1、MIL-R-484q2 12 m 7777706 0320460 6 - 7 - - MIL-R-48442 (MU) 25 January 1974 MILITARY SPECIFICATION REGULATOR: 11733468 This specification is approved for use by all Department and Agencies of the Department of Defense. 1. SCOPE 1.1 This specification covers one type of electronic assembly known as R
2、egulator, 11733468 (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 The following documents, of the issue in effect on date of invita- tion for bids or request for proposal, form a part of this specification to the extent specified herein. . SPECIFICATIONS Military MIL-F-13926 Fire Control Material, General S
3、pecification Governing the Manufacture and Inspection of MIL-F-14232 Parts, Equipment and Tools for Army Materiel; Packaging and Packing of MIL-1-45607 Inspection Equipment, Acquisition Maintenance and Disposition of STANDARDS Military MIL-STD-105 MIL-STD-109 . Quality Assurance Terms and Definition
4、s MIL-STD-202 Test Methods f0.r Electronic and Electrical Sampling Procedures and Tables for Inspection by Attributes Component Parts DRAWINGS U.S. Army, Frankford Arsenal D117 33468 Regulator PACKAGING DATA SHEET PSU733468 Regulator (Copies of specifications, standards, drawings, and packaging data
5、 sheets required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the con- tracting officer . ) FSC 1240 THIS DBCUMENT CONTAINS PACES. r A ,?7 ( L. . i Provided by IHSNot for ResaleNo reproduction or networking permitted
6、without license from IHS-,-,-MIL-R-48442 12 7777706 0320463 MIL-R-48442 (MU) 3. REQUIREMENTS 3.1 Fabrication.- This Regulator shall be manufactured in accordance with Drawing Dl1733468 and all drawings pertaining thereto, and shall conform to the requirements of 3.3 through 3.3.2 inclusive. 3.2 Mate
7、rials.- Materials shall be in accordance with drawings, material specifications and general specifications forming a part of this specification. 3.2.1 Nonflammable materials.- External parts and coatings of the regulator shall be of nonflammable material. 3.2.2 Fungus resistant material.- Regulator
8、external parts shall be inherently nonnutrient of fungus. 3.2.3 Inclosure.- The regulator shall be inclosed in a metallic case.which shall be insulated from one input terminal and one output terminal and one battery contact. 3.2.4 External surfaces.- Surfaces shall exhibit no evidence of peeling, fl
9、aking, chipping, cracking, crazing, or other impairment of the coating subsequent to meeting the requirements specified herein. 3.3 Construction.- The regulator shall be manufactured in accordance with Drawing D11733468. Where specific manufacturing processes are not specified, good commercial metho
10、ds consistant with the present state of the art shall be employed. 3.3.1 Internal wiring.- Internal dress of wires shall assure that no electrical short circuits occur under mechanical shock and vibration. 3.3.2 Internal components.- Components in the regulator shall be rigidly secured to prevent pe
11、rmanent change in their relative position. Mounting methods shall not depend on solder alone for mechanical strength. Potting compound alone may be used to prevent movement of internal components, providing the compound does not flow at the specified maximum operating temperature (see 3.5.2). 3.4 Ge
12、neral specification.- The contractor shall be responsible for adherence to and compliance with the following requirements of Specification MIL-F-13926 : (a) Order of precedence. (b) Dimensions and tolerances. (c) Inorganic protective surface finishes. (d) Part identification and marking. (e) Workman
13、ship. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-48442 (MU) 3.5 Regulator performance: Environmental.- The regulator shall show no evidence of damage after exposure to 3.5.1 and 3.5.3 through 3.5.5. The regulator shall then be exposed to
14、 3.5.2. Specified ambient temperature extremes shall be within ? 5F. 3.5.1 Temperature cycling and thermal shock. - The regulator shall withstand in uninterrupted sequence the following ambient temperature excursions: (a) (b) A gradual increase to -25“F, maintained for at least (c) Immediate exposur
15、e to 75 k 15“F, maintained for at leat (d) A gradual increase from 75 t. 15F to 160“F, maintained (e) A decrease to 125“F, maintained for at least one hour. (f) Immediate exposure to 75 tr 15F. A gradual decrease from 75 tr 15F to -80“F, maintained- for at least one hour. one hour. one hour. for at
16、least one hour. 3.5.2 Operating temperature.- Unless otherwise specified, the regulator shall meet the requirements of 3.6 and 3.7, after at least a two hour exposure, at the ambient temperatures of -40F and +125“F. 3.5.3 Hermetic sealing.- When thermally stabilized at an ambient temperature not in
