1、 INCH-POUND MIL-PRF-39009/2C 5 November 2010 SUPERSEDING MIL-PRF-39009/2B 3 July 1997 PERFORMANCE SPECIFICATION RESISTORS, FIXED, WIRE-WOUND, (POWER TYPE, CHASSIS MOUNTED), NONESTABLISHED RELIABILITY, AND ESTABLISHED RELIABILITY, STYLES RER40, RER45, RER50, AND RER55 This specification is approved f
2、or 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-39009. 1. SCOPE 1.1 Scope. This specification covers the associated requirements for nonestablished reliability and establis
3、hed reliability styles RER40, RER45, RER50, and RER55 resistors. These resistors are noninductively wound. * 1.2 Part or Identifying Number (PIN). Resistors covered by this specification are identified by a PIN which consists of the style designation, terminal, resistance, resistance tolerance, and
4、product level designator. The PIN is derived in accordance with MIL-PRF-39009 and is in the following form: RER45 F 1001 S Style Resistance tolerance Resistance Product level designator Comments, suggestions, or questions on this document should be addressed to: US Army Communications - Electronics
5、FDEC, ATTN: RDER-PRT, Fort Monmouth, NJ 07703-5201, or emailed to Robert.Francisus.army.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.daps.dla.mil. AMSC N/A FSC 5905 DISTRIBUTION STATEMENT
6、A. Approved for public release; distribution is unlimited. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39009/2C 2 2. APPLICABLE DOCUMENTS 2.1 General. The documents li
7、sted in this section are specified in section 3 and 4 of this specification. 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, docum
8、ent 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 documents. * 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a p
9、art 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-39009 - Resistors, Fixed, Wire-wound (Power Type, Chassis Mounted), Nonestablished Reliability,
10、 and Established Reliability, GSF. * (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.) * 2.3 Order of precedence. Unless otherwise noted herein or i
11、n 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 obtain
12、ed. 3. REQUIREMENTS 3.1 Requirements. The requirements for acquiring the product described herein shall consist of this document and MIL-PRF-39009. 3.2 Interface and physical dimension. Resistors shall meet the interface and physical dimensions specified on figure 1 and as specified herein. 3.2.1 We
13、ight. The maximum weight shall be as specified in table I. TABLE I. Weight. Resistor style Weight (grams, maximum) RER40 RER45 RER50 RER55 3.3 8.8 16.5 35.0 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted wit
14、hout license from IHS-,-,-MIL-PRF-39009/2C 3 Resistor style A .062 (1.57) B .010 (0.25) C .031 (0.79) D .010 (0.25) E .062 (1.57) F .062 (1.57) G .062 (1.57) H .031 (0.79) J .031 (0.79) K .005 (0.13) L .031 (0.79) M .062 (1.57) N .031 (0.79) P .005 (0.79) Q min AWG R min RER40 1.125 (28.58) 0.490 (1
15、2.45) 0.078 (1.98) 0.444 (11.28) 0.600 (15.24) 0.266 (6.76) 0.334 (8.48) 0.245 (6.22) 0.646 (16.41) 0.093 (2.36) 0.320 (8.13) 0.133 (3.38) 0.065 (1.65) 0.050 (1.27) 16 0.085 (2.16) RER45 1.375 (34.93) 0.625 (15.88) 0.094 (2.39) 0.562 (14.27) 0.750 (19.05) 0.312 (7.92) 0.438 (11.13) 0.312 (7.92) 0.81
16、2 (20.62) 0.094 (2.39) 0.406 (10.31) 0.203 (5.16) 0.094 (2.39) 0.085 (2.16) 12 0.140 (3.56) RER50 1.938 (49.23) 0.781 (19.84) 0.172 (4.37) 0.719 (18.26) 1.062 (26.97) 0.438 (11.13) 0.531 (13.49) 0.391 (9.93) 1.094 (27.79) 0.125 (3.18) 0.562 (14.27) 0.281 (7.14) 0.094 (2.39) 0.085 (2.16) 12 0.140 (3.
