Registration No. 1268
JAXA-QTS-2050/H101E
24 March 2023
Superseding
JAXA-QTS-2050/H101D
Cancelled
24 March 2023

RESISTORS, FIXED, WIRE WOUND,POWER TYPE, CHASSIS MOUNTED,HIGH RELIABILITY, SPACE USE,(RES 60, 65, 70 and 75 TYPES)DETAIL SPECIFICATION FOR

Prepared and Established by SEIDEN TECHNO CO., LTD.
Issued by JAPAN AEROSPACE EXPLORATION AGENCYThis document is the English version of JAXA QTS/ADS which was originally written andauthorized in Japanese and carefully translated into English for international users. If anyquestion arises as to the context or detailed description, it is strongly recommended to verify
against the latest official Japanese version.
The release date of the English version of this specification: 27 March 2024

JAXA-QTS-2050/H101E
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JAXA
Parts Specification

Page–i–ASA-8100-H101

Rev.
A

Date

Issuance History
Description

10 Nov. Original
2006
20 April Reflected the change of document by Seiden Techno Co., Ltd.
2009
Document No: ASA-8100-H101(Rev. A)

B

23 May2011

Reflected the change of document by Seiden Techno Co., Ltd.
Document No: ASA-8100-H101(Rev. B)

C15 May
2012

Reflected the change of document by Seiden Techno Co., Ltd.
Document No: ASA-8100-H101(Rev. CD

22 July
2020

Reflected the change of document by Seiden Techno Co., Ltd.
Document No: ASA-8100-H101(Rev. D)

E

24 Mar2023

Reflected the change of document by Seiden Techno Co., Ltd.
Document No: ASA-8100-H101(Rev. E)
The remainder of this page is intentionally left blank.

JAXA-QTS-2050/H101E
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JAXA
Parts Specification

Page– ii –ASA-8100-H101

Rev.
NC
A

B

Date

Revision History
Description

10 Nov. Original
2006
20 April Revised in accordance with the revised general specification, JAXA-QTS-2050A,
2009
Appendix H.
Table 4: Changed the applicable document to Appendix A of JAXA-QTS-2050A.
Table 6: Changed the test method paragraph number.
Table 7: Changed the test method paragraph number.
Table 8: Changed the test method paragraph number.
Table 9: Changed the test method paragraph number.
Table 10: Changed the test method paragraph number.
23 May Changed the wound core material for RES75 from beryllia ceramics to alumina
2011
ceramics (the use of beryllia ceramics was discontinued).

C15 May2012

Changed the followings in the Qualification Test (paragraph 4.2) and Thermalshock [I] and Thermal shock [II] in the Quality Conformance Inspection (paragraph4.3).
Table 7: Added Note (4).
Table 8: Added Note (4).
Table 10: Added Note (1).
Paragraph 4.5: Changed the test condition (test can be performed with either of
DC voltage or AC voltage) and added the reason (heat generation during theapplication of DC voltage and AV voltage is equivalent).

D

22 July
2020

Cover: Changed corporate name.
Paragraph 4.4 Long-Term Storage
Specified the storage conditions for purchaser.

E24 Mar2023

Revised in accordance with the revised general specification, JAXA-QTS-2050G,
Table 4: Added “Mass” to test item of Requirement paragraph H.3.3:
Table 7: Added “Mass” to test item of Requirement paragraph H.3.3.
Table 8: Added “Mass” to test item of Requirement paragraph H.3.3.
Changed the test item title from Dielectric withstanding voltage to Dielectricwithstanding voltage (Atmospheric pressure), changed test method paragraphnumber from H.4.4.4.4 to H.4.4.4.4.1.

JAXA-QTS-2050/H101E
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JAXAParts Specification

Page– iii –ASA-8100-H101

Contents
1.

