1、 EIA STANDARD TP-07C Contact Axial Concentricity Test Procedure for Electrical Connectors EIA/ECA-364-07C (Revision of EIA-364-07B) July 2007 ANSI/EIA-364-07C-2007(R2012) Approved: July 19, 2007 Reaffirmed: December 18, 2012 EIA/ECA-364-07C NOTICE EIA Engineering Standards and Publications are desig
2、ned to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of
3、 such Standards and Publications shall not in any respect preclude any member or nonmember of ECIA from manufacturing or selling products not conforming to such Standards and Publications, nor shall the existence of such Standards and Publications preclude their voluntary use by those other than ECI
4、A members, whether the standard is to be used either domestically or internationally. Standards and Publications are adopted by ECIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, ECIA does not assume any liability to any patent owner, nor does it
5、assume any obligation whatever to parties adopting the Standard or Publication. This EIA Standard is considered to have International Standardization implication, but the International Electrotechnical Commission activity has not progressed to the point where a valid comparison between the EIA Stand
6、ard and the IEC document can be made. This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the appli
7、cability of regulatory limitations before its use. (From Standards Proposal No. 5162 formulated under the cognizance of the CE-2.0 National Connector Standards Committee and reaffirmed per Standards Proposal 5252.02). Published by Electronic Components Industry Association 2012 Engineering Departmen
8、t 2214 Rock Hill Road, Suite 170 Herndon, VA 20170 PLEASE! DONT VIOLATE THE LAW! This document is copyrighted by the ECIA and may not be reproduced without permission. Organizations may obtain permission to reproduce a limited number of copies through entering into a license agreement. For informati
9、on, contact: IHS 15 Inverness Way East Englewood, CO 80112-5704 or call USA and Canada (1-800-854-7179), International (303-397-7956) i Clause 1 CONTENTS Introduction . Page11.1 Scope . 12 Test resources . 12.1 Equipment . 12.2 Calibration 13 Test specimen 13.1 Description 14 Test procedure . 25 Det
10、ails to be specified . 26 Test documentation . 2Figure 1 Typical axial concentricity (TIR) measurement . 3ii (This page left blank) EIA/ECA-364-07C Page 1 TEST PROCEDURE No. 07C CONTACT AXIAL CONCENTRICITY TEST PROCEDURE FOR ELECTRICAL CONNECTORS (From EIA Standards Proposal No. 5252.02, formulated
11、under the cognizance EIA CE-2.0 Committee on National Connector Standards, and previously published in EIA-364-07B.) 1 Introduction 1.1 Scope This standard establishes a test method to determine the straightness of contacts by measuring a total indicator reading (TIR) value. Axial concentricity can
12、be measured after crimping to determine axial deformation. 2 Test resources 2.1 Equipment 2.1.1 Ground precision chuck 2.1.2 Dial gauge indicator, 0.013 millimeter (0.0005 inch) increments with a 2.4 millimeter (0.09 inch) diameter tip, spring loaded. 2.1.3 Stand (for holding chuck and indicator in
13、proper position). 2.1.4 An equivalent optical gauge may be substituted for the dial indicator. 2.2 Calibration “Run out” of the chuck shall be less than 0.013 millimeter (0.0005 inch) when measured on a steel gauge pin (approximately 1.6 millimeters (0.06 inch) diameter) 13 millimeters (0.5 inch) aw
14、ay from the chuck face. 3 Test specimen 3.1 Description A test specimen shall consist of a contact and conductor crimped together with the specified tool. Contacts should be checked initially to determine conformance to the applicable drawings. EIA/ECA-364-07C Page 2 4 Test procedure 4.1 Chuck the c
15、ontact in the area shown in Figure 1. 4.2 Position the dial indicator to the measurement points shown in Figure 1. 4.3 Turn the chuck through 360 degrees and record the difference between the maximum and minimum value on each measurement point; this is the TIR. 5 Details to be specified The followin
16、g detail shall be specified in the referencing document: 5.1 Wire type and size and crimping tool to be used 5.2 Maximum allowable deformation (TIR) 5.3 The concentricity measurement point for socket contacts, if required 6 Test documentation Documentation shall contain the details specified in clau
17、se 5, with any exceptions, and the following: 6.1 Title of test 6.2 Sample description, including fixturing 6.3 Test equipment used, and date of last and next calibration 6.4 Test procedure 6.5 Values and observations 6.6 Name of operator and start/finish date(s) of test EIA/ECA-364-07C Page 3 Y 0.2
18、5 mm (0.01 inch) (Point A) Chucking area X 0.25 mm (0.01 inch) (Point B) Dial indicator probe placed here for measurement of TIR NOTES 1 For size 12 and larger pins X = 1 pin diameter Y = 1.27 millimeters (0.05 inch) 2 For pins smaller than size 12 X = 2 pin diameters Y = the distance from the rear
19、of the wire barrel to the beginning of the crimp indent 3 For socket contacts Unless otherwise specified in the referencing document, the concentricity at point B is not required. Figure 1 - Typical axial concentricity (TIR) measurement ECIA Document Improvement Proposal If in the review or use of t
20、his document, a potential change is made evident for safety, health or technical reasons, please fill in the appropriate information below and mail or FAX to: Electronic Components Industry Association EIA Standards & Technology Department 2214 Rock Hill Rd., Suite 170 Herndon, VA 20170 FAX: (571-32
21、3-0245) Document No.: Document Title: Submitters Name: Telephone No.: FAX No.: e-mail: Address: Urgency of Change: Immediate: At next revision: Problem Area: a. Clause Number and /or Drawing: b. Recommended Changes: c. Reason/Rationale for Recommendation: Additional Remarks: Signature: Date: FOR ECIA USE ONLY Responsible Committee: Chairman: Date comments forwarded to Committee Chairman: Electronic Components Industry Association 2214 Rock Hill Road, Suite 170 * Herndon, VA 20170 * tel 571-323-0294 * fax 571-323-0245 www.eciaonline.org
