REVISIONS
LT DESCRIPTION DATE APPROVED
A
Five year document review. Update to
present DoD policy requirements
6 Feb 2004 K. Cottongim
B
Add pure tin, m anuf ac turer eligibi lity, and
high power pulse paragraphs. Editorial
changes throughout.
3 Dec 2010
M. Radecki
Prepared in accor d anc e wit h ASM E Y14. 100 Source control drawing
REV STATUS
OF PAGES REV B B B B B B
PAGES 1 2 3 4 5 6
PMIC N/A
PREPARED BY
Dennis L. Cross
DEFENSE SUPPLY CENTER, COLUMBUS
COLUMBUS, OH
Original date of
drawing
23 November 1998
CHECKED BY
Andrew R. Ernst
TITLE
RESISTORS, FIXED, FILM (INSULATED), 1/8 WATT
APPROVED BY
Andrew R. Ernst
SIZE
A
CODE IDENT. NO.
037Z3
DWG NO.
98020
REV B
PAGE 1 OF 6
AMSC N/A 5905-E718
CURRENT DESIGN ACTIVITY CAGE CODE 037Z3
HAS CHANGED NAMES TO:
DLA LAND AND MARITIME
COLUMBUS, OHIO 43218-3990
DEFENSE SUPPLY CENTER, COLUMBUS
COLUMBUS, OHI O
SIZE
A
CODE IDENT NO.
037Z3
DWG NO.
98020
REV B PAGE 2
1. SC OPE
* 1.1 Scope. This drawing describes the requirements for insulated, fixed, film, 1/8 watt resistors available in ±2 percent,
±5 percent, and ±10 percen t resistance tolerances. These resistors are capable of full-load operation at an ambient
temperature of 70OC. Designers are CAUTIONED on using these resistors in high power pulse applications (see 6.4).
1.2 Part or Identifying Number (PIN). The complete PIN is as follows:
98020-
-
G
220
|
|
|
|
|
|
Drawing
number
Tolerance
(see 3.3.1)
Resistance va lu e
(see 3.3.2)
2. APPLICABLE DOCUMENTS
2.1 Government documents.
* 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of
this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in
the solicitation or contract.
DEPARTMENT OF DEFENSE SPECIFICATIONS
MIL-PRF-39017 - Resistors, Fixed, Film (Insulated), Nonestablished Reliability, Established Reliability, General
Specification for.
DEPARTMENT OF DEFENSE STANDARDS
MIL-STD-790 - Standard Practice for Established Reliability and High Reliability Qualified Products List (QPL)
Systems for Electrical, Electronic, and Fiber Optic Parts Specifications.
MIL-STD-1285 - Marking of Electrical and Electronic Parts.
* (Copies of these documents are available online at https://assist.daps.dla.mil/quicksearch/ or from the Standardization
Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.)
* 2.2 Order of precedence. Unless otherwise noted herein or in the event of a conflict between the text of this document
and the references cited herein (except for related specification sheets), the text of this document takes precedence.
Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been
obtained.
3. REQUIREMENTS
3.1 Item requirements. The individual item requirements shall be in accordance with MIL-PRF-39017, and as specified
herein.
3.2 Interface and physical dimensions. The interface and physical dimensions shall be as specified in MIL-PRF-39017
and herein (see figure 1).
DEFENSE SUPPLY CENTER, COLUMBUS
COLUMBUS, OHI O
SIZE
A
CODE IDENT NO.
037Z3
DWG NO.
98020
REV B PAGE 3
.150
± .020
1.250
± .266
1.250
± .266
SEE NOTE 3
.016
± .002
.187 MAX
SEE NOTE 2
.066
± .008
LEAD LOCATION AT
TRUE POSITION
WITHIN .016 DIA
NOTES:
1. Dimensions are in inches. Metr ic equ iv ale nts are given for general information only.
2. Maximum length is “clean lead” to “clean lead”.
3. The end of the body shall be that point at which the body diameter equals the nearest drill size larger than 250
percent of the nominal lead diameter.
4. Lead length for tape and reel packaging shall be 1 inch (25.4 mm) minimum (see 6.2).
5. The pictorial view of the style above does not depict the actual size and is given as representative of the envelope
of the item. Slight deviations from the outline shown, which are contained within the envelope, and do not alter the
functional aspects of the device are acceptable.
