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1、BRITISH STANDARD BS 9075 N023: 1978 Incorporating Amendment Nos. 1, 2, 3 and 4 Detail specification for Fixed monolithic ceramic dielectric capacitors (type 1B) Rectangular non-metallic case, centred wires on one face Full assessment level UDC 621.319.4:621.3.049.774:621.315.612 Licensed Copy: Londo
2、n South Bank University, London South Bank University, Fri Dec 08 02:27:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9075 N023:1978 BSI 01-2000 ISBN 0 580 10341 2 A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible
3、 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 8 and a back cover. This standard has been updated (see copyright da
4、te) 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 3212January 1980 3363September 1980 3835December 1981 7413January 1993Indicated by a sideline in the margin License
5、d Copy: London South Bank University, London South Bank University, Fri Dec 08 02:27:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9075 N023:1978 BSI 01-2000i Contents Page 1Ratings (including limiting conditions of use) and characteristics2 2Special characteristics2 3Additional information (not
6、for inspection purposes)2 4Marking of the component and package2 5Ordering information2 6Related documents2 7Inspection requirements3 Table 1 Dimensions and ratings1 Table 2 Test schedule3 Table 3 Test requirements8 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 0
7、8 02:27:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:27:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9075 N023:1978 BSI 01-20001 NOTE 1Tolerances on wire diameters are specified in 1.1.12 4) of BS
8、9070: Section 1:1969. Table 1 Dimensions and ratings ELECTRONIC COMPONENTS OF ASSESSED QUALITY: DETAIL SPECIFICATION FIXED CAPACITORS MONOLITHIC CERAMIC DIELECTRIC TYPE 1B RECTANGULAR NON METALLIC CASE, CENTRED WIRES ONE FACE FULL ASSESSMENT Leads symmetrical about centre line within 0.5 All dimensi
9、ons are in millimetres Pattern ref.Maximum dimensionsS 0.4 (see note 1) XYZ A3.813.812.542.54 B5.085.082.545.08 C7.627.622.545.08 NOTE 1Lead spacing (S) to be measured at the case for patterns A and C, and at the shoulder for pattern B. NOTE 2For individual manufacturers approved capacitance ranges
10、see PD 9002. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:27:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9075 N023:1978 2 BSI 01-2000 1 Ratings (including limiting conditions of use) and characteristics 2 Special characteristics Not applicable. 3 Addi
11、tional information (not for inspection purposes) 3.1 Application notes. For use in applications such as oscillator and tuning circuits when extreme stability and high Q are desirable. 4 Marking of the component and package The marking of the component and package shall be in accordance with the requ
12、irements of 1.1.6 of BS 9070: Section 1:1969. 5 Ordering information Orders for capacitors covered by this specification shall contain the following information (in accordance with the requirements of 2.4 of BS 9070: Section 2:1969): a) Quantity. b) Capacitance value and tolerance. (The code in clau
13、se 1 may be used for tolerance.) c) Rated voltage. d) pattern reference. e) BS specification number, issue number and date. Example: 1 000 pF, K, 100 V, B, BS 9075 N023:1978 6 Related documents BS 2011, Basic environmental testing procedures. BS 2488, Schedule of preferred numbers for the resistance
14、 of resistors and the capacitance of capacitors for telecommunication equipment. BS 6001, Sampling procedures and tables for inspection by attributes. BS 9000, General requirements for electronic components of assessed quality. BS 9070, Fixed capacitors of assessed quality: Generic data and methods
15、of test. PD 9002, BS 9000 Selection guide Part 1: Qualified products list. Capacitance rangeCapacitance values are taken from the E12 series of BS 2488 (IEC 63) Standard selection tolerances 0.5 pF(D), 5 % (J), 0 % (K) Temperature coefficientNPO C 20 pF: 0 30 p.p.m./C C u 20 pF: (0 + 120, 40).106 Ra
16、ted voltage UR50 V, 100 V and 200 V Category voltage UC50 V, 100 V and 200 V Environmental classification55/125/56 Bump severity390 m/s2, 4 000 10 bumps Vibration severity10 Hz to 2 000 Hz; 0.75 mm or 98 m/s2; 6 h Low air pressure2 kPa (20 mbar) Solderability2 s without ageing 3 s with ageing Resist
17、ance to soldering heat350 C Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:27:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9075 N023:1978 BSI 01-20003 7 Inspection requirements 7.1 The capacitors covered by this specification shall be tested in accordanc
