1、 MIL-F-18327F 19 August 2008_ SUPERSEDING MIL-F-18327E 17 July 1981 MILITARY SPECIFICATION FILTERS; HIGH PASS, LOW PASS, BAND PASS, BAND SUPPRESSION, AND DUAL FUNCTIONING, GENERAL SPECIFICATION FOR This specification is approved for use by all Depart- ments and Agencies of the Department of Defense.
2、 1. SCOPE 1.1 Scope. This specification covers the general requirements for passive frequency-selective networks, such as dual functioning, band suppression, band pass, low pass, and high pass (or any combination thereof) electric-wave filters, including those employing electromechanical and piezoel
3、ectric elements, for use over the frequency range of 0 to 500 megahertz. Filters covered by this specification are intended for use where operation under various environmental conditions is required. This specification covers filters weighing not more than 50 pounds and requiring root-mean-square te
4、st voltage ratings not greater than 5,000 volts. 1.2 Classification. 1.2.1 Type designation. The type designation is in the following form and as specified. The type designation does not describe a discrete item. For complete identification, the part number and type designation should be referenced.
5、 FR 6 P X 22 PB 1 Component Grade Class Life Family Case and Composition (1.2.1.1) (1.2.1.2) (1.2.1.3) expectancy (1.2.1.5) mounting (1.2.1.7) (1.2.1.4) dimensions (1.2.1.6) 1.2.1.1 Component. Filters are identified by the two-letter symbol “FR”. 1.2.1.2 Grade. The grade is identified by a single di
6、git in accordance with table I, denoting the type of enclosure and the vibration frequency level (see 4.7.12). TABLE I. Grade. Symbol Type of enclosure Vibration frequency level 4 5 6 7 8 9 Metal-encased Encapsulated Metal-encased Encapsulated Metal-encased Encapsulated Hz 10 - 55 10 - 55 10 - 2,000
7、 10 - 2,000 10 - 500 10 - 500 AMSC N/A FSC 5915 Comments, suggestions, or questions on this document should be addressed to: Defense Supply Center, Columbus, DSCC-VAT, Post Office Box 3990, Columbus, OH 43218-3990 or e-mailed to capacitorfilterdla.mil. Since contact information can change, you may w
8、ant to verify the currency of this address information using the ASSIST Online database at http:/assist.daps.dla.mil.INCH-POUNDINACTIVE FOR NEW DESIGN after 31 March 1999 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-18327F 2 1.2.1.3 Class. T
9、he class is identified by a single letter in accordance with table II, denoting the maximum operating temperature (see 6.4) for the realization of the life expectancy indicated in table III. TABLE II. Class. Symbol Maximum operating temperature C P Q R S V 65 85 105 125 Above 125 1.2.1.4 Life expect
10、ancy. The life expectancy is identified by a single letter in accordance with table III. TABLE III. Life expectancy. Symbol Life (hours, minimum) X Y 10,000 2,500 1.2.1.5 Family. The family is identified by a two-digit symbol in accordance with table IV. TABLE IV. Family. Family Application 11 12 13
11、 22 24 33 44 Filter, low pass Filter, low pass and band pass (combination) Filter, low pass and high pass (combination) Filter, band pass Filter, band pass and band suppression (combination) Filter, high pass Filter, band suppression 1.2.1.6 Case and mounting dimensions. The case and mounting dimens
12、ions are designated by a two-letter symbol in accordance with figures 1 to 6 inclusive. 1.2.1.6.1 Envelope and mounting dimensions for grades 5, 7, and 9 filters. Maximum envelope dimensions for grades 5, 7, and 9 filters are specified on figure 1. Mounting dimensions are identical to the dimensions
