1、 MIL-PRF-39015/2J 5 October 2006 SUPERSEDING MIL-PRF-39015/2H 19 May 1997 PERFORMANCE SPECIFICATION SHEET RESISTORS, VARIABLE, WIRE-WOUND (LEAD-SCREW ACTUATED), NONESTABLISHED RELIABILITY AND ESTABLISHED RELIABILITY STYLE RTR22 TERMINATION “L” IS INACTIVE FOR NEW DESIGN (see 6.5) This specification
2、is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE * 1.1 Scope. This specification covers the associated requirements for style RTR22, lead-screw actuated, wire-wound, variable resistors. The resistors are available in a 5 percent resistance tolerance and term
3、inal types L (inactive for new design), P, W, and X. * 1.2 Part or Identifying Number (PIN). Resistors covered by this specification are identified by a PIN which consists of the document number and slash sheet, resistance value designator, terminal type, and product level. The PIN is derived in acc
4、ordance with MIL-PRF-39015 and in the following format. M39015/2 - 001 P M Associated specification number Resistance value designator Terminals (see 6.5) Product level designator NOTE: The slash “/“ and the dash “-“ are needed in the procurement of this part. Comments, suggestions, or questions on
5、this document should be addressed to: US Army Communications-Electronics Command and Fort Monmouth, ATTN: AMSEL-LC-LEO-E-EP, Fort Monmouth, NJ 07703-5023 or emailed to Jeffery.Carvermail1.monmouth.army.mil. Since contact information can change, you may want to verify the currency of this address inf
6、ormation using the ASSIST Online database at http:/assist.daps.dla.mil. AMSC N/A FSC 5905 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. INCH-POUND Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction o
7、r networking permitted without license from IHS-,-,-MIL-PRF-39015/2J 22. 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 or recommende
8、d for additional information or as examples. While every effort has been made to ensure the completeness of this list, document user are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government
9、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. DEPARTMENT OF DE
10、FENSE SPECIFICATIONS MIL-PRF-39015 - Resistors, Variable, Wire Wound, (Lead Screw Actuated), Nonestablished Reliability and Established Reliability, General Specification for. (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch/ or http:/assist.daps.dla.mil or fr
11、om the Standard Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia PA 19111-5094.) 2.3 Order of precedence. 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, sup
12、ersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 General. The requirements for acquiring the product described herein shall consist of this document and MIL-PRF-39015. 3.2 Design and construction. Resistors shall be of the design, constructio
13、n, and physical dimensions specified on figure 1. 3.3 Power rating. The power rating shall be 3/4 watt, based on full load operation at an ambient temperature of 85C. 3.4 Nominal resistance value, maximum resolution, and maximum rated ac or dc working voltage. Nominal resistance value, maximum resol
14、ution, and maximum rated ac or dc working voltages shall be as specified in table I. 3.5 Actual effective electrical travel. Actual effective electrical travel shall be 20 turns minimum, and 42 turns maximum. 3.6 Operating torque. Operating torque shall be a maximum of 5 ounce-inches. 3.7 Weight. Th
15、e maximum weight shall be .00529 pound (2.4 grams). Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39015/2J 34. VERIFICATION 4.1 Sampling and inspection. Sampling and ins
16、pection shall be in accordance with MIL-PRF-39015. TABLE I. Nominal resistance value, and maximum resolution, and maximum rated ac or dc working voltage. Type designation 1/ Nominal resistance value (in ohms) 2/ Maximum resolution 3/ Maximum rated ac or dc working voltage Dash number 4/ RTR22D-100-
17、RTR22D-200- RTR22D-500- RTR22D-101- RTR22D-201- RTR22D-501- RTR22D-102- RTR22D-202- RTR22D-502- RTR22D-103- RTR22D-203- Ohms 10 20 50 100 200 500 1,000 2,000 5,000 5/ 10,000 6/ 20,000 Percent 1.3 1.0 .80 .51 .42 .42 .36 .29 .26 .14 .11 Volts 2.7 3.8 6.1 8.7 12.3 19.4 27.4 38.7 61.3 86.7 122.0 009 01
18、0 011 001 002 003 004 005 006 007 008 1/ Type designation is for information only and will include additional symbols to complete type designations. 2/ For Navy use, resistance values shall be based on the use of wire having no less than .001-inch nominal (.0009 absolute) diameter. 3/ Maximum resolu
