1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro
2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.QUESTIONS REGARDING THIS DOCUMENT: (724) 772-8512 FAX: (724) 776-0243TO PLACE A DOCUMENT
3、 ORDER; (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS http:/www.sae.orgCopyright 1994 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.SURFACEVEHICLE400 Commonwealth Drive, Warrendale, PA 15096-0001STANDARDSubmitted for recognition as an American National StandardJ1744I
4、SSUEDJUN94Issued 1994-06280 RELAY FOOTPRINTThis SAE Standard is written as an optional equivalent to ISO 7588 and ISO 7880.ForewordThis Document has not changed other than to put it into the new SAE Technical Standards BoardFormat.1. ScopeThis SAE Standard covers a terminal footprint for mini and mi
5、cro relays used in surface vehicleelectrical systems.1.1 PurposeThis proposal specifies the main dimensions and terminal allocation for a family of relaysincorporating a dual in-line pattern of 280 series (2.8 mm) terminals to be used in surface vehicle applications.2. References2.1 Applicable Publi
6、cationsThe following publications form a part of this specification to the extent specifiedherein.2.1.1 ISO PUBLICATIONSAvailable from ANSI, 11 West 42nd Street, New York, NY 10036-8002.ISO 7588Road vehiclesRelays and flashersMounting and positioning dimensions of male tabs andsocket apertures for r
7、elays and flashersISO 7880Road vehiclesRelaysArrangement and functional attribution of relay terminals2.1.2 RELAY ENGINEERS HANDBOOKAvailable from National Association of Relay Manufacturers (NARM),Milwaukee, WI 53217.2.2 Related PublicationsThe following publications are provided for information pu
8、rposes only and are not arequired part of this document.2.2.1 SAE PUBLICATIONAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.TSB 003Rules for SAE Use of SI (Metric) Units2.2.2 ANSI PUBLICATIONAvailable from ANSI, 11 West 42nd Street, New York, NY 10036-8002.ANSI Y14.5M-1982Dime
9、nsioning and TolerancingSAE J1744 Issued JUN94-2-3. DefinitionsThe following definitions are in accordance with the “Relay Engineers Handbook,“ 1991.3.1 Break ContactA contact combination which is closed when the armature is in its unoperated position. Alsoknown as Form B.3.2 Make ContactA contact c
10、ombination that is open when the armature is in its unoperated position. Alsoknown as Form A.3.3 Changeover ContactA combination of two contact circuits including three contact members, one of thembeing common to the two contact circuits. When one of these is open, the other is closed and vice versa
11、. Alsoknown as Form C.4. 280 Relay Footprint4.1 Mounting and Positioning Dimensions of Male Tabs and Socket AperturesAll corresponding dimen-sions are also applicable if less than six tabs are fitted. The dimensions in Figure 1 refer to the positioningzones at the root of the male tabs and to the ap
12、ertures at the entering plane.All dimensions are in millimeters (SI metric, not to scale).FIGURE 1MOUNTING AND POSITIONING DIMENSIONSOF MALE TABS AND SOCKET APERTURESSAE J1744 Issued JUN94-3-4.2 Arrangement and Functional Attribution of Relay TerminalsNOTE 1Other terminal designations may be used if
13、 the arrangement and attribution of functions of theterminals comply with the specifications.NOTE 2Terminal positions are shown from the relay terminal connection side.NOTE 3If polarized suppression is utilized, preferred positive (+) terminal is terminal 1.FIGURE 2ARRANGEMENT AND FUNCTIONAL ATTRIBU
14、TION OF RELAY TERMINALSSAE J1744 Issued JUN94-4-4.3 Overall Package Dimensions and Other RequirementsConfigurations other than rectangular arepermitted, provided they lie within the specified area as shown in Figure 3.All dimensions are in millimeters (SI metric, not to scale).FIGURE 3OVERALL PACKAG
15、E DIMENSIONS AND OTHER REQUIREMENTS5. Notes5.1 Key Words280, Footprint, Micro, Mini, Relay, Tab, Terminal.PREPARED BY THE SAE 280 FOOTPRINT TASK FORCESAE J1744 Issued JUN94RationaleThis standard was created as an alternate to the existing ISO 7880 and ISO 7588 specification forrelay footprints. The
16、280 footprint will alow flexibility in future electrical systems that is not possible withthe current ISO footprint. This document has been prepared in the ANSI format and utilizes GD&Ttolerancing techniques. The 280 footprint is not intended to be a replacement for the ISO footprint, butrather an o
17、ptional footprint for electrical systems which require maximum flexibility in wire routingtechniques and device placement.Relationship of SAE Standard to ISO StandardThis standard is written as an optional equivalent to ISO7880 and ISO 7588.ApplicationThis SAE Standard covers a terminal footprint fo
18、r mini and micro relays used in surface vehicleelectrical systems.Reference SectionISO 7588Road vehiclesRelays and flashersMounting and positioning dimensions of male tabsand socket apertures for relays and flashersISO 7880Road vehiclesRelaysArrangement and functional attribution of relay terminalsRelay Engineers HandbookTSB 003Rules for SAE Use of SI (Metric) UnitsANSI Y14.5M-1982Dimensioning and TolerancingDeveloped by the SAE 280 Footprint Task Force
