GB 5076-1985 Dimensional measurement of cylindrical components with two axial leads

This standard is equivalent to the international standard IEC 294 (1969) "Dimensional measurement of cylindrical components with two axial lead-out terminals". This standard applies to cylindrical capacitors and resistors with two axial lead-out terminals used in electronic equipment. GB 5076-1985 Dimensional measurement of cylindrical components with two axial lead-out terminals GB5076-1985 Standard download decompression password: www.bzxz.net

UDC 621.316.8 +621.319.4:531.7GB
National Standard of the People's Republic of China
GB5076-85
Measurement of the dimensions of a cylindricalcomponent having two axial terminationsPublished on April 16, 1985
Implemented on December 1, 1985
Approved by the State Bureau of Standards
National Standard of the People's Republic of China
Measurement of the dimensions of a cylindricalcomponent having two axial termiagtionsUDC 621.316.8
+621.819.4
GB5076-85
This standard is equivalent to the international standard IC294 (1969) "Dimensional measurement of cylindrical components with two axial lead terminals". Scope
This standard applies to cylindrical capacitors and resistors with two axial lead terminals used in electronic equipment. 2 Purpose
The purpose of this standard is to provide a method for measuring component dimensions. Chapter 3 provides a method for measuring the length of the component body and the length of the lead terminal. The maximum length of the lead terminal covered by the coating material is determined by the method specified in Chapter 4. Chapter 5 provides a gauge for checking the diameter over the entire length.
Note: The traceability method for components with non-axial lead terminals is under consideration. 3 Length
The length of the body is measured by inserting the two lead terminals into the rectangular holes (or holes) of the two gauge plates, and moving the two gauge plates in parallel until the component body or the lead terminals are clamped and measured without deformation. If the measurement error caused by the size of the gauge plate and the distance between the component and the measuring base device does not exceed 0.2mm, it can be considered that the two gauge plates are close enough to parallel. A set of gauge plates can be divided into the following types:Www.bzxZ.net
3.1 The most standard plate for components with axial linear lead-out terminals (except for the components described in Article 3.2) 0.20±0.05
Enlargement A
The length of the component body is equal to the measured length L1, and the length of the lead-out terminal is equal to Lz. The relationship between the width of the rectangular hole W (or the diameter of the hole) of the gauge plate and the diameter of the lead-out wire is listed in the following table: Issued by the State Bureau of Standards on April 16, 1985
Implementation on December 1, 1985
Nominal diameter of the lead-out wire
>0.45~<0.70
>0.70~<.0.90| |tt||>0.90~<1.15
>1.15~<1.32
>1.32~<2.00
GB5076—85
Width of rectangular hole in gauge plate
±0.02mm*
3.2 Gauge plate for axial lead-out components with diameter greater than or equal to 5mm and glass-metal seal or lead-out with abrupt point
Enlargement A
If there is a sudden point on the three-out line, such as an external solder joint on the lead of the component and the component has a glass seal, the thickness of the gauge plate is insignificant in the length measurement. The length of the component should be the distance between the inner surfaces of the two gauge plates (L,), and the length of the lead-out end is equal to L2.
The width of the long hole (or the diameter of the hole) of the gauge plate should be 4.00±0.02mm. NOTE: This tolerance is maintained only where the terminals touch during the test. Maximum length of terminals covered by coating material When the component terminals are inserted into the holes of the gauge plate and clamped as specified in 3.1, the coating material should not protrude outside the gauge plate. The gauge plate thickness T should be specified in the relevant data. NOTE: The recommended value for components used on single-sided printed wiring boards is 1.50 ± 0.05 mm, and for components used in other applications it is 4.00 ± 0.05 mm. Method of checking the diameter over the entire length
For a given diameter, the component shall pass through a straight tube gauge with an inner diameter equal to the specified maximum body diameter + 0.1 mm, a tolerance of + 0.05 mm, and a length equal to the specified maximum length of the component body. The component shall pass through the gauge under its own weight. * This tolerance is maintained only where the terminals touch during the test. 2
GB 5076-85
When the maximum diameter of a component is given by the manufacturer, irregular body shapes such as bends, resistor caps, and lead coils as part of ceramic capacitor leads should be taken into account. Additional remarks:
This standard was proposed by the Ministry of Electronics Industry of the People's Republic of China. This standard was drafted by the Standardization Department of the Ministry of Electronics Industry.
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