18、e with the inspection schedule given in Table 2. 7.2 This schedule gives the appropriate tests from BS 9070: Section 1 or Section 5. 7.3 Where a subgroup contains more than one test, they shall be carried out in the order given in the schedule. 7.4 Samples submitted to tests which are marked as “(D)
19、” shall not be accepted for release under BS 9000 (see 2.6.5 of BS 9000-1:1971). Table 2 Test schedule Inspection BS 9070: Section 1 or Section 5 reference and conditions of test Performance requirements where not otherwise specified Group A Subgroup A0 Voltage proof (see note 1) 5.2.4.2 (To be appl
20、ied on a sampling basis lot-by-lot except subgroup A0) Subgroup A4 not applicable 100 % test Test point A for 2 s at 2 UR Test method 1 Maximum charge and discharge current: 0.05 A No breakdown or flashover Subgroup A1 Visual examination1.2.2 Inspection level I, AQL 1.5 % As 1.2.2 Subgroup A2 Capaci
21、tance5.2.4.3 Inspection level II, AQL 0.65 % As Table 3, code B Subgroup A3 Tangent of loss angle Insulation resistance 1.2.4.4 5.2.4.7 Inspection level I, AQL 1.5 % Test point A only As Table 3, code C As Table 3, code D Subgroup A5 CTR information5.1.11Attributes information for subgroups A1, A2 a
22、nd A3 Group B Subgroup B1 Dimensions1.2.3.1 (To be applied on a sampling basis lot-by-lot.) Subgroups B3, B4, B5 and B6 not applicable Inspection level S-4, AQL 4 % As 1.2.3.1 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:27:46 GMT+00:00 2006, Uncontrolled
23、Copy, (c) BSI BS 9075 N023:1978 4 BSI 01-2000 Table 2 Test schedule Inspection BS 9070: Section 1 or Section 5 reference and conditions of test Performance requirements where not otherwise specified Subgroup B2 (D) (See note 2) Robustness of terminations Visual examination Solderability (without age
24、ing) Initial measurement Capacitance Climatic sequence (restricted) Dry heat Damp heat, cyclic Cold Damp heat, cyclic Final measurements Visual examination Capacitance Tangent of loss angle Insulation resistance 1.2.6.1 5.2.6.2(1) 5.2.4.3 5.2.6.8 5.2.6.8(2) 5.2.6.8(3) 5.2.6.8(4) 5.2.6.8(6) 1.2.2 5.2
25、.4.3 1.2.4.4 5.2.4.7 Inspection level S-3, AQL 4 % Tensile and bending Solder globule One cycle only As Table 3, code A 2 s maximum As Table 3, code B As Table 3, code A As Table 3, code E As Table 3, code G As Table 3, code F Subgroup B7 (D) Initial measurement Capacitance Endurance Final measureme
26、nts Visual examination Capacitance Tangent of loss angle Insulation resistance 1.2.4.3 5.2.7 1.2.2 5.2.4.3 1.2.4.4 5.2.4.7 Inspection level S-4, AQL 1.5 % To be applied only in the event of failure to comply with the requirements of subgroup C5 48 h duration 1.5 UC at UCT As Table 3, code B As Table
27、 3, code A As Table 3, code H As Table 3, code G As Table 3, code F Subgroup B8 CTR information5.1.11Attributes information for subgroups B1 and B2 only Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:27:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9075 N
28、023:1978 BSI 01-20005 Table 2 Test schedule Inspection BS 9070: Section 1 or Section 5 reference and conditions of test Performance requirements where not otherwise specified Group C Subgroup C1 (D) Drying Temperature coefficient and cyclic drift Solderability (with ageing) 1.2.4.1 1.2.4.10 5.2.6.2(
29、1) (To be applied on a sampling basis at three-monthly intervals.) Subgroups C2 and C4 not applicable Inspection level S-3, AQL 6.5 % Solder globule C 20 pF: 0 30 p.p.m/C C u 20 pF: 0 + 120 40 p.p.m/C u 0.3 % or 0.05 pF whichever is the greater 3 s maximum Subgroup C3 (D) Initial measurement Capacit
30、ance Damp heat (steady state) Final measurements Visual examination Capacitance Tangent of loss angle Insulation resistance 5.2.4.3 5.2.6.9 1.2.2 5.2.4.3 1.2.4.4 5.2.4.7 Inspection level S-3, AQL 6.5 % 56 days As Table 3, code B As Table 3, code A As Table 3, code E As Table 3, code G As Table 3, co
31、de F Subgroup C5 (D) Initial measurement Capacitance Endurance Damp heat, cyclic Final measurements Visual examination Capacitance Tangent of loss angle Insulation resistance 5.2.4.3 5.2.7 5.2.6.8(6) 1.2.2 5.2.4.3 1.2.4.4 5.2.4.7 Inspection level S-3, AQL 4 % 1 000 h duration, 1.5 UC at UCT 2 cycles
32、 to be conducted before final measurements As Table 3, code B As Table 3, code A As Table 3, code E As Table 3, code G As Table 3, code F Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:27:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9075 N023:1978 6 BSI
