《BS-9074-N007-1978.pdf》由会员分享,可在线阅读,更多相关《BS-9074-N007-1978.pdf(14页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS 9074 N007: 1978 Incorporating Amendment No. 1 Detail specification for Fixed polystyrene film dielectric extended foil capacitors Rectangular non-metallic case, unidirectional terminations Full plus additional assessment level UDC 621.319.4:621.315.616.96:678.746.22-416 Licensed
2、Copy: London South Bank University, London South Bank University, Fri Dec 08 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9074 N007:1978 BSI 01-2000 Committee reference ECL/4 ISBN 0 580 10577 6 A British Standard does not purport to include all the necessary provisions of a contract. Users
3、 of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 9 and a back cover. This standa
4、rd has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.Date of issueComments 3211January 1980Indicated by a sideline in the margin Licensed Copy: London So
5、uth Bank University, London South Bank University, Fri Dec 08 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9074 N007:1978 BSI 01-2000i Contents Page 1Constructional details1 2Ratings and dimensions1 3Ratings and characteristics2 4Marking2 5Related documents2 6Ordering information2 7Inspect
6、ion requirements2 Appendix A Flammability test8 Appendix B Gauge8 Appendix C Temperature coefficient and cyclic drift8 Table 1 Tolerances on capacitance range1 Table 2 Dimensions in millimetres1 Table 3 Performance requirements7 Licensed Copy: London South Bank University, London South Bank Universi
7、ty, Fri Dec 08 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9074 N007:1978 BSI 01-20001 1 Constructional details 1.1 Standard termination lengt
8、h is 3 mm minimum unless otherwise requested. 1.2 The capacitor shall be capable of seating firmly on the printed circuit board, and the body mounting shall not seal off the holes in the printed circuit board through which the capacitor leads pass. 1.3 Silicone materials or silicone mould release ag
9、ents shall not be used. 2 Ratings and dimensions Capacitance range 47 pF to 15 000 pF preferably in the E192 series. Table 1 Tolerances on capacitance range Table 2 Dimensions in millimetres ELECTRONIC COMPONENTS OF ASSESSED QUALITY DETAIL SPECIFICATION IN ACCORDANCE WITH BS 9074 MANUFACTURERS TYPE
10、NUMBER See PD 9002 OUTLINE AND DIMENSIONS. THIRD ANGLE PROJECTION See Table 2 All dimensions are in millimetres Stand-offs and their dimensions may vary Marking information see clause 4. For ordering information see clause 6 FIXED CAPACITOR POLYSTYRENE FILM DIELECTRIC EXTENDED FOIL TYPICAL CONSTRUCT
11、ION RECTANGULAR NON-METALLIC CASE UNIDIRECTIONAL TERMINATIONS CLASSIFICATION 40/070/21 FULL ASSESSMENT PLUS ADDITIONAL Capacitance range (pF) Rated voltage (V) Minimum preferred tolerances 47 to 30063 1.5 pF 300 to 15 00063 0.5 % Refer to Qualified Products List PD 9002 for details of manufacturers
12、approved to this specification Capacitance range Z1 max. Y max. Z2 max. S1 nominal S2 nominal d nominal 47 pF to 15 000 pF7.513.07.55.085.080.6 preferred 0.5 permissible NOTEThe leadout positioning tolerance shall be such that, when the leadouts are located in two 1.0 mm diameter holes centred on th
13、e opposing diagonal corners of a 5.08 mm square, the case shall be capable of being positioned within a 7.62 mm square concentric and parallel with the 5.08 mm square. A suitable gauge is shown in Appendix B. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:27
