1、 MIL-PRF-39015/3M 5 October 2006 SUPERSEDING MIL-PRF-39015/3L 19 May 1997 PERFORMANCE SPECIFICATION SHEET RESISTORS, VARIABLE, WIRE-WOUND (LEAD-SCREW ACTUATED), NONESTABLISHED RELIABILITY AND ESTABLISHED RELIABILITY STYLE RTR24 This specification is approved for use by all Departments and Agencies o
2、f the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the associated requirements for style RTR24, lead-screw actuated, wire-wound, variable resistors. The resistors are available in a 5 percent resistance tolerance and terminal types L, P, W, and X. 1.2 Part or Identifying Numb
3、er (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 designator. The PIN is derived in accordance with MIL-PRF-39015 and in the following format. M39015/3 - 001 P
4、 M Associated specification number Resistance value designator Terminals Product level designator NOTE: The slash “/“ and the dash “-“ are needed in the procurement of this part. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this speci
5、fication. This section does not include documents cited in other sections of this specification or recommended 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 requiremen
6、ts documents cited in sections 3 and 4 of this specification, whether or not they are listed. Comments, suggestions, or questions on 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
7、 Jeffery.Carvermail1.monmouth.army.mil. Since contact information can change, you may want to verify the currency of this address information 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 unlimi
8、ted. INCH-POUND Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39015/3M 22.2 Government documents. * 2.2.1 Specifications, standards, and handbooks. The following specifi
9、cations, 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-39015 - Resistors, Variable, Wire Wound, (Lead Screw
10、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 from the Standard Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia
11、 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, supersedes applicable laws and regulations unless a specific exemption has been obtai
12、ned. 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, construction, and physical dimensions specified on figure 1. 3.3 Power rating. The power rati
13、ng 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 resolution, and maximum rated ac or dc working voltages shall be as specified in table
14、I. 3.5 Actual effective electrical travel. Actual effective electrical travel shall be 15 turns minimum, and 30 turns maximum. 3.6 Operating torque. Operating torque shall be a maximum of 5 ounce-inches. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for Re
15、saleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39015/3M 3TABLE 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 wor
16、king voltage Dash number 4/ RTR24D-100- RTR24D-200- RTR24D-500- RTR24D-101- RTR24D-201- RTR24D-501- RTR24D-102- RTR24D-202- RTR24D-502- RTR24D-103- Ohms 10 20 50 100 200 500 1,000 2,000 5,000 5/ 10,000 6/ Percent 1.3 1.1 .77 .62 .55 .51 .37 .30 .25 .19 Volts 2.7 3.8 6.1 8.7 12.3 19.4 27.4 38.7 61.3
17、86.7 001 002 003 004 005 006 007 008 009 010 1/ Complete type designation is for information only and will include additional symbols to complete type designations. 2/ Maximum resolution shown are theoretical. 3/ Maximum resolution shown is theoretical. 4/ Complete dash number will include symbols f
18、or terminal type and failure rate level. 5/ Value based on the use of wire having no less than 0.001-inch 10 percent diameter. 6/ Value based on the use of wire having no less than 0.0008-inch 10 percent diameter. 3.7 Weight. The maximum weight shall be .00286 pound (1.3 grams). 4. VERIFICATION 4.1
19、Sampling and inspection. Sampling and inspection shall be in accordance with MIL-PRF-39015. 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 co
20、ntractor personnel, these personnel need to contact the responsible packaging 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
21、 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. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for Re
22、saleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39015/3M 4FIGURE 1. Style RTR24 resistors. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF
23、-39015/3M 5INCHES .006 .010 .015 .020 .024 .025 .030 .075 .080 .100 .125 .170 .197 .300 .375 .420 mm 0.15 0.25 0.38 0.51 0.61 0.64 0.76 1.91 2.03 2.54 3.18 4.32 4.75 7.62 9.53 10.67 NOTES: 1. Dimensions are in inches. 2. Unless otherwise specified, tolerance is .005 (.13 mm). 3. Metric equivalents (
24、to the nearest .01 mm) are given for general information. 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 picturization of the styles above are given as representative of the envelope of t
25、he 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. 7. The three leads shall be of the stranded wire, AWG size 28 to size 30, having a minimum length of 6 (152.4 mm); they shall be insulated
26、 with polytetrafluoroethylene, stripped .250 .062 (6.35 mm 1.57 mm) from the end, and color coded. FIGURE 1. Style RTR24 resistors - Continued. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license
27、from IHS-,-,-MIL-PRF-39015/3M 66. NOTES (This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.) 6.1 Notes. In addition to the notes specified herein, the notes specified in MIL-PRF-39015 are applicable to this specification. 6.2 Acquisition r
28、equirements. Acquisition documents must specify the following: a. Title, number, date of the specification, and complete PIN. * b. If not otherwise 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. Packagin
29、g requirements (see 5.1). * 6.3 MIL-PRF-27208 substitution data. Resistors of MIL-PRF-39015/3 regardless of their failure rate designation, are substitutes for resistors of the same resistance value, tolerance, terminal characteristic, and resistance temperature specified in the specification MIL-PR
30、F-27208/9. 6.4 Suppression data. Style RTR24 resistors with terminal types P, W, and X is interchangeable with resistors having the same terminal designation under MIL-PRF-39015/3J. The change in dimensions do not require the assignment of a new National Stock Number (NSN) where a NSN had previously
31、 been assigned to these items under revisions E, F, G, H, or J of this specification. * 6.5 Changes from previous issue. The margins of this specification are marked with asterisks to indicate where changes from the previous issue were made. This was done as a convenience only and the Government ass
32、umes 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 the marginal notations and relationship to the last previous issue. Custodians: Preparing activity: Ar
33、my - CR Army - CR Navy - EC Air Force - 11 Agent: DLA - CC Review activities: (Project 5905-2006-036) Army - AR, AT, AV, CR4, MI Navy - AS, MC, OS Air Force - 19 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibiliti
34、es 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-,-,-
