Replaced by JB/T 5835-2005 JB/T 5835-1991 Gate assemblies for power semiconductor devices JB/T5835-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Gate Assemblies for Power Semiconductor Devices
Subject Content and Scope of Application
This standard specifies the models, dimensions, technical requirements and inspection rules for gate assemblies for power semiconductor devices. This standard applies to gate assemblies for power semiconductor devices (hereinafter referred to as assemblies): Reference Standards
GB2423.2 Basic Environmental Test Procedures for Electric and Electronic Products Test B: High Temperature Test Methods GB2423.10 Basic Environmental Test Procedures for Electric and Electronic Products Test Test Fc: Report vibration (sine) test complies with GB2423.22 Basic environmental test procedures for electric and electronic products: Test N: Temperature change test method
GB1958
Shape and position tolerance detection regulations
Model and overall dimensions
Indicates the height of the assembly (H)
Indicates the maximum outer diameter of the assembly (D)
Indicates the gate assembly
3.2 Overall dimensions and deviations
The overall dimensions and deviations of the assembly shall comply with the requirements of Figure 1 and Table 1. H
Approved by the Ministry of Mechanical and Electrical Industry in 199110-24
1992—10-01 Solid
MJ5×5
MJ7×7
MJ10×9
Technical requirements
4.1 Appearance
JB5835-91
d 28: 8 yuan
Customized by the user
The surface of the assembly should be flat, smooth, without burrs, cracks, and obvious scratches. The assembly should be clean and free of grease. The surface of the PTFE piece is white and has no spots.
4.2 Lead
4.2.1 The multi-strand lead adopts the brand AF-200 polyperfluorinated high-temperature wire with a cross-sectional area of ​​0.2mm. 4.2.2 Single-strand lead wires are made of T2 bare copper wire with a diameter of 0.4mm. 4.2.3 The lead wire surface is silver-plated with 3μm.
4.3 Sleeve
The outer diameter of the polytetrafluoroethylene sleeve for single-strand lead wires shall not exceed 2mm, and the wall thickness shall not be less than 0.3mm. Lead wire pulling force
The pulling force at the connection between the lead wire and the contact shall not be less than 2)N. 4.5 Contact
The contact is flexible and reliable, and the surface is silver-plated. The surface roughness Ra of the contact is 1.6μm, and the end face flatness is 0.02mm. 4.6 Contact working pressure
When the compression amount of the assembly contact is 75% (h), the working pressure of the MJ5×5 contact shall not be less than 3N, and the working pressure of the other contacts shall not be less than 4N.
4.7 Material
The assembly is made of SFX-1 polytetrafluoroethylene resin (suspension method). 5 Inspection rules
The gate assembly inspection is divided into two categories: quality consistency inspection and identification inspection. 5.1 Quality consistency inspection
5.1.1 Group A inspection (batch by batch)
Each batch of gate assemblies must be inspected according to the items specified in Table 2. 66
Inspection items
Overall dimensions
Lead wire pulling force
JB5835-91
Inspection method
Measure with vernier caliper
Press with hand
Weigh with spring balance
Qualification criteria
Meet Article 3.2
To be met with Article 4.1
Meet Article 4.5
Meet Article 4.4
Sampling plan AQL
Inspection level II
Note: The specific sampling plan for AQL is shown in Appendix A. Batch inspection If the initial submission is unqualified, it can be resubmitted for re-inspection according to the stricter level - inspection method, but it can only be submitted once.
Group C inspection (cycle)
The gate assembly of finalized production must be inspected every six months according to the items specified in Table 3. Table 3
.No.
5.2 Appraisal inspection
Inspection items
Contact working pressure
Contact surface machining precision
High temperature storage
Inspection method
Measured with an anti-
pressure gauge of the same precision
GB.1958 and related standards
175±5c16h
Qualification criteria
Comply with Article 4.6
Comply with Article 4.5
Comply with Article 4.1
The purpose of appraisal inspection is to determine whether the manufacturer is capable of producing products that meet the requirements of the standard. nwww.bzxz.net
Sampling plan
Identification inspection should be carried out when the design, process, material changes or when the production is resumed after suspension. For the gate assemblies that have been finalized and are in normal batch production, at least one batch of identification inspection should be carried out every three years. The identification inspection items shall be carried out in accordance with the items specified in Article 5.1 and Table 4. 67
Inspection items
Temperature cycle test
Vibration (sinusoidal) test
JB5835--91
Inspection method
GB2423.22(Na)
-40℃, +150℃
30min each Transfer time
2~3min, three cycles
GB2423.10(Fc) Model
Vertical working state with instantaneous interrupter.
100~150Hz, 20g
Qualified criteria
Meet 4.1
Meet 4.6No
circuit breaking phenomenon in the circuit breaker
Sampling plan
Note: n and c in the sampling plan are the number of samples and the number of qualified judgments respectively. ②Identification test If the first sampling test fails, it can be tested again by additional sampling according to Appendix B, but only once. 6. Packaging, transportation, storage, marking
6.1 Packaging
Gate assemblies are packaged after they have passed the inspection and obtained the certificate of conformity. When packaging, first put 50 gate assemblies into plastic bags and seal them, and then put them into paper boxes or wooden boxes.
6.2 Transportation
Gate assemblies should be strictly protected from severe vibration and collision during transportation to avoid damage. 6.3 Storage
Gate assemblies should be stored in dry, ventilated places free from acid and alkali atmosphere. Marking
The following markings should be clearly marked on the outside of the packaging bag, packaging carton, and packaging wooden box: a. Product name, b. Product model and specifications; c. Manufacturer name; d. Manufacturing date or production batch number. 6.5 Acceptance
The purchaser should conduct acceptance inspection within three months after receiving the assembly. If any problems are found, they should be promptly reported to the supplier and handled by negotiation between the supply and demand parties.
Batch Range
91~150
151~280
281~500
501~1200
1201~3200
3201~10000
JB5835-91
Attached Scene A
AQL (Qualified Quality Level) Sampling Table||tt ||(Supplement)
Sample size
Initial sampling
Additional sampling
Additional number
(n2-nt)
Additional instructions:
JB5835—91
Additional sampling table
(Supplement)
This standard is proposed and managed by the Xi'an Power Electronics Technology Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by the Xi'an Power Electronics Technology Research Institute and the North China Rectifier Device Factory. The main drafters of this standard are Du Jimei and Song Xipai. 70
Qualified judgment number
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