1、 REVISIONS LTR DESCRIPTION DATE APPROVED Prepared in accordance with ASME Y14.100 Source control drawing REV STATUS OF PAGES REV PAGES 1 2 3 4 5 6 PMIC N/A PREPARED BY Andrew R. Ernst DESIGN ACTIVITY DLA LAND AND MARITIME COLUMBUS, OH 43218-3990 Original date of drawing 15 October 2010 CHECKED BY An
2、drew R. Ernst TITLE RESISTOR, CURRENT SENSE, OPEN AIR, STANDARD LEADS, 5 WATT APPROVED BY Michael A. Radecki SIZE A CODE IDENT. NO. 037Z3 DWG NO. 10008 REV PAGE 1 OF 6 AMSC N/A 5905-E730 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DLA LAND AND MA
3、RITIME COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 10008 REV PAGE 2 1. SCOPE 1.1 Scope. This drawing describes the requirements for an open air, current sense, 5 watt resistor with standard leads. 1.2 Part or Identifying Number (PIN). The complete PIN is as shown in the following example: 100
4、08- R0500 F | | | | | | Drawing number Resistance (see 3.3.1) Tolerance (see 3.3.2) 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification
5、 or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents in sections 3 and 4 of this specification, whether or not they are listed. 2.2
6、 Government documents. 2.2.1 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. DEPART
7、MENT OF DEFENSE SPECIFICATIONS MIL-PRF-39007 - Resistors, Fixed, Wire Wound (Power Type), Nonestablished Reliability, Established Reliability and Space Level, General Specification for. DEPARTMENT OF DEFENSE STANDARDS MIL-STD-690 - Failure Rate Sampling Plans and Procedures. MIL-STD-790 - Establishe
8、d Reliability and High Reliability Qualified Products List (QPL) Systems for Electrical, Electronic, and Fiber Optic Parts Specifications. (Copies of these documents are available online at https:/assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, B
9、uilding 4D, Philadelphia, PA 19111-5094.) 2.3 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes
10、 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-39007, and as specified herein. 3.2 Interface and physical dimensions. The resistor shall meet the interface and
11、 physical dimensions as specified in herein (see figure 1). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DLA LAND AND MARITIME COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 10008 REV PAGE 3 NOTES: 1. Dimensions are in inches. 2. Millimeter eq
12、uivalents are given for general information only. Ltr Dimensions (Inches and (mm) A .800 +.040/-.020 20.32 +1.020/-0.508 B 0.65 typical (16.5) C .125 .030 (3.18 0.762) E .065 +.010/-.005 (1.65 +0.254/-0.127) F .040 .002 (1.02 0.051) FIGURE 1. Open air, current sense resistor. 3.3 Electrical characte
13、ristics. 3.3.1 Resistance. The nominal resistance is expressed in ohms and is identified by five digits; the letter “R“ shall be used to represent the decimal point. The resistance value designations are shown in table I. 3.3.2 Resistance range. The resistance range shall be from 0.005 ohm to 0.050
14、ohm. TABLE I. Resistance value designations. Designation Resistance ohms R0050 to R0097 inclusive R0100 to R0500 inclusive 0.0050 to 0.0097 inclusive 0.0100 to 0.050 inclusive 3.3.2 Resistance tolerance. Resistors are available in resistance tolerances of (F) 1 percent; (G) 2 percent; and (J) 5 perc
15、ent. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DLA LAND AND MARITIME COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 10008 REV PAGE 4 3.3.3 Resistance temperature characteristic. The resistance temperature characteristic of the alloy shall n
16、ot exceed 20 ppm. Note: The resistance temperature characteristic is based on the metal alloy and copper termination and will vary slightly due to mounting methods and resistance range of the product. Values depicted are calculated and are less than the values indicated. 3.3.4 Power rating. The powe
17、r rating shall be 5 watt at 85C. For temperatures in excess of +85C shall be derated in accordance with figure 2. 3.3.5 Inductance. Resistors shall have an inductance of less the 10 nanohenries. 3.3.6 Operating temperature. Resistors shall have an operating temperature of -40C to +125C. FIGURE 2. De
18、rating curve for high ambient temperatures. 3.4 Marking. Resistors shall be marked with the resistance value only due to size limitations. Each unit package shall be marked with PIN assigned herein (see 1.2) and manufacturers identification code (CAGE or logo), date code, and lot code. 3.5 Pure tin.
