EIA-364-20A

锯齿冲击脉冲终点峰值公差
速度的变化量：Vi= 0.5AD X10-3 (P 为加速度的峰值，D 为脉冲持续时间)的±10%以内。 最大峰值脉冲振幅±15%以内，峰值加速度±15%以内。
中文名称： 后峰锯齿冲击脉冲 英文名称： final peak sawtooth shock pulse 定义： 时间历程曲线为三角形的，即运动量 由零线性地增加到最大值然后在一瞬间降落 到零的理想冲击脉冲。
8、瞬断，及连接方法：
EIA-364-46：电子连接器的微秒间断试验程 序，连接器和插座。 1、监控设备电压电流 DC5V 100MA 电源调节响应时间应0.1微 秒或更好。 2、连接每个监控串联电路不超过50个连接 点，且初始电阻小于3 Ω.
❖EIA-364-87：电子连接器的纳秒事件检测， 连接器和插座。
1、测试的目的：
❖1、范围：描述一种电连接器机械冲击试验 的标准方法，以便评估电连接器及其组件 耐机械冲击的性能。
❖ 2、目的：进行本试验是为了确定连接器及 其组件当遭到诸如粗鲁搬运、运输或军用 时可能出现的冲击的适应性。
2、机械冲击的概念
定义：能激起系统瞬态扰动的力、位置、速 度和加速度的突然变化。
1.2 目的: 进行本试验是为了确定连接器及其组件在 寿命期间可能遭遇在主要频段或随机振动 频段范围内及其幅度上受振动的影响情况。
5、振动的概念
机械振动是物体在一定位置附近所作的周
期性往复的运动。
机械振动系统，就是指围绕其静平衡位置 作来回往复运动的机械系统，单摆就是一 种简单的机械振动系统。
振动测试的基本参数
测试方向： ±（X、Y、Z）
冲击波形： 半正弦 锯齿波
冲击次数： 每轴向的次数
机械 冲击

EIA STANDARD EIA-364-27B 第1 页共7 页电子工业协会标准TP-27B电连接器的机械冲击(规定脉冲)试验程序EIA-364-27B（依据EIA-364-27A修订）1996年4月17日颁布1 目的描述一种电连接器机械冲击试验的标准方法，以便评估电连接器及其组件耐机械冲击的性能。