13、 specified for the equivalent cased-filter size. 1.2.1.7 Composition. The composition of the filter is identified by a single-digit symbol denoting the principal resonators in accordance with table V. TABLE V. Composition. Symbol Principal resonators 1 2 3 LC Crystal Other electromechanical Provided
14、 by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-18327F 3 FIGURE 1. Envelope and mounting dimensions. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Envelope dimensions Mounting dimensions Template Case
15、 symbol A B C D E S F (Stud) L AF AG AH AJ EA EB FA FB GA GB HA HB JA JB KA KB LA LB MA MB NA NB OA .750 ( 19.05) 1.000 ( 25.40) 1.312 ( 33.32) 1.625 ( 41.28) 1.938 ( 49.23) 1.938 ( 49.23) 2.312 ( 58.72) 2.312 ( 58.72) 2.750 ( 69.85) 2.750 ( 69.85) 3.062 ( 77.77) 3.062 ( 77.77) 3.562 ( 90.47) 3.562
16、( 90.47) 3.938 (100.03) 3.938 (100.03) 4.312 (109.52) 4.312 (109.52) 4.688 (119.08) 4.688 (119.08) 5.062 (128.57) 5.062 (128.57) 5.500 (139.70) .750 ( 19.05) 1.000 ( 25.40) 1.312 ( 33.32) 1.625 ( 41.28) 1.812 ( 46.02) 1.812 ( 46.02) 2.062 ( 52.37) 2.062 ( 52.37) 2.375 ( 60.33) 2.375 ( 60.33) 2.625 (
17、 66.68) 2.625 ( 66.68) 3.062 ( 77.77) 3.062 ( 77.77) 3.375 ( 85.73) 3.375 ( 85.73) 3.688 ( 93.68) 3.688 ( 93.68) 4.000 (101.60) 4.000 (101.60) 4.312 (109.52) 4.312 (109.52) 4.500 (114.30) 1.125 ( 28.58) 1.375 ( 34.93) 1.750 ( 44.45) 2.375 ( 60.33) 2.750 ( 69.85) 2.438 ( 61.93) 3.125 ( 79.38) 2.500 (
18、 63.50) 3.812 ( 96.82) 2.812 ( 71.42) 4.250 (107.95) 3.188 ( 80.98) 4.875 (123.83) 3.875 ( 98.43) 5.250 (133.35) 4.312 (109.52) 5.562 (141.27) 4.500 (114.30) 6.000 (152.40) 4.938 (125.43) 6.812 (173.02) 5.500 (139.70) 6.750 (171.45) - - - 1.188 ( 30.18) 1.375 ( 34.93) 1.375 ( 34.93) 1.688 ( 42.88) 1
19、.688 ( 42.88) 2.125 ( 53.98) 2.125 ( 53.98) 2.297 ( 58.34) 2.297 ( 58.34) 2.625 ( 66.68) 2.625 ( 66.68) 3.000 ( 76.20) 3.000 ( 76.20) 3.312 ( 84.12) 3.312 ( 84.12) 3.688 ( 93.68) 3.688 ( 93.68) 4.062 (103.17) 4.062 (103.17) 3.750 ( 95.25) - - - 1.188 (30.18) 1.250 (31.75) 1.250 (31.75) 1.438 (36.53)
20、 1.438 (36.53) 1.750 (44.45) 1.750 (44.45) 1.859 (47.22) 1.859 (47.22) 2.125 (53.98) 2.125 (53.98) 2.438 (61.93) 2.438 (61.93) 2.688 (68.28) 2.688 (68.28) 3.000 (76.20) 3.000 (76.20) 3.312 (84.12) 3.312 (84.12) 3.000 (76.20) 0.562 ( 14.27) 0.750 ( 19.05) 1.250 ( 31.75) 1.680 ( 42.67) 1.858 ( 47.19)
21、1.858 ( 47.19) 2.217 ( 56.31) 2.217 ( 56.31) 2.753 ( 69.93) 2.753 ( 69.93) 2.955 ( 75.06) 2.955 ( 75.06) 3.377 ( 85.78) 3.377 ( 85.78) 3.866 ( 98.20) 3.866 ( 98.20) 4.266 (108.36) 4.266 (108.36) 4.754 (120.75) 4.754 (120.75) 5.243 (133.17) 5.243 (133.17) 4.802 (121.97) .112-40x.375 .112-40x.375 .138
22、-32x.375 .138-32x.375 .138-32x.375 .138-32x.375 .138-32x.375 .138-32x.375 .138-32x.375 .138-32x.375 .164-32x.375 .164-32x.375 .164-32x.375 .164-32x.375 .190-32x.500 .190-32x.500 .190-32x.500 .190-32x.500 .250-20x.625 .250-20x.625 .250-20x.625 .250-20x.625 .250-20x.625 .147 (3.73) .147 (3.73) .173 (4
23、.39) .173 (4.39) .173 (4.39) .173 (4.39) .173 (4.39) .173 (4.39) .173 (4.39) .173 (4.39) .199 (5.05) .199 (5.05) .199 (5.05) .199 (5.05) .228 (5.79) .228 (5.79) .228 (5.79) .228 (5.79) .316 (8.03) .316 (8.03) .316 (8.03) .316 (8.03) .316 (8.03) YY All metal cases not included above ZZ All encapsulat
24、ed units not included above See footnotes at top of next page. 4 MIL-F-18327F Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-18327F 5 NOTES: 1. Cases AF through OA inclusive have studs and terminals on same face. Stud size and length are as sh