17、excess of 100“F, the regulator shall exhibit no evidence of compound or air leakage when immersed (for no less than two minutes, and no more than three minutes) in a bath of water maintained at a minimum ambient temperature of 180F. 3.5.4 Shock.- The regulator shall show no evidence of damage when s
18、ubjected to 6 shock pulses parallel to, and 6 shock pulses perpendicular to its 1ong:tudinal axis, at an ambient temperature of 75 rt 15F. Each shock impact shall have the following characteristics. (a) (b) (c) The energy under each shock curve shall not be less (d) The after oscillations shall not
19、exceed 15% of the A half-sine wave pulse of at least 75 gravity units A pulse duration of 6 5 2 milliseconds between the 1o“k (Gs) at its peak. values of its peak amplitude. than 0.25 G second. nominal half-sine wave peak amplitude. 3.5.5 Vibration.- The regulator shall show no evidence of damage wh
20、en vibrated for 10 minutes in each of its 3 mutually perpendicular axes (total of 30 minutes) at an ambient temperature of 75 5 15F. The vibration shall be a simple harmonic motion having a 0.03 inch amplitude (0.06 inch total excursion). The frequency shall vary uniformly over a range of 10 to 55 c
21、ycles per second (cps) and return to 10 cps in one minute. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-R-48442 li! = 7777706 0320463 1 - MIL-R-48442 (MU) 3.6 Perf ormance electrical . 3.6.1 Polarization of input terminal.- The regulator inp
22、ut terminal shall be polarized positive with respect to the regulator metallic case , which shall be negative and considered as electrical circuit ground. 3.6.2 polarization of output terminai.- The regulator output terminal shall deliver an electrical potential of positive polarity with respect to
23、the regulator metallic case, which shall be negative and considered as electrical circuito ground. 3.6.3 Polarization of battery terminal.- The regulator battery terminal shall be polarized positive with respect to the regulator metallic case, which shall be negative and considered as electrical cir
24、cuit ground. 3.6.4 Input potential.- The regulator shall be energized by a direct current (dc) electrical potential of from 18.0 to 30.0 volts. 3.6.5 Reverse polarity.- The regulator shall not be damaged by the application of electrical potentials of 3.6.4 in reverse polarity. 3.7 Performance - oper
25、ational.- The regulator shall exhibit no spasmodic or intermittent operation when meeting the following require- ments: 3.7.1 Electrical shock.- The regulator under full load (see 3.7.3) shall meet the following requirements after being subjected to one hour of intermittent operation consisting of a
26、 continuously repetitive 30 second ON and 30 second OFF cycle at an ambient temperature of 75 k 15F only. 3.7.2 Input voltage surge.- The regulator shall show no evidence of damage, and shall exhibit no increase in output voltage for any time period, when the regulator input is subjected to at least
27、 a 100 millisecond voltage spike having a minimum amplitude of 80.0 dc volts. 3.7.3 Output current.- The regulator shall deliver, under full load, at least 45.0 dc milliamperes when meeting the requirement 3.7.5. 3.7.4 Output voltage.- The regulator shall deliver a dc voltage of 2.65 5 .3 volts at a
28、ll operating temperatures described in 3.5.2. Above outputs shall be with an input voltage over the range specified in 3.6.4, 3.7.5 Emergency power source.- The regulator shall supply a voltage at the output connector equal to the voltage of two BA42 batteries. This voltage shall be connected to the
29、 battery contact positive with respect to case ground, with no voltage applied to the input. When an input is supplied over the range specified in 3.6.4 the output shall be that specified in 3.7.4. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI
30、L-R-48442 (MU) 3.7.6 Rise time.- The regulator shall meet the output voltage requirement of 3.7.5 within 3.0 milliseconds of applying an input voltage of from 18.0 to 30.0 dc volts. 3.8 Reliability.- The minimum operating life of the Regulator shall be 1000 hours of continuous operation, and shall m
31、eet all requirements of this specification. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection.- Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specif
32、ied, the supplier may utilize his own facilities or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. the inspections set forth in the specification where such inspections are deemed necessary to assure supplies a
33、nd services conform to prescribed requirements. The Government reserves the right to perform any of 4.1.1 General provisions.- The component and subassembly inspection requirements of MIL-F-13926 form a part of the quality assurance provi- sions of this specification. Definitions of inspection terms