2 概述进行本试验是为了确定连接器及其组件当遭到诸如粗鲁搬运、运输或军用时可能出现的冲击的适应性。

测试系统的频率响应亦以容差规定。

3 定义3.1 轴图1给出了轴的图示定义，如果使用不同于图1所示的轴，则在相关参考文件中应在试验装置进行要求或对轴进行定义。

3.1.1 X轴与样品纵向长度一致的方向3.1.2 Y轴与样品纵向相垂直的方向(横向)3.1.3 Z轴与测试装置的固定面(与试验桌的桌面接触的面)垂直的方向图1---安装轴向定义4 样品制备4.1 除非另有规定，样品应按规定连接。

4.2 样品应按规定安装为了将不平衡负载的影响减至最小，应尽量将样品在试验平台上的试验负载分布均匀。

5 试验方法5.1 试验设备5.1.1 冲击机所使用的冲击试验机就能产生规定的输入冲击脉冲，如图2或图3所示。

冲击试验机的振动形式可以是自由跌落式，弹性回跳式，非弹性式，压缩空气式或其它振动形式。

5.1.1.1 冲击试验机的校准可以使用一个实际的试验项目或一个模拟的负载来校准试验机。

然后用规定的波形来校准冲击机，两次边疆的冲击施加在校准负载上应产生如图2或图3所给出的误差包络线内的波形。

然后拆除校准负载而对实际的样品进行冲击。

除了用实际样品替代校准负载外，如果所有保留条件相同，就应认为这样的校准符合波形的要求。

5.1.2测量仪器传感器应用标准的传感器进行校准，应达到±2%的精度。

为了达到试验程序的误差要求，测量仪器应满足下列特性：5.1.2.1 频率响应整个测量系统的频率响应，包括传感器和读出装置，应符合图4中的规定。

EIA STANDARD TP-104A Flammability Test Procedure for Electrical Connectors EIA-364-104A (Revision of EIA-364-104)SEPTEMBER 2000ELECTRONIC COMPONENTS, ASSEMBLIES & MATERIALSASSOCIATION THE ELECTRONIC COMPONENT SECTOR OF THE ELECTRONIC INDUSTRIES ALLIANCENOTICEEIA Engineering Standards and Publications are designed 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 such Standards and Publications shall not in any respect preclude any member or nonmember of EIA 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 EIA members, whether the standard is to be used either domestically or internationally. Standards and Publications are adopted by EIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, EIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard or Publication.This standard is based upon the major technical content of International Electrotechnical Commission standard 512-9, test 20a, flammability, needle-flame; 1992-04. It conforms in all essential respects to this IEC standard.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 applicability of regulatory limitations before its use.(From Standards Proposal No. 4782-R, formulated under the cognizance of the CE-2.0 National Connector Standards Committee.)Published byELECTRONIC INDUSTRIES ALLIANCE 2000Technology Strategy & Standards Department2500 Wilson BoulevardArlington, VA 22201PRICE: Please refer to the currentCatalog of EIA Electronic Industries Alliance Standards and Engineering Publications or call Global Engineering Documents, USA and Canada (1-800-854-7179)International (303-397-7956)All rights reservedPrinted in U.S.A.中国可靠性网 CONTENTSClause Page 1Introduction (1)1.1Scope (1)2Test resources (1)2.1Equipment (1)2.2Material (2)3Test specimen (2)3.1Description (2)3.2Preparation (3)4Test procedure (3)5Details to be specified (4)6Test documentation (4)Table1Test conditions (3)2Flame and after-glow extinguishing time (4)Figure1Flammability test setup (5)i中国可靠性网 (This page left blank)iiEIA-364-104APage 1TEST PROCEDURE No. 104AFLAMMABILITY TEST PROCEDUREFORELECTRICAL CONNECTORS(From EIA Standards Proposal No. 4782-R, formulated under the cognizance EIA CE-2.0 Committee on National Connector Standards, and previously published in EIA 364 as TP-104)1 Introduction1.1 ScopeThis standard establishes a test method to determine the connector's resistance to burning when exposed to a flame. Burning resistance is defined as the ability to not support or propagate combustion after an ignition source is removed. This test evaluates the time it takes for the flame of a burning connector to extinguish after removal of the applied flame, and the possibility of the spread of burning, as caused by burning droplets and after-glow. This test does not simulate any actual service application. It is intended to test a connector by itself in a condition that can readily be duplicated in any test laboratory.2 Test resources2.1 Equipment2.1.1 Test chamberA test chamber shall be used that is protected from drafts but provided with means for venting fumes at the top and admitting an adequate supply of fresh air at the bottom. A chemistry hood with the exhaust fan turned off, or a metal box about 0.6 meter (2 feet) wide by 0.9 meter (3 feet) high by 0.6 meter (2 feet) deep, with an open front or a viewing window and holes for air intake and venting of fumes may be used.2.1.2 BurnerA Bunsen or Tirrill, or equivalent burner with a 6.3 millimeters (0.25 inch) inlet, a nominal bore of 9.6 millimeters (0.38 inch) , and a height of approximately 102 millimeters (4 inches) from the primary inlets to the top. The tube shall not be equipped with end attachments such as a stabilizer.中国可靠性网 EIA-364-104APage 22.1.3 StandA ring stand with clamps, or the equivalent, for horizontal and vertical positioning of the specimen and the wire gauze. Mounting clamps shall be located so as not to act as heat sinks. 