1、 REVISIONS LTR DESCRIPTION DATE APPROVED A Add new vendor. Editorial changes throughout. 20 APR 2010 Michael A. Radecki B Correct paragraph 4.4 example 2 critical resistance value sign to “”. Editorial change throughout. 14 FEB 2013 Michael A. Radecki Prepared in accordance with ASME Y14.100 Source
2、control drawing REV STATUS OF PAGES REV B B B B B B B B PAGES 1 2 3 4 5 6 7 8 PMIC N/A PREPARED BY Andrew R. Ernst DESIGN ACTIVITY: DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OH Original date of drawing: CHECKED BY Andrew R. Ernst TITLE RESISTOR, CHIP, FIXED, FILM, 11 February 2009 APPROVED BY Michae
3、l Radecki MOISTURE RESISTANT, MILITARY and SPACE LEVEL, STYLE 0201 SIZE A CODE IDENT. NO. 037Z3 DWG NO. 07010 REV B PAGE 1 OF 8 AMSC N/A 5905-2013-E26 CURRENT DESIGN ACTIVITY CAGE CODE 037Z3 HAS CHANGED NAMES TO: DLA LAND AND MARITIME COLUMBUS, OHIO 43218-3990 Provided by IHSNot for ResaleNo reprodu
4、ction or networking permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 07010 REV B PAGE 2 1. SCOPE 1.1 Scope. This drawing describes the requirements for a 0.020 by 0.010 chip resistor, which is resistant to the degrading effects
5、 of moisture while under power. 1.2 Part or Identifying Numbers (PINs). The complete PINs are shown in the examples below. The first example is for general military applications. The second example is for space type applications and requires adding a code letter to the end of the original PIN. NOTE:
6、 Example of military level PIN. 07010 - * * * * | | | | | | | | | | Drawing number Characteristic (see 3.3.1) Resistance (see 3.3.2) Tolerance (see 3.3.3) Termination material (see 3.3.4) NOTE: Example of space level PIN (codes A the first three digits represent significant figures and the last digi
7、t specifies the number of zeros to follow. When the value of resistance is less than 100 ohms, or when fractional values of an ohm are required, the letter “R“ shall be substituted for one of the significant figures. The resistance value designations are shown in table I. Minimum and maximum resista
8、nce values shall be as specified in MIL-PRF-55342. Resistance values not listed in the “10 to 100“ decade table of MIL-PRF-55342 for the appropriate resistance tolerance shall be considered as not conforming to the specification. TABLE I. Resistance value designations. Designation Resistance ohms 10
9、R0 to 98R8 incl. 1000 to 9880 incl. 1001 to 9881 incl. 1002 to 9882 incl. 1003 to 9883 incl. 1004 10.0 to 98.8 incl. 100.0 to 988.0 incl. 1,000.0 to 9,880.0 incl. 10,000.0 to 98,800.0 incl. 100,000.0 to 988,000.0 incl. 1,000,000.0 3.3.2.1 Resistance range. The resistance range shall be 10 ohm to 1 m
10、egohms and as specified herein (see 6.7). 3.3.3 Resistance tolerance. Resistors are available in resistance tolerances as specified in table II and herein (see 6.7). 3.3.4 Termination material. Termination material shall be identified by a single letter as specified in MIL-PRF-55342 and herein (see
11、6.7). 3.3.4.1 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, by mass. Tin shall be alloyed with a minimum of 3 percent lead, by mass (see 6.3). Provided by IHSNot
12、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 07010 REV B PAGE 4 4 TABLE II. Resistance tolerance. Symbol Resistance tolerance percent F J 1.0 5.0 3.3.5 Product level testing. The pro
13、duct level testing shall be designated by the military and space level PINs (see 1.2, 4.3.2, 4.3.3, and 6.7). 3.3.6 Power rating. The power rating for this chip resistor shall be 0.05 watts. 3.3.7 Voltage rating. The maximum continuous working voltage shall be 30 volts. 3.3.8 Power moisture resistan
14、ce. When resistors are tested as specified in 4.4, there shall be no evidence of mechanical damage; the change in resistance between the initial and final measurements shall not exceed the limits as specified in the moisture resistance requirements of MIL-PRF-55342. Samples subjected to this test sh
15、all not be delivered on the contract or order. 3.3.9 Outgassing (space levels A and T). Outgassing shall be performed as specified in MIL-PRF-55342. 3.4 Marking. Marking is not required on the resistor; however, each unit package shall be marked with the PIN assigned herein (see 1.2), vendor CAGE co
16、de, and date and lot codes. 3.5 Manufacturers eligibility (military applications). The approved sources of supply listed on this drawing shall be qualified to at least one product on the Qualified Products List for MIL-PRF-55342. They shall have successfully passed the power moisture resistance test
