1、 -1- MIL-E-50748 12 m 7777706 0330574 O - - -_ ,- -/-/ _- MILTE - 5 O 74 8 (M U) 8 August 1973 MILITAR Y SPECIFICATION ELECTRONIC COMPONENT ASSEMBLY: 11737477 (I A IL TRIGGER ) This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1. 1 This spe
2、cification covers one type of electronic assembly known as Electronic Component Assembly: (see 6. 1). . 11737477 (“A“ Trigger) 2, APPLICABLE DOCUMENTS 2. 1 The following documents, of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the
3、 extent specified herein. SPECIFICATIONS Mi li ta r y MIL-F-13926 Fire Control Materiel: General Specificaion Governing the Manufacture and Inspection of MIL- 1-456 07 Ins pe ction E qui pment ; Acquis ition, Maintenance, and Disposition of MIL,-S -45743 Soldering, Manual Type, High Re liability Ele
4、ct ri cal, E lec tronic, Instrument, Communication, and Radar for Aerospace and Control Systems, Procedure for FSC- 1240 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-* MIL-E-507B 12 H 9777706 0330575 2 I MI.L-E-50748(MU) 8 August 1973 MIL - S - 4
5、6 844 STANDARDS Military Solder Bath Soldering of Printed Wiring Assemblies, Automatic Machine Type MIL-STD- 105 Sampling Procedures and Tables for Inspection by Attributes Quality Assurance Terms and Definitions , MIL-STD-109 MIL-STD-81 O Environmental Test Methods DRA WINGS U. S. Army, Frankford A
6、rsenal F11737477 Electronic Component Assembly - (“Alt Trigger) PACKAGING DATA SHEET 11 737477 Packaging of E le ct ronic Component Assembly - (“Al Trigger): 11737477 (Copies of specifications, standards, drawings, and packaging-data sheets required by suppliers in connection with specific procureme
7、nt functions should be obtained from the procuring activity or as directed by the contracting officer. ) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-50748(MU) 8 August 1973 3. REQUIREMENTS 3. 1 Fabrication. The Electronic Component Assembly
8、 (“A“ Trigger), herein referred to as the assembly, shall be manufactured in accordance with Drawing F11737477 and drawings pertaining thereto, 3. 2 General specification. The assembly shall meet the following requirements, where applicable, of MIL-F- 13926 : a. Order of precedence b. Dimensions and
9、 tolerances c. Part identification and marking d. Electrical and electronic assemblies e. Workmanship. 3. 2. 1 Soldering. Soldering shall be in accordance with MIL-S-45743 or MIL-S-46844, except that bare copper wire shall be permitted at clipped ends of component leads. 3. 3 Performance. Unless oth
10、erwise specified, the assembly shall meet the performance requirements of this specification at standard ambient temperatures between 60 degrees Fahrenheit (OF) and 90F-. 3. 3.1 Loads, power, and signals The assembly shall perform as Specified herein when the loads, power, and signals of table I are
11、 applied as specified. 3. 3.1. i Reticle light control. With the voltage signal source (item 3. 1) of tabl-I adjusted to apply t14. O *O, 5 Vdc between P1-3 and P1-6, the outputs at P1-4 and P1-9 shall each be tl1 e O f2. O Vdc. With the item 3.1 signal source adjusted to apply t5. O 50.2 Vdc betwee
12、n Pl-3 and Pi-6,- the outputs at Pl-4 and Pl-9 shaileach be t3.6 *O, 8 Vdc. 3. 3.1.2 -trigger. output at Pl-5 shall be t5. O kl.0 Vdc. of table I applied to P1-1 O, the output at P1-5 shall be +O. 2 *O. 2 Vdc. With no input signal applied to P1-1 O, the With the current signal (item 3.2) 3. 3.2 Envi
13、ronmental 3.3.2.1 Storage temperature, The assembly shall meet the requirements of 3.3.1 at ambient temperature after exposure to and thermal stabilization at -80“ F and +160* F. 3 I - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-50748 12
14、E 7777706 0330577 b -1 MIL - E- 50748(MU) 8 August 1973 . TABLE I LOADS, POWER, -AND SIGNALS Item 1. 1.1 1.2 2. 2.1 2.2 3. 3.1 3.2 Condition . Loads Re si s t or Re sis t or Power sources t5 Vdc t15 Vdc Signal sources Zero to t15 Vdc maximum 90 pA . Cha ra ct eri s tic s 300 ohms f 5 percent 300 ohm
15、s i 5 percent Tolerance: f0.2 Vdc Ripple: 525 mV p-p Tolerance: +O. 7 Vdc Ripple: - 25 mV p-p Adjustable. Ripple: - 25 mV p-p Tolerance: f10 pA 4 Connections Connected- between the- f oll ong pins : P1-4-and P1-6 Pl-9 and P1-6 P1-7(+) and P1-6(-) P1-2(t) and P1-6(-) Applied between the following pin
16、s when specified her ein: P1-3(t) and P1-6(-) P1 -lo(+) and P1-6(-) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL - E- 50 7 48 (MU) 8 August 1973 3. 3.2.2 Operating temperatures, The assembly shall meet the requirements of 3. 3.1 while exposed
17、to and thermally stabilized at -4O0F and t125“ F, subsequent to which the requirements of 3.3.1 shall be met at ambient temperature. 3. 3.2. 3 Vibration. The assembly shall show no physical failure and shall meet the requirements of 3.3.1 after being exposed to the following vibratory conditions: a.
