1、BRITISH STANDARD CONFIRMED APRIL1986 BS9751 N0001:1980 Detail specification for fixed insulated (unshielded) radio frequency inductors Wire wound on ferrite, iron dust or phenolic cylindrical former Full assessment level UDC 621.318.43.092.5BS9751N0001:1980 BSI04-2000 Committee reference ECL/18 ISBN
2、 0 580 11215 2 A British Standard does not purport to include all the necessary provisions of a contract. Users 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 docu
3、ment comprises a front cover, an inside front cover, pagesi andii, pages1 to13 and a back cover. This standard 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
4、Amd. No. Date CommentsBS9751N0001:1980 BSI 04-2000 i Contents Page 1 Ratings and characteristics 2 2 Marking of the part and package 2 3 Related documents 2 4 Ordering information 3 5 Certified test records 3 6 Delayed delivery 3 7 Additional information (not for inspection purposes) 3 8 Inspection
5、requirements 3 Figure 1 Derating curve 2 Table 1 Dimensions and ratings 1 Table 2 Electrical characteristics 11ii blankBS9751N0001:1980 BSI 04-2000 1 Table 1 Dimensions and ratings The range of values available in each pattern is given in PD9002. ELECTRONIC COMPONENTS OF ASSESSED QUALITY DETAIL SPEC
6、IFICATION IN ACCORDANCE WITH BS9751:1979 MANUFACTURERS TYPE NUMBER SeePD9002 Outline and dimensions. Third angle projection For ordering information seeclause4 INDUCTORS RADIO FREQUENCY STYLE INSULATED (UNSHIELDED) TYPICAL CONSTRUCTION: WIRE WOUND ON FERRITE, IRON DUST OR PHENOLIC CYLINDRICAL FORMER
7、 For values of dimensions seeTable 1 All dimensions inmm Marking information, seeclause2 FULL ASSESSMENT Pattern Rated dissipation (W at70 C) Isolation voltage V d.c. or a.c. peak Dimensions L max. D max. l min. d min. d nom. d max. A B C D E F 0.16 0.20 0.20 0.20 0.25 0.33 700 700 700 700 700 700 7
8、 9.9 10 10 12 25.5 2.7 4.2 3.9 4.5 5.6 8.0 25 25 25 25 25 25 0.45 0.55 0.55 0.55 0.55 0.65 0.50 0.65 0.60 0.60 0.65 0.70 0.55 0.70 0.66 0.66 0.70 0.77 Refer to Qualified Products List PD9002 for details of manufacturers approved to this specificationBS9751N0001:1980 2 BSI 04-2000 1 Ratings and chara
9、cteristics 1.1 Derating. The inductors covered by this specification shall be derated in accordance with Figure 1. 2 Marking of the part and package The marking of the part and package shall be in accordance with the requirements of1.1.6 of BS9750. 3 Related documents BS2488, Schedule of preferred n
10、umbers for the resistance of resistors and the capacitance of capacitors for telecommunication equipment. BS4849, 1,1,2- trichlorotrifluoroethane (R113). BS6001, Sampling procedures and tables for inspection by attributes. BS9000, General requirements for electronic components of assessed quality. B
11、S9750, Specification for fixed r.f. inductors of assessed quality: generic data and methods of test. PD9002, BS9000 Component selection guide. Inductance range: The preferred values are those of the E12 series of BS2488:1966 (IEC63). Where the use of intermediate values is essential they should be c
12、hosen from the E24 series of that document Standard selection tolerance: 10% Environmental classification: 55/100/21 Bump severity: 390m/s 2 ;4000 bumps total Vibration severity: 10Hz to500Hz: amplitude0.75mm or acceleration98m/s 2(whichever is less severe); of3h duration in each of2 planes one of w
13、hich shall be parallel to the axis of winding Low air pressure: 8.5kPa(85mbar) Limits of change after1000h endurance test: inductance 5% Q factor ) ) self resonant frequency ) Conforming to Table2A to Table2F as applicable ) d.c. resistance ) Temperature coefficient of inductance: 0 125 10 6 / C ove
