BS-CECC-41101-007-1985.pdf
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1、BRITISH STANDARD BS CECC 41101-007:1985 Harmonized blank detail specification for lead screw actuated non-wirewound preset potentiometers Square form, container sealed, actuating device insulated from resistive element, slipping clutch at each end of travel, rigid terminations Assessment level S Lic
2、ensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 41101-007:1985 BSI 03-2000 ISBN 0 580 35815 1 A British Standard does not purport to include all the necessary provisions of a contract. Users of British Sta
3、ndards 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 20 and a back cover. This standard has been up
4、dated (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.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:06 GMT+00
5、:00 2006, Uncontrolled Copy, (c) BSI BS CECC 41101-007:1985 BSI 03-2000i Contents Page 1Ratings and characteristics3 2Marking3 3Related documents4 4Ordering information4 5Certified test records4 6Delayed delivery4 7Additional information4 8Inspection requirements4 Appendix A Dimensional patterns14 T
6、able 1 Style reference1 Table 22 Table 32 Table 45 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:06 GMT+00:
7、00 2006, Uncontrolled Copy, (c) BSI BS CECC 41101-007:1985 BSI 03-20001 Table 1 Style reference (See Note) ELECTRONIC COMPONENTS OF ASSESSED QUALITY IN ACCORDANCE WITH CECC 41000 and CECC 41100. ISSUE 1 Form S series Dimensional Patterns see Appendix A LEAD SCREW ACTUATED PRESET POTENTIOMETERS, SQUA
8、RE FORMS. CONSTRUCTION: CONTAINER SEALED RESISTIVE ELEMENT:NON-WIREWOUND ACTUATING DEVICE:INSULATED FROM RESISTIVE ELEMENT. SLIPPING CLUTCH:AT EACH END OF TRAVEL For individual details see Table 1 and Table 2 and Appendix A. RIGID TERMINATIONS:SUITABLE FOR MOUNTING ON PRINTED WIRING BOARDS ASSESSMEN
9、T LEVEL “S” Detail specification number CECC 41101-007 Dimensional Pattern (See Appendix A) SO1A SO1B SO1C SO2A SO2B SO2C SO3A SO3B SO3C SO4A SO4B SO5A SO5B SO6A SO6B XA*B*C*D*E*F*G*H*J* YA*B*C*D*E*F*G*H*J* ZA*B*C*D*E*F* NOTEAsterisk to be replaced by the letter appropriate to the temperature charac
10、teristic (See “Ratings and Characteristics”). The style reference code show here is arbitrarily chosen and relates to this detail specification only. See the current Qualified Products List for the availability of components qualified to this detail specification. Licensed Copy: London South Bank Un
11、iversity, London South Bank University, Fri Dec 08 17:01:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 41101-007:1985 2 BSI 03-2000 Table 2 Table 3 Detail Specification Number CECC 41101-007 Climatic category Limits of resistance change (%R)Rotational noise Climatic sequence Damp heat, stead
12、y state Mechanical endurance Electrical endurance at 70 C (a c) Electrical endurance at upper category temperature (a c) Electrical endurance at 70 C (a b) Electrical endurance at upper category temperature (a b) R 100 7 Limiting slider current (mA max) X55/125/21%R: 100 7k 3 % R 4.4Continuity(See N
13、ote 4)As in 4.4 4.15Rotational noise Method B(See Table 2) 4.12Voltage proofNormal air pressure (See D.1.1) As in 4.12.5 4.8Mechanical and electrical travel (See C.1.1, C.1.2 and Note 8) Effective operating turns. 70 % of total mechanical travel GROUP B INSPECTION To be conducted on a sampling basis
14、, lot-by-lot Sub-Group B1 (Destructive)S-21,5 % 4.16Starting torqueSee C.1.3k 35 mN.m Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 41101-007:1985 6 BSI 03-2000 Table 4 (See Notes 1 and 2) Clause Numb
15、er and TestConditions of TestILAQL Performance Requirements 4.22.3Container sealing Temperature: 85 C to 90 C As in 4.22.3 Sub-Group B2 (Non-destructive)S-21,5 % 4.23.1Soldering solderability Solder bath method: Temperature: 230 10 C Duration: 2 0,5 s The terminations shall be examined for good tinn
16、ing as evidence by free flowing of the solder with wetting of the terminations Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 41101-007:1985 BSI 03-20007 Table 4 (See Notes 1 and 3) Clause Number and T
17、estConditions of Test Sample size & criterion of acceptabilityPerformance Requirements pnc GROUP C INSPECTION To be conducted on a sampling basis, at the periodicity given in column “P” Sub-Group C1 (Non-destructive)381Code 55/2020/7020/125 4.14Temperature characteristic of resistance LCT: 55 C %R:
18、k - % R UCT: + 125 C K0,750,501,05 L1,150,751,60 V1,901,252,65 4.19Locking torqueNot applicable 4.18End-stop torqueFor types fitted with slipping clutches (See C.1.3) As in 4.18.2As in 4.18.2 4.20Thrust and pull on spindle Only the thrust (5N) shall be applied during these tests. The pull is not app
19、licable. a) Half the specimens As specified in 4.20.2 ContinuityAs in 4.20.2 b) Remaining specimens As specified in 4.20.3 %: k 1 % Sub-Group C2 (Destructive)3132 7 specimens 4.21Robustness of terminations Test Ua Tensile Force: 10 N Visual examinationAs in 4.21.8 Element resistance%R: k (1 % R + 0.
20、05 7) 4.23.2Soldering Resistance to heat Test Tb of IEC 68-2-20A for potentiometers suitable for printed wiring applications: Vab Vac - - Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:01:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 41101-007:1985 8
21、 BSI 03-2000 Table 4 (See Notes 1 and 3) Clause Number and TestConditions of Test Sample size & criterion of acceptabilityPerformance Requirements pnc Method 1A Element resistance%R: k (1 % R + 0,05 7) Terminal resistance Resistance a to b and R Terminal resistance Resistance b to ck 100 7k 3 7 100
22、7k 3 % R 4.22.3Container sealing Temperature: 85 C to 90 CAs in 4.22.3 6 specimens 4.24Change of temperature (See Note 5) TA: 55 C TB:+ 125 C Visual examinationAs in 4.24.5 Output ratio %: k 1 % Element resistance%R: k (2 % R + 0,1 7) 4.26Bump (See Note 6) Acceleration: 390 m/s2 No. of bumps: 4 000
23、(See Note 7) Visual examinationAs in 4.26.3 Element resistance%R: k (1 % R + 0,05 7) or 4.27Shock (See Note 6) Pulse shape: half sine Acceleration: 490 m/s2 Pulse duration: 11 ms (See Note 7) Visual examinationAs in 4.27.3 Element resistance%R: k (1 % R + 0,05 7) Vab Vac - - Licensed Copy: London So
24、uth Bank University, London South Bank University, Fri Dec 08 17:01:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 41101-007:1985 BSI 03-20009 Table 4 (See Notes 1 and 3) Clause Number and TestConditions of Test Sample size & criterion of acceptabilityPerformance Requirements pnc 4.25Vibratio
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- BS CECC 41101 007 1985
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