GENERAL .......................................................................................................................... 1
1.1
Scope ......................................................................................................................... 1
1.2
Part Number ............................................................................................................... 1
1.3
Ratings ....................................................................................................................... 1
2. APPLICABLE DOCUMENTS.............................................................................................. 3
3. REQUIREMENTS .............................................................................................................. 3
3.1
Performance ............................................................................................................... 3
4. QUALITY ASSURANCE PROVISIONS .............................................................................. 5
4.1
In-Process Inspection ................................................................................................. 5
4.2
Qualification Test ........................................................................................................ 5
4.3
Quality Conformance Inspection ................................................................................. 7
4.4
Long-Term Storage ..................................................................................................... 8
4.5
Changes of Test and Inspection ................................................................................. 8
5. PREPARATION FOR DELIVERY ....................................................................................... 8
6. NOTE ................................................................................................................................. 8

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JAXAParts Specification

Page

–1–
ASA-8100-H101

RESISTORS, FIXED, WIRE WOUND,
POWER TYPE, CHASSIS MOUNTED,HIGH RELIABILITY, SPACE USE,DETAIL SPECIFICATION FOR(NASDA RES 60, 65, 70, 75 TYPES)
1.

GENERAL

1.1

Scope
This specification establishes the detailed requirements for JAXA-QTS-2050 Appendix H,
the chassis mounted, power type, wire wound, fixed resistors (hereinafter referred to as"resistors") RES 60, 65, 70, 75 Types to be used for electronic equipment installed on
spacecrafts such as satellites.

1.2

Part Number
The part numbers for the resistors covered in this specification shall be classified by style,resistance tolerance, and nominal resistance as shown in Table 1 and assigned as thefollowing example:(Example)

NASDA(1)

RES65
F
Style
Resistance tolerance(paragraph H.1.3.1) (paragraph H.1.3.2)

1001
Nominal resistance(paragraph H.1.3.3)

Note:(1) “NASDA” indicates the common part for space use and may be abbreviated to “N.”
Table 1. Part Numbers
Item
Style

Applicableparagraph of
JAXA-QTS-2050
H.1.3.1

ArticleRES60, RES65, RES70, RES75

Resistance tolerance

H.1.3.2

F (±1%)

Nominal resistance

H.1.3.3(e.g.) 1000∙∙∙100Ω (specified by a 4-digit number)

1.3

Ratings
The ratings are shown in Table 2.

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JAXA
Parts Specification–2–Page

ASA-8100-H101
Table 2. Specifications
Requirement
paragraph of
JAXA-QTS-2050

ItemArticle

Operating temperature range

H.3.5.2-55°C to +275°C

Ambient temperature

H.3.5.3

25°C

Derating curve

H.3.5.4

Refer to Figures 1 and 2−−

RES60

RES65

RES70

RES75

Minimum resistance

0.1

0.1

0.1

0.1

3320

5620

1210039200

Style

Nominal resistance range (Ω)

H.3.5.1

Maximum resistance(Nominal Diameter ofthe wire: 0.025 mm)

Rated power (chassis mounted) W(¹)

H.3.5.3−5101530

Rated power (free air) W

H.3.5.3−

36810

Note (1): The chassis dimensions are specified in Table 3.

Table 3. Dimensions of Chassis
Unit: mm

Style
RES60
RES65
RES70RES75

Length x width x heightThickness(152 ± 3) x (101 ± 3) x (51x ± 3)

1.0 ± 0.1(178 ± 3) x (127 ± 3) x (51x ± 3)

1.0 ± 0.1

Figure 1. Derating Curve with respect to Surface Size of Chassis
Notes: (1) Figure 1 indicates the derating curve with respect to the surface size of chassis when theresistor is installed on the chassis.
(2) The operating ambient temperature is 25°C.

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JAXAParts Specification–3–Page

ASA-8100-H101

Figure 2. Derating Curve

2.

APPLICABLE DOCUMENTS
The applicable documents are as specified in paragraph 2.1 of JAXA-QTS-2050.

3.

REQUIREMENTS
The requirements are as specified in paragraph H.3, Appendix H of JAXA-QTS-2050 and asprovided below.

