1、 REVISIONS LT DESCRIPTION DATE APPROVED A Inactivation of resistance temperature curve “Z” for new design. Editorial changes throughout. 12 MAR 07 M. Radecki Resistance temperature curve “Z” of DSCC drawing 03018 is inactive for new design as of 12 March 2007. Use resistance ratio “B” of MIL-PRF-321
2、92/3 for all new design and replacement purposes. Prepared in accordance with ASME Y14.100 Selected item drawing REV STATUS REV A A A A A A A A A A A OF PAGES PAGES 1 2 3 4 5 6 7 8 9 10 11 PMIC N/A PREPARED BY Dennis L. Cross DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OH Original date of drawing 24 A
3、pril 2003 CHECKED BY Andrew R. Ernst TITLE RESISTOR, THERMAL, THERMISTOR, DIE CHIP, NEGATIVE TEMPERATURE COEFFICIENT (NTC), STYLE 0404 APPROVED BY Andrew R. Ernst SIZE A CODE IDENT. NO. 037Z3 DWG NO. 03018 REV A PAGE 1 OF 11 AMSC N/A 5905-E638 Provided by IHSNot for ResaleNo reproduction or networki
4、ng permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 03018 REV A PAGE 2 1. SCOPE 1.1 Scope. This drawing describes the requirements for a thermally sensitive die chip thermistor available in 1 percent, 2 percent, 5 percent, and
5、10 percent resistance tolerances. These thermistors exhibit negative temperature coefficient (NTC) characteristics and are primarily intended for incorporation into epoxy/wire bond applications. 1.2 Part or Identifying Number (PIN). The complete PIN is as follows: 03018 - Z 1002 J G | | | | | | | |
6、| | Drawing number Curve (See Table I) Resistance value (See 3.3.1 however, each unit pack shall be marked with the PIN assigned herein (see 1.2), the manufacturers identification code (CAGE), the date code, and the lot code. At the option of the manufacturer, the resistor may be marked (i.e., laser
7、, color dot, etc.). The marking shall remain legible after all tests. 3.12 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 operatio
8、nal and maintenance requirements, and promotes economically advantageous life cycle costs. 3.13 Certificate of compliance. A certificate of compliance shall be required from manufacturers requesting to be a suggested source of supply. 3.14 Workmanship. Thermistors shall be uniform in quality and fre
9、e from any defects that will affect life, serviceability, or appearance. 4. VERIFICATION 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. 03018 REV A PAGE 9 4.1 Qualifi
10、cation inspection. Qualification inspection is not applicable to this document. 4.2 Conformance inspection. 4.2.1 Inspection of product for delivery. Inspection of product for delivery shall consist of group A and group B inspections as specified herein and MIL-PRF-32192. 4.2.1 Certification. The pr
11、ocuring activity may accept a certificate of compliance in lieu of group B inspection. 4.2.2 Group A inspection. Group A inspection shall consist of the inspections specified in table IV, and shall be made on the set of sample units, in the order shown. Thermistors subjected to subgroup II shall not
12、 be supplied against purchase order. 4.2.2.1 Subgroup 1. Subgroup 1 tests shall be performed as specified in the inspections of MIL-PRF-32192. 4.2.2.2 Subgroup 2 (thermal shock). Ten sample units of any zero power resistance shall be subjected to the test of subgroup 2. One defective unit will be al
13、lowed. TABLE IV. Group A Inspection. Inspection Requirement paragraph Method paragraph Subgroup 1 Visual and mechanical examination Interface and physical dimensions Workmanship Zero power resistance Resistance ratio characteristic 3.2 3.14 3.5 3.3.4 4.3.1 4.3.2 Subgroup 2 Thermal shock 3.6 4.3.3 4.
14、2.3 Group B inspection. Group B inspection shall consist of the test specified in table V in the order shown. They shall be performed on sample units that have passed the group A tests. 4.2.3.1 Subgroup 1. Subgroup 1 tests shall be performed as specified in the inspections of MIL-PRF-32192. 4.2.3.2
15、Subgroup 2 (wire bonding integrity). Ten sample units of any zero power resistance shall be subjected to the test of subgroup 2. One defective unit will be allowed. 4.2.3.3 Certification. The acquiring activity, at its discretion, may accept a certificate of compliance with group B requirements in l
16、ieu of performing group B tests (see 6.2d). 4.3 Methods of inspections. 4.3.1 Zero power resistance (see 3.5). Thermistors shall be tested as specified in MIL-PRF-32192. The following details and exceptions shall apply: a. Measurements: All resistance measurements shall be made in a controlled unifo
17、rm medium capable of maintaining an accuracy of 0.05C. b. Mounting: Mounting shall be in accordance with the specified mounting for wire bondable devices of MIL-PRF-55342. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DEFENSE SUPPLY CENTER, COLUMBU
18、S COLUMBUS, OHIO SIZE A CODE IDENT NO. 037Z3 DWG NO. 03018 REV A PAGE 10 TABLE V. Group B inspection. Inspection Requirement paragraph Method paragraph Subgroup 1 Short time overload Low temperature storage High temperature storage 3.7 3.8 3.9 4.3.4 4.3.5 4.3.6 Subgroup 2 Wire bonding integrity 3.10
19、 4.3.7 4.3.2 Resistance ratio characteristic (see 3.3.4). Compute the resistance ratio using the zero power resistance measurement at 25C and 125C (see 4.3.1). 4.3.3 Thermal shock (see 3.6). When resistors are tested in accordance with method 107 of MIL-STD-202, there shall be no evidence of mechani
20、cal damage. The following details and exceptions shall apply: a. Test condition A. b. Upper temperature of 125C. 4.3.4 Short time overload (see 3.7). Thermistors shall be tested as specified in MIL-PRF-32192. The following details and exceptions shall apply: Mounting: See 4.3.1b. 4.3.5 Low temperatu
21、re storage (see 3.8). Thermistors shall be tested as specified in MIL-PRF-32192. The following details and exceptions shall apply: Mounting: Mounting in accordance with 4.3.1b is optional. 4.3.6 High temperature storage (see 3.9). Thermistors shall be tested as specified in MIL-PRF-32192. The follow
22、ing details and exceptions shall apply: Mounting: Mounting in accordance with 4.3.1b is optional. 4.3.7 Wire bonding integrity (see 3.10). Thermistors shall be tested as specified in MIL-PRF-55342 for mounting integrity of wire bondable devices. 5. PACKAGING 5.1 Packaging. For acquisition purposes,
23、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 activity to ascertain requisite requirements. Packaging requirements a
24、re maintained by the Inventory Control Points packaging activities within the Military Service or Defense Agency, or within the Military Services System Command. Packaging data retrieval is available from the managing Military Departments or Defense Agencys automated packaging files, CD-ROM products
25、, or by contacting the responsible packaging activity. 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. 03018 REV A PAGE 11 6. NOTES (This section contains information
26、of a general or explanatory nature which may be helpful, but is not mandatory.) 6.1 Intended use. Resistors conforming to this drawing are intended for use when military specifications do not exist. This drawing is intended exclusively to prevent the proliferation of unnecessary duplicate specificat
27、ions, drawings, and stock catalog listings. When a military specification exists and the product covered by this drawing has been qualified for listing, this drawing becomes obsolete and will not be used for new design. 6.2 Ordering data. The contract or purchase order will specify the following: a.
28、 Complete PIN. (see 1.2) b. Requirements for delivery and one copy of the conformance inspection data or certification of compliance that parts have passed conformance inspection with each shipment of parts by the manufacturer. c. Requirements for packaging and packing. d. Whether the manufacturer p
29、erforms the group B tests or provides certification of compliance with group B requirements. 6.3 Tin whisker growth. The use of alloys with tin content greater than 97 percent, by mass, may exhibit tin whisker growth problems after manufacture. Tin whiskers may occur anytime from a day to years afte
30、r 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. Alloys of 3 percent lead, by mass, have shown to inhibit the growth of tin whiskers. F
31、or additional information on this matter, refer to ASTM-B545 (Standard Specification for Electrodeposited Coatings of Tin). 6.4 Electrostatic charge. Under several combinations, these resistors can be electrically damaged, by electrostatic charges, and drift from specified value. Users should be con
32、sidered 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 User of record. Coordination of this document for future revisions is coordinated only with the suggested source of suppl
33、y 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. 6.6 Suggested source of supply. Sugg
34、ested 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. DSCC
35、drawing PIN Vendor similar designation or type number 1/ Vendor CAGE Vendor name and address 03018-* QTC11*-* 56866 Quality Thermistor, Inc. 2108 Century W Boise, ID 83709-2865 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-,-,-