14、r the range20 C to70 C Figure 1 Derating curveBS9751N0001:1980 BSI 04-2000 3 4 Ordering information Orders for inductors covered by this specification shall contain the following information (in accordance with1.1.15 of BS9750): a) value of rated inductance; b) selection tolerance of rated inductanc
15、e; c) number of this detail specification, i.e.BS9751 N0001; d) pattern. 5 Certified test records Certified test records shall be prepared in accordance with1.1.11 of BS9750 and shall be presented in the format given in Appendix C of that document. 6 Delayed delivery The provisions of1.1.9 of BS9750
16、 shall apply. 7 Additional information (not for inspection purposes) Not applicable. 8 Inspection requirements 8.1 When drying is called for, procedure1 of1.2.5.1 of BS9750 shall be used. 8.2 The uncertainty associated with the inductance measuring equipment used in the tests referred to in this spe
17、cification shall meet the requirements of1.2.5.2 of BS9750. 8.3 All test equipment uncertainty is additive to each specified requirement. 8.4 There shall be a satisfactory balance between high and low inductance values in the sample taken (seeAppendix B of BS9750). 8.5 Samples submitted to tests tha
18、t are marked “D” shall not be accepted for release under BS9000 (see2.6.5 of BS9000-1). 8.6 Where a subgroup contains more than one test, the tests shall be carried out in the order given in the test schedule. Inspection D or ND (seenote2) BS9750:1978 reference and condition of test IL AQL Performan
19、ce requirements (BS9750 reference unless otherwise specified) (seenote1) Group A To be conducted on a sampling basis lot by lot. Subgroup A2 not applicable. A0 tests carried out prior to formation of inspection lots Subgroup A0 Inductance Q factor ND 1.2.5.2.2 1.2.5.3; test fixture: TF-A for pattern
20、s A-E TF-B for pattern F 100% In accordance with Table 2 of this detail specification Subgroup A1 Visual examination Inductance Q factor ND 1.2.3 1.2.5.2.2 1.2.5.3; test fixture: TF-A for patterns A-E TF-B for pattern F S4 1.0% 1.2.3 In accordance with Table 2 of this detail specificationBS9751N0001
21、:1980 4 BSI 04-2000 Inspection D or ND (seenote2) BS9750:1978 reference and condition of test IL AQL Performance requirements (BS9750 reference unless otherwise specified) (seenote1) Subgroup A3 Self resonant frequency D.C. resistance ND 1.2.5.4.1 1.2.5.5, at 20 C S4 1.0% In accordance with Table 2
22、of this detail specification In accordance with Table 2 of this detail specification Subgroup A4 Voltage proof ND 1.2.5.7, mounted as in1.2.5.6.1 S4 2.5% 1.2.5.7 Subgroup A5 CTR information 1.1.11 Attributes information subgroups A1, A3 and A4 Group B To be conducted on a sampling basis, lot by lot.
23、 Subgroups B3, B4, B5, B6 and B7 not applicable Subgroup B1 Dimensioning and gauging ND 1.2.4; thickness of test plate to be1.5 0.05mm S4 1.0% In accordance with Table 1 of this detail specification Subgroup B2 Robustness of terminations Final measurements: Visual examination Inductance Q factor Sol
24、dering (solderability) Climatic sequence: Dry heat Cold Low air pressure D Seenote3 1.2.7.1; tests: Ua tensile Ub bending Uc torsion 1.2.7.1 (e) 1.2.5.2.2 1.2.5.3 1.2.7.2; temperature for(a) to be230 10 C 1.2.7.6; procedure3 of test Z/ABDM 100 C 55 C 8.5kPa(85 mbar) S3 2.5% 1.2.7.1 (e) %L u 2% In ac
25、cordance with Table 2 of this detail specification 1.2.7.2 (a)BS9751N0001:1980 BSI 04-2000 5 Inspection D or ND (seenote2) BS9750:1978 reference and condition of test IL AQL Performance requirements (BS9750 reference unless otherwise specified) (seenote1) Subgroup B2 (contd) Final measurements: Visu