FIGURE 1. Fixed, film, resistor.
3.3 Electrical chara cteristics.
3.3.1 Resistance tolerance. The resistance tolerance available shall be (G) ±2 percent, (J) ±5 percent, and (K) ±10
percent.
3.3.2 Resistance. The nominal resistance expressed in ohms is identified by three digits; the first two digits represent
significant figures and the last digit specifies the number of zeros to follow. Minimum and maximum resistance values
shall be as specified in 3.3.3. Resistance values not listed in the "10 to 100" decade of tab le I for the appropriate
resistance tolerance shall be considered nonconforming to the specification.
Inches
mm
Inches
mm
.002
0.05
.150
3.81
.008
0.20
.187
4.75
.016
0.41
.266
6.76
.020
0.51
1.250
31.75
.066
1.68
DEFENSE SUPPLY CENTER, COLUMBUS
COLUMBUS, OHI O
SIZE
A
CODE IDENT NO.
037Z3
DWG NO.
98020
REV B PAGE 4
TABLE I. Standard resistance values for 10 to 100 decade.
(G)
(J)
(K)
(G)
(J)
(K)
(G)
(J)
(K)
10.0
11.0
12.0
13.0
15.0
16.0
18.0
20.0
10.0
---
12.0
---
15.0
---
18.0
---
22.0
24.0
27.0
30.0
33.0
36.0
39.0
43.0
22.0
---
27.0
---
33.0
---
39.0
---
47.0
51.0
56.0
62.0
68.0
75.0
82.0
91.0
47.0
---
56.0
---
68.0
---
82.0
---
3.3.3 Resistance range. Minimum and maximum resistance values for temperature characteristic of ±350 parts per
million (ppm) shall be 1.1 megohm and 22 megohms respectively.
3.3.4 Power rating. The power rating shall be 1/8 watt at +70OC. For operation at temperatures higher than +70OC,
derate in accor dance w ith figure 2.
FIGURE 2. Derating curve
3.3.5 Voltage rating. The maximum continuo us work ing volt ag e shall not ex ceed 200 volts .
3.3.6 Termination. Termination material shall be in accordance with MIL-PRF-39017.
* 3.3.6.1 Pur e tin . The use of pure tin, as an underplate or final finish is prohibited both internally and externally. Tin
content of resistor components and solder shall not exceed 97 percent, by mass. Tin shall be alloyed with a minimum of 3
percent lead, by mass (see 6.3).
3.3.7 Solderability. The requirement for solderability shall be as specified in MIL-PRF-39017.
DEFENSE SUPPLY CENTER, COLUMBUS
COLUMBUS, OHI O
SIZE
A
CODE IDENT NO.
037Z3
DWG NO.
98020
REV B PAGE 5
3.4 Marking. Full marking shall be in accordance with MIL-STD-1285, except the resistors shall be marked with the
PIN as specified herein (see 1.2), the manufacturer’s name or Commercial and Government Entity (CAGE) code, and
date lot codes is required on the unit package. Due to size limitations this style resistor shall be marked with the following
minimum information in the order shown:
8020 - Last four digits of this DSCC drawing number.
826D - Year and week manufactured and the manufacturers code (see qualified products list
MIL-PRF-39017 for manufacturer's code symbol).
G220 - Resistance tolerance and resistance value.
3.5 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable
materials should be used to the maximum extent possible provided that the material meets or exceeds the operational
and maintenance requirements, and promotes economically advantageous life cycle costs.
* 3.6 Manufacturer eligibility. To be eligible for listing as an approved source of supply, a manufacturer shall be listed on
the MIL-PRF-39017 Qualified Products List for at least one part, or perform the group A and group B inspecti ons specif ied
herein on a sample agreed upon by the manufacturer and DLA Land and Maritime-VA.
* 3.6.1 Certificate of compliance. A certificate of compliance shall be required from manufacturers requesting to be an
approved source of supply.
3.7 Workmanship. Resistors shall be uniform in quality and free from any defects that will affect life, serviceability, or
appearance.