34、 shall be as listed in MIL-STD-109. 4.2 First article (initial production) approval.- The requirement for first article approval and the responsibility (Government or contractor) for first article testing shall be as specified in the contract. The sample for first article approval tests shall consis
35、t of 10 regulators 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 obtained from the same source of supply as used in regular production. 4.2.1 Government
36、testing.- When the Government is responsible for conducting first article approval tests, the contractor, prior to submitting the sample to the Government, shall inspect the sample to insure that it conforms to all the requirements of the contract and submit a record of this inspection with the samp
37、le, including certificates of conformance for materials. 4.2.2 Contractor testing.- When the contractor is responsible for conducting first article approval tests, the sample shall be inspected by the contractor for all the requirements of the contract. The sample and a record of this inspection, in
38、cluding certificates of conformance for materials, shall be submitted to the Government for approval. The Government reserves the right to witness the contractors inspection. 4.3 inspection provisions. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
39、,-MIL-R-48442 12 777770b 03204b5 5 W MIL-R-48442 (MU) 4.3.1 Submission of product.- Unless otherwise specified by the contracting officer, inspection lot size, lot formation and presentation of lots shall be in accordance with “Submission of Product“ provisions of MiL-STD-105. 4.3.2 Examination and
40、test.- Examination and tests related to Section 3 herein shall be performed on a single defect (individual characteristics) basis in accordance with MIL-STD-105 and the sampling plans specified in Tables I, LI and III herein. tests for packaging, packing and marking shall be in accordance with MTL-P
41、-14232 and Section 5 herein. defects in Tables I, II and III shall constitute the minimum inspection to be performed by the supplier after first article approval and prior to Government acceptance or rejection by item or lot. Examinations and The tabulated classification of TABLF, I - CLASSIFICATION
42、 OF DEFECTS- 100% INSPECTION - No. CHARACTERISTIC REQUIREMENT TEST PROCEDURE 101. 102. 103. 104. 105. 106. 107. 108. 109. 110. 111. Polarization of input terminai Polarization of output terminal Polar iza tion of bat ter y termina 1 Input potential Reverse polarity Electrical shock Input voltage sur
43、ge Output current Output volt age Emergency Power Source Rise time 3.6.1 3.6.2 3.6.3 3.6.4 3.6.5 3.7.1 3.7.2 3.7.3 3.7.4 3.7.5 3.7.6 4.6.3.1 4.6.3.2 4.6.3.3 4.6.3.4 4.6.3.5 4.6.4.1 4.6.4.2 4.6.4.3 4.6.4.4 4.6.4.5 4.6.4.5 NOTE: The tests in Table I shall be conducted at a temperature between +70“F an
44、d +80“F. 4.3.3 Acceptance and rejection.- Rejected lots shall be screened for all defective characteristics. Removal or correction of defective units and resubmittance of rejected lots shall be in accordance with II Acceptance and Rejection“ as specified in MIL-STD-105. 4.4 Special sampling. 4.4.1 G
45、eneral.- Three assemblies shall be selected at random as a special sampling fromeach 50 produced. the requirements and tests in Table II. The sample shall meet 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- NO. 301. 302. 303. 304. 305. 306. 307.
46、308. 309. FABLE II CHARACTERISTIC Fabrication Materials Non-flammable materials Inclosure External surfaces Construction Internal wiring Internal components General specifications MIL-R-48442 (MU) REQUIREMENT 3.1 and 3.3 3.2 3.2.1 3.2.3 3.2.4 3.3 3.3.1 3.3.2 3.4 TEST PROCEDURE 4.6.1.1 4.6.1.2 4.6.1.
47、2.1 4,6.1.2.3 4.6.1.2.4 4.6.1.3 4.6.1.3.1 4.6.1.3.2 Visual - MIL-F-13926 NOTE: The tests in Table II shall be conducted at a temperature between +70F and +80“F. 4.4.2 Environmental. - Three assemblies shall be selected at random as samples from each 50 produced, or from each months production, which
48、ever occurs first. Each sample shall meet the requirements and tests in Table III and shall then meet the requirements and tests in Table I. TABLE III - NO. CHARACTERISTIC REQUIREMENT TEST PROCEDURE 303. Temperature cycling and Thermal Shock 304. Operating Temperature 305. Hermetic Sealing 306. Shoc
49、k 307. Vibration 3.5.1 4.6.2.1 3.5.2 4.6.2.2 3.5.3 4.6.2.3 3.5.4 4.6.2.4 3.5.5 4.6.2.5 4.4.3 Failure of sample.- Should any one item of a special sampling fail to meet the specified test requirements, acceptance of the represented inspection lot shall be suspended by the Government until necessary corrections have been made by the contractor and the resubmitted items have been approved (see 4,3.3). 4.5 Inspection equipment.- E