2.1.4 Timing deviceStop watch or other suitable timing device.2.1.6 Conditioning environmentConditioning room or chamber capable of being maintained at 23 °C ± 2 °C (73 °F ± 3.6 °F) anda relative humidity of 45% to 55%.2.2 Material2.2.1 Wire gauzeA 20 mesh (20 openings per 25.4 millimeters (1 inch)), 0.43 millimeter (0.017 inch) diameter iron wire gauze, 127 millimeters (5 inches) square and/or a piece of flammable material, a layer of untreated surgical cotton, shall be positioned centrally and horizontally 305 millimeters (12 inches) below the bottom of the specimens so that any burning particles or material dripping from the specimen will fall on the flammable material.2.2.2 Gas supplyA supply of technical grade methane gas with suitable regulator and meter for uniform gas flow (natural gas having a heat content of approximately, 37 x 106 J/m3 = 1000 Btu/ft3 has been found to provide similar results).3 Test specimen3.1 DescriptionA test specimen shall consist of an unmated connector with unwired contacts assembled. The test procedure requires a minimum of three test specimens.EIA-364-104APage 3 3.2 PreparationSpecimens shall be thoroughly cleaned of oil, grease, dirt, and foreign material using a noncombustible solvent. The specimens are to be conditioned for at least 48 hours at 23 °C ± 2 °C (73 °F ± 3.6 °F) and a relative humidity of 45% to 55% to establish moisture equilibrium prior to testing.4 Test procedureUnless otherwise specified, the following applicable test procedure shall be complied with.4.1 Unless otherwise specified, testing shall be performed at standard ambient conditions.4.2 The test specimen shall be held by a mounting clamp within the chamber, with the wiring face vertical and its longest dimension parallel to, and a minimum of 152 millimeters (6 inches) from, any side of the chamber.4.3 A piece of flammable material shall be positioned as specified in 2.1.3.4.4 The flame produced by the burner indicated in 2.1.2 shall be not less than 843 °C (1,550 °F).4.5 The burner flame shall be applied in accordance with the test conditions of table 1, centrally at the lower edge of the test specimen to the wiring face (back) for one set of test specimens and to the mating face (front) for another set of test specimens. It shall be positioned perpendicular to the specimen, and at an angle of 30 degrees to the vertical plane of the specimen. The flame shall not impinge on the clamps or other devices that hold the test specimen, unless these devices are normally used in service to support the specimen. The burner shall be positioned from the lower edge of the specimen so that the end of the burner tube is 1/2 the height of the flame; see figure 1.Table 1 - Test conditionsCondition Flame height Flame application time,seconds Number of applicationsof flameA38 mm (1.50 in)601 B38 mm (1.50 in)301 C19 mm (0.75 in)101中国可靠性网 EIA-364-104APage 44.6 Unless otherwise specified, the following shall be the criteria for failure:4.6.1 Burning after removal of applied flame shall extinguish within the time specified in table 2.4.6.2 After-glow shall extinguish within time specified in table 2 after burning ceases.4.6.3 There shall be no dripping that shall cause the flammable material to ignite.4.6.4 There shall be no violent burning or explosive type fire.Table 2 - Flame and after-glow extinguishing timeConditions Flame extinguishing time, seconds After-glow extinguishing time, seconds A33B1515C Flame extinguish time plus after-glow extinguish time shall be less than or equalto 30 seconds5 Details to be specifiedThe following details shall be specified in the referencing document:5.1 Test condition from table1; see 4.55.2 Flame and after-glow extinguishing time, if other than the time specified in table 2; see 4.66 DocumentationDocumentation shall contain the details specified in clause 5, with any exceptions, and the following:6.1 Title of test6.2 Test condition and results of test procedure; see table 16.3 Values and observations6.3.1 Time in seconds of burning of visible flame on the specimen after removal of applied flameEIA-364-104APage 5 6.3.2 Time in seconds of after-glow after extinction of flame6.3.3 Any dripping or falling of particles (burning or not burning) onto the flammable material or ignition of the flammable material6.3.4 Any violent explosion, sputtering, or other unusual type burning6.4 Name of operator and date of testFigure 1 - Flammability test setup中国可靠性网 EIA Document Improvement ProposalIf in the review or use of this 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 Industries AllianceTechnology Strategy & Standards – Publications Office2500 Wilson Blvd.Arlington, VA 22201FAX: (703) 907-7501中国可靠性网 。