17、 as witnessed and certified by an official company representative with 30 samples (10 low, 10 critical, 10 high) with zero defects. If the manufacturer has already performed the power moisture resistance test to any of the following drawings (94012, 94013, 94014, 94015, 94016, 94017, 94018, 94019, 9
18、4025, 94026, 04007, 04008, or 04009) then performance of the power moisture resistance test as a prerequisite for being a source of supply is not required. 3.5.1 Manufacturers eligibility (space levels A and T). Only approved sources of supply qualified to “T” failure rate level of MIL-PRF-55342 and
19、 approved to the general military level of this drawing may supply to space level codes A and T. Furthermore all testing for these levels shall be done on a production lot basis as defined in MIL-PRF-55342. Test deletion or reduction, which may be granted for ER level product, is not allowed for spa
20、ce level codes A and T of this document. 3.5.2 Certificate of compliance. A certificate of compliance shall be required from manufacturers requesting to be listed as an approved source of supply. 3.6 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentall
21、y preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements and promotes economically advantageous life cycle costs. 3.7 Workmanship. Resistors shall be uniform in quality and free from any defects that
22、 will affect life, serviceability, or appearance. 4. VERIFICATION 4.1 Product assurance program. The product assurance program specified in MIL-PRF-55342 and maintained in accordance with MIL-STD-790 is not applicable to this document. Provided by IHSNot for ResaleNo reproduction or networking permi
23、tted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 07010 REV B PAGE 5 5 Configuration A Configuration B Configuration Dimension A Inches Dimension B Inches Dimension C Inches Dimension D Inches Dimension E Inches A 0.6 0.05 0.3 0.05 0
24、.23 0.05 0.15 0.05 N/A B 0.6 0.05 0.3 0.05 0.23 0.05 0.15 0.07 0.15 +0.05 -0.10 NOTES: 1. Dimensions are in millimeters. 2. Inches equivalents are given for general information only. 3. The pictorial view of the styles above is given as representative of the envelope of the item. Slight deviations f
25、rom the outline shown, which are contained within the envelope, and do not alter the functional aspects of the device are acceptable. FIGURE 1. Chip resistor. mm Inches 0.05 0.002 0.07 0.003 0.10 0.004 0.15 0.006 0.23 0.009 0.30 0.012 0.60 0.024 Provided by IHSNot for ResaleNo reproduction or networ
26、king permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 07010 REV B PAGE 6 6 4.2 Product level qualification. The product level qualification specified in MIL-PRF-55342 and MIL-STD-690 is not applicable to this document. 4.3 Conf
27、ormance inspection. 4.3.1 Inspection of product for delivery (military level). Inspection of product for delivery for each PIN ordered shall consist of group A inspection and group B inspection of MIL-PRF-55342, ER level. Additionally 5 samples of each PIN ordered shall be subjected to the power moi
28、sture resistance test specified herein with 0 defects allowed. 4.3.1.1 Certification (military level only). The procuring activity may accept a certificate of compliance in lieu of performing group B inspection and the power moisture resistance test (see 6.2d). 4.3.2 Inspection of product for delive
29、ry (space level code A). Inspection of product for delivery for each PIN ordered shall consist of group A inspection and group B inspection of MIL-PRF-55342, space level. Additionally 10 samples of each PIN ordered shall be subjected to the power moisture resistance test specified herein (see 4.4) w
30、ith 0 defects allowed. The group C life test shall be performed as specified in MIL-PRF-55342 except the test shall be from each production lot for 1000 hours, 22 samples for each value ordered with 0 defects. NOTE: Test samples subjected to Group B, Group C, and the power moisture resistance test h
31、erein shall not be delivered on the contract or order. 4.3.3 Inspection of product for delivery (space level code T). Inspection of product for delivery for each PIN ordered (each production lot) shall consist of group A, group B, and group C inspection of MIL-PRF-55342, space level. Resistance to s
32、oldering heat and resistance to bonding exposure shall be as specified in MIL-PRF-55342 except 10 samples for each PIN ordered, followed by power moisture resistance as specified herein (see 4.4) performed on the same set of samples with 0 defects for the subgroup. The group C life test shall be per