4. VERIFICATION
* 4.1 Qualification inspection. The qualification inspection specified in MIL-PRF-39017 and maint ain ed in acc or dance
with MIL-STD-790 is not applicable to this doc ument.
4.2 Conformance inspection.
4.2.1 Inspection of product for delivery. Inspection of product for delivery shall consist of group A and group B
inspections of MIL-PRF-39017.
4.2.2 Certification. The acquiring activity, at its discretion, may accept a certificate of compliance with group B
requirements in lieu of performing group B tests (see 6.2e).
4.3 Product level qualification. The product level qualification specified in MIL-PRF-39017 is not applicable to this
document.
4.4 Visu al and m echanic al examination . Resistors shall be examined to verify that the materials, design, construction,
physical dimensions, marking, and workmanship are in accordance with the applicable requirements of MIL-PRF-39017.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see
6.2). When packaging of materiel is to be performed by DoD or in-house contractor personnel, these personnel need to
contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are maintained
by the Inventory Control Point's packaging activity within the Military Department or Defense Agency, or within the military
service’s system commands. Packaging data retrieval is available from the managing Military Department's or Defense
Agency's automated packaging files, CD-ROM products, or by contacting the responsible packaging activity.
DEFENSE SUPPLY CENTER, COLUMBUS
COLUMBUS, OHI O
SIZE
A
CODE IDENT NO.
037Z3
DWG NO.
98020
REV B PAGE 6
6. NOTES
(This section contains information of a general or explanatory nature which may be helpful, but is not mandatory.)
6.1 Intended use. Resistors conforming to this drawing are intended for use when military specifications do not exist.
This drawing is intended exclusively to prevent the proliferation of unnecessary duplicate specifications, drawings, and
stock catalog listings. When a military specification exists and the product covered by this drawing has been qualified for
listing, this drawing becomes obsolete and will not be used for new design.
6.2 Ordering data. The contract or purchase order should specify the following:
a. Complete PIN (see 1.2).
b. Requirements for delivery: One copy of the conformance inspection results or certificate of compliance that
parts have passed conformance inspection with each shipment of parts by the manufacturer.
c. Terminal finish.
d. Requirements for packaging and packing.
e. Whether the manufacturer performs the group B tests or provides certification of compliance with group B
requirements (see 4.2.2).
* 6.3 Tin whisker growth. The use of alloys with tin content greater than 97 percent, by mass, may exhibit tin whisker
growth problems after manufacture. Tin whiskers may occur anytime from a day to years after manufacture and can
develop under typical operating conditions, on products that use such materials. Conformal coatings applied over top of a
whisker-prone surface will not prevent the formation of tin whiskers. Alloys of 3 percent lead, by mass, have shown to
inhibit the growth of tin whiskers. For additional information on this matter, refer to ASTM-B545 (Standard Specification
for Electrodeposited Coatings of Tin).
* 6.4 Pulse applications. Designers are CAUTIONED on using the above resistors in high power pulse applications.
Since they have not been qualified nor tested for such applications, damage and premature failure are possible. These
resistors only see a one time pulse (Short-time overload) as part of the group B inspection of MIL-PRF-39017.
* 6.5 User of record. Coordination of this document for future revisions is coordinated only with the approved source of
supply and the users of record of this document. Requests to be added as a recorded user of this drawing may be
achieved online at resistor@dla.mil or in writing to: DLA Land and Maritime-VAT, Post Office Box 3990, Columbus, OH
43218-3990 or b y telephone (614) 692-0552 or DSN 850-0552.
* 6.6 Approved source of supply. Approved source of supply is listed herein. Additional sources will be added as they
become available. Assistance in the use of this drawi ng m a y be obtained onlin e at resistor@dla.mil or contact
DLA Land and Maritime-VAT, Post Office Box 3990, Columbus, OH 43218-3990 or by telephone (614) 692-0552 or DSN
850-0552.
DLA Land and
Maritime drawing
PIN
Vendor similar
designation or type
number 1/
Vendor
CAGE Vendor name
and address
98020-**** ERL-05-36 91637
Vishay Dale, Inc.
PO Box 609
Columbus, NE 68602-0609
1/ Parts must be purchased to the DLA Land and Mar it im e PIN to assure that all performance
requirements and tests are met.