14、:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9074 N007:1978 2 BSI 01-2000 3 Ratings and characteristics 4 Marking 4.1 Coding in accordance with BS 1852 shall be used where possible. 4.2 Capacitance and tolerance shall be marked on the opposite end to the leadouts. 5 Related documents BS 1852, M
15、arking codes for resistors and capacitors. (IEC 62) BS 2011, Basic environmental testing procedures. (IEC 68) BS 3763, The International System of units (SI). BS 6001, Sampling procedures and tables for inspection by attributes. (IEC 410) BS 9000, General requirements for electronic components of as
16、sessed quality. BS 9070, Fixed capacitors of assessed quality: generic data and methods of test. PD 9002, Qualified products list for electronic components of assessed quality. 6 Ordering information Orders for components to this specification shall include the following minimum information: a) Capa
17、citance value and tolerance (see Table 1) and rated voltage. b) Quantity. c) Manufacturers type number. d) BS specification number, issue, date. e) Leadout length. EXAMPLE. 680 pF 1.25 % 63 V BS 9074 N007 7 Inspection requirements 7.1 The capacitors covered by this specification shall be tested to t
18、he inspection requirements given below. 7.2 This schedule gives the appropriate tests from BS 9070:Section 4 or, where appropriate, from Section 1. For additional details reference should be made to BS 9070:Section 1. Tests shall be performed in the order in which they appear in this schedule. 7.3 S
19、amples submitted to tests marked “(D)” shall not be accepted for release under BS 9000 (see 2.6.5 of BS 9000-1). 7.4 The climatic sequence shall be carried out at the next tighter AQL in the event of failure to meet the requirements of subgroup C3. Environmental classification40/070/21 Rated tempera
20、ture70 C Bump severity390 m/s2; 6 ms duration; 1 000 10 bumps Vibration severity0.75 mm or 98 m/s2; 10 Hz to 500 Hz; 6 h duration Low air pressure8.5 kPa (85 mbar) SolderabilityMethod 1 or 3 of BS 2011-2.1Ta:1977 Resistance to soldering heat350 C; solder bath method, with heat shield FlammabilityPro
21、pane gas jet, 0.5 mm bore; Flame length 12 mm 2 mm 2 cycles of 15 s. See Appendix A Temperature coefficientSee Appendix C Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9074 N007:1978 BSI 01-20003 Inspectio
22、n BS 9070:Section 1 or BS 9070:Section 4 reference and conditions of test Performance requirements where not otherwise specified GROUP A Subgroup A0 Voltage proof4.2.4.2 To be applied on a sampling basis, lot-by-lot Subgroup A4 is not applicable 100 % inspection Test point A only; duration 1 s minim
23、um No breakdown or flashover Subgroup A1 Visual examination1.2.2 Inspection level I, AQL 1.5 %There shall be no resin on terminations beyond the case boundary. As 1.2.2 Subgroup A2 Capacitance4.2.4.3 Inspection level II, AQL 0.65 % As Table 3 code A Subgroup A3 Tangent of loss angle Insulation resis
24、tance 1.2.4.4 4.2.4.7 Inspection level I, AQL 1.5 % Test point A only As Table 3 code B As Table 3 code C Subgroup A5 CTR information4.1.11Attributes information for subgroups A1, A2 and A3 GROUP B Subgroup B1 Dimensions1.2.3.1 To be applied on a sampling basis, lot-by-lot Subgroups B3 to B6 are not
25、 applicable Inspection level S-4, AQL 4.0 % As in 1.2.3.1 Subgroup B2 (D) Initial measurements Capacitance Tangent of loss angle Insulation resistance Robustness of terminations Solderability (without ageing) Climatic sequence Final measurements Visual examination Capacitance Tangent of loss angle I
26、nsulation resistance Outer foil terminations 4.2.4.3 1.2.4.4 4.2.4.7 1.2.6.1 4.2.6.2.(1) 4.2.6.8 1.2.2 4.2.4.3 1.2.4.4 4.2.4.7 1.2.4.9 Inspection level S-3, AQL 4.0 % (See 7.4 above) Tensile only BS 2011 2.1Ta Method 1 or 3 As Table 3 code A As Table 3 code B As Table 3 code C 2 s maximum for method