33、01-2000 Table 2 Test schedule Inspection BS 9070: Section 1 or Section 5 reference and conditions of test Performance requirements where not otherwise specified Subgroup C6 CTR information5.1.11Attributes information for subgroups C1, C3 and C5 Measurements information for subgroup C5 to be presente
34、d in grouped frequency tables showing: a) the change of capacitance resulting from the tests; b) the distribution of tangent of the loss angle and insulation resistance before and after the tests Group D Subgroup D1 (D) Initial measurement Capacitance Subgroup D1 (i) (D) Robustness of terminations R
35、esistance to soldering heat Subgroup D1 (ii) (D) Vibration Visual examination Bump Visual examination 5.2.4.3 1.2.6.1 5.2.6.2(2) 5.2.6.7 1.2.2 1.2.6.4 1.2.2 (To be applied on a sampling basis at three-yearly intervals). Subgroups D4 and D5 not applicable Inspection level S-3, AQL 4 % Minimum sample
36、size 13 50 % of the sample (minimum 7) Tensile and bending Remainder of the sample (minimum 6) 10 Hz to 2 000 Hz; 6 h; 0.75 mm or 98 m/s2 1/3 of sample in each of the three planes 4 000 10 bumps 390 m/s2 1/3 of sample in each of the three planes As Table 3, code B As Table 3, code A As Table 3, code
37、 A Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:27:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9075 N023:1978 BSI 01-20007 Table 2 Test schedule Inspection BS 9070: Section 1 or Section 5 reference and conditions of test Performance requirements where
38、 not otherwise specified Subgroup D1 (iii) (D) Rapid change of temperature Climatic sequence Dry heat Damp heat; cyclic Cold Low air pressure Damp heat, cyclic Final measurements Visual examination Capacitance Tangent of loss angle Insulation resistance 5.2.6.3 5.2.6.8 5.2.6.8(2) 5.2.6.8(3) 5.2.6.8(
39、4) 5.2.6.8(5) 5.2.6.8(6) 1.2.2 5.2.4.3 1.2.4.4 5.2.4.7 Specimens from (i) and (ii) combined 5 min 15 C to 35 C at 2 kPa Applied voltage UR for 1 min As Table 3, code A As Table 3, code E As Table 3, code G As Table 3, code F Subgroup D2 (D) Initial measurements Capacitance Endurance Damp heat, cycli
40、c Final measurements Visual examination Capacitance Tangent of loss angle Insulation resistance 5.2.4.3 5.2.7 1.2.6.8(6) 1.2.2 5.2.4.3 1.2.4.4 5.2.4.7 Inspection level S-3, AQL 4 % (minimum 13) 2 000 h duration 1.5 UC at UCT 2 cycles As Table 3, code A As Table 3, code E As Table 3, code G As Table
41、3, code F Subgroup D3 (D) Mould growth Final measurement Visual examination 5.2.6.12 1.2.2 Inspection level S-3, AQL 4 % 28 days Extent of growth u scale 2 BS 2011 2.1J No electrical measurements required Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:27:46
42、GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9075 N023:1978 8 BSI 01-2000 Table 2 Test schedule Table 3 Test requirements Inspection BS 9070: Section 1 or Section 5 reference and conditions of test Performance requirements where not otherwise specified Subgroup D6 CTR information5.1.11Attributes in
43、formation for subgroups D1, D2 and D3 Measurements information for subgroups D1 and D2 to be presented in grouped frequency tables showing: a) the change in capacitance resulting from the test; b) the distribution of the tangent of the loss angle and insulation resistance before and after the tests
44、NOTE 1Other electrical tests should not be carried out for at least 24 h after voltage proof testing. NOTE 2Subgroup B2 is to be applied at inspection level S-3, AQL 2.5 % in the event of failure to comply with the requirements of subgroup C3. CodeTitlePerformance requirements AVisual examination Th
45、ere shall be no visible damage which could reduce the usability of the product for its intended purpose BCapacitanceThe capacitance shall be within the specified selection tolerance CTangent of loss angleThe tangent of the loss angle shall not exceed the following: 0.0015 DInsulation resistanceTest
46、point A W 10 G7 or 1 000 s whichever is the lesser Test point C W 5 G7 ECapacitanceThe change of capacitance from the initial measurements shall not exceed the following: 2 % or 0.5 pF whichever is the greater FInsulation resistanceTest point A W 1 G7 or 100 s whichever is the lesser Test point C W
47、5 G7 GTangent of loss angleThe tangent of the loss angle shall not exceed the following: 0.003 HCapacitanceThe change of capacitance from the initial measurement shall not exceed the following: 1 % or 0.5 pF whichever is the greater Licensed Copy: London South Bank University, London South Bank Univ
48、ersity, Fri Dec 08 02:27:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 02:27:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9075 N023: 1978 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Ins
49、titution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguit