1、 REVISIONS LTR DESCRIPTION DATE APPROVED A Add new source of supply. Editorial corrections throughout. 15 Dec 1994 Edward H. Back B Add new source of supply. Editorial corrections throughout. 31 Jan 1997 David E. Moore C Extend maximum qualified resistance for present source of supply. Update to pre
2、sent DoD policy requirements. 25 Feb 1998 David E. Moore D Five year document review. Update to present DoD policy requirements. 22 Jan 2004 Kendall A. Cottongim E Add requirements for space level and update to present DoD policy requirements. 31 Jan 2006 Michael A. Radecki F Paragraph 4.3.3; change
3、 HTE from 1000 hours to 100 hours. Add pure tin prohibition. Editorial corrections throughout. 14 Apr 2006 Michael A. Radecki G Extend vendors resistance range and tolerances. Add pulse application paragraph. Editorial corrections throughout. 14 Oct 2011 Michael A. Radecki H Correct paragraph 4.4 ex
4、ample 2 critical resistance value sign to “”. Editorial change throughout. 24 Feb 2013 Michael A. Radecki CURRENT DESIGN ACTIVITY CAGE CODE 037Z3 HAS CHANGED NAMES TO: DLA LAND AND MARITIME COLUMBUS, OHIO 43218-3990 Prepared in accordance with ASME Y14.100 Source control drawing REV STATUS OF PAGES
5、REV H H H H H H H H H PAGES 1 2 3 4 5 6 7 8 9 PMIC N/A PREPARED BY Dennis L. Cross DEFENSE ELECTRONIC SUPPLY CENTER DAYTON, OH Original date of drawing CHECKED BY Andrew R. Ernst TITLE RESISTOR, CHIP, FIXED, FILM, MOISTURE RESISTANT, MILITARY and SPACE LEVEL, STYLE 2208 7 September 1994 APPROVED BY
6、David E. Moore SIZE A CODE IDENT. NO. 14933 DWG NO. 94014 REV H PAGE 1 OF 9 AMSC N/A 5905-2013-E15 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE ELECTRONIC SUPPLY CENTER DAYTON, OHIO SIZE A CODE IDENT NO. 14933 DWG NO. 94014 REV H PAGE 2 1.
7、 SCOPE 1.1 Scope. This drawing describes the requirements for a 0.225 by 0.075 chip resistor, 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 militar
8、y applications. (NOTE: This PIN is the original PIN shown in previous revisions of this drawing). 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. 94014- * * * * | | | | | | | | | | Drawing number
9、 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 digit specifies the number of zeros to follow. When the value of resistance is less tha
10、n 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 resistance values shall be as specified in MIL-PRF-55342. Resistance values not listed in
11、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 1R00 to 9R88 incl. 10R0 to 98R8 incl. 1000 to 9880 incl. 1001 to 9881 incl. 1002 to 9
12、882 incl. 1003 to 9883 incl. 1004 to 9884 incl. 1005 to 2205 incl. 1.00 to 9.88 incl. 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 to 9,880,000.0 incl. 10,000,000.0 to 22,000,000.0 incl. 3.3.2.1 Resistance range.