25、own in dimension F. 2. Dimensions are in inches. 3. Metric equivalents are given for general information only. 4. Tolerances on dimensions A and B are +.000, -.062 (+0.00, -1.57 mm) for cases AF, AG, AH, and AJ; +.000, -.125 (+0.00 -3.18 mm) for all other cases. 5. Tolerances on dimensions C are +.0
26、00, -.125 (+0.00, -3.18 mm) for cases AF, AG, AH, and AJ; +.000, - .185 (+0.00, -4.78 mm) for all other cases. 6. Tolerances on dimensions D and E are .016 (0.41 mm) for cases AJ to JB inclusive; .031 (0.79 mm) for cases KA to LB inclusive; and .047 (1.19 mm) for cases MA to OA inclusive. The center
27、lines of the drawings are the centerlines of the case; D/2 and E/2 are the reference dimensions. 7. Tolerances for cases YY and ZZ are as follows: Dimensions not exceeding those for the AJ case have the same tolerances as the AJ cases. For larger dimensions up to case size OA, the tolerances in note
28、s 4, 5, and 6 apply. For case sizes larger than OA, tolerances are as specified. Dimensions A, B, and C for ZZ cases are considered maximum dimensions (see 3.1). 8. Tolerances on dimension S for two-stud mounting are .016 (0.41 mm) for cases AF to AH inclusive. For four-stud mounting, the difference
29、 between the two diagonal S dimensions should not exceed 1.5 times the tolerance specified for dimensions D and E in note 6. 9. Screw-stud lengths are measured from the mounting surface and have a length tolerance of .062 (1.57 mm) on studs .500 (12.70 mm) long or less, and .125 (3.18 mm) on studs o
30、ver .500 (12.70 mm) long. Mounting screw inserts may be supplied instead of studs for case sizes AF, AG, and AH, or units of equivalent volume and have a minimum depth equivalent to eight full threads (grades 4, 6, and 8 only) of the same diameter as the stud of the corresponding case size. Inserts
31、meet all stud requirements. 10. Rectangular cases may have corner radii not to exceed one-quarter of the smallest envelope dimensions. 11. When mounted, tilt of units (overhand only) measured horizontally or vertically, may not exceed .016 (0.41 mm) per inch of height but need not be less than .016
32、(0.41 mm) for any height, and are referenced to the maximum specified case dimensions. 12. Templates used for verifying mounting stud dimensions are a minimum of .375 (9.52 mm) inch thick and have nominal D, E, S, and L dimensions shown for each case size. The tolerance for template dimensions D, E,
33、 and S is .001 (0.03 mm) inch, and .0005 (0.013 mm) inch for dimension L. FIGURE 1. Envelope and mounting dimensions Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-18327F 6 FIGURE 2. Case and mounting dimensions for PA, PB, PC, PY,
34、and PZ. Dimensions .062 Case symbol X Y Z PA 1.750 (44.45) 1.750 (44.45) 3.000 (76.20) PB 2.062 (52.37) 2.937 (74.60) 2.562 (65.07) PC 2.562 (65.07) 4.937 (125.40) 2.562 (65.07) PY All sizes not included above. PZ All encapsulated units not included above and all open type units. Provided by IHSNot
35、for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-18327F 7 Inches Millimeters Ref Min Nom Max Min Nom Max Degrees Notes A B J L M N P Q R1R2R3S U1U2V1V2W1W2a b - .090 .320 .427 - - .550 .490 - - - .040 .305 .300 .352 .343 .085 .075 - - .687 .093 - .437 - - .560 .50
36、0 .031r - .040r .047 .312 .308 .362 .353 .090 .080 - - - .096 - .447 .135 .050 .570 .510 - .050r - .055 .317 .315 .372 .363 .095 .085 - - - 2.286 8.13 10.85 - - 13.97 12.45 - - - 1.02 7.75 7.62 8.95 8.72 2.159 1.905 - - 17.45 2.362 - 11.10 - - 14.22 12.70 0.79r - 1.02r 1.19 7.92 7.82 9.19 8.97 2.286