3.1

Performance
The performance is specified in Table 4.
Table 4. Performance
Item

Materials
Externals, dimensions, mass andmarking

Requirement
paragraph ofJAXA-QTS-2050
H.3.2
H.3.3

DPA

H.3.4.1

ResistanceH.3.6.1

Resistance-temperature
Characteristics

H.3.6.2

Power conditioning
Dielectric withstanding voltage
Insulation resistance
Short-time overload
Terminal strength
Solderability
High frequency vibration
Random vibration
Shock
Heat resistance
Thermal shock [I]H.3.6.3
H.3.6.4
H.3.6.5
H.3.6.6
H.3.7.1
H.3.7.2
H.3.8.1.1
H.3.8.1.2
H.3.8.2
H.3.8.3
H.3.8.4.1

Performance
As specified in Appendix H of JAXA-QTS-2050
As specified in Figure 3 and Table 5
Shall be in accordance with the requirements specified in thequality conformance program
Within the resistance Tolerance
Resistance
10‾6/°C
Less than 1 Ω±1001 Ω to 19.60Ω±5020 Ω as a minimum±30Allowable resistance change ± (0.2% + 0.05Ω)Allowable resistance change ± (0.2% + 0.05Ω)10,000MΩ as a minimum
Allowable resistance change ± (0.3% + 0.05Ω)Allowable resistance change ± (0.2% + 0.05Ω)Flat part of the terminal: 95% as a minimum
Allowable resistance change ± (0.2% + 0.05Ω)Allowable resistance change ± (0.2% + 0.05Ω)Allowable resistance change ± (0.2% + 0.05Ω)Allowable resistance change ± (0.5% + 0.05Ω)Allowable resistance change ± (0.3% + 0.05Ω)JAXA-QTS-2050/H101E
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JAXAParts Specification

Page–4–
ASA-8100-H101

Table 4. Performance (Continued)

Thermal shock [II]Requirement
paragraph of
JAXA-QTS-2050
H.3.8.4.2

Moisture resistance

H.3.8.5

Resistance to solvents
Low temperature storage
Stability

H.3.8.6
H.3.8.7
H.3.8.8

Life

H.3.9.1

Item

Performance
Allowable resistance change ± (0.75% + 0.05Ω)Allowable resistance change ± (0.5% + 0.05Ω)Insulation Resistance: 1,000MΩ minimum
There shall be no defects with the marking
Allowable resistance change ± (0.3% + 0.05Ω)Allowable resistance change ± (1.0% + 0.05Ω)2,000 hours ±(1.0% + 0.05Ω)Allowable resistance change
4,000 hours ±(1.0% + 0.05Ω)Figure 3. Construction and Dimensions
Table 5. Dimensions, Marking and MassDimensions
mmStyleA ±1.6
B ±0.3
C ±0.8D ±0.3E ±1.6F ±1.6G ±1.6
H ±0.8J ±0.8K ±0.1
L ±0.8M ±1.6
N ±0.8P ±0.1
Q ±0.1
 0 .5

R0Mass g (maximum)

RES60
28.6
12.5
2.0
11.3
15.2
6.8
8.5
6.2
16.4
2.4
8.1
3.4
1.7
1.3
1.5

RES65
34.9
15.92.4
14.3
19.1
7.9
11.1
7.9
20.6
2.4
10.3
5.2
2.4
2.2
2.0

RES70
49.2
19.8
4.4
18.3
27.0
11.1
13.5
9.9
27.8
3.2
14.3
7.1
2.4
2.2
2.0

RES75
70.6
21.4
4.8
39.7
49.2
11.1
15.1
10.7
29.4
3.2
15.9
7.9
2.4
2.2
2.0

2.2

3.6

3.6

3.6

38
1532
RES60
RES65
RES70
RES75
Marking
F1001
F1001
F1001
F1001
(Minimum requirement)
SEF 0634(1)SEF 0634(1)SEF 0634(1)SEF 0634(1)Note: (1) SEF stands for Seiden Techno.Co., LTD and the number indicates the year and week
manufactured.

