1、 REVISIONS LTR DESCRIPTION DATE APPROVED A Add requirements for space level and update to present DoD policy requirements. 27 JAN 2006 Michael A. Radecki B Paragraph 4.3.3; change HTE from 1000 hours to 100 hours. Add pure tin prohibition. Editorial corrections throughout. 14 APR 2006 Michael A. Rad
2、ecki C Add vendor. Extend vendors resistance range and tolerances. Add pulse application paragraph. Editorial corrections throughout 5 AUG 2011 Michael A. Radecki D Correct paragraph 4.4 example 2 critical resistance value sign to “”. Editorial change throughout. 14 FEB 2013 Michael A. Radecki Prepa
3、red in accordance with ASME Y14.100 Source control drawing REV STATUS OF PAGES REV D D D D D D D D D PAGES 1 2 3 4 5 6 7 8 9 PMIC N/A PREPARED BY Dennis L. Cross DESIGN ACTIVITY: DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OH Original date of drawing CHECKED BY Andrew R. Ernst TITLE RESISTOR, CHIP, FI
4、XED, FILM, MOISTURE RESISTANT, MILITARY and SPACE LEVEL, STYLE 0302 2 March 2004 APPROVED BY Kendall A. Cottongim SIZE A CODE IDENT. NO. 037Z3 DWG NO. 04007 REV D PAGE 1 OF 9 AMSC N/A 5905-2013-E23 CURRENT DESIGN ACTIVITY CAGE CODE 037Z3 HAS CHANGED NAMES TO: DLA LAND AND MARITIME COLUMBUS, OHIO 432
5、18-3990 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. 04007 REV D PAGE 2 1. SCOPE 1.1 Scope. This drawing describes the requirements for a 0.030 by 0.020 chip resist
6、or, which is resistant to the degrading effects 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. (NOTE: This PIN is the original PIN shown in previous revisions of this dr
7、awing). The second example is for space type applications and requires adding a code letter to the end of the original PIN. NOTE: Example of military level PIN. 04007 - * * * * | | | | | | | | | | Drawing number Characteristic (see 3.3.1) Resistance (see 3.3.2) Tolerance (see 3.3.3) Termination mate
8、rial (see 3.3.4) NOTE: Example of space level PIN (codes A the first three digits represent significant figures and the last digit 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 su
9、bstituted for one of the significant figures. The resistance value designations are shown in table I. Minimum and maximum resistance 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 s
10、hall be considered as not conforming to the specification. TABLE I. Resistance value designations. Designation Resistance ohms 1R00 to 9R88 incl. 10R0 to 98R8 incl. 1000 to 9880 incl. 1001 to 9881 incl. 1002 to 9882 incl. 1003 to 9883 incl. 1004 to 9884 incl. 1005 to 2205 incl. 1.00 to 9.88 incl. 10
11、.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 to 9,880,000.0 incl. 10,000,000.0 to 22,000,000.0 incl. 3.3.2.1 Resistance range. The resistance range shall be as specified in MIL-PRF-55342/13 and herein (see 6.7). 3.
12、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 6.7). Provided by IHSNot for ResaleNo reprod
13、uction or networking permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 04007 REV D PAGE 4 4 TABLE II. Resistance tolerance. Symbol Resistance tolerance percent B F G J K +0.1 +1.0 +2.0 +5.0 +10.0 3.3.4.1 Pure tin. The use of pur
14、e 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). 3.3.5 Product level testing. The product level testing s
15、hall be designated by the military and space level PINs (see 1.2, 4.3.2, and 4.3.3). 3.3.6 Power rating. The power rating for this chip resistor shall be as specified in MIL-PRF-55342/13. 3.3.7 Voltage rating. The maximum continuous working voltage shall be as specified in MIL-PRF-55342/13. 3.3.8 Po
16、wer moisture resistance. 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 subj
17、ected to this test shall 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
18、 1.2), vendor CAGE code, 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 moi
19、sture resistance test 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, 9
20、4017, 94018, 94019, 94025, 94026, 04008, 04009 or 07010) 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
21、of MIL-PRF-55342 and 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
22、 not allowed for space level codes A and T of this document. 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. 04007 REV D PAGE 5 5 Configuration A Configuration B Confi
23、guration Dimension A Inches Dimension B Inches Dimension C Inches Dimension D Inches Dimension E Inches A 0.032 0.004 0.022 0.005 0.010/0.025 0.032 0.004 N/A B 0.034 0.004 0.022 0.005 0.010/0.025 0.007 0.005 0.008 0.005 NOTES: 1. Dimensions are in Inches. 2. Millimeter equivalents are given for gene
