the Terminal Type 3 (quick connect). The following details shall apply: (a) The severity of the test shall be 26OOC (500F) for 10 t 1 (b) After the,tes

34、t, the operating characteristics and insulation seconds msistance shall be measured. Criteria: After the test, the insulation resistance shall be 1000 megohms minimum and the operating characteristics shall be within the limits specified in Table V. EIA 520CAAD-A 92 = 3234600 05562b5 51 EIA-520CAAD-

35、A Page 7 1.9 Common Features PLASTIC PIN PLUNGER - ! TERMINALS PLASTIC COVER MOUNTING HOLES EIA 520CAAD-A 92 W 3234600 0556266 798 W EIA-520CAAD-A Page a I .60 rt0.25D,A .O63 f.010 -f 3.05 fa25 .i20 f.O1O DIA+ I 4,78f0,25 ,188 *.o10 I kl J I !- NOTES : (a) Dimensions are denoted as follows: 0.0 = mm

36、 0.00 = inches (b) Metric dimensions are based upon 1.0 inch = 25.4 millimeters. J ic) Unless otherwise noted, inch dimension tolerances are: One place (.O) = 2.030 Two place (.OO) = 2.015 Three place (.O001 = t.005 (d) Fineness of rounding (inch to millimeter) tolerances: Inch Tolerance +.O000 to +

37、.O0016 t.00016 to .+.O016 2.0016 to 2.016 +,O16 to 2.16 Derived Millimeter Tolerance Rounded to the nearest: 0.0001 (4 decimal places) 0.001 (3 decimal places) 0.01 . (2 decimal places) O. 1 (1 decimal place) (e) Mounting holes will accept pins or screws of 2.21 mm (.O87 inch) maximum diameter on 4.

38、78 2 0.05 mm (.188 k .O02 inch) centers, FIGURE 1 - MOUNTING DIMEISIONS AND TYPE 1 ACTUATOR (PIN PLUNGER) EIA-52QCAAD-A Page 9 I TYPE 2 - Straight Lever l Lever Length Dimens ion “A“ 12.95 .51 24.64 1 .97 i j I I ! I i I I I ! 8 TYPE 4 - Straight Leaf I NOTE: The maximum free position of the lever a

39、ctuators is equal to the sum of the maximum pretravel and the maximum operating point, See Table V. FIGURE 2 - ACTUATOR DIMENSIONS EIA 520CAAD-A 92 m 323L1600 0556268 560 m EIA-520CAAD-A Page 10 +- TYPE 1 - Single Turret Solder MAX TYPE 3 - Quick Connect k TYPE 2 - Double Turret Solder TYPE “A“ DIME

40、NSION 4 6.35 ,250 5 7.29 .287 (mm) (inch) 9.40 10.67 MAX 1,6/ ,063 6.351.250 i 1.1 / .437 . ,370 ,420 NOTE: 0.89/.035 pin diameter TYPE 4 - Straight Pin Solder NOTE: The dashed lines represent the maximum permissible envelope dimensions for the terminals. FIGURE 3 - TEBMIW DIHEMSIOHS - EIA 520CAAD-A

41、 72 = 3234600 0556267 4T7 = EIA-520CAAD-A Page 11 SECTIO TW - IISPECTIOLJ REQUIREHEHTS 2. Inspection Requirements 2.1 2.2 11 -.J Structurally similar devices The same insulation material shall be used in all switches covered by this specification. The same internal mechanical switching mechanism and

42、 internal electrical spacings, including the minimum contact gap, shall be used for all switches except for the removal of those piece parts that may not be required for normally open or normally closed electrical circuits. The base material for the electrical contacts shall be the same for all swit

43、ches having same electrical rating code. Preconditioning Switches shall not be preconditioned prior to inspection. Qualification approval inspection Qualification Approval inspection requirements shall be in accordance with Table II for multiple product approval. EIA 520CAAD-A 92 W 3234600 0556270 1

44、19 W of I test 1 and test designation (see Note A) ! (see Note A) EIA-520CAAD-A Page 12 ti criterion or acceptability (See Note B1 n sample description t TABLE II - QUALXPICATIOI PPRVU IHSPECTIOI TESTS 6 units i ill! Group 1 units - i11 Group 1 units i11 Group 1 units I i no sticksimisses . I 30C le

45、akage C 500uA see Table V ! GROUP O 4-1 Temperature rise 3-1 Voltage proof I 1000 Vac 1-6 Operating char. (nondestructive) I 1-1 Visual examination ! 1-5 Functional operation 1-6 Operating character. I 2-1 Switch resistance ! 6 V, 100 mA 2-5 Insulation resistancei 500 Vdc 3-1 Voltage proof : 1000 Va

46、c 3-2 Alt. voltage proof 4OO.V. 50,000 ft GROUP OA (nondescructve) 1-2 Dimensions 1 Fig. 1 thru 3 1-3 Gauging j Fig. 1. note e 1-4 Mass -_- I GROUP 1 I (destructive) 11-1 Solderability 6-4 Strength of teminals/ 4.0 kg (8.8 lb) 6-1 Strength of an,tuator i - type 1 4.5 kg (10 lb) - other types I .23 k

47、g r.5 lb) 9-1 Overload ! 50 cycles 8-1 Electrical endurance i 25,000 cycles 4-1 Temperature rise 3-1 Voltage proof ! 1000 Vac 1-6 Operating char, I IGROUP 1 i ( destruct ive 1 9-1 Overload I f 50 cycles all( units of i thru j I elec. rating code G only I units for Group C onlv ! 2 1 each of il thru

48、IS1 t i i units each of terminal Types 1, 2 and 7 2 1 units each of terminal i Types 1. 2. 3 and 7. 4 I units each of discrete. 1 nos, 01. 05, 11 and ir, i 1 CI 1 units i) O Performance requirements (See note Al : see Table V R 5 ,050 Q R 2 1000 MR leakage AC 500u.A , leakage AS 500uiA -_-_- within

49、limits within limits i 45 grams max. I !i damage /rio damage no damage t i units ?l. units 21 at +85O C i111 Group 1A units 1111 Group 1A units i111 Group 1A units ; -1 no damage no sticks/misses 2 30C leakage 5 500uA see Table L7 (dest mct ive 1 1-7 Contact bounce 10-6 Low temp, operation 7-1 Mechanical endurance -Rating code G -55 C cycles: see 1.2 I EIA 520CAAD-A 92 3234600 0556271 055 = EIA-520CAAD-A Page 13 I t Test number f Conditions Sample size, sample description, Performance I 1 of lb criterion