1、Comments, suggestions, or questions on this document should be addressed to: Defense Supply Center, Columbus, ATTN: DSCC-VAT, Post Office Box 3990, Columbus, Ohio 43218-3990 or by email Resistordla.mil. Since contact information can change, you may want to verify the currency of this address informa
2、tion using the ASSIST Online database at http:/assist.daps.dla.mil/ . AMSC N/A FSC 5905 INCH-POUND MIL-PRF-39035/4G 2 April 2008 SUPERSEDING MIL-PRF-39035/4F 12 February 1998 PERFORMANCE SPECIFICATION RESISTORS, VARIABLE, NONWIREWOUND (ADJUSTMENT TYPE, SINGLE TURN), NONESTABLISHED RELIABILITY, AND E
3、STABLISHED RELIABILITY STYLE RJR50 This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-PRF-39035. 1. SCOPE 1.1 Scope. This specification cove
4、rs the requirements for style RJR50, nonestablished reliability, and established reliability, adjustment type, single turn, nonwire-wound, variable resistors. This style is available in characteristic F and H. 1.2 Part or Identifying Number (PIN). Resistors covered by this specification is identifie
5、d by a PIN which consists of a basis style of this specification and a coded number. The PIN is in the following form: RJR50 FP102M Specification style number Coded number 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specificatio
6、n. 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 users are cautioned that they must meet all specified requirements doc
7、uments cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 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 speci
8、fied, the issues of these documents are those cited in the solicitation or contract (see 6.2). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39035/4G 2 DEPARTMENT OF DEFENSE SPECIFICATION MIL-PRF-39035 - Resistors, Variable, Nonwirewound (A
9、djustment Type), 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 Standardization Document Order Desk, 700 Robbins Avenue, Building 4D,
10、 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 (except for related specification sheets), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws an
11、d 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-39035. 3.2 Interface and physical dimension requirements. Resistors shall meet the interface and physical d
12、imensions specified on figure 1. 3.3 Power rating. The power rating shall be 1/4 watt for characteristics F and H. 3.4 Terminals. Characteristics F and H are available in P- type terminal. 3.5 Nominal resistance value and maximum rated ac or dc working voltage. Nominal resistance values and maximum
13、rated ac or dc working voltages shall be as specified in table I. 3.5.1 Resistance value deviations. All maximum deviations as specified in this section are to be considered absolute limits with the exception of the contact resistance adjustments. 3.6 Actual effective electrical travel. Actual effec
14、tive electrical travel shall be 215 degrees, minimum. 3.7 Torque. 3.7.1 Operating. Operating torque shall be a maximum of 2.0 ounces-inches. 3.7.2 Stop. The stop shall withstand a force of 4 ounce-inches when this amount of torque is applied through the operating shaft to the stop. 3.8 Maximum volta
15、ge. Maximum rated ac or dc working voltage shall be 200 volts. 3.9 Pure 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
16、 3 percent lead, by mass (see 6.5). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39035/4G 3 3.10 Marking. Due to size limitations, this style resistor shall be marked with the following minimum information: 7523A - Date code, lot code FP10
17、2MJ - Characteristic, terminal, resistance value, failure rate and JAN marking 12345 - Source code The complete marking is required on the unit package. 3.11 Weight. The weight is .021 ounces (0.6 grams). Inches mm Inches mm Inches mm Inches mm .001 0.03 .015 0.38 .025 0.64 .172 4.37 .002 0.05 .016
18、0.41 .100 2.54 .250 6.35 .010 0.25 .020 0.51 .110 2.79 NOTES: 1. Dimensions are in inches. 2. Unless otherwise specified, tolerance is .005 (0.13 mm). 3. Metric equivalents are given for general information only. 4. Mounting means are by use of pins only. 5. The picturization of the styles above are
19、 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. 6. The head of the actuating screw may or may not be flush with or recessed in the body. FIGU
20、RE 1. Style RJR50 resistors. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39035/4G 4 TABLE I. Nominal resistance value and maximum rated ac or dc working voltage. Nominal resistance value (in Ohms) Maximum rated ac or dc working voltage pe
21、r characteristics C, F, and H Nominal resistance value (in Ohms) Maximum rated ac or dc working voltage per characteristics C, F, and H 10 1.58 20,000 70.7 20 2.23 25,000 79.0 50 3.54 50,000 111 100 5.0 200 7.07 megohms 500 11.1 0.10 158 1,000 15.8 0.20 200 2,000 22.3 0.25 200 5,000 35.4 0.50 200 10
22、,000 50.0 1.00 200 4. VERIFICATION 4.1 Sampling and inspection. Sampling and inspection shall be in accordance with MIL-PRF-39035. 4.2 Visual and mechanical inspection. Visual and mechanical inspection shall be in accordance with MIL-PRF-39035. 4.3 Dielectric withstanding voltage. The magnitude of t
23、est voltage shall be 600 volts rms at atmospheric pressure, and 250 volts rms at reduced barometric pressure. 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 Do
24、D 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 Points packaging activity within the Military Service or Defense Agency, or within the military s
25、ervices 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
26、 may be helpful, but not mandatory.) 6.1 Intended use. The notes specified in MIL-PRF-39035 are applicable to this specification. 6.2 Acquisition requirements. Acquisition documents must specify the following: a. Title, number, and date of this specification, and the complete PIN (see 1.2). b. If no
27、t 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. Packaging instructions (see 5.1). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3903
28、5/4G 5 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
29、 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 f
30、or Electrodeposited Coatings of Tin). 6.4 Environmentally preferable material. Environmentally preferable materials should be used to the maximum extent possible to meet the requirements of this specification. As of the dating of this document, the U.S. Environmentally Protection Agency (EPA) is foc
31、using efforts on reducing 31 priority chemicals. The list of chemicals is available on their website at http:/www.epa.gov/epaoswer/hazwaste/minimize/chemlist.htm. Further information is available at the following EPA site: http:/www.epa.gov/epaoswer/hazwaste/minimize/. Included in the EPA list of 31
32、 priority chemicals are cadmium, lead, and mercury. Use of the materials on the list should be minimized or eliminated unless needed to meet the requirements specified herein (see section 3). 6.6 Changes from previous issue. The margins of this specification are marked with vertical lines to indicat
33、e where 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 irrespect
34、ive of the marginal notations and relationship to the last previous issue. Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air Force - 11 DLA - CC Review activities: (Project 5905-2008-039) Army - AR, AT, AV, CR4, MI Navy - AS, MC, OS Air Force - 19, 99 NOTE: The activities listed above
35、 were 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. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