27、 3 sample to have sufficient termination length to carry out test. Method 1 to be used for short leads. As Table 3 codes D and E As Table 3 code F As Table 3 code G As Table 3 code H Method to be decided Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:27:32 G
28、MT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9074 N007:1978 4 BSI 01-2000 Inspection BS 9070:Section 1 or BS 9070:Section 4 reference and conditions of test Performance requirements where not otherwise specified Subgroup B7 (D) Initial measurements Capacitance Tangent of loss angle Insulation resist
29、ance Endurance Final measurements Visual examination Capacitance change Tangent of loss angle Insulation resistance 4.2.4.3 1.2.4.4 4.2.4.7 4.2.7 1.2.2 4.2.4.3 1.2.4.4 4.2.4.7 Inspection level S-4, AQL 1.5 % To be applied only in the event of a failure in subgroup C5 48 h duration As Table 3 code A
30、As Table 3 code B As Table 3 code C As Table 3 codes D and E u 0.5 % + 0.5 pF As Table 3 code G As Table 3 code H Subgroup B8 CTR information4.1.11Attributes information for subgroups B1, B2 and B7 GROUP C Subgroup C1 (D) Inductance 1.2.4.8 To be applied on a sampling basis at three-monthly interval
31、s Subgroup C2 not applicable Inspection level S-3, AQL 6.5 % Applicable only where C 500 pF50 nH max. Temperature coefficient Cyclic drift See Appendix C See Appendix C See Appendix C See Appendix C Subgroup C3(a) (D) Initial measurements Capacitance Tangent of loss angle Insulation resistance Damp
32、heat, steady state Final measurements Visual examination Capacitance Tangent of loss angle Insulation resistance 4.2.4.3 1.2.4.4 4.2.4.7 4.2.6.9 1.2.2 4.2.4.1 1.2.4.4 4.2.4.7 Inspection level S-3, AQL 6.5 % As Table 3 code A As Table 3 code B As Table 3 code C As Table 3 codes D and E As Table 3 cod
33、e F As Table 3 code G As Table 3 code H Subgroup C3(b) (D) Flammability Inspection level S-4, AQL 4 % Minimum sample size 13 See Appendix A Extinguish in u 15 s after first immersion. Extinguish in u 30 s after second immersion. Subgroup C4 (D) Insulation resistance4.2.4.7 Inspection level S-4, AQL
34、4.0 % Minimum sample size 11 At 70 C, test point A only (see 1.2.1) 10 G7 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9074 N007:1978 BSI 01-20005 Inspection BS 9070:Section 1 or BS 9070:Section 4 referen
35、ce and conditions of test Performance requirements where not otherwise specified Subgroup C5 (D) Initial measurements Capacitance Tangent of loss 4.2.4.3 1.2.4.4 Inspection level S-3, AQL 4.0 % As Table 3 code A As Table 3 code B Insulation resistance Endurance Damp heat, cyclic Final measurements V
36、isual examination Capacitance Tangent of loss angle Insulation resistance 4.2.4.7 4.2.7 4.2.6.8(6) 1.2.2 4.2.4.3 1.2.4.4 4.2.4.7 1 000 h 1 cycle As Table 3 code C As Table 3 codes D and E As Table 3 code F As Table 3 code G As Table 3 code H Subgroup C6 CTR information4.1.11Attributes information fo
37、r subgroups C1, C3 and C4. Measurements information for capacitance, tangent of loss angle, and insulation resistance for subgroup C5 GROUP DTo be applied on a sampling basis at three-yearly intervals. Subgroup D4 not applicable Subgroup D1 (D) Initial measurements Capacitance Tangent of loss angle
38、Insulation resistance Subgroup D1 (i) Robustness of terminations Visual examination Resistance to soldering heat Visual examination 4.2.4.3 1.2.4.4 4.2.4.7 1.2.6.1 1.2.2 4.2.6.2(2) 1.2.2 Inspection level S-3, AQL 4.0 % Minimum sample size 13 Approximately 50 % of the specimens (minimum 7) Length of
