This standard applies to membrane fixed resistor networks. GB/T 15882-1995 Membrane fixed resistor networks for electronic equipment Part 2: Sectional specification for membrane resistor networks with quality assessed according to the capability approval procedure GB/T15882-1995 Standard download decompression password: www.bzxz.net

GB/T 15882—1995
This standard is equivalent to the international standard IEC1045-2/QC390100:1991 "Film-fixed resistor networks for electronic equipment Part 2: Sectional specification for membrane resistor networks with quality assessed according to the capability approval procedure". The upper standard of this standard is GB/T15654—1995 "Film-fixed resistor networks for electronic equipment Part 1; General specification", which is equivalent to the international standard EC10451/QC390000:1991. By making our standards equivalent to international standards, it meets the needs of international trade, economic and technical exchanges. Appendix A, Appendix B, Appendix C and Appendix D of this standard are all appendices to the standard. Table 3 Group 1A, corresponding to 1.10 "Differential resistance temperature characteristics" \ Performance requirements \ rotten items in brackets The original text was mistakenly (2.2.22), and this standard corrected it to (2.1.2a). In Table 4A of Article 3.3.4.2, the original text under the column of assessment level \E\ omitted the sampling plan for B1 grouping. This standard supplements it according to the convention and is consistent with the blank detailed specification. It does not affect the equivalence of the standard. This standard is proposed by the Ministry of Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the Standardization Institute of the Ministry of Electronics Industry. The drafting unit of this standard: Standardization Institute of the Ministry of Electronics Industry. The main drafters of this standard: Liu Jue,
CB/T 15882—1995
IFC Foreword
1) IEC (International Electrotechnical Commission) formal resolutions or agreements on technical issues are made by technical committees with the participation of national committees that are particularly concerned about these issues, and represent the international consensus on the issues involved as much as possible. 2) These resolutions or agreements are provided for international use in the form of recommended standards and are recognized by national committees in this sense. 3) In order to promote international unification, the EC hopes that national committees will adopt IEC standard texts as their national standards when conditions permit. Standard. Differences between IEC standards and corresponding national standards should be indicated in the national standards as far as possible. Preface
This standard was prepared by IEC Technical Committee 40 (Capacitors and resistors for electronic equipment). The text of this standard is based on the following documents: "Six-month method" document
40 (Central Office) 651
Voting report
40 (Central Office) 676
"Two-month procedure\document
40 (Central Office) 708
Further information can be obtained from the relevant voting reports shown in the table above. The QC number on the cover of this standard is the specification number of the IEC electronic component quality assessment system (IECQ). Voting report
40(Central Office)737
National Standard of the People's Republic of China
Fixed film resistar networks for use in electronic equipment
Part 2: Sectional specification for film resistor networks with assessed quality on the basis of the capabillty appraval procedure
Fixed film resistar networks for use in electronic equipment Part 2. Sectional specification for film resistor networksGB/T 158821995
Idt TEC 1045-2: 1991
QC390100
of assessed quality on the basis of the capabillty appraval procedure Part I General
1 General
1.1 Scope
This standard applies to fixed film resistor networks, in which the resistor elements may be separate or interconnected in any circuit diagram. 1.2 Purpose
The purpose of this standard is to specify the preferred ratings and characteristics of this resistor network: to select the applicable capability approval procedures, test and measurement methods in the general specification GB/T15654-1995 (EEC1045-1), and to give performance requirements. The concept of preferred values ​​is directly applicable to catalog products, but not necessarily to customized products. The test severity and requirements specified in the detailed specification that refer to this sub-specification should have the same or higher performance level, because the performance level cannot be reduced.