33、formed as specified in MIL-PRF-55342 except the test shall be for 1000 hours, 22 samples for each value ordered with 0 defects. Thermal shock and low temperature operation shall be as specified in MIL-PRF-55342 except 10 samples for each PIN ordered with 0 defects. High temperature exposure shall be
34、 as specified in MIL-PRF-55342 except the test shall be for 100 hours, 10 samples with 0 defects. NOTE: Test samples subjected to Group B, Group C, and the power moisture resistance test herein shall not be delivered on the contract or order. 4.3.4 Solder mounting integrity. The solder mounting inte
35、grity for group B inspection (all levels) shall be .5 kilograms. 4.4 Power moisture resistance. Power moisture resistance test shall be performed as specified in MIL-PRF-55342 except the loading voltage shall be as follows: Loading voltage: The loading voltage shall be equal to 10 percent rated powe
36、r for resistance values less than or equal to the critical resistance value as shown in example number 1. For values greater than or equal to the critical resistance value the loading voltage shall be as shown in example number 2. EXAMPLE 1 EXAMPLE 2 Characteristic: “K“ Characteristic: “K“ Rated wat
37、tage: 0.050 watts (P) Voltage rating: 30 volts (V) Value: 2000 ohms (R) PRV 1.= (for “R” critical res.) 1.=V x V (for “R” critical res.) = ( )( )200005.1. = .316 x 30 = 10 = 9.48 volts = 3.16 volts Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFE
38、NSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 07010 REV B PAGE 7 7 4.5 Visual and mechanical examination. Resistors shall be examined to verify that the materials, design, construction, physical dimensions, marking, and workmanship are in accordance with the applicab
39、le requirements of MIL-PRF-55342. 4.6 Data retention (codes A & T). Data retention for space level products shall be per the requirements of MIL-PRF-55342. 5. PACKAGING 5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see 6.2). When
40、packaging of materiel is to be performed by DoD or in-house personnel, these personnel need to contact the responsible packaging activity to ascertain requisite packaging requirements. Packaging requirements are maintained by the Inventory Control Points packaging activities within the Military Serv
41、ice 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 activity. 6. NOTES (This section contains inf
42、ormation of a general or explanatory nature that may be helpful, but is not mandatory.) 6.1 Intended use. Chip resistors are intended for use in thick or thin film circuits where microcircuitry is intended. Chip resistors can also be used in surface mount applications. 6.2 Ordering data. The contrac
43、t or purchase order should specify the following: a. Complete PIN (see 1.2). b. Requirements for delivery: One copy of the conformance inspection variables and attributes data that parts have passed conformance inspection, with each shipment of parts by the manufacturer. c. Packaging requirements (s
44、ee 5.1). d. Whether the manufacturer performs the group B inspection and the moisture resistance test or provides a certificate of compliance (see 4.3.1.1, military level only). 6.3 Tin whisker growth. The use of alloys with tin content greater than 97 percent, by mass, may exhibit tin whisker growt
45、h 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 such materials. Conformal coatings applied over top of a whisker-prone surface will not prevent the formation of tin whiskers. A
46、lloys 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). 6.4 Electrostatic charge. Under several combinations of conditions, these resistors can be
47、electrically damaged, by electrostatic charges, and drift from specified value. Users should consider this phenomena when ordering or shipping resistors. Direct shipment to the Government is controlled by MIL-DTL-39032, which specifies a preventive packaging procedure. 6.5 Pulse applications. Design
48、ers are CAUTIONED on using the above resistors in high power pulse applications. Since they have not been qualified nor tested for such applications, damage and premature failure are possible. These resistors only see a one time pulse (Short-time overload) as part of the group B inspection of MIL-PR
49、F-55342. 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. 07010 REV B PAGE 8 8 * 6.6 Users of record. Coordination of this document for future revisions is coordinated only with the approved sources of suppl