26、al examination Inductance Q factor Insulation resistance D Seenote3 1.2.7.6 1.2.5.2.2 1.2.5.3 1.2.5.6 S3 2.5 % 1.2.7.6 %L u5% In accordance with Table 2 of this detail specification 200M7 minimum Subgroup B8 CTR information 1.1.11: The attributes information for the conditioning tests in subgroups B
27、1 and B2 is without reference to the parameter for which rejection was made Group C To be conducted on a sampling basis, at the periodicity given in column P. Subgroups C1, C2 and C4 not applicable Inspection D or ND (seenote2) BS9750:1978 reference and condition of test P n c Performance requiremen
28、ts (BS9750 reference unless otherwise specified) (seenote2) Subgroup C3 Resistance to soldering heat Final measurements: Visual examination Inductance Q factor Bump Final measurements: Visual examination Inductance Q factor D 1.2.7.2(b) Recovery time0.5h to1h 1.2.3 1.2.5.2.2 1.2.5.3 1.2.7.4 Severity
29、390m/s 2 Duration4000 bumps total 1.2.7.4 1.2.5.2.2 1.2.5.3 3 20 1BS9751N0001:1980 6 BSI 04-2000 Inspection D or ND (seenote2) BS9750:1978 reference and condition of test P n c Performance requirements (BS9750 reference unless otherwise specified) (seenote2) Subgroup C5 Endurance Intermediate and fi
30、nal measurements: Visual examination Inductance Q factor Self resonant frequency D.C. resistance Final measurement only: Insulation resistance D 1.2.8 1.2.8 1.2.5.2.2 1.2.5.3 1.2.5.4.1 1.2.5.5;20 C 1.2.8 3 20 1 1.2.8 %L u5% In accordance with Table 2 of this detail specification 200M7 minimum Subgro
31、up C6 CTR information 1.1.11 Attributes information in subgroups C3 and C5. Measurement information for inductance at the prescribed intervals in subgroup C5 Group D To be conducted on a sampling basis, at the periodicity given in column “P” Subgroups D2 and D5 not applicable. (Seealso note4.) Subgr
32、oup D1 Rapid change of temperature Final measurements: Visual examination Inductance Q factor Vibration D 1.2.7.3 Upper category temp. 100 C; lower category temp. 55 C. Recovery period0.5h to1h. Single chamber test 1.2.7.3 1.2.5.2.2 1.2.5.3 1.2.7.5 Frequency range10Hz to500Hz. Amplitude of0.75mm or
33、acceleration of98m/s 2whichever is less severe;3h duration in each of2 planes, one of which shall be parallel to the axis of winding 36 20 1 1.2.7.3 %L u5% In accordance with Table 2 of this detail specificationBS9751N0001:1980 BSI 04-2000 7 Inspection D or ND (seenote2) BS9750:1978 reference and co
34、ndition of test P n c Performance requirements (BS9750 reference unless otherwise specified) (seenote2) Subgroup D1 contd Final measurements: Visual examination Inductance Q factor Climatic sequence: Dry heat Cold Low air pressure Final measurements: visual examination Inductance Q factor Insulation
35、 resistance D 1.2.7.5 1.2.5.2.2 1.2.5.3 1.2.7.6: procedure3 of test Z/ABDM 100 C 55 C 8.5kPa(85mbar) 1.2.7.6 1.2.5.2.2 1.2.5.3 1.2.5.6 36 20 1 1.2.7.5 %L u 2% In accordance with Table 2 of this detail specification 1.2.7.6 %L u 5% In accordance with Table 2 of this detail specification 200M7 minimum
36、 Subgroup D3 Overload Final measurements: Visual examination Inductance Q factor D 1.2.5.11 Duration0.1h at1.5times rated d.c. current 1.2.5.11 1.2.5.2.2 1.2.5.3 36 8 1 1.2.5.11 %L u 2% In accordance with Table 2 of this detail specification Subgroup D4 Resistance to solvents Final measurements: Vis
37、ual examination Inductance Q factor Flammability D 1.2.7.11: Immersion in1,1,2 trichlorotrifluoroethane to BS4849 at its boiling point, for5min. Recovery period24h 1.2.7.11 1.2.5.2.2 1.2.5.3 1.2.7.10.1;60s duration 36 8 0 1.2.7.11 %L u 5% In accordance with Table 2 of this detail specification 1.2.7