1.3 Related documents
GB/T 2471—1996 (IEC63:1963) Resistor and capacitor priority number system Amendment No. 1 (1967)
Amendment No. 2 (1977)
GB/T15654—1995 (IEC1045-1:1990) Film fixed resistor networks for electronic equipment Part 1, general specification Fixed resistors for electronic equipment Part 1: General specification GB/T 5729—94 (IEC 115-1:1982) Fixed resistors for electronic equipment Part 6: Sectional specification: GB 7338-87 (IEC 115-6:1983)
Fixed resistor networks in which each resistor can be measured separately Fixed resistors for electronic equipment Part 7; Sectional specification: GB 12276—90 (IEC 115-7,1984)E Fixed resistor network where each resistor cannot be measured individually GB7017-86 (IEC440;1973) Method for measuring nonlinearity of resistors IEC 68 Basic environmental test procedures
IEC410 (1973) Sampling plan and procedure for counting inspection QC001001 (1986) IEC quality assessment system for electrical components (IECQ) Basic regulations QC001002 (1986) IEC quality assessment system for electrical components (IECQ) Procedure rules Note: The above documents adopt the current version, but IEC68 should adopt the version specified in the corresponding test clause of the general specification. 1.4 Contents to be given in the detailed specification
Approved by the State Administration of Supervision and Technical Supervision on December 22, 1995 and implemented on August 1, 1996
CB/T 15882-1995
Detailed specifications should be formulated in accordance with the relevant spatial detailed specifications. If possible, a brief description of the function of the network should be given. The detailed specification should not set requirements lower than those of the general specification or the sub-specification. When there are more stringent requirements, these requirements should be listed in 1.8 of the detailed specification and marked in the test list, such as with an asterisk. Note: For convenience, the contents specified in 1.4.1 and 1.4.2 can be presented in tabular form. The following contents shall be given in each detailed specification. The quoted values ​​shall be selected from the values ​​given in the corresponding clauses of this sub-specification in priority. Each detailed specification shall give the tests and measurements required for batch inspection, which shall at least include the relevant tests, methods and severities specified in this specification. The environmental tests, measurements, severities and end-of-life limit values ​​of the periodic tests shall be specified in the detailed specification for CQC. These contents shall comply with the provisions of the general specification and the corresponding parts of this specification. 1.4.1 Appearance drawing and size
There should be a network diagram as an auxiliary means for easy identification and comparison with other networks. Dimensions affecting interchangeability and mounting and their associated tolerances shall be given in the detail specification. All dimensions shall preferably be given in millimeters, but if dimensions are given in inches, the metric dimensions shall be added in millimeters. The length, width, height and spacing of the terminals shall normally be given. For cylindrical products, the diameter and length of the body and the diameter of the terminals shall be given.
Where necessary, for example, when more than one package is included in the detail specification, the dimensions and their associated tolerances shall be placed in the table below the figure. If the construction is different from the above, the detail specification shall give dimensional information sufficient to describe the resistor network. 1.4.2 Mounting
The detail specification shall specify the method of mounting to be used in normal use and during vibration, collision and shock tests. The resistor network shall be mounted in the normal manner. The design of the resistor network may require special mounting fixtures for its use. In this case, such mounting fixtures shall be described in the detail specification and shall be used during vibration, collision or shock tests. 1.4.3 Variety (GB/T5729-94 Article 2.2.3) For this specification, the variety is usually represented by a letter arbitrarily selected according to the size factor instead of the detailed specification. Therefore, unless the detailed specification number is also given, the variety name has no meaning. 1.4.4 Rated values ​​and characteristics
Rated values ​​and characteristics shall be in accordance with the relevant provisions of the specification and shall be as follows. 1.4.4.1 Nominal resistance
See 2.3.1. The preferred value is the E series value of GB/T2471. Note: If the product approved according to the detailed specification is not in accordance with the resistance range of the detailed specification, the following statement should be added: "The range of resistance values ​​available for each variety is given in the qualified product list".
1.4.5 Marking
The detailed specification shall specify the marking content on the network and basic packaging. The detailed specification shall specifically state the differences with Article 2.4 of the general specification. 1.4.6 Ordering information
The detailed specification shall give the following information required when ordering the resistor network: a) Circuit type (for example, thick film resistor network). b) Detailed specification number and version number, and when applicable, also include the variety number and evaluation level. () Function of the circuit, if applicable.
) Basic functional characteristics and tolerances, if applicable. 1.4.7 Additional content (not inspected)
The detailed specification may include content that does not need to be inspected according to the inspection procedure, such as circuit diagrams, curves, graphics and necessary explanations of the detailed specification.
