IEC 61248-7:1997 pdf download – Transformers and inductors for use in electronicand telecommunication equipment – art 7: Sectional specification for high-frequency inductors and intermediate frequency transformers on the basis of the capability approval procedure

IEC 61248-7:1997 pdf download – Transformers and inductors for use in electronicand telecommunication equipment – art 7: Sectional specification for high-frequency inductors and intermediate frequency transformers on the basis of the capability approval procedure.
This part of lEG 61248 specifies how to prepare detail specifications for high-frequency inductors and Intermediate frequency transformers between 10 kHz and 2 GHZ for use in electronic and telecommunicahon equipment to be released under the terms of IEC 61248-1 (DC 260000) capability approval. It includes a blank detail specification (BDS), which shows the format and indicates which tests are considered to be appropriate to this type of component, although the final selection of tests to be included in the inspection schedule is at the discretion of the specIfication writer It also lists appropriate ratings and characteristics.
The components covered by this part of IEC 61248 are essentially concerned with high- frequency inductors and intermediate frequency transformers of signals which are mainly used br electronic equipment.
2 Normative references
The following normative documents contain provisions, which, through reference in this text. constitute provisions of this part of IEC 61248. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this part ol IEC 61248 are encouraged to investigate the possibility of applying the most recent editions of the normative documents listed below. Members of IEC and ISO maintain registers of currently valid International Standards.
IEC Guide 102: 1996 Eløctrontc components — Specification structures br quality assessment (Qualification approval and capability approval)
IEC DC 001001: 1986, BasIc rules of the IEC Quality Assessment System for Electronic
Componenls(IECO)
Amendment 2 (1994)
IEC DC 001002: 1986. Rules of procedure of the IEC Quality Assessment System for
Electronic Components (IECQ)
Amendment 2 (1994)
lEG DC 001004: Specifications list
IEC OC 001005: Register of firms, products and services appoved under the IECO System. including ISO 9000
IEC 600682-2: 1974, Environmental testing — Part 2: Tests — Tests B: Dry heat
lEG 60068-2-3: 1969, Environmental testing — Part 2: Tests — Test Ca: Damp heat, steady state
lEG 60068-2-6:1995, Environmental testing — Part 2: Tests — Test Fc: Vibration (sinusoidal)
lEG 60068-2• 14: 1984. Environmental testing — Part 2: Tests — Test N: Change of temperature Amendment 1 (1986)
IEC 60068-2-20: 1979, Environmental testing — Part 2: Tests — Test T: Soldering Amendment 2 (1987)
IEC 60068-2-21: 1983, Environmental testing — Part 2: Tests — Test U: Robustness of
terminations and integral mounting devices
Amendment 2 (1991)
Amendment 3 (1992)
IEC 60068-2-27: 1987, Environmental testing — Part 2: Tests — Test Ea and guidance: Shock lEG 60068-2-29: 1987, Environmental testing — Part 2: Tests — Test Eb and guidance: Bump lEG 60410:1973, Sampling plans and procedures for inspection by attributes
IEC 61007: 1994, Transformers and inductors for use in electronic and telecommunication equipment — Measurement methods and test procedures
IEC 61248-1: 1996, Transformers and inductors for use in electronic and telecommunication equipment — Part 1: Generic specification
ISO 128:1982, Technical drawings — General principles of presentation
ISO 129: 1985, Technical drawings — Dimensioning — General principles, definitions, method of
execution and special indications
3 Preparation of the detail specification
This standard is intended to be used for the preparation of detail specifications for high- frequency inductors and intermediate frequency transformers released under the terms of the IEC 61248-1 (QC 260000) capability approval procedure.
It is intended for use by the following originators:
a) a customer wishing to procure high-frequency inductors and intermediate frequency transformers that are within the scope of the approved capability of his supplying component manufacturer, e.g. for detail specifications (DS):
b) a capability approved manufacturer of high-frequency inductors and intermediate frequency transformers wishing to prepare specifications for his own products which are within the scope of his capability approval.
NOTES
1 The detail specification should take the form of the BDS shown In clause 5, particularly In respect of the front page format and, In principle, In respect of Ihe presentation of the inspection requirements.
2 Unless otherwise specified, all the tests shown in the BDS. with the exception of the rotating torque. characteristic under pressure, strength of adjusting mechanism, resonance frequency and inductance tests given in annex A, are taken from lEG 61007. Those shown underlined concern operating characteristics of fundamental importance and it is strongly recommended that these are selected by the specification writer for inclusion in the detail specification, The tests shown in plain type are listed for the convenience of the specification writer, and tests should be selected from them according to the particular application of the component.