17、56) RER55 2.781 (70.64) 0.844 (21.44) 0.188 (4.78) 1.562 (39.67) 1.938 (49.23) 0.438 (11.13) 0.594 (15.09) 0.422 (10.72) 1.156 (29.36) 0.125 (3.18) 0.625 (15.88) 0.312 (7.92) 0.094 (2.39) 0.085 (2.16) 12 0.140 (3.56) NOTES: 1. All dimensions are in inches. 2. Metric equivalents (to the nearest .01 m
18、m) are given for general information only and are based upon 1 inch = 5.4 mm. 3. Millimeters are in parentheses. FIGURE 1. Styles RER40, RER45, RER50, and RER55 (non-inductively wound) resistors. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo r
19、eproduction or networking permitted without license from IHS-,-,-MIL-PRF-39009/2C 4 3.3 Power rating. The power rating shall be as specified in table II, based on full-load operation at an ambient temperature of 25C, when mounted on the chassis specified in 4.4 (see 6.5). TABLE II. Power rating. Res
20、istor style Power rating (watts) RER40 RER45 RER50 RER55 5 10 20 30 3.3.1 Power rating (free air). The free air (resistor not mounted on a chassis) power rating based on full load operation at 25C shall be as specified in table III. TABLE III. Power rating (free air). Resistor style Power rating (wa
21、tts) RER40 RER45 RER50 RER55 3 6 8 10 3.4 Resistance. The minimum and maximum nominal resistance values shall be as specified in table IV. TABLE IV. Minimum and maximum nominal resistance values. Resistor style Resistance values Minimum Maximum RER40 RER45 RER50 RER55 Ohms 1 1 1 1 Ohms 1,650 2,800 6
22、,040 19,600 4. VERIFICATION 4.1 Sampling and inspection. Sampling and inspection shall be in accordance with MIL-PRF-39009 and as specified herein. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without lice
23、nse from IHS-,-,-MIL-PRF-39009/2C 5 4.2 Dielectric withstanding voltage. 4.2.1 At atmospheric pressure. The magnitude of the test voltage shall be as specified in table V. TABLE V. Dielectric withstanding voltages at atmospheric pressure. Resistor style Dielectric withstanding test voltage RER40 RER
24、45 RER50 RER55 Volts (rms) 1,000 1,000 1,000 2,000 4.2.2 At reduced barometric pressure. The magnitude of the test voltage shall be 500 volts. 4.3 Terminal strength. The direct pull shall be as specified in table VI. TABLE VI. Direct pull. Resistor style Direct pull (pounds) RER40 RER45 RER50 RER55
25、5 +0, -1/4 5 +0, -1/4 10 +0, -1/2 10 +0, -1/2 4.4 Chassis dimensions. The chassis dimensions shall be as specified in table VII. TABLE VII. Chassis dimensions. Resistor style Length, width, and height Thickness RER40 RER45 RER50 RER55 Inches 6 x 4 x 2 6 x 4 x 2 7 x 5 x 2 7 x 5 x 2 Inch .04 .04 .04 .
26、04 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39009/2C 6 5. PACKAGING * 5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in t
27、he 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 Points packagi
28、ng activity within the Military Department or Defense Agency, or within the military services 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 activi
29、ty. 6. NOTES (This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.) 6.1 Intended use. In addition to the notes specified herein, the notes specified in MIL-PRF-39009 are applicable to this specification. 6.2 Acquisition requirements. Acquisi
30、tion documents must specify the following: a. Title, number, and date of this specification and the complete PIN (see 1.2). * b. Unless 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
31、requirements (see 5.1). 6.3 MIL-R-18546/1 substitution data. Resistors of this specification, regardless of failure rate (FR), are substitutes for resistors of the same resistance value and characteristic N of the inactivated specification MIL-R-18546/1 as in accordance with table VIII. TABLE VIII.
32、Substitution data. MIL-R-18546/1 characteristic N (Non-Inductive wound) Substitute MIL-PRF-39009/2 Style RE60 RE65 RE70 RE75 Style RER40 RER45 RER50 RER55 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted witho
33、ut license from IHS-,-,-MIL-PRF-39009/2C 7 NOTE: The chassis derating curves are based on the full power ratings at an ambient temperature of 25C. These curves are independent of the temperature derating curves. FIGURE 2. Chassis area derating curves. Copyright Communications - Electronics Command P
34、rovided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-39009/2C 8 6.3.1 Interchangeability. The increase in power rating for RER50 by this revision does not require the assignment of new Federal Stock Numbers for items previou
35、sly described as RE50, 15 watt rating. Items in this specification are mutually interchangeable with items of the same type designation procured under MIL-R-39009/2A. 6.4 Chassis area derating curves. Figure 2 may be used for design information. 6.5 Change in power rating RER50. The revision of styl
36、e RER50 to 20 watts from the previous 15 watt rating is based on qualification of similar style RE70 (characteristic N) under MIL-PRF-18546. In addition, the accumulated FR component hours at 15 watts have been halved for qualification FR level retention. Until sufficient hours are established at 20
37、 watts, the Qualified Products List will continue to list FR levels at the previous 15 watt rating, and in addition, the FR level at the 20 watt rating * 6.6 Changes from previous issue. The margins of this specification are marked with asterisks to indicate where changes from the previous issue wer
38、e 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 the marginal notations and relations
39、hip to the last previous issue. Custodians: Preparing activity: Army - CR Army - CR Navy - EC Air Force - 85 Agent: DLA CC DLA CC Review activities: Army - AT, AV, CR4, MI (Project 5905-2009-051) Navy - CG, MC, OS Air Force 19 NOTE: The activities listed above were interested in this document as of
40、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 https:/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-,-,-