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JAXA
Parts Specification

Page–5–
ASA-8100-H101

4.

QUALITY ASSURANCE PROVISIONSThe quality assurance provisions are as specified in paragraph H.4 of JAXA-QTS-2050 andas provided below.

4.1

In-Process Inspection
The In-process inspection shall be performed in accordance with paragraph 4.3 of JAXAQTS-2050. Specifically, inspection items specified in Table 6 shall be performed.
Table 6. In-Process Inspection
Requirement
paragraph ofJAXA-QTS-2050
H.3.3

Test method
paragraph ofJAXA-QTS-2050
H.4.4.2

Spot welding−−100%

Dielectric withstanding voltage−−100%

Resistance−−100%

Item
Externals and dimensions

4.2

Number of samples
100%Qualification Test
The qualification Test shall be performed in accordance with paragraph H.4.1, Appendix H
of JAXA-QTS-2050. Specifically, test items specified in Table 7 shall be performed.

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JAXA
Parts Specification–6–Page

ASA-8100-H101
Table 7. Qualification TestTestGroupOrderI1IAIBII1211234567891III

23ItemExternals, dimensions, mass andmarking(2)Power conditioning
Resistance
DPA
Resistance-temperature characteristics
Heat ResistanceLow temperature storage
Dielectric withstanding voltage
Insulation resistance
Thermal shock [I](4)Short-time overload
Moisture resistanceTerminal strength
Shock
High frequency vibration

Thermal shock [II](4)Requirement
paragraph

Test method
paragraph

H.3.3

H.4.4.2

H.3.6.3
H.3.6.1
H.3.4.1
H.3.6.2
H.3.8.3
H.3.8.7
H.3.6.4
H.3.6.5
H.3.8.4.1
H.3.6.6
H.3.8.5
H.3.7.1

H.4.4.4.3
H.4.4.4.1
H.4.4.3.1
H.4.4.4.2
H.4.4.6.3
H.4.4.6.7
H.4.4.4.4
H.4.4.4.5
H.4.4.6.4.1
H.4.4.4.6
H.4.4.6.5
H.4.4.5.1

H.3.8.2

H.4.4.6.2

H.3.8.1.1

H.4.4.6.1.1

H.3.8.4.2

H.4.4.6.4.2

IV1

Random vibration

H.3.8.1.2

H.4.4.6.1.2

V1

Life

H.3.9.1

H4.4.7.1

VI1

Stability

H.3.8.8

H.4.4.6.8

1
2
1

Solderability
Resistance to solvents
Materials

H.3.7.2
H.3.8.6
H.3.2

H.4.4.5.2
H.4.4.6.6-VII-

Criteria for Pass/FailNo. of
Number of samples
defects
allowed (1)100%

0212 Highest
resistance024

1
12 1Ω or lowest
resistancewhichever isgreater.

10 The highest
resistance
20 10 1Ω or lowest
resistance,
whichever isgreater.
10 Highest
resistance
20 10 1Ω orlowestresistance,
whichever isgreater.
77 Highest
resistance
77 I KΩ231 77 1Ω orlowestresistance,
whichever isgreater.
9 The highest
resistance
9 I KΩ
27 9 1Ω or lowest
resistance,
whichever isgreater.
10 (Optional
resistance)
(3 )

11

10

10Notes: (1) Even if a sample failed multiple test items in the same test group, the number of defects shall becounted as one.
(2) For dimensions and mass, use “JIS Z 9015-1 General Inspection Level II” AQL 1.0%.
(3) Submit data which proves that the materials satisfy the design specification.
(4) The load condition shall be DC voltage or AC voltage equivalent of 50% of the rated power.

