ECA-377-1970-R1990.pdf
《ECA-377-1970-R1990.pdf》由会员分享,可在线阅读,更多相关《ECA-377-1970-R1990.pdf(20页珍藏版)》请在三一文库上搜索。
1、- - - 1 EIA 377 70 323i.1600 00bb859 T m 5- A N S I C8 3.6 2-1 97 1 Approved July 14, 1971 A M ER ICAN NATION A 1 STAND AR D S INSTITUTE ElA STANDARD h h 9 VI Metallised Dielectric Capacitors ? ? in Metallic and Non-Metallic Cases for Direct C u r ren t App 1 ca t ion 9 Y RS1377 1 July 1970 Engineer
2、ing Department ELECTRONIC INDUSTRIES ASSOCIATION P Copyright Electronic Components, Assemblies the fiist and second digits are the first and second significant figures of the nominal capacitance expressed in picofarads (pF.). The third digit states the number of zeros following the two significant f
3、igures. Example: 5 6 2 5 6 O OpF.or.0056uF. RS-377 Page 3 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 00:03:19 MDTNo reproduction or networking permitted wit
4、hout license from IHS -,-,- E I A 377 70 M 3234b00 00bb8b4 3 M I +2% +lo% +lo% +lo% -1.0% +6% -1% RS-377 Page 4 Charac- teristic Letter B K L N Q S R *NOTE: B K L N Q S R Maximum Operating Temp. 125C 125C 125OC 125C 85C 85C 1 7OoC TABLE I CHARACTERISTIC* Maximum Dissipation Factor At 25C 0.6% 1.5% 1
5、 .O% 1.25% o. 1% 2.5% 0.25% At Hi-Temp. 0.6% 2.0% 2.5% 2.0% o. 2% 2.5% 0.5% Maximum Capacitance Change At-55C 1 At85C I3% -10% -10% -10% +1.5% -12% +2% Insulation resistance variation with temperature is shown in detailed parts specifications in appendices of this standard. defines Metallized Polyca
6、rbonate or equal. defines Metallized Paper or equal. defines Metallized Polyethylene Terephthalate or equal. defines Metallized Paper and Polyester Film Combination or equal. defines Metallized Polystyrene or equal. defines Metallized Cellulose Acetate or equal. defines Metallized Polyfluoroethylene
7、 or equal. At Hi-Temp. +2% +15% +2wo +15% -3% 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 00:03:19 MDTNo reproduction or networking permitted without license
8、 from IHS -,-,- E I A 377 70 m 3234600 0066865 5 m RS-377 page5 2.1.8 Capacity Tolerance 2.1.8.1 The permissible tolerance from nominal capacitance value is expressed by a letter designation as follows: Designation Tolerance ( 9 % of nominal) F f I%* *Capacitance measurements as G f 2%* specified in
9、 3.6.1 shall be J f 5% made at or correlated to K 110% 25C f 2OC at a relative M f20% humidity of 35% maximum. 3. STANDARD TESTS 3.1 Standard Test Conditions 3.1.1 or referred t o , are as follows: Unless otherwise Specified, the atmospheric conditions at which tests are to be made, Temperature . 25
10、OC plus 10C minus 5C Barometric pressure 28” to 32” Hg. Relative humidity Less than 80% 3.2 Testing Program 3.2.1 Recommended order of tests shall be in the sequence listed in Table II. 3.2.2 agreement between the user and the supplier. The types of tests, number of samples and allowable failures sh
11、all be determined by 3.2.3 No sample shall be subjected to both Group 2 and Group 3 tests. 3.3 Mechanical Inspection 3.3.1 Dimensions must be within the tolerance allowed. 3.3.2 Marking shall be legible, complete and correct. 3.4 Mechanical Tests O - 3.4.1 Pull Test Copyright Electronic Components,
12、Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 00:03:19 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A 377 70 m 3234600 OObbAbb 7 m RS-377 Page 6 TABLE I I GROU
13、P 1 (Ali Samples) Mechanical Inspection Marking Dielectric Test Capacitance Dissipation Factor Insulation Resistance Leak Test (Metal Cased Styles Only) GROUP 2 (50% of Samples) Mechanical Tests (except bending and vibration tests) Capacitance change at low temperature Capacitance change at high tem
14、perature Insulation resistance at high temperature Life GROUP 3 (50% of Samples for non-metal cased styles and 25% for metal cased styles) Bending Test Humidity Test GROUP 4 Vibration Paragraph 3-3 4. 3.5 3.6 3.7 3.8 3.13 3.4 3.10 3.9 3.8.4 3.1 1 3.4.2.1 3.12 (25% of Samples, Metal Cased Styles) 3.4
15、.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 00:03:19 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A 377 70 W 3234b00 0066
16、867 9 W RS-377 Page 7 3.4.1.1 Capacitors shall withstand a steady pull as specified in the detail parts specification applied to the terminal in the direction of terminal egress, for 10 seconds, per RS-186, Method 6, Type 1. Terminals shall not fracture or break, nor shall there be any damage to the
17、 capacitor or seal. 3.4.2 Bending Test 3.4.2.1 Capacitors shall have the load specified in the detail parts specifications freely suspended from each of its leads in turn, for two (2) bends per RS-186, Method 6, Type III test. Two bends in opposite direction shall be applied. The leads shall not fra
18、cture or break, nor shall there be any damage to the capacitor or seal. 3.4.3 Ductility Test 3.4.3.1 Five complete turns of each lead shall be wound around a cylinder having a diameter equal to the nominal diameter of the lead wire. The leads and lead coating shall not fracture or break. 3.4.4 Solde
19、rability Test 3.4.4.1 Lead wires shall be subjected to solderability tests of EIA Standard RS-178, test condition 1. At the completion of the test, the lead wires shall show evidence of acceptable solderability. 3.4.5 Vibration Metal cased styles shall be subjected to vibration requirements of EIA S
20、tandard RS-186, Method 7, Type I test. The capacitors shall be securely fastened by their normal mounting means. Wire-lead capacitors shall be secured 1/2” f 1/8” from the case. During the last 30 minutes of vibration in each direction, a signal of 1 KHz f 200 Hz at a level of 1 f 0.2 volts should b
21、e placed across the capacitor and measured with a suitable alternating-current recording device for the purpose of determining the presence of open circuits, short circuits, or intermittent contacts. 3.5 Dielectric Withstanding Voltage Test (See applicable portions of EL4 Standard RS-186, Method 4).
22、 3.5.1 Terminal to Terminal Capacitors shall be tested for fifteen seconds by applying between terminals a potential of 200% of rated voltage. Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bern
23、ie Not for Resale, 03/30/2007 00:03:19 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A 377 70 m 3234b00 OObbAb& O m RS-377 Page 8 3.5.1.1 Test voltages shall be applied through a current limiting resistor of not less than 20 ohms per volt and not more than 1000 ohms p
24、er volt. 3.5.1.2 Capacitors shall be discharged through current limiting resistor described in paragraph 3.5.1.1. 3.5.1.3 Capacitors shall not become permanently short circuited or otherwise damaged as a result of application of dielectric test voltages of paragraphs 3.5.1 or 3.5.1.1. 3.5.2 Terminal
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ECA 377 1970 R1990
链接地址:https://www.31doc.com/p-3755651.html