SJ 2859-1988 Detailed specification for electronic devices Power type fixed resistors RXG2 type wirewound fixed resistors Assessment level E SJ2859-1988 standard download decompression password: www.bzxz.net

Ministry of Electronics Industry of the People's Republic of China Standard SJ2859--88
Detailed specification for fixed resistors
Published on March 4, 1988
Implementation on October 1, 1988
Approved by the Ministry of Electronics Industry of the People's Republic of China Ministry of Electronics Industry of the People's Republic of China Standard Detailed specification for electronic components
Power type fixed resistors
RXG2 type wirewound fixed resistors
Assessment level E
Ministry of Electronics Industry of the People's Republic of China
GB5729
Electronic components for quality assessment according to E15—
Appearance drawing
(Appearance dimensions see Table 1)
Lead root coating length
SJ2859-88
SJ2859--88
GB5733
FEC115--4--1-1983
Power fixed resistors
(RXG2 type wire-wound fixed
fixed resistors)
Non-insulated type
Assessment level: E
Stability grade: 5%
The valid data of components qualified according to this detailed specification are given in the list of qualified products. Issued by the Ministry of Electronics Industry on March 4, 1988
Implementation on October 1, 1988
1 General data
1.1 Recommended installation method
The resistor is installed and fixed by its leads.
SJ2859--88
In vibration and shock tests, the distance between the resistor body and the mounting fixing point is 6±1mm. Dimensions, ratings and characteristics
Rated power dissipation
All dimensions are in meters.
Resistance range*
Nominal resistance tolerance:
Climate category
Low pressure
Stability grade
Temperature coefficient
Resistance change limit:
Long-term test
Short-term test
1.2.1 Reduced power dissipation
Temperature coefficient
Limiting voltage|| tt||Not applicable
0.12~1000
Not applicable
Maximum size
28±20.6±0.08
≤102, ±10%:>102, ±%555/155/21
8.5kPa（85mbar)
≤±250×10~6/°℃|| tt||±（5%R+0.10）
±（1%R+0.05）
≤250°℃
The resistors covered by this specification shall reduce power consumption according to the following curve: 122
*The priority value is E24 series with IEC33
Environmental humidity, ℃
1.3 Related documents
S32859-88
General specification: GB5729 Fixed resistors for electronic equipment Part 1: General specification Sub-specification: GB5732 Fixed resistors for electronic equipment Part 4: Sub-specification: Power type fixed resistors 1.4 Marking
1.4.1 The marking on resistors and packaging shall comply with the requirements of Article 2.4 of the general specification GB5729; certified products shall be marked with the certification mark on the packaging.
1.5 Ordering Information
Orders for resistors to this specification shall list the following minimum information in plain text or code form: a. Nominal resistance:
b. Permissible deviation of nominal resistance:
c. Number and version of this detailed specification and variety designation. 1.6 Release batch certification record
Requirements.
1,7 Additional information (not inspected)
1.8 No additional or increased severity or requirements are required for the provisions of the general specification and (or) sectional specification.
2 Inspection requirements
1.1 Procedure
2.1.1 The identification and approval procedure shall comply with the provisions of Section 3.2 of Section GB5732. 2.1.2 For quality consistency inspection, the test schedule (Table 2) includes sampling, cycle, severity and requirements. Section 3.3.1 of the sectional specification specifies the composition of the inspection batch. Table 2
Note: ①Except that the resistance change requirement should be selected from Table 1 and Table 2 of the sectional specification GB5732, the clause numbers of the test items and performance requirements are quoted from the general specification GB5729.
②) Inspection level (IL) and qualified quality level (4QL) are selected from IEC410: counting inspection extraction plan and stable sequence. ?In the table:
P—cycle, month:
Sample size
C—qualified number of judgments (allowable number of unqualified products):D—destructive,
ND non-destructive,
IL inspection level
AQL—qualified quality level
IEC410,
clause number and test items
(see note ①)
Group A inspection
(remote approval)
A1 grouping
|4.4.1 Appearance inspection
Group A2
4.4.2 Dimensions (regulation
inspection)
4.5 Resistance
Group B inspection
(batch by batch)
Group B1 (not applicable to 9)
4.7 Attached voltage
Group B2
4.17 Viability
4,16 Terminal strengthbzxz.net
4,13 Over-comparison
Clause number and test items
( Note ①)
C group test
(cycle)
C1A group
(half of CI group sample)
4,16 Terminal strength
4.18 Welding heat
SJ2859--88
Continuation 2
Test components
(see Note?)