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JAXA
Parts Specification–7–Page

ASA-8100-H101
4.3

Quality Conformance Inspection
The quality conformance inspection shall be performed in accordance with paragraph
H.4.2 of JAXA-QTS-2050. Specifically, inspection items specified in Tables 8, 9 and 10
shall be performed.
Table 8. Quality Conformance Inspection (Group A)
TestGroup

Order

Item

Requirement
paragraph

Test method
paragraph

Criteria for Pass/Fail

Number ofsamples

No. of defects
allowed (2)Power conditioning
H.3.6.3
H.4.4.4.3
ResistanceH.3.6.1
H.4.4.4.1
100%0Externals, dimensions, mass
H.3.3
H.4.4.2
A21and marking (3)1DPA
H.3.4.1
H.4.4.3.1
A3( )120Resistance-temperature
H.3.6.2H.4.4.4.2
1
characteristics
Dielectric withstanding
voltageH.3.6.4
H.4.4.4.4.1
2
A4(1)
100
(Atmospheric pressure)
Insulation resistanceH.3.6.5
H.4.4.4.5
3Thermal shock [I](4)H.3.8.4.1
H.4.4.6.4.1
4
Notes: (1) Sampling method for Groups A3 and A4 shall be constant sampling. Samples for Group A4 shall
12

A1

be selected from those of the highest resistance.
(2) Even if a sample failed multiple test items in the same test group, the number of defects shall becounted as one.
(3)

For dimensions and mass, use “JIS Z 9015-1 General Inspection Level II” AQL 1.0%.

(4) The load condition shall be DC voltage or AC voltage equivalent of 50% of the rated power.

Table 9. Quality Conformance Inspection (Group B)
Test
GroupB1

B2
B3
B4

Order

123
4
5
1
1
12

Item

Heat resistanceLow temperature storage
Short-time overload
Moisture resistanceTerminal strength
LifeStability
Solderability
Resistance to solvents

Requirement
paragraph

Test method
paragraph

H.3.8.3
H.3.8.7
H.3.6.6
H.3.8.5
H.3.7.1
H.3.9.1
H.3.8.8
H.3.7.2
H.3.8.6

H.4.4.6.3
H.4.4.6.7
H.4.4.4.6
H.4.4.6.5
H.4.4.5.1
H4.4.7.1
H.4.4.6.8
H.4.4.5.2
H.4.4.6.6

Criteria for Pass/Fail
Number of
No. of defects
samples
allowed

10010
1000

80

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JAXA
Parts Specification–8–Page

ASA-8100-H101
Table 10. Quality Conformance Inspection (Group C)
Test
Group

Order

C1

11
2
3C2

Item
Random vibration
Shock
High frequency vibration
Thermal shock [II](1)Requirements
paragraph

Test method
paragraph

H.3.8.1.2H.3.8.2

Criteria for Pass/Fail
Number ofsamples

No. of defects
allowed

H.4.4.6.1.2
H.4.4.6.2

100

H.3.8.1.1

H.4.4.6.1.1

100

H.3.8.4.2

H.4.4.6.4.2

Note: (1) The load condition shall be DC voltage or DC voltage equivalent of 50% of the rated power.

4.4

Long-Term Storage
Long-term storage shall be in accordance with paragraph 4.7 of JAXA-QTS-2050.
The products shall be stored at room temperature (15 to 35°C) and at the normal humidity(45 to 75%RH) in the package provided by the manufacturer. The products shall not be
stored directly on the floor. It is desirable that the resistors stored more than 12 months
after delivery are submitted to re-Inspection performed by the manufacturer.

4.5

Changes of Test and Inspection
Change the requirements for Thermal shock [I] and Thermal Shock [II] as follows.
a) Changed content: Thermal shock tests can be performed using either of DC voltage
or AC voltage though it is specified as “DC voltage equivalent of50% of the rated power” in JAXA-QTS-2050, Appendix H.
b) Reason for change: There is no difference between DC voltage and AC voltage interms of test condition as the heat generation during theapplication of DC voltage and AC voltage to the same productwith the same load factor is equivalent.

5.

PREPARATION FOR DELIVERY
Preparation for delivery shall be in accordance with paragraph 5 of JAXA-QTS-2050.

6.

NOTE
Refer to the paragraph 6 of JAXA-QTS-2050.