13、 The resistance range shall be as specified in MIL-PRF-55342/5 and 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
14、specified in MIL-PRF-55342 and herein (see 6.7). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE ELECTRONIC SUPPLY CENTER DAYTON, OHIO SIZE A CODE IDENT NO. 14933 DWG NO. 94014 REV H PAGE 4 TABLE II. Resistance tolerance. Symbol Resistance to
15、lerance 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 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 percen
16、t lead, by mass (see 6.3). 3.3.5 Product level testing. The product level testing shall 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-55342/5. 3.3.7 Voltage rating. The maxi
17、mum continuous working voltage shall be as specified in MIL-PRF-55342/5. 3.3.8 Power 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
18、 specified in the moisture resistant requirements of MIL-PRF-55342. Samples subjected 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 resist
19、or; however, each unit package shall be marked with the PIN assigned herein (see 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 Pr
20、oducts List for MIL-PRF-55342. They shall have successfully passed the power moisture 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 resist
21、ance test to any of the following drawings (94012, 94013, 94015, 94016, 94017, 94018, 94019, 94025, 94026, 04007, 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 level
22、s A and T). Only approved sources of supply qualified to “T” failure rate level 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-
23、55342. Test deletion or reduction, which may be granted for ER level product, is 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 ELECTRONIC SUPPLY CENTER DAYTON, OHIO SIZE A CODE IDE
24、NT NO. 14933 DWG NO. 94014 REV H PAGE 5 Configuration A Configuration B Configuration Dimension A mm Dimension B mm Dimension C mm Dimension D mm Dimension E mm A 5.72 +0.13 1.91 +0.13 0.30/0.76 0.38 +0.13 N/A B 5.84 +0.18 1.91 +0.13 0.38/0.84 0.51 +0.13 0.51 +0.13 NOTES: 1. Dimensions are in millim
25、eters. 2. Inch equivalents are given for general 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 devi
26、ce are acceptable. FIGURE 1. Chip resistor. mm Inches 0.13 .005 0.18 .007 0.30 .012 0.38 .015 0.51 .020 0.76 .030 0.84 .033 1.91 .075 5.72 .225 5.84 .230 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE ELECTRONIC SUPPLY CENTER DAYTON, OHIO SI
27、ZE A CODE IDENT NO. 14933 DWG NO. 94014 REV H PAGE 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 maintenan
28、ce requirements, and promotes economically advantageous 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 M
29、IL-PRF-55342 and maintained in accordance with 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 d
30、elivery (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 moisture resistance test specified herein with 0 defects
31、 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 delivery (space level code A). Inspection of product for de
32、livery 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) with 0 defects allowed. The group C life test shall be
33、 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 herein shall not be delivered on the contract or order
34、. 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 soldering heat and resistance to bonding exposure shal
35、l 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 performed as specified in MIL-PRF-55342 except the test
36、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 as specified in MIL-PRF-55342 except the test shall
37、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. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE ELEC
38、TRONIC SUPPLY CENTER DAYTON, OHIO SIZE A CODE IDENT NO. 14933 DWG NO. 94014 REV H PAGE 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
39、to 10 percent rated power 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“ Chara
40、cteristic: “K“ Rated wattage: .225 watts (P) Voltage rating: 40 volts (V) Value: 2000 ohms (R) * PRV 1.= (for “R” critical res.) 1.=V x V (for “R” critical res.) = ( )( )2000225.1. = .316 x 40 = 45 = 12.64 volts = 6.71 volts 4.5 Visual and mechanical examination. Resistors shall be examined to verif
41、y that the materials, design, construction, physical dimensions, marking, and workmanship are in accordance with the applicable requirements of MIL-PRF-55342. 4.6 Data retention (codes A res. Values 1.0 ohm thru 22.0 megohms, res. Tol. 1.0, 2.0, 5.0, and 10 pct., terms. B, C, G, U, and W, all PINs (
42、see 1.2). H2208*(DEC014) 56235 State of the Art, Inc. 2470 Fox Hill Rd. State College, PA 16803-1797 Char. M, res. values 1 ohm thru 5.6 ohms, res. tol. 2, 5, and 10 pct., term. B, all PINs (see 1.2) Char. K and M, res. values 5.62 ohms thru 22 megohms, res. tol. 1, 2. 5, and 10 pct., term. B, all P
43、INs (see 1.2). RCWP-7225-69 RCWP-7225-81 RCWP-7225-82 SH903 Vishay Dale Electronics PO Box 609 Columbus, NE 68602-0609 Plant: Vishay Israel, Ltd. Emek-Sara “B” Industrial Park Beer Sheva, Israel 84874 Char. E, H, K, res. Values 10 ohms to 1.75 megohms, res. Tol. 0.1, 1.0, 2.0, 5.0 term. B, original
44、PIN only (see 1.2). PTN2208 57489 VISHAY Thin Film 2160 Liberty Drive Niagara Falls, 14304-3676 Char. K and M, res. values 1 ohm thru 200 kohm, res. tol. 1 pct., terms. B, G, U, C, and W, all PINs (see 1.2). Char. K and M, res. values 1 ohm thru 180 kohm, res. tol. 2, 5, and 10 pct., terms. B, G, U,
45、 C, and W, all PINs (see 1.2). WA85SM-*-NS62C WA85SM-*-NUC WA85PG-*-UC WA85PS-*-UC MSR85G-*-UC 50316 Mini-System, Inc. Thick Film Division PO Box 69 20 David Road North Attleboro, MA 02761-0069 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-,-,-