18、 Amplitude: 1 /64 inch, constant (I /32 inch double amplitude) b. Vibratory motion: Simple harmonic C. Sweep time:. 5 to 55 to 5 .Hertz in a five-minute period d. Vibration cycling: Three linear or logarithmic sweeps applied to each of the three mutually perpendicular axes. Provided by IHSNot for Re
19、saleNo reproduction or networking permitted without license from IHS-,-,-in MIL-ST D- 109. -. 4.2 First article (initial production) approval. The requirements for first article approval and the responsibility (Government or con- tractor) for first article testing shall be as specified in the contra
20、ct. The sample for first article approval tests shall consist of three assemblies. The sample shall be manufactured in the same manner, using the same materials, equipment, processes, and procedures as used in regular production. All parts and materials including packaging and packing, shall be obta
21、ined from the same source of supply as used in regular production. 4.2.1 Government testing. When the Government is responsible for conducting first article approval tests, the contractor, prior to sub- mitting the sample to the Government, shall inspect the sample to insure conformance to alt the r
22、equirements of this specification. this inspection, including certificates of conformance for materials, shall be submitted with the sample. A record of 4. 2.2 Contractor testing. When the contractor is responsible for conducting first artic le approval tests, the sample shall be inspected by the co
23、ntractor for all the requirements of this specification. The sample and a record of this inspection, including certificates of con- formance for materials, shall be submitted to the Government for approval. inspection. The Government reserves the right to witness the contractors 6 Provided by IHSNot
24、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL - E - 5 O 74 8 (MU) 8 August 1973 4.3 Inspection provisions 4. 3.1 Submission of product. Unless otherwise specified herein, or by the contracting officer, inspection lot size, lot formation and presentation of lots
25、shall be in accordance with inspection or sampling procedures herein and submission of product provisions of MIL-STD-105. 4, 3.2 Examination and tests 4.3.2.1 Components and subassemblies. All components and sub- assemblies shall be inspected in accordance with the inspection provisions contained in
26、 the respective specifications and Supplementary Quality Assurance Provisions (SQAP) listed in the technical data package (TDP). In the absence of SQAPs, the applicable quality assurance provisions of MIL-F-13426 shall apply. 4. 3. 2. 2 Functional tests. The requirements and tests in table II shall
27、be inspected on a 100 percent basis. All examinations and tests shall be conducted at the standard ambient temperature, TABLE II FUNCTIONAL TESTS Classifi- cation Cha ra c te ri s ti c s Requirements Test Paragraphs 101. Reticle light control 3.3.1.1 4. 6.2 102. A- trigger 3.3.1.2 4.6.3 4.4 Special
28、sampling. The selection of samples shall be in accordance with section 7 of MIL-STD-105. 4.4.1 General. One assembly shall be selected at random by a Government representative as a control sample from each 50 produced, The control sample shall meet the requirements and tests in table III. 4.4. 2 Env
29、ironmental. Three assemblies shall be selected at ran- dom by a Government representative as a control sample from each 50 pro- duced or from each months production, whichever occurs first. The control samples shall meet the requirements and tests in table IV. Provided by IHSNot for ResaleNo reprodu
30、ction or networking permitted without license from IHS-,-,-MIL- E - 5 O 748 (MU) 8 August 1973 TABLE III SPECIAL SAMPLING - GENERAL Classifi- cation Control Tests RequiEments Test Paragraphs 301. Fabrication 3.1 Applicable drawings- vis ual 302, General specification 3.2 MIL-F-13926- i visual TABLE
31、IV SPECIAL SAMPLING - ENVIRONMENTAL Classifi- cation 303. 304. 305. Control Tests Requirements Te st Paragraphs Storage temperature 3. 3.2. 1 4.6.4. 1 Operating temperature 3. 3.2.2 4.6, 4. 1 Vibration 3. 3.2. 3 4.6.4.2 4.4. 3 Acceptance and rejection. Rejected lots shall be screened for all defecti
32、ve characteristics. resubmittance of rejection lots shaL1 be in accordance with the acceptance and rejection criteria specified in MIL-STD- 10 5. Removal or correctionof defective units and 4.5 Inspection equipment. Except as otherwise provided for by the contract, the contractor shall supply and ma
33、intain inspection equip- ment in accordance with the applicable requirements of MIL-1-45607. The inspection equipment listed in table V shall be utilized in performing the tests specified herein. 4.5.1 Government furnished inspection equipment. Where the contract provides for Government furnished in