24、ral information only. 3. The pictorial view of the styles above are 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. Chip resistor. I
25、nches mm 0.004 0.10 0.005 0.13 0.007 0.18 0.008 0.20 0.010 0.25 0.022 0.56 0.025 0.64 0.032 0.81 0.034 0.86 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. 04007 REV D
26、 PAGE 6 6 3.6 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally 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 ad
27、vantageous life cycle costs. 3.7 Workmanship. Resistors shall be uniform in quality and free from any defects that 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 wit
28、h MIL-STD-790 is not applicable to this document. 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 Conformance inspection. 4.3.1 Inspection of product for delivery (military level). Inspection of produ
29、ct 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 moisture resistance test specified herein with 0 defects allowed. 4.3.1.1 Certification (military lev
30、el only). The procuring activity may accept a certificate of compliance in lieu of performing group B inspection and the power moisture resistance test. 4.3.2 Inspection of product for delivery (space level code A). Inspection of product for delivery for each PIN ordered shall consist of group A ins
31、pection 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) with 0 defects allowed. The group C life test shall be performed as specified in MIL-PRF-55342 except the test
32、 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 herein shall not be delivered on the contract or order. 4.3.3 Inspection of product for delivery (space level
33、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 soldering heat and resistance to bonding exposure shall be as specified in MIL-PRF-55342 except 10 samples for
34、 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 performed as specified in MIL-PRF-55342 except the test shall be for 1000 hours, 22 samples for each value order
35、ed 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 as specified in MIL-PRF-55342 except the test shall be for 100 hours, 10 samples with 0 defects. NOTE: Test
36、samples subjected to Group B, Group C, and the power moisture resistance test herein shall not be delivered on the contract or order. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO.
37、 037Z3 DWG NO. 04007 REV D PAGE 7 7 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 power for resistance values less
38、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 wattage: 0.040 watts (P) Voltage
39、 rating: 15 volts (V) Value: 2000 ohms (R) * PRV 1.= (for “R” critical res.) 1.=V x V (for “R” critical res.) = ( )( )200004.1. = .316 x 15 = 8 = 4.74 volts = 2.83 volts 4.5 Visual and mechanical examination. Resistors shall be examined to verify that the materials, design, construction, physical di
40、mensions, marking, and workmanship are in accordance with the applicable requirements of MIL-PRF-55342. 4.6 Data retention (codes A res. values 100 ohms thru 68.1 kohms, res. tol. 0.1 pct.; res. values 5.62 ohms thru 68.1 kohms, res. tol. 1 pct.; res. values 5.6 ohms thru 68 kohms, res. tol. 2, 5, a
41、nd 10 pct., term. B and W, all PINs (see 1.2). Char. K and M; res. values 100 ohms thru 68.1 kohms, res. tol.0.1 pct., term B res. values 1.0 ohm thru 22.0 Megohms, res. tol. 1, 2, 5, and 10 pct., term. B, C, G, U, and W, all PINs (see 1.2). H0302*(D04007) 56235 State of the Art, Inc. 2470 Fox Hill
42、Road State College, PA 16803-1097 Char. K and M; res. values 1 ohm thru 200 kohms, res. tol. 1 pct. terms. B, G, U, C and W, all PINs only (see 1.2). Char. K and M; res. values 1 ohm thru 180 kohms, res. tol. 2, 5, and 10 pct. terms. B, G, U, C and W, all PINs (see 1.2). MWA98SM-*-NS62C MWA98SM-*-NU
43、C MWA98PG-*-UC MWA98PS-*-UC MSR98G-*-UC 50316 Mini-Systems, Inc. Thick Film Division PO Box 69 20 David Road North Attleboro, MA 02761-0069 Char. M, res. values 1 ohm thru 9.1 ohms, res. tol. 2, 5, and 10 pct., term. B, all PINs (see 1.2) Char. K and M, res. values 10 ohms thru 22 megohms, res. tol.
44、 1, 2. 5, and 10 pct., term. B, all PINs (see 1.2). RCWP-0302-69 RCWP-0302-81 RCWP-0302-82 SH903 Vishay Dale Electronics PO Box 609 Columbus, NE 68602-0609 Plant: Vishay Israel, Ltd. Emek-Sara “B” Industrial Park Beer Sheva, Israel 84874 1/ Caution: Parts must be purchased to the DLA Land and Maritime PIN to assure that all performance requirements and tests are met. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