Use 1/20mm tool
No deterioration
Method, IEC68-2-20| |tt||（1968）Test T
is 1
times temperature: 236±5°℃
immersion time: 2±0.54
depth of the heart: 2.8.gmm from the resistor body
tensile test
appearance inspection set
see 2.3.4 of the current standard CB5732
appearance inspection
continued table 2
test items
(note ①)
Tensile, bending and torsion
Appearance inspection
Method: IEC63-2-20A
(Note②)
Group size and
Qualified judgment number
(Note)
Performance requirements
(See Note)
See Article 4.4.1, clearly marked
Comply with Article 1.4 of this specification
According to Article 1 of this specification
According to Article 4.5.2||tt ||Solder wets the lead and can flow freely
Indicates that the package must be good
No visible damage
AR±(1%R+0.05O)
No visible damage
AR±(1%R+0.05Q)
Performance requirements
(See Note ①)
No visible damage
AR≤±(1%R±0.05Q)
Clause number and test items
(See Note ①)
C IB group
(the other half of the CI group samples)
4.19 Rapid temperature change
4.21 Shock
CI group
(all samples of CIA group and CIB group)
4,23 Gas chopstick sequence
—dry heat
one cycle warm,
test Db,
first cycle
one cold
one low pressure
one broadcast Ring temperature heat,
S32859-88
Continued Table 2
Test conditions
(See Note@)
(1970) Test
Tb, Method IB
Source: 350±10°℃
No time: 3.5±0.5 onwards
Immersion depth: Distance from resistor body
Main body 2+0.5
Appearance inspection
9A:-55°C
0B:+155°℃
Appearance inspection
Installation method: See this specification
Acceleration: 430m/s*
Pulse duration, 1lms
Pulse waveform: Half sine wave
Appearance inspection
Limiting resistance
Installation method: See 1.1 of this specification
Procedure, B4
Frequency model: 10~500Hz
Image: 0.75mm or acceleration|| tt||Speed ​​98m/s* (take the smaller one)
Total duration: 6h
Appearance inspection
8.5kPa(85mbaz)
Sample size and
Grid determination number
(see Note ③)
Performance requirements
(see Note ①)
No visible damage, clear markings
AR≤±（1%R+0.052）
No visible damage Damage
△≤±（1%R+0.052）
No visible damage
AR≤(1%R+0.052)
No visible damage
△R≤±（1%R+0.052）
Series model number and test age item
（see D）
Qualification Db,
Other cycles
C2 group
4,25.2 Air temperature durability
C3 group Group
4.8 Change of group values ​​with temperature
Group D test
(cycle)
DI group
4.24 Damp heat in photography
D2 group
4.14 Overflow
D3 group
4,4,3 Dimensions (detailed)
4.25.3 Upper limit category Overflow
Durability
Additional notes,
This standard was drafted by Factory 795.
SJ2859--88
Continued 2
Test conditions
(See Note 0)
Appearance inspection
Duration: 1000h
G:teh,5achRncooa
Time inspection:
Appearance inspection
-55*C/+20-C
+20°C /+155-C
According to 1.24, 2.2,
10 samples in the first group
10 samples in the second group
Appearance inspection
Duration, 1000h
Inspection at 48h, 50ch and 1000h
:
Appearance inspection
The main drafters of this standard are Han Changsheng and Zeng Shuiping. Sample size and
Qualified judgment number
(See Note?)
Performance requirements
(See Note?)
No visible damage, clear marking
AR≤(5%R+01Q)
No visible damage, clear marking
AR±(5%R+0.12)
a±250×10*/*c
a≤±260×10-8/oc
No visible damage, clear marking
AR≤±(5%R+0.102)
Comply with the provisions of Table 1 of this specification
No visible damage, clear marking
△R≤(5%R+0.18)
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.