39、terminations W 10 mm Method 1, solder bath, 350 C Length of termination W 10 mm As Table 3 code A As Table 3 code B As Table 3 code C As Table 3 code D As Table 3 code D Subgroup D1 (ii) Vibration Visual examination Bump 4.2.6.7 1.2.2 4.2.6.4 Remainder of the specimens (minimum 6) Procedure B4, 3 h
40、in one sense radially, 3 h in one sense axially. Component to be mounted in PWB configuration. At room temperature 1 000 10 bumps. The sample shall be equally divided between each of the three perpendicular planes. Component to be mounted in PWB configuration. As Table 3 code D Licensed Copy: London
41、 South Bank University, London South Bank University, Fri Dec 08 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9074 N007:1978 6 BSI 01-2000 Inspection BS 9070:Section 1 or BS 9070:Section 4 reference and conditions of test Performance requirements where not otherwise specified Subgroup D1 (
42、ii) Visual examination Subgroup D1 (iii) Rapid change of temperature Climatic sequence Final measurements Visual examination Capacitance Tangent of loss angle Insulation resistance 1.2.2 4.2.6.3 4.2.6.8 1.2.2 4.2.4.3 1.2.4.4 4.2.4.7 Specimens from (i) and (ii) combined As Table 3 code D As Table 3 c
43、odes D and E As Table 3 code F As Table 3 code G As Table 3 code H Subgroup D2 (D) Initial measurements Capacitance Tangent of loss angle Insulation resistance Endurance Damp heat, cyclic Final measurements Visual examination Capacitance Tangent of loss angle Insulation resistance 4.2.4.3 1.2.4.4 4.
44、2.4.7 4.2.7 4.2.6.8(6) 1.2.2 4.2.4.3 1.2.4.4 4.2.4.7 Inspection level S-3, AQL 4.0 % Duration 2 000 h 2 cycles As Table 3 code A As Table 3 code B As Table 3 code C As Table 3 codes D and E As Table 3 code F As Table 3 code G As Table 3 code H Subgroup D3 (D) Initial measurements Visual examination
45、Mould growth Final measurements Visual examination 1.2.2 4.2.6.12 1.2.2 Inspection level S-3, AQL 4.0 % 28 days exposure BS 2011-2.1J Clause 6.3.1 of BS 2011-2.1J:1977 u scale 2 Subgroup D5 (D) Initial measurements Capacitance Tangent of loss angle Insulation resistance Storage at low temperature Fi
46、nal measurements Visual examination Capacitance Insulation resistance Voltage proof 4.2.4.3 1.2.4.4 4.2.4.7 4.2.6.11(2) 1.2.2 4.2.4.3 4.2.4.7 4.2.4.2 Inspection level S-3, AQL 4.0 % At lower category temperature Test point A only 63 V, 1 min 5 s. As Table 3 code A As Table 3 code B As Table 3 code C
47、 As Table 3 code D As Table 3 code G As Table 3 code H No breakdown on flashover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:27:32 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9074 N007:1978 BSI 01-20007 Table 3 Performance requirements Inspection BS 907
48、0:Section 1 or BS 9070:Section 4 reference and conditions of test Performance requirements where not otherwise specified Subgroup D6 CTR information4.1.11Attributes information for subgroups D1, D2 and D5. Measurements information shall be given for capacitance, tangent of loss angle, and insulation
49、 resistance for subgroups D1 and D2 CodePerformance requirements AThe capacitance shall be within the specified selection tolerance limits 0.03 % 1 000 pF at 1 kHz BThe tangent of the loss angle shall not exceed: 0.1 % u 1 000 pF at 1 MHz CTest point A Not less than:100 G7 Test point C Not less than:100 G7 DThere shall be no visible damage that is likely to reduce the usability of the product for its intended application EMarking shall be legible FChange shall not exceed: 0.5 % + 1 pF GValue shall not exceed either 1.2 times the initial meas
链接地址:https://www.31doc.com/p-3736708.html