37、 2.032 - - - 2.438 - 11.35 3.42 1.27 14.47 12.95 - 1.27r - 1.39 8.05 8.00 9.44 9.22 2.413 2.159 - - 22.5 45 5 6 7 For the purpose of establishing interchangeability, the dimensional limits given here are standard for the orientation of base pins and index guide of Group No. 1 bases. (Formerly known
38、as Octal Bases.) The vertical dimensions are referred to the underside of a base as differentiated from the general practice in this standard of dimensioning from the outer rim. NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Dimensions fixing the
39、 contact pin positions refer to their fixed ends and are given for information only. Pin positions may be checked by means of alignment gauge No. GB8-1 in accordance with EIA Standard RS-209-A. For bases with coaxial lead, use gauge GB8-1 with pin 4 pin hole, .1600 .0005 (4.064 0.013 mm) diameter to
40、 a depth of 1.25 (31.8 mm) minimum. 4. Underside of base. 5. Dimension B does not include increase in pin diameter due to solder. 6. Dimension L may be increased by .030 (0.76 mm) maximum for solder. 7. Any projection on the under-surface of the base other than those shown, such as a rim or external
41、 barriers, have a height not exceeding .045 (1.14 mm). 8. Pin numbering is viewed from the pin ends. The drawing shows the numbering of the pins as seen from their free ends. 9. External mounting support required for plug in type filters having no means of support other than socket. 10. The numbers
42、indicated above each base drawing refer to the Group Number of Pin and Index Guide Dimensional Limits. FIGURE 2. Case and mounting dimensions for PA, PB, PC, PY, and PZ - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-18327F 8 Mount
43、ing dimensions flange mount Mounting dimensions clamp mount Case symbol A.015 (0.38) B.005 (0.13) C.016 (0.41) D.015 (0.38) E.031 (0.79) F.015 (0.38) G.005 (0.13) Case symbol A.015 (0.38) B.031 (0.79) C.015 (0.38) QC 1.423 (36.14) 1.125 (28.58) 1.016 (25.81) 2.766 (70.26) .625 (15.88) .266 (6.76) .7
44、75 (19.68) QA .775 (19.68) 3.500 (88.90) .266 (6.76) QD 1.000 (25.40) .750 (19.05) .625 (15.88) 2.250 (57.15) .625 (15.88) .266 (6.76) .437 (11.10) QB .438 (11.13) 2.188 (55.58) .141 (3.58) QY All sizes not included above. QZ All sizes not included above NOTES: 1. Dimensions are in inches. 2. Metric
45、 equivalents are given for general information only. 3. Terminal positions are optional. FIGURE 3. Case and mounting dimensions for QA, QB, QC, QD, QY, and QZ. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-18327F 9 Case symbol X max XA max Y
46、max Z max AA AB AC max SA 1.281 (32.54) 1.187 (30.15) 2.312 (58.72) 2.875 (73.03) 1.235 (31.37) 1.275 (32.29) .843 (21.41) .020 (0.51) SB 1.250 (31.75) 1.187 (30.15) 2.250 (57.15) 2.875 (73.03) 1.235 (31.37) 1.275 (32.39) .843 (21.41) .020 (0.51) SY All sizes not included above FIGURE 4. Case and mo
47、unting dimensions for SA, SB, and SY. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-18327F 10 Inches Millimeters Ref Min Nom Max Min Nom Max Degrees Notes A B J L M N P Q R1R2R3S U1U2V1V2W1W2a b - .090 .320 .427 - - .550 .490 - - - .040 .305
48、.300 .352 .343 .085 .075 - - .687 .093 - .437 - - .560 .500 .031r - .040r .047 .312 .308 .362 .353 .090 .080 - - - .096 - .447 .135 .050 .570 .510 - .050r - .055 .317 .315 .372 .363 .095 .085 - - - 2.286 8.13 10.85 - - 13.97 12.45 - - - 1.02 7.75 7.62 8.95 8.72 2.159 1.905 - - 17.45 2.362 - 11.10 - - 14.22 12.70 0.79r - 1.02r 1.19 7.92 7.82 9.19 8.97 2.286 2.032 - - - 2.438 -