19、 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). 3.6 Recycled, recovered, or environmental
20、ly 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. Provided by IHSNot fo
21、r ResaleNo reproduction or networking permitted without license from IHS-,-,-DLA LAND AND MARITIME COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 10008 REV PAGE 5 3.7 Manufacturer eligibility. To be eligible for listing as an approved source of supply, a manufacturer shall be listed on the MIL-P
22、RF-39007, Qualified Products List for at least one part, or perform the group A and group B inspections specified herein on a sample agreed upon by the manufacturer and DLA Land and Maritime-VA. 3.7.1 Certificate of compliance. A certificate of compliance shall be required from manufacturers request
23、ing to be an approved source of supply. 3.8 Workmanship. Resistors shall be uniform in quality and free from defects that will affect life, serviceability, or appearance. 4. VERIFICATIONS 4.1 Product assurance program. The product assurance program specified in MIL-PRF-39007, and maintained in accor
24、dance with MIL-STD-790 is not applicable to this document. 4.2 Product level qualification. The product level qualification specified in MIL-PRF-39007, and MIL-STD-690 is not applicable to this document. 4.3 Conformance provisions. 4.3.1 Inspection of product for delivery. Inspection of product for
25、delivery shall consist of group A inspection (ER inspection only) and group B inspection of MIL-PRF-39007. 4.3.2 Group A inspection. Group A inspection (ER inspection only) shall be in accordance with MIL-PRF-39007, (Subgroup 1 shall consist of DC resistance only, this testing is completed through m
26、achine automation. Test data can be supplied on sampling bases in accordance with table XIII (subgroup 2) of MIL-PRF-39007 (see 6.2.d). 4.3.3 Group B inspection. Group B inspection shall be in accordance with MIL-PRF-39007. 4.3.3.1 Certification. The acquiring activity, at its discretion, may accept
27、 a certificate of compliance with group B requirements in lieu of performing group B tests (see 6.2e). 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
28、-house contractor personnel, these personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are maintained by the Inventory Control Points packaging activity within the Military Department or Defense Agency, or within the military servi
29、ces system commands. Packaging data retrieval is available from the managing Military Departments or Defense Agencys automated packaging files, CD-ROM products, or by contacting the responsible packaging activity. 6. NOTES (This section contains information of a general or explanatory nature that ma
30、y be helpful, but is not mandatory.) 6.1 Intended use. Resistors are intended for use in dc amplifiers, voltmeter multipliers, electronic computers, meters, and laboratory test equipment. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DLA LAND AND M
31、ARITIME COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 10008 REV PAGE 6 6.2 Ordering data. The contract or purchase order will specify the following: a. Complete PIN (see 1.2). b. Requirements for delivery: One copy of the conformance inspection data that parts have passed conformance inspection
32、, with each shipment of parts by the manufacturer. c. Bulk packaging requirements (see 5.1). d. Whether the manufacturer performs the group A, dc resistance sample test data (see 4.3.2). e. Whether the manufacturer performs the group B inspection or provides a certificate of compliance (see 4.3.3.1)
33、. 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
34、 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 El
35、ectrodeposited Coatings of Tin). 6.4 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 resistordla.mil o
36、r in writing to: DLA Land and Maritime-VAT, Post Office Box 3990, Columbus, OH 43218-3990 or by telephone (614) 692-0552 or DSN 850-0552. 6.5 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 thi
37、s drawing may be obtained online at resistordla.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 1
38、0008-* OAR-5 11502 International Resistive Company, INC 736 Greenway Road Boone, NC 28607-4830 1/ Parts must be purchased to the DLA Land and Maritime PIN to assure that all performance requirements and tests are met. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
