1、AMSC N/A FSC 5910 INCH-POUND MIL-PRF-14409/5G 4 December 2013 SUPERSEDING MIL-PRF-14409/5F 7 March 2007 PERFORMANCE SPECIFICATION SHEET CAPACITORS, VARIABLE (PISTON TYPE, TUBULAR TRIMMER), STYLE PC39 This specification sheet is approved for use by all Departments and Agencies of the Department of De
2、fense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-PRF-14409. NOTES: 1. Dimensions are in inches. 2. Metric equivalents (to the nearest 0.01 mm) are given for general information only and are based upon 1 inch = 25.4 mm. 3. Unless oth
3、erwise specified, tolerance is .016. 4. The flat on the mounting bushing shall extend to the mounting surface of the shoulder. 5. The turret cap shall be soldered to the cylinder with high temperature solder having minimum melting point of 232C. 6. For dimension A see table I. FIGURE 1. Dimensions a
4、nd configuration.Inches mm .005 0.13 .016 0.41 .020 0.51 .031 0.79 .080 2.03 .094 2.39 .125 3.18 .167 4.24 .171 4.34 .175 4.45 .191 4.85 .195 4.95 .281 7.14 .312 7.92 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-14409/5G 2 REQUIREMENTS: Di
5、mensions: See figure 1 and table I. DC voltage rating: 1,000 volts. Construction: Sealed glass, see figure 1 and table I. Capacitance range: See table I. Insulation resistance (IR): Method 302 of MIL-STD-202, test condition B (500 volts 10 percent); not less than 1,000,000 megohms at room ambient te
6、mperature and not less than 100,000 megohms at 125C. Quality factor (Q): See table I. Thermal Shock: Method 107 of MIL-STD-202, test condition A, except the step 3 temperature shall be 125C 5C. Immersion: Method 104 of MIL-STD-202, test condition A. Seal test: Applicable. Rotational life: Capacitanc
7、e change versus rotation: No reversal greater than 2 percent. TABLE I. Type designation and characteristics. Type designation Capacitance range Dimensions 1/ A .031 (0.79) Q Temperature coefficient parts/million/C Dielectric material Min Max PC39G160 PC39G360 PC39G520 PC39G750 PC39G121 PC39J121 pF 1
8、.0 1.0 1.0 1.0 1.0 1.0 pF 16.0 36.0 52.0 75.0 120.0 120.0 .469 (11.91) .703 (17.86) .922 (23.42) 1.172 (29.77) 1.766 (44.86) 1.766 (44.86) 750 550 350 250 250 250 150 150 150 150 150 50 Glass Glass Glass Glass Glass Glass 1/ Metric equivalents (to the nearest 0.01 mm) are given for general informati
9、on only and are based upon 1 inch = 25.4 mm. Millimeters are in parentheses. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-14409/5G 3 Changes from previous issue: The margins of this specification are marked with vertical lines to indicate
10、where changes from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespectiv
11、e of the marginal notations and relationship to the last previous issue. Referenced documents: In addition to MIL-PRF-14409, this document also references MIL-STD-202. Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air Force - 85 (Project 5910-2013-029) DLA - CC Review activities: Navy
12、 - AS, MC, OS NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