EIA STANDARD TP-23CLOW LEVEL CONTACT RESISTANCE TEST PROCEDURE FOR ELECTRICAL CONNECTORS AND SOCKETSEIA/ECA-364-23C (Revision of EIA-364-23B)JUNE 2006ELECTRONIC COMPONENTS, ASSEMBLIES & MATERIALSASSOCIATION THE ELECTRONIC COMPONENTS SECTOR OF THE ELECTRONIC INDUSTRIES ALLIANCENOTICEEIA Engineering Standards and Publications are designed 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 such Standards and Publications shall not in any respect preclude any member or nonmember of EIA 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 EIA members, whether the standard is to be used either domestically or internationally.Standards and Publications are adopted by EIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, EIA does not assume any liability to any patent owner, nor does it 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 Standard 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 applicability of regulatory limitations before its use.(From Standards Proposal No. 5105 formulated under the cognizance of the CE-2.0 National Connectors Standards Committee.Published by©ELECTRONIC INDUSTRIES ALLIANCE 2006Technology Strategy & Standards Department2500 Wilson BoulevardArlington, VA 22201PRICE: Please refer to the currentCatalog of EIA Electronic Industries Alliance Standards and Engineering Publications or call Global Engineering Documents, USA and Canada (1-800-854-7179)International (303-397-7956)All rights reservedPrinted in U.S.A.PLEASE !DON'T VIOLATETHELAW!This document is copyrighted by the EIA 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 information, contact:Global Engineering Documents15 Inverness Way EastEnglewood, CO 80112-5704 or callUSA and Canada (1-800-854-7179), International (303-397-7956)CONTENTSClause Page (1)1 Introduction (1)1.1 Scope (1)1.2 Object2 Test (1)resources (1)2.1 Equipment (2)2.2 Fixture3 Test specimen (2) (2)procedure4 Test4.1 Option 1, integrated micro-ohmmeter (3)4.2 Option 2, current reversal (direct current) (3)4.3 Option 3, offset compensation (3)4.4 Option 4, alternating current (3)5 Details to be specified (4) (4)documentation6 Test(This page left blank)EIA-364-23CPage 1TEST PROCEDURE No. 23CLOW LEVEL CONTACT RESISTANCE TEST PROCEDUREFORELECTRICAL CONNECTORS AND SOCKETS(From EIA Standards Proposal No. 5105, formulated under the cognizance EIA CE-2.0 Committee on National Connector Standards, and previously published in EIA-364-23B.)1 Introduction1.1. ScopeThis test procedure may apply to any type or combination of current carrying members such as pin and socket contacts, relay contacts, wire and crimp connectors, or printed circuit board and contact.1.2. ObjectThe object of this test procedure is to detail a standard method to measure the electrical resistance of two current carrying members in mutual contact. This test procedure specifies test voltages that will not disturb insulating films on the contacting surface nor cause asperity melting. This procedure addresses the effect of thermal EMF’s, a source of measurement error.2 Test resources2.1. EquipmentLow level contact resistance measurements may be made using a discrete power source, ammeter and micro-voltmeter or an integrated micro-ohmmeter.2.1.1. Integrated micro-ohmmeterFour wire resistance meter that regulates test current, limits open circuit (source) voltage to 20 millivolts maximum, corrects for thermal EMF’s, measures voltage drop, such as a Keithley Micro-Ohmmeter model 580, HP 4338B or equivalent, may be used. These meters generally display the measured resistance directly in ohms.EIA-364-23CPage 22.1.2. Discrete Equipment2.1.2.1. Power sourcePower supply or circuit capable of regulating either alternating or direct current within 5% of desired value, and limiting the open circuit (source) voltage to 20 millivolts maximum.2.1.2.2. Ammeter or current shuntCapable of measuring either alternating or direct current within an accuracy of 2%.2.1.2.3. Micro-voltmeterCapable of measuring either alternating or direct current voltage within an accuracy of 