1、 REVISIONS LTR DESCRIPTION DATE APPROVED A Add requirements for termination finish (see 3.4); Editorial and DoD policy corrections throughout. 12 DEC 02 K. Cottongim B Add pure tin, manufacturer edibility, and pulse application paragraphs. Editorial changes throughout. 25 MAR 10 M. Radecki Prepared
2、in accordance with ASME Y14.100 Source control drawing REV STATUS OF PAGES REV B B B B B B B PAGES 1 2 3 4 5 6 7 PMIC N/A PREPARED BY Jesus V. Garcia III DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OH Original date of drawing: CHECKED BY Andrew Ernst TITLE RESISTOR, FIXED, FILM, CHIP, 26 February 2001
3、 APPROVED BY Kendall A. Cottongim VOLTAGE DIVIDER, STYLE 1206 SIZE A CODE IDENT. NO. 037Z3 DWG NO. 01033 REV B PAGE 1 OF 7 AMSC N/A 5905-E699 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE I
4、DENT NO. 037Z3 DWG NO. 01033 REV B PAGE 2 1. SCOPE 1.1 Scope. This drawing describes the requirements for a voltage divider, fixed film, chip resistor, style 1206. 1.2 Part or Identifying Number (PIN). The complete PIN is as follows: 01033 * * * * Drawing number R1 Resistance (see 3.3.1) R2 Resistan
5、ce (see 3.3.1) Resistance temperature characteristic (see 3.3.2) Absolute and ratio tolerance (see 3.3.3) 2. APPLICABLE DOCUMENTS 2.1 Government documents. * 2.1.1 Specifications and standards. The following specifications, standards and handbooks form a part of this document to the extent specified
6、 herein. Unless otherwise specified, the issues of these documents are those listed in the cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-PRF-55342 - Resistors, Chip, Fixed, Film, Nonestablished Reliability, Established Reliability, Space Level, General Specification
7、 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 List (QPL) Systems for Electrical, Electronic, and Fiber Optic Parts Specifications. MIL-STD-1285 - Mark
8、ing of Electrical and Electronic Parts. * (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.) * 2.2 Order of precedence. Unless otherwise noted herei
9、n or 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. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been
10、obtained. 3. REQUIREMENTS 3.1 Item requirements. The individual item requirements shall be as specified herein and MIL-PRF-55342. 3.2 Interface and physical dimensions. The resistor shall meet the interface and physical dimensions as specified in MIL-PRF-55342 and herein (see figure 1). Provided by
11、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. 01033 REV B PAGE 3 Inches mm Inches mm Inches mm Inches mm 0.003 0.076 0.006 0.152 0.024 0.609 0.058 1.473 0.004 0.102 0.010 0.254
12、0.027 0.685 0.063 1.600 0.005 0.127 0.015 0.381 0.030 0.762 0.126 3.200 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. The picturization of the resistor above is a given representation of the envelope of the item. Slight deviations from the outli
13、ne shown, which are contained within the envelope, and do not alter the functional aspects of the device are acceptable. FIGURE 1. RESISTOR, FIXED, FILM, CHIP. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS,
14、OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 01033 REV B PAGE 4 3.3 Electrical characteristics. 3.3.1 Resistance. The nominal resistance expressed in ohms is identified by four digits; the first three digits represent the significant figures and the last digit specifies the number of zeros to follow. Wh
15、en the value of the resistance is less than 1,000 ohms, or when fractional values of an ohm are required, the “R” shall be substituted for one of the significant figures. 3.3.1.1 Resistance range. 3.3.1.1.1 Package resistance range. The package resistance range shall be 10 ohms to 200 kilohms. 3.3.1
16、.1.2 Individual resistance range. The individual resistance range, per resistor, is 5 ohms to 125 kilohms. 3.3.2 Resistance temperature characteristic (RTC). The resistance temperature characteristic is identified by a single letter in accordance with table I. TABLE I. Resistance temperature charact
17、eristic. Symbol Resistance temperature characteristic (RTC) in part per million (ppm) E 25 H 50 K 100 3.3.3 Absolute and ratio tolerance. The absolute and ratio tolerances are identified by a single letter in accordance with table II. TABLE II. Absolute and Ratio tolerances. Symbol Absolute toleranc
18、e () Ratio tolerance () A 0.05 0.05 B 0.05 0.10 C 0.05 0.50 D 0.05 1.00 E 0.10 0.05 F 0.10 0.10 G 0.10 0.50 H 0.10 1.00 J 0.50 0.05 K 0.50 0.10 M 0.50 0.50 N 0.50 1.00 P 1.00 0.05 R 1.00 0.10 S 1.00 0.50 T 1.00 1.00 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
19、 from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 01033 REV B PAGE 5 3.3.4 Power rating. 3.3.4.1 Package power rating. The package power rating is 0.250 watts. 3.3.4.2 Individual resistor power rating. The individual power rating per resistor is 0.125 w
20、atts. 3.3.5 Operating temperature. The operating temperature shall be -65oC to +150oC. 3.4 Termination material. Termination material shall be in accordance with MIL-PRF-55342, code letter B. * 3.4.1 Pure tin. The use of pure tin, as an underplate or final finish, is prohibited both internally and e
21、xternally. 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 6.4). 3.5 Moisture resistance. When resistors are tested as specified in 4.4.1.2.2, there shall be no evidence of mechanical damage; the
22、change in resistance between the initial and final measurements shall not exceed the limits as specified in MIL-PRF-55342. 3.6 Marking. Marking of the individual chip resistors is not required; however, each unit package shall be marked in accordance with MIL-STD-1285 and include the PIN as specifie
23、d herein (see 1.2), the manufacturers name or Commercial and Government Entity (CAGE) code, date, and lot codes. 3.7 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that
24、the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. * 3.8 Manufacturer eligibility. To be eligible for listing as a approved source of supply, a manufacturer shall be listed on the MIL-PRF-55342 Qualified Products List
25、for at least one part, or perform the group A and group B inspections specified herein on a sample agreed upon by the manufacturer and DSCC-VA. * 3.8.1 Certificate of compliance. A certificate of compliance shall be required from manufacturers requesting to be listed as an approved source of supply.