Part II
2 Preferred ratings, characteristics and test severities 2.1 Preferred characteristics
GB/T 15882—1995
Preferred ratings, characteristics and test severities The characteristic values ​​given in the detail specification shall be selected from the following provisions in priority. 2.1.1 Preferred climatic categories
The resistor networks included in this specification are classified into climatic categories in accordance with the general provisions of IEC 68-1. The lower and upper category temperatures and the duration of the steady-state damp heat test shall be selected from the following values: Lower category temperature; -55℃, -40℃ and -25℃. Upper category temperature: 85℃, 100℃, 125℃ and 155℃, and the duration of the steady-state heat test: 4t, 10 d; 21d and 56d. The severity of the cold and dry heat tests is the lower and upper category temperatures, respectively. For some resistor networks, this temperature may be between the two preferred temperatures given in IFC68-2 due to the original structure. In this case, the severity should be selected closest to the preferred temperature within the actual range of the resistor network.
2.1.2 Resistance temperature coefficient and resistance temperature characteristics Table 1 gives the preferred limit values ​​of resistance change during the resistance temperature characteristics test. Each row in Table 1 gives the preferred temperature coefficient and the corresponding temperature characteristics of 20℃ to 70℃, as well as the resistance change limit values ​​when measuring the resistance temperature characteristics in the category temperature range of Article 2.1.1 of this sub-specification (see Article 4.10 of GB/T15654-1995). 1
20C--70℃
Temperature coefficient
10-°/C
Temperature characteristics
=1- 25
Resistance temperature durability (resistance change percentage limit) Reference temperature/down category temperature
20/-55
= 1- 88
20/—401
2.1.2a Differential resistance temperature characteristics The differential temperature coefficient optimum limits are given in Table 1a.
20/—25
—0. 98/
Reference temperature/upper category temperature
20/101
20/125
=2- 62
±0-525
20/155
±0- 675
±0338
20～70
Differential temperature coefficient!
Differential resistance
Stability characteristics
2.1.3 Resistance change limits
CB/T15882—1995
Differential resistance temperature characteristics, %
Base temperature/lower category temperature
Base temperature/upper category temperature
20/—55
20/—40
20/-25
20/100
±0,04
20/125
20/155
=0. 135
For each stability grade, the resistance change limits of any single resistor element when performing each of the tests listed in the header of Table 2 are as shown in the table.
Note: The case number in the header of Table 2 can be found in GB/T15654-1995. Table 2
Long-term test
Stability
Differential resistance change
4.19 Climate sequence
4.20 Steady-state wet combustion
4.21.170℃ durability
4.21.2 Upper limit category temperature durability
±(10%+0.50)
±(5%+0.10)
2(2%+0.1)
1(1%+0.052)
±(0.5%+0.050)
±(0.25%+0.050)
=((.1%+0. 010)
The preferred limits of the differential resistance change are: ±0.1%, ±0.25%, ±0.5%, ±1%. 2.2 Functional CharacteristicsWww.bzxZ.net
1.12 Overload
Short-term test
4.13 Terminal strength
4.15 Resistance to soldering heat
4.16 Rapid temperature change
4.17 Shock
4.18 Vibration
+(2%!0.10)
-(1% ..0.050)
±(0. 5% +0. 051)
+(0.25%+0. 050)
±(0. 1% - 0. 010)
±(0. 05%+0. 012)
t (0. 02%[0. 010)
It should be noted that such characteristics vary with the function. Details of the functional characteristics such as voltage divider ratio, characteristic impedance, attenuation, etc. should be given in the relevant detailed specifications.
2.3 Preferred rated values
2.3.1 Nominal resistance
GB/R 15882—1995
See GB/T 15651—1995 Section 2.2.15 2.3.2 The allowable deviation of nominal voltage value
±10%, ±5%, ±2%±1%, +0.5%, ±0.25% and ±0.05%. 2.3.2a The allowable deviation of resistance ratio
The preferred allowable deviation of nominal positive value ratio is: ±0.05%, ±0.1%, +0.25%, ±0.5% and ±1%. 2.3.3 Rated power consumption
The preferred value of rated power consumption at 70℃ is:
For network: 0.125W.0.25W, 0.5W, 1W , 1.5W, 2W and 4W. For deca resistors: 0.05W, 0.10W, 0.25W, 0.5W and 1W. The detailed specification shall specify the rated power dissipation applicable to each resistor element in the network and the total maximum permissible power dissipation of the network. The derated power dissipation values ​​for temperatures exceeding 70°C shall be as shown in the following curve:100
Recommended operating area
Category temperature
Category density
The detailed specification may give a larger operating area, but it must include all the areas given above. In this case, the detailed specification shall give the maximum permissible power dissipation at temperatures other than 70°C. All inflection points on the curve shall be confirmed by tests. 2.3.4 Component limiting voltage
The preferred values ​​of component limiting voltage are:
10V, 15V, 25V, 35V, 50V, 100V and 500V DC or AC effective value, 2.3.5 Insulation voltage between each resistor element (when applicable) The insulation voltage value between each resistor element shall be specified in the detailed specification. 2.3.6 Insulation resistance between each resistor element (when applicable) Unless otherwise specified in the detailed specification, the minimum insulation resistance between each resistor element shall be 1G2. 2.4 Preferred test severity
The test severity specified in the detailed specification shall be selected from the following provisions in priority. 2.4.1 Drying
Procedure I of Article 4.3 of GB/T 15654-1995 shall be adopted. 2.4.2 Vibration
GB/T15654:1995 Section 4.18 and the following specifications apply Frequency range: 10 Hz to 500 Hz.