2%2.1.2.4. Low Level CircuitLow level circuit delivering 100 milliamperes at 20 millivolts open circuit potential.2.2. FixtureThe test specimen shall be mated or fixtured as in normal service, or as specified in the referencing document. Fixturing of specimens shall not disturb the natural normal force of the mating contacts.3 Test specimen3.1 The test specimen shall be wired as specified in the referencing document. Connections may be made by use of clips, by soldering to a printed circuit board and/or wires. Subsequent measurements should be made at the same point to reduce variability due to path length changes. Soldering the sample to a printed circuit board or to wires fixes the measurement point.3.2 Voltage probes for crimp contacts shall be placed on the conductors a distance of 152.4 millimeters ± 3.0 millimeters (6.00 inch ± 0.12 inch) from each other, with the mated contacts in the center of that distance unless otherwise specified in the referencing document.4 Test procedureMeasure and record the contact resistance of the specimen under test with a test current of 100 milliamperes maximum and 20 millivolts open circuit (source) voltage maximum. One of the following options shall be used to correct for thermal EMF’s.EIA-364-23CPage 34.1. Option 1, integrated micro-ohmmeterUse an 4 wire micro-ohmmeter. The micro-ohmmeter shall employ a method to correct forthermal EMF. Such methods include; alternating current, pulsed direct current or currentreversal. Integrated meters generally measure the actual test current and the voltage drop acrossthe specimen. The measured resistance is then internally calculated and displayed.4.2. Option 2, current reversal (direct current)Apply direct current through the specimen. Measure the current and record it as I f . Measure thevoltage drop across the specimen and record it as V f . Reverse the direction of current throughthe specimen. Do not reverse the voltage leads. Measure the current and record it as I r . Measurethe voltage drop across the specimen and record it as V r .Calculate the contact resistance with the following equation:rf r f I I V V R +−= (1) NOTE ⎯ The sign of the voltage readings shall be carried into the equation to obtain aproper result.4.3. Option 3, offset compensationApply direct current through the specimen. Measure the current and record it as I . Measure thevoltage drop across the specimen and record it as V 1.Remove the current from the specimen. Measure the voltage drop across the specimen as V 2. Calculate the contact resistance with the following equation:IV V R 21−= (2) 4.4. Option 4, alternating currentApply alternating current through the specimen. Measure the current and record it as I . Measurethe voltage drop across the specimen using a true RMS voltmeter and record it as V .Calculate the contact resistance with the following equation:I V R = (3)EIA-364-23CPage 45 Details to be specifiedThe following details shall be specified in the referencing document:5.1 Test specimen preparation or conditioning5.2 Test specimen mating conditions or fixturing5.3 Placement of test leads on specimen (see 3.2)5.4 Test current and voltage other than 100 milliamperes maximum and 20 millivolts open circuit (source) voltage maximum5.5 Number of specimens to be tested6 Test documentationDocumentation shall contain the details specified in clause 5, with any exceptions, and the following:6.1 Title of test6.2 Specimen description6.3 Test specimen preparation or conditioning6.4 Test specimen mating conditions or fixturing6.5 Test equipment used, and date of last and next calibration6.6 Test current and voltage other than 100 milliamperes maximum and 20 millivolts open circuit (source) voltage maximum6.7 Values and observations6.8 Name of operator and date of testEIA-364-23CPage 5EIA Document Improvement ProposalIf in the review or use of this 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 Industries AllianceTechnology Strategy & Standards Department – Publications Office2500 Wilson Blvd.Arlington, VA 22201FAX: (703-875-8906)。