38、.10.1BS9751N0001:1980 8 BSI 04-2000 Inspection D or ND (seenote2) BS9750:1978 reference and condition of test P n c Performance requirements (BS9750 reference unless otherwise specified) (seenote2) Subgroup D6 Damp heat steady state (seenote4) Final measurements: Visual examination Inductance Q fact
39、or Insulation resistance D 1.2.7.7 21 days no load 1.2.7.7 1.2.5.2.2 1.2.5.3 1.2.5.6 12 20 1 1.2.7.7 %L u5% In accordance with Table 2 of this detail specification 200M7 minimum Subgroup D7 CTR information 1.1.11: Attributes information for the tests in subgroups D1, D3, D4 and D6. Information is no
40、t required as to the individual conditioning tests for which rejection was made Measurement information for inductance and Q factor in subgroup D6 shall be included NOTE 1Inspection Levels (IL) and Acceptable Quality Levels (AQLs) are selected from BS6001. NOTE 2In this table: D ND P n c = = = = = D
41、estructive test Non-destructive test Periodicity (in months) Sample size Acceptance criteria NOTE 3Subgroup B2 is to be applied at inspection level S3 and AQL1.5% in the event of a failure to meet the requirements of subgroup D6. NOTE 4Samples for group D are to be taken such that there is an approx
42、imately equal quantity of high, medium and low inductance values. The “medium” value is to be the preferred value nearest to the logarithmic mean. Where an initial qualification approval is involved, the “low” value is to be the lowest inductance value for which approval is sought and the “high” val
43、ue is to be the highest value for which approval is sought.BS9751N0001:1980 BSI 04-2000 9 Table 2 Electrical characteristics 2A: Inductors: pattern A Inductance 4H 10% Q minimum Test frequency MHz Self resonant frequency minimum MHz D.C. resistance maximum 7 Rated current mA 0.10 0.12 0.15 0.18 0.22
44、 0.27 0.33 0.39 0.47 0.56 0.68 0.82 1.00 1.20 1.50 1.80 2.20 2.70 3.30 3.90 4.70 5.60 6.80 8.20 10.0 12.0 15.0 18.0 22.0 27.0 33.0 39.0 47.0 56.0 68.0 82.0 100 120 150 180 220 270 330 390 470 35 35 35 35 33 33 30 30 30 30 28 28 25 25 28 30 30 37 45 45 45 50 50 55 55 45 45 50 50 50 45 45 45 45 50 50
45、50 30 30 30 30 30 30 30 30 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 625 590 550 500 470 400 380 350 310 280 250 230 210 140 130 115 105 92 8
46、3 73 69 60 55 50 46 37 32 28 23 18 20 19 17 15 13 12 11 10 9 8.5 7.5 6.8 6.0 5.5 5.1 0.08 0.09 0.10 0.12 0.14 0.16 0.22 0.30 0.35 0.50 0.60 0.85 1.00 0.18 0.22 0.30 0.40 0.55 0.85 1.00 1.20 1.80 2.00 2.70 3.70 2.70 2.80 3.10 3.30 3.50 3.40 3.60 4.50 5.70 6.70 7.30 8.00 13.0 15.0 17.0 21.0 25.0 28.0
47、35.0 42.0 1240 1170 1110 1010 940 880 750 640 590 495 450 380 350 830 750 640 550 470 380 350 320 260 250 215 180 215 210 200 195 188 190 185 165 148 136 130 124 97 91 85 77 70 66 59 54BS9751N0001:1980 10 BSI 04-2000Table 2Electrical characteristics Inductance 4H 10% Q minimum Test frequency MHz Sel
48、f resonant frequency minimum MHz D.C. resistance maximum 7 Rated current mA 560 680 820 1000 30 30 30 30 0.79 0.79 0.79 0.79 4.2 3.4 3.2 2.9 46.0 60.0 65.0 72.0 52 45 43 41 2B: Inductors: pattern B 0.15 0.18 0.22 0.27 0.33 0.39 0.47 0.56 0.68 0.82 1.00 1.20 1.50 1.80 2.20 2.70 3.30 3.90 4.70 5.60 6.
49、80 8.20 10.0 12.0 15.0 18.0 22.0 27.0 33.0 39.0 47.0 56.0 68.0 82.0 100 120 150 180 220 270 50 45 50 45 45 45 45 50 50 50 50 33 33 33 33 33 33 33 33 45 50 50 55 65 65 75 75 60 65 60 55 55 55 50 50 65 65 65 65 65 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 0.79 0.79 0.79 0.79 0.79 472 405 405 350 325 295 280 252 225 198 180 162 142 135 121 108 100 90 81 54 50 45 40 38 36 30 27 22.5 17 13 11.5 11.0 10.0 9.2 8.5 7.8