19、tion shown is theoretical. 4/ Complete dash number will include symbols for terminal type and failure rate level. 5/ Value based on the use of wire having no less than .001-inch nominal (.0009 absolute) diameter. 6/ Value based on the use of wire having no less than .0008-inch nominal (.00072 absolu
20、te) diameter. 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
21、activity to ascertain packaging requirements. Packaging requirements are maintained by the Inventory Control Points packaging activities within the Military Service or Defense Agency, or within the military services system commands. Packaging data retrieval is available from the managing Military De
22、partments 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 may be helpful, but is not mandatory.) Copyright Communications - Electronics Command Prov
23、ided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39015/2J 46.1 Notes. In addition to the notes specified herein, the notes specified in MIL-PRF-39015 are applicable to this specification. FIGURE 1. Style RTR22 resistors. Co
24、pyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39015/2J 5INCHES .002 .005 .006 .007 .010 .015 .020 .025 .028 .035 .045 .050 .060 .063 .073 .078 .093 .100 .172 .187 .205 .23
25、5 .250 .260 .500 .515 .520 mm 0.05 0.13 0.15 0.18 0.25 0.38 0.51 0.64 0.71 0.89 1.14 1.27 1.52 1.60 1.85 1.98 2.36 2.54 4.37 4.75 5.21 5.97 6.35 6.60 12.70 13.08 13.21 NOTES: 1. Dimensions are in inches. 2. Unless otherwise specified, tolerance is .005 (.13 mm). 3. Metric equivalents (to the nearest
26、 .01 mm) are given for general information only. 4. The entire slot of the actuating screw must be above the surface of the unit. 5. For types P, W, and X, normal mounting means is by use of pins only. 6. The three leads shall be of the stranded wire, AWG size 28 to 30, having a minimum length of 6
27、(152.4 mm); they shall be insulated with polytetrafluoroethylene, stripped .250 .062 (6.35 1.57 mm) from the end, and color coded. 7. Dimensions not shown are the same as for type P. 8. The picturization of the styles above are given as representative of the envelope of the item. Slight deviations f
28、rom the outline shown, which are contained within the envelope, and do not alter the functional aspects of the device are acceptable. 9. Mounting holes and/or slots are optional for terminal styles P, W, and X. FIGURE 1. Style RTR22 resistors - Continued. Copyright Communications - Electronics Comma
29、nd Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39015/2J 66.2 Acquisition requirements. Acquisition documents must specify the following: a. Title, number, date of the specification, and complete PIN. * b. If not ot
30、herwise specified (see 2.1), the versions of the individual documents referenced will be those in effect on the date of release of the solicitation. c. Packaging requirements (see 5.1). * 6.3 MIL-PRF-27208 substitution data. Resistors of MIL-PRF-39015/2 regardless of their failure rate designation a
31、re substitutes for resistors of the same resistance value, tolerance, terminal characteristic, and resistance temperature specified in the specification MIL-PRF-27208/4. * 6.4 Tin whisker growth. The use of alloys with tin content greater than 97 percent, by mass, may exhibit tin whisker growth prob
32、lems 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
33、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). * 6.5 Caution note. The QPL manufacturer of the “L” termination of this slash sheet has always us
34、ed 100 percent tin plating on their internal tabs. Termination “L” is inactive for new design, and designers are cautioned on using the “L” termination for replacement purposes (see 6.4). * 6.6 Changes from previous issue. The margins of this specification are marked with asterisks to indicate where
35、 changes from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of
36、the marginal notations and relationship to the last previous issue. Custodians: Preparing activity: Army - CR Army - CR Navy - EC Air Force - 11 Agent: DLA - CC Review activities: (Project 5905-2006-035) Army - AR, AT, AV, CR4, MI Navy - AS, MC, OS Air Force - 19 NOTE: The activities listed above we
37、re interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at http:/assist.daps.dla.mil. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