34、spection equipment, supply and maintenance of inspection equipment shall be in accordance with the applicable requirements specified in MIL-1-45607. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-tem 1, 2. 3. 4. 5 MIL-E-50748 12 rn 7777706 0330602 6
35、 rn MIL- E -5 O 748 (MU) 8 August 1973 TABLE V INSPECTION EQUIPMENT Nomenclature DC Power Supply DC Power Supply DC Power Supply DC Power Supply DC Voltmeter Description Zero to +15 Vdc maximum, adjusb able Ripple: 1 O0 mV p-p Source impedance: 0.01 ohm +5,0 f0.2 Vdc Ripple: 25 mV p-p Source impedan
36、ce: O. 1 ohm +15. O SO. 7 Vdc Ripple: - 25 mV p-p 90 *IO PA O to 50 Vdc Accuracy: I1 percent 4. 5.2 4. 5.2.1 Government design. Unless otherwise specified in the Contractor furnished inspection equipment contract, all inspection equipment specified by drawing number in specifications or SQAPs formin
37、g a part of the contract shall be supplied by the contractor in accordance with applicable technical data listed in the TDP. 4. 5.2.2 Contractor design. The contractor shall design and supply inspection equipment compatible with the test methods and procedures specified in 4. 6 of this specification
38、 and with the component inspection procedures specified in examination and test facilities provisions of MIL- F- 13926. Since tolerance of inspection equipment is normally considered to be within 10 percent of the product tolerance for which it is intended, this inherent error in the inspection equi
39、pment design must be considered as part of the prescribed product tolerance limit. Thus, concept, construction, materials, dimensions, and tolerances used in the design of inspection equipment shall be so selected and controlled as to insure that the inspection equipment will reliably indicate accep
40、tability of the product which does not exceed 90 percent of the prescribed tolerance limit and permit positive rejection when nonconforming. routine calibration of inspection equipment. Construction shall be such as to facilitate 4.6 Test methods and procedures, 46. 1 Test conditions. Unless otherwi
41、se specified, the test condi- tions shall be in accordance with the test facilities provisions of MIL-F-13926. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I - MIL-E-50748 12 m 777770b 0330b03 8 m MIL- E- 50748(MU) 8 August 1973 4.6.1.1 Initial co
42、nditions. Connect the loads and power to the assembly as specified in table I. 4. 6.2 Reticle light control test. Connect the signal source (item 3. 1 of table I) between P1-3 and P1-6, and set the voltage, in turn, to t14. O &O. 5 Vdc and +5. O fO, 2 Vdc. P1-9 for each input condition to determine
43、compliance with 3.3.1.1. Measure the ouiputs at P1-4 and 4.6. 3 A-trigger test. With no input applied to P1-10, measure tile output at P1-5 to determine compliance with 3. 3.1.2. the current signal (item 3. 2 of table I) to Pl-10, and measure the output at P1-5 to determine compliance with 3.3.1.2.
44、Then apply 4.6. 4 Environmental tests 4.6.4. 1 Temperature. The test apparatus shall be in accordance with the applicable test facilities provisions of MIL-F- 13926 except that the assembly may be mounted on the inside surface of the test chamber. form this test in accordance with Procedure I of MIL
45、-F-13926, with condi- tions C ( -40F) and E (+125OF), and with the rate of temperature change during cycling not greater than 8 OF per minute. At each of the specified operating temperatures, perform the tests of 4.6. 2 and 4. 6. 3 to determine Per- compliance with 3. 3. 2. 1 and 3. 3. 2. 2. 4.6.4.
46、2 Vibration. Perform this test utilizing the apparatus speci- fied in Method 514. 1 of MIL-STD-810 and in accordance with Part 1 of Procedure I therein, except that the vibratory conditions of 3. 3. 2. 3 shall apply. Following vibration exposure, examine the assembly for structural failures, loose h
47、ardware, wire breakage, and abrasions. Perform the tests of 4.6. 2 and 4. 6. 3 to determine compliance with 3. 3. 2. 3. 10 - . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-,/ MIL-E-50744 12 7777706 0330604 T MIL- E- 5 07 48 (MU) 8 August 1973 5. P
48、REPARATION FOR DELIVERY 5.1 Packaging, packing, and marking. Packaging, packing, and The marking shall be in accordance with Packaging Data Sheet 11 737477, level of protection shall be as specified in the procurement document. 6. NOTES 6.1 Intended use. The assembly is a moduLe of the Laser Receive
49、r-Transmitter RT-1021( l/VVG-l, intended for use in the Fire The assembly: Control Rangefinder AN/VVG- I. a. Provides a reticle b. Generates the A-tr ight control output gger signa1. 6.2 Ordering data, Procurement documents should specify the following : a. Title, number and date of this specification b. c. Selection of applicable levels of preservation