26、 3.9 Workmanship. Resistors shall be processed in such a manner as to be uniform in quality and parts shall be free from any defects that will affect life, serviceability, or appearance. 4. VERIFICATION 4.1 Qualification inspection. Qualification inspection is not applicable to this document. 4.2 Re
27、liability assurance program. The reliability assurance provisions specified in MIL-PRF-55342 and maintained in accordance with MIL-STD-790 are not applicable to this document. 4.3 Product level qualification. Product level qualification specified in MIL-PRF-55342 and MIL-STD-690 is not applicable to
28、 this document. 4.4 Conformance inspection. 4.4.1 Inspection of product for delivery. Inspection of product for delivery shall consist of group A (ER level) and group B inspections. 4.4.1.1 Group A inspection. Group A inspection (ER level) shall be in accordance with MIL-PRF-55342. PPM testing and v
29、erification as specified in MIL-PRF-55342 are not applicable to 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. 01033 REV B PAGE 6 4.4.1.2 Group B inspe
30、ction. Group B inspection shall be in accordance with MIL-PRF-55342. 4.4.1.2.1 Certification. The procuring activity may accept a certificate of compliance in lieu of Group B inspection. 4.4.1.2.2 Moisture resistance. Moisture resistance shall be in accordance with MIL-PRF-55342. 4.4.1.3 Visual and
31、mechanical inspection. Resistors shall be examined to verify that the materials, design, construction, physical dimensions, marking, and workmanship are in accordance with the applicable requirements 3.2, 3.6, and 3.9. 4.5 Inspection of packaging. Inspection of packaging shall be in accordance with
32、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 packaging of materiel is to be performed by DoD or in-house contractor personnel, these personnel need to contact the responsible packaging
33、 activity to ascertain packaging requirements. Packaging requirements are maintained by the Inventory Control Points packaging activity within the Military Department or Defense Agency, or within the military services system commands. Packaging data retrieval is available from the managing Military
34、Departments or Defense Agencys automated packaging files, CD-ROM products, or by contacting the responsible packaging activity. 6. NOTES (This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.) 6.1 Intended use. Resistors conforming to this dr
35、awing are intended for use when military specifications do not exist and qualified military devices that will perform the required function are not available for the OEM application. These items are suited for high current pulse applications and can be used as microwave terminations. 6.2 Ordering da
36、ta. The contract or purchase order should specify the following: a. Complete PIN (see 1.2). b. Requirements for delivery. One copy of the conformance inspection data with each shipment of parts by the manufacturer. c. Packaging requirements (see 5.1). (i.e. Electrostatic discharge (ESD) sensitive pa
37、ckaging). d. Whether the manufacturer performs the group B tests or provides certification of compliance with group B requirements (see 4.4.1.2.1). 6.3 Electrostatic charge. Under several combinations of conditions, these resistors can be electrically damaged, by electrostatic charges, and drift fro
38、m specified value. Users should consider this phenomena when ordering or shipping resistors. Direct shipment to the Government is controlled by MIL-DTL-39032 that specifies a preventive packaging procedure. * 6.4 Tin whisker growth. The use of alloys with tin content greater than 97 percent, by mass
39、, may exhibit tin whisker growth 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 t
40、he formation of tin whiskers. Alloys 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). Provided by IHSNot for ResaleNo reproduction or networking p
41、ermitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 01033 REV B PAGE 7 * 6.5 Pulse applications. Designers are CAUTIONED on using the above resistors in high power pulse applications. Since they have not been qualified nor tested f
42、or 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-PRF-55342. * 6.6 User of record. Coordination of this document for future revisions is coordinated only with the approved source o
43、f supply and the users of record of this document. Requests to be added as a recorded user of this drawing may be achieved online at resistordla.mil or in writing to: DSCC-VAT, Post Office Box 3990, Columbus, OH 43218-3990 or by telephone (614) 692-0552 or DSN 850-0552. * 6.7 Approved source of supp
44、ly. Approved source of supply is listed herein. Additional sources will be added as they become available. Assistance in the use of this drawing may be obtained online at resistordla.mil or contact DSCC-VAT, Post Office Box 3990, Columbus, OH 43218-3990 or by telephone (614) 692-0552 or DSN 850-0552
45、. DSCC drawing PIN Vendor similar designation or type number 1/ Vendor CAGE Vendor name and address 01033* PFC-D1206-03-*-*-*-* 57027 IRC, Inc. Advanced Film Division 4222 South Staples Corpus Christi, TX 78411 1/ Parts must be purchased to the DSCC PIN to assure that all performance requirements and tests are met. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