Amplitude: 0.75 nt or 98 tn/s* (whichever is less severe). Duration of vibration: Total duration 6 h. GB/T15882-1995
The detailed specification shall specify the installation method used (see 1.4.2). The detailed specification shall specify the electrical measurements to be made during vibration to check for intermittent contact, open circuit or short circuit. 2.4.3 Low pressure
GB/T15654-1995 Article 4.19.5 and the following rules: Pressure: 8. 5 kPa (85 mbar).
2.4.4 Overload
GB/T15651-1995 Article 4.12 and the following rules The detailed specification shall specify which leads shall be overloaded and the overload value to be applied between these leads. 2.4.5 70℃ durability
GB/T15G54-1995 Article 4.21.1 and the following rules: If necessary, the detailed specification shall specify how to apply load to the network. 2.4.6 Insulation resistance between adjacent resistor elements (when applicable) GB/T15654--1995 Article 4.8.
2.4.7 Withstand voltage between adjacent resistor components (when applicable) GB/T15654-1995 Article 4.9 and the following rules: A withstand voltage test should be carried out between each insulating component and all other components connected together. 2.4.8 Terminal strength
GB/[15654-1995 Article 4.13 and the following rules should be tested Ual.
Part III Capability Approval Procedure
3 Capability Approval Procedure
B/T15654-1995 Article 3.7 and the following rules; 3.1 Selection of Capability Qualification Circuit (CQC)
3.1.1 Approval TestThe total number of qualified products shall not exceed 1. Detailed size and qualified judgment number
(see Note 2)
Performance requirements
(see Note 1)
AR/RS% or
α:_10*/c
AR/RS_% or
a:_10-/c
A(RTC)≤±_%
(see 2.1.2n)
A(RTC)≤±_%
(see 2.1.2a)
According to 4.12.3
AR-(_%R+_0)
According to 4.15.3
AR≤1(_%R-_0)
According to 4.18.4 Article
AR≤±(_%R+_Q)
Article number and test items
(See Note 13
First cycle
Low pressure
— Cyclic damp heat, test Db,
Remaining cycles
4.20 Steady damp heat
Half of the 3 groups of samples
1.21.170C Durability
GB/T15882—1995
Table 3 (continued)
Test conditions
(See Note 1)
B-5 kPa(85 mbar)
Appearance inspection
Insulation resistance between resistor elements (when applicable) see 2.4.6 of this specification
Withstand voltage between resistor elements (when applicable) see 2.4.7 of this specification
Appearance inspection
Differential resistance change (when applicable)
Appearance inspection
Insulation resistance between resistor elements (when applicable) see 2.4.6 of this specification Item
Withstand voltage between resistor elements (when applicable) See Item 2.4.7 of this specification
See Item 2.4.5 of this specification
Duration: 1000h
At 48h, 500h and 1000h
Inspection:
Visual inspection
Insulation resistance between resistor elements (when applicable) See Item 2.4.6 of this specification
Differential resistance change (when applicable)
Sample size and qualified judgment number
(See Note 2)
Performance requirements
(See Note 1)
According to 4.19. 8 items
AR≤±(_%R+_Q)
R≥160
Press 4.9 items
Press 4. 19.8 items
AR+(_R+_a)
According to 4.20.4 items
AR&±(_%R+_0)
R≥IGA
According to 4. 21. 1.7 items
AR=(_%R+_n)
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