DLA DSCC-DWG-06021 REV C-2012 RESISTORS FIXED BULK METAL FOIL HIGH PRECISION SURFACE MOUNT MOLDED 0 6 4 WATTS.pdf
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1、 REVISIONS LTR DESCRIPTION DATE APPROVED A Part number addition 1 Nov 2007 M. Radecki B Vendor recommended changes. Current DoD requirements. Editorial requirements throughout 15 Sept 2009 M. Radecki C Vendor address change. Editorial changes throughout. 13 Sept 2012 M. Radecki Prepared in accordanc
2、e with ASME Y14.100 Source control drawing REV STATUS OF PAGES REV C C C C C C C C PAGES 1 2 3 4 5 6 7 8 PMIC N/A PREPARED BY Jesus V. Garcia III DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OH Original date of drawing 17 July 2006 CHECKED BY Andrew R. Ernst TITLE RESISTORS, FIXED, BULK METAL FOIL, HIG
3、H PRECISION, SURFACE MOUNT, MOLDED 0.6/.4 WATTS APPROVED BY Michael A. Radecki SIZE A CODE IDENT. NO. 037Z3 DWG NO. 06021 REV C PAGE 1 OF 8 AMSC N/A 5905-2010-E06 CURRENT DESIGN ACTIVITY CAGE CODE 037Z3 HAS CHANGED NAMES TO: DLA LAND AND MARITIME COLUMBUS, OHIO 43218-3990 Provided by IHSNot for Resa
4、leNo reproduction or networking permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 06021 REV C PAGE 2 1. SCOPE 1.1 Scope. This drawing describes the requirements for a molded, surface mounted bulk metal foil, high precision, 0.6/
5、.4 watts resistor. 1.2 Part or Identifying Number (PIN). The complete PIN is as follows: 06021 - * * * Drawing number Resistance value (see 3.3.1 and 3.3.2) Tolerance (see 3.3.3) Power Rating (see 3.3.4) 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The follow
6、ing 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 listed in the cited in the solicitation or contract (see 6.2). DEPARTMENT OF DEFENSE SPECIFICATION MIL-PRF-55182 - Resistors, F
7、ixed, Film, 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 - Standard Practice for Established Reliability and High Reliability Qualified Products Li
8、st (QPL) Systems for Electrical, Electronic, and Fiber Optic Parts Specifications. (Copies of these documents are available online at https:/assist.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.2 Order of preced
9、ence. 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 (except for related specification sheets), the text of this document takes precedence unless otherwise noted. Nothing in this document, however, supers
10、edes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Item requirements. The individual item requirements shall be as specified herein. 3.2 Interface and physical dimensions. The interface and physical dimensions shall be as specified in MIL-PRF-5518
11、2 and herein (see figure 1). Passivation is not applicable, however, a protective coating over the element shall be provided. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 D
12、WG NO. 06021 REV C PAGE 3 L W H P TH TW .287 .012 (7.30 0.30) .170 .012 (4.30 0. 300) .110 .012 (2.80 0. 300) .051 .012 (1.30 0.30) .039 MIN (1.00 MIN) .095 .004 (2.40 0.10) NOTES: 1. Dimensions are in Inches. Metric equivalents are given for general information only. 2. The pictorial view of the st
13、yles above is 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. FIGURE 1. Bulk metal foil resistor. 3.3 Electrical characteristics 3.3.1 Resista
14、nce. The nominal resistance expressed in ohms is identified by six characters, consisting of five digits and a letter. the letter is used simultaneously as a decimal point and as a multiplier. For resistance values: a. Greater than or equal to 1 ohm but less than 1,000 ohms, the letter “R“ is used t
15、o represent a decimal point. b. Greater than or equal to 1,000 ohms but less than 1 megohm, the letter “K“ is used to denote that a decimal point is located three places to the right All digits preceding and following the letters (R or K) of the group represent significant figures. The resistance va
16、lue designations are shown in Table I. Minimum and maximum resistance values shall be as specified in 3.3.2. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 06021 REV
17、C PAGE 4 TABLE I. Designation of resistance values. Designation Resistance ohms 5R0000 100R00 1K0000 10K000 to to to to 99R999 incl. 999R99 incl. 9K9999 incl. 65K000 incl. 5 100 1,000 10,000 to to to to 99.999 999.99 9,999.9 65,000 incl. incl. incl. incl. 3.3.2 Resistance range and resistance temper
18、ature characteristic. The resistance range shall be from 5 ohms to 65 kilohms. The corresponding resistance temperature characteristic is specified in table II. TABLE II. Resistance range and resistance temperature characteristic. Resistance range (in ohms) Resistance Temperature Characteristic (RTC
19、) in ppm/OC Power rating (see 3.3.4) Voltage rating (in volts, maximum) (see 3.3.5) 50 - 80K 5 Blank 1/ 180 1/ 20 - 50 6 10 - 20 8 5 - 10 10 50 - 80K 2 A 1/ 20 - 50 3 10 - 20 5 5 - 10 7 50 - 65K 5 B 161 20 - 50 6 10 - 20 8 5 - 10 10 50 - 65K 2 C 20 - 50 3 10 - 20 5 5 - 10 7 1/ Inactive for new desig
20、n with corresponding resistance range and RTC. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 06021 REV C PAGE 5 3.3.3 Resistance tolerance. Resistors are available i
21、n resistance tolerances as specified in table III. TABLE III. Resistance tolerance. Symbol Resistance tolerance percent Available resistance range (in ohms) T 1/ 0.01 50 - 80K Q 0.02 A 0.05 20 - 65K B 0.1 10 - 65K C 0.25 5 - 65K D 0.5 F 1.0 1/ Inactive for new design 3.3.4 Power rating. The power ra
22、tings are at 70OC and 125OC derated to +175OC at zero power (see figure 2) and are specified in table IV. TABLE IV. Power rating and resistance temperature characteristic. Symbol Resistance range (in ohms) Power rating at 70OC (Watts) Power rating at 125OC (Watts) B 5 to 30K .6 .3 C 30K and above .4
23、 .2 FIGURE 2. Derating curve. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 06021 REV C PAGE 6 3.3.5 Voltage rating. The maximum continuous working voltage shall not
24、 exceed 161 volts. 3.3.6 Termination. The termination material shall be in accordance with MIL-PRF-55182. 3.3.6